diff --git a/README.md b/README.md
index ea522320..bf83b86b 100644
--- a/README.md
+++ b/README.md
@@ -48,43 +48,43 @@ permissions: 763KB
   <dependency>
     <groupId>top.qscraft.dodoopenjava</groupId>
     <artifactId>core</artifactId>
-    <version>2.5.1</version>
+    <version>2.5.2</version>
   </dependency>
   <dependency>
     <groupId>top.qscraft.dodoopenjava</groupId>
     <artifactId>command</artifactId>
-    <version>2.5.1</version>
+    <version>2.5.2</version>
   </dependency>
   <dependency>
     <groupId>top.qscraft.dodoopenjava</groupId>
     <artifactId>configuration</artifactId>
-    <version>2.5.1</version>
+    <version>2.5.2</version>
   </dependency>
   <dependency>
     <groupId>top.qscraft.dodoopenjava</groupId>
     <artifactId>event-core</artifactId>
-    <version>2.5.1</version>
+    <version>2.5.2</version>
   </dependency>
   <dependency>
     <groupId>top.qscraft.dodoopenjava</groupId>
     <artifactId>event-websocket</artifactId>
-    <version>2.5.1</version>
+    <version>2.5.2</version>
   </dependency>
   <dependency>
     <groupId>top.qscraft.dodoopenjava</groupId>
     <artifactId>event-webhook</artifactId>
-    <version>2.5.1</version>
+    <version>2.5.2</version>
   </dependency>
   <dependency>
     <groupId>top.qscraft.dodoopenjava</groupId>
     <artifactId>permissions</artifactId>
-    <version>2.5.1</version>
+    <version>2.5.2</version>
   </dependency>
   <!--又或者直接合成一个依赖项-->
   <dependency>
     <groupId>top.qscraft</groupId>
     <artifactId>dodoopenjava</artifactId>
-    <version>2.5.1</version>
+    <version>2.5.2</version>
   </dependency>
 </dependencies>
 ```
@@ -97,15 +97,15 @@ permissions: 763KB
 	}
 
 	dependencies {
-	        implementation 'top.qscraft.dodoopenjava:core:2.5.1'
-	        implementation 'top.qscraft.dodoopenjava:command:2.5.1'
-	        implementation 'top.qscraft.dodoopenjava:configuration:2.5.1'
-	        implementation 'top.qscraft.dodoopenjava:event-core:2.5.1'
-	        implementation 'top.qscraft.dodoopenjava:event-websocket:2.5.1'
-	        implementation 'top.qscraft.dodoopenjava:event-webhook:2.5.1'
-	        implementation 'top.qscraft.dodoopenjava:permissions:2.5.1'
+	        implementation 'top.qscraft.dodoopenjava:core:2.5.2'
+	        implementation 'top.qscraft.dodoopenjava:command:2.5.2'
+	        implementation 'top.qscraft.dodoopenjava:configuration:2.5.2'
+	        implementation 'top.qscraft.dodoopenjava:event-core:2.5.2'
+	        implementation 'top.qscraft.dodoopenjava:event-websocket:2.5.2'
+	        implementation 'top.qscraft.dodoopenjava:event-webhook:2.5.2'
+	        implementation 'top.qscraft.dodoopenjava:permissions:2.5.2'
 		//又或者直接合成一个依赖项
-	        implementation 'top.qscraft:dodoopenjava:2.5.1'
+	        implementation 'top.qscraft:dodoopenjava:2.5.2'
     }
 ```
 ### 教程(编写中，只差实战部分)
diff --git a/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/BotApi.java b/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/BotApi.java
index ac9ae42a..c870ce18 100644
--- a/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/BotApi.java
+++ b/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/BotApi.java
@@ -10,7 +10,6 @@
  * 机器人API
  */
 public class BotApi {
-    public static String url, param;
 
     /**
      * 获取机器人信息
@@ -32,8 +31,8 @@ public static JSONObject getBotInfo(String clientId, String token) throws IOExce
      * @throws IOException 发送请求失败后抛出
      */
     public static JSONObject getBotInfo(String authorization) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/bot/info";
-        param = "{}";
+        String url = "https://botopen.imdodo.com/api/v2/bot/info";
+        String param = "{}";
         return new JSONObject(NetUtil.sendRequest(param, url, authorization));
     }
 
@@ -59,8 +58,8 @@ public static JSONObject setBotIslandLeave(String clientId, String token, String
      * @throws IOException 发送请求失败后抛出
      */
     public static JSONObject setBotIslandLeave(String authorization, String islandSourceId) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/bot/island/leave";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/bot/island/leave";
+        String param = "{" +
                 "    \"islandSourceId\": \"" + islandSourceId + "\"" +
                 "}";
         return new JSONObject(NetUtil.sendRequest(param, url, authorization));
@@ -76,8 +75,8 @@ public static JSONObject setBotIslandLeave(String authorization, String islandSo
      * @throws IOException 发送请求失败后抛出
      */
     public static JSONObject getBotInviteList(String authorization, int pageSize, long maxId) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/bot/invite/list";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/bot/invite/list";
+        String param = "{" +
                 "    \"pageSize\":" + pageSize + "," +
                 "    \"maxId\":" + maxId + "" +
                 "}";
@@ -93,8 +92,8 @@ public static JSONObject getBotInviteList(String authorization, int pageSize, lo
      * @throws IOException 发送请求失败后抛出
      */
     public static JSONObject addBotInvite(String authorization, String dodoSourceId) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/bot/invite/add";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/bot/invite/add";
+        String param = "{" +
                 "    \"dodoSourceId\": \"" + dodoSourceId + "\"" +
                 "}";
         return new JSONObject(NetUtil.sendRequest(param, url, authorization));
@@ -109,8 +108,8 @@ public static JSONObject addBotInvite(String authorization, String dodoSourceId)
      * @throws IOException 发送请求失败后抛出
      */
     public static JSONObject removeBotInvite(String authorization, String dodoSourceId) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/bot/invite/remove";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/bot/invite/remove";
+        String param = "{" +
                 "    \"dodoSourceId\": \"" + dodoSourceId + "\"" +
                 "}";
         return new JSONObject(NetUtil.sendRequest(param, url, authorization));
diff --git a/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/ChannelApi.java b/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/ChannelApi.java
index 3086b3c7..5d40f194 100644
--- a/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/ChannelApi.java
+++ b/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/ChannelApi.java
@@ -10,7 +10,6 @@
  * 频道API
  */
 public class ChannelApi {
-    public static String url, param;
 
     /**
      * 获取频道列表
@@ -34,8 +33,8 @@ public static JSONObject getChannelList(String clientId, String token, String is
      * @throws IOException 失败后抛出
      */
     public static JSONObject getChannelList(String authorization, String islandSourceId) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/channel/list";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/channel/list";
+        String param = "{" +
                 "    \"islandSourceId\": \"" + islandSourceId + "\"" +
                 "}";
         return new JSONObject(NetUtil.sendRequest(param, url, authorization));
@@ -63,8 +62,8 @@ public static JSONObject getChannelInfo(String clientId, String token, String ch
      * @throws IOException 失败后抛出
      */
     public static JSONObject getChannelInfo(String authorization, String channelId) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/channel/info";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/channel/info";
+        String param = "{" +
                 "    \"channelId\": \"" + channelId + "\"" +
                 "}";
         return new JSONObject(NetUtil.sendRequest(param, url, authorization));
@@ -96,8 +95,8 @@ public static JSONObject addChannel(String clientId, String token, String island
      * @throws IOException 失败后抛出
      */
     public static JSONObject addChannel(String authorization, String islandSourceId, String channelName, int channelType) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/channel/add";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/channel/add";
+        String param = "{" +
                 "    \"islandSourceId\": \"" + islandSourceId + "\"," +
                 "    \"channelName\": \"" + channelName + "\"," +
                 "    \"channelType\": " + channelType + "" +
@@ -131,8 +130,8 @@ public static JSONObject editChannel(String clientId, String token, String islan
      * @throws IOException 失败后抛出
      */
     public static JSONObject editChannel(String authorization, String islandSourceId, String channelName, String channelId) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/channel/edit";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/channel/edit";
+        String param = "{" +
                 "    \"islandSourceId\": \"" + islandSourceId + "\"," +
                 "    \"channelId\": \"" + channelId + "\"," +
                 "    \"channelName\": \"" + channelName + "\"" +
@@ -164,8 +163,8 @@ public static JSONObject deleteChannel(String clientId, String token, String isl
      * @throws IOException 失败后抛出
      */
     public static JSONObject deleteChannel(String authorization, String islandSourceId, String channelId) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/channel/remove";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/channel/remove";
+        String param = "{" +
                 "    \"islandSourceId\": \"" + islandSourceId + "\"," +
                 "    \"channelId\": \"" + channelId + "\"" +
                 "}";
diff --git a/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/ChannelArticleApi.java b/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/ChannelArticleApi.java
index 9fa57cdc..16fb7a45 100644
--- a/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/ChannelArticleApi.java
+++ b/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/ChannelArticleApi.java
@@ -10,8 +10,6 @@
  * 帖子频道API
  */
 public class ChannelArticleApi {
-    public static String url, param;
-
     /**
      * 发布帖子
      *
@@ -40,8 +38,8 @@ public static JSONObject addChannelArticle(String channelId, String title, Strin
      * @throws IOException 失败后抛出
      */
     public static JSONObject addChannelArticle(String channelId, String title, String content, String imageUrl, String authorization) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/channel/article/add";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/channel/article/add";
+        String param = "{" +
                 "    \"channelId\": \"" + channelId + "\"," +
                 "    \"title\": \"" + title + "\"," +
                 "    \"content\": \"" + content + "\"," +
@@ -77,8 +75,8 @@ public static JSONObject removeChannelArticle(int type, String id, String channe
      * @throws IOException 失败后抛出
      */
     public static JSONObject removeChannelArticle(int type, String id, String channelId, String authorization) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/channel/article/remove";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/channel/article/remove";
+        String param = "{" +
                 "    \"id\": \"" + id + "\"," +
                 "    \"type\": " + type + "," +
                 "    \"channelId\": \"" + channelId + "\"" +
diff --git a/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/ChannelMessageApi.java b/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/ChannelMessageApi.java
index e3baf5ed..a6b0bb8b 100644
--- a/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/ChannelMessageApi.java
+++ b/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/ChannelMessageApi.java
@@ -12,7 +12,6 @@
  * 频道消息API
  */
 public class ChannelMessageApi {
-    public static String url, param;
 
     /**
      * 发送文本消息
@@ -38,8 +37,8 @@ public static JSONObject sendTextMessage(String clientId, String token, String c
      * @throws IOException 失败后抛出
      */
     public static JSONObject sendTextMessage(String authorization, String channelId, String Message) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/channel/message/send";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/channel/message/send";
+        String param = "{" +
                 "    \"channelId\": \"" + channelId + "\"," +
                 "    \"messageType\": 1," +
                 "    \"messageBody\": {" +
@@ -87,8 +86,8 @@ public static JSONObject setChannelMessageTop(String clientId, String token, Str
      * @throws IOException 失败后抛出
      */
     public static JSONObject setChannelMessageTop(String authorization, String messageId, int operateType) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/channel/message/top";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/channel/message/top";
+        String param = "{" +
                 "    \"messageId\": \"" + messageId + "\"," +
                 "    \"operateType\": " + operateType + "" +
                 "}";
@@ -117,8 +116,8 @@ public static JSONObject getChannelMessageReactionList(String clientId, String t
      * @throws IOException 失败后抛出
      */
     public static JSONObject getChannelMessageReactionList(String authorization, String messageId) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/channel/message/reaction/list";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/channel/message/reaction/list";
+        String param = "{" +
                 "    \"messageId\": \"" + messageId + "\"" +
                 "}";
         return new JSONObject(NetUtil.sendRequest(param, url, authorization));
@@ -146,8 +145,8 @@ public static JSONObject getChannelMessageReactionMemberList(String clientId, St
      * @throws IOException 失败后抛出
      */
     public static JSONObject getChannelMessageReactionMemberList(String authorization, String messageId, int type, String id, int pageSize, long maxId) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/channel/message/reaction/member/list";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/channel/message/reaction/member/list";
+        String param = "{" +
                 "    \"messageId\": \"" + messageId + "\",\n" +
                 "    \"emoji\": {\n" +
                 "        \"type\": " + type + ",\n" +
@@ -185,8 +184,8 @@ public static JSONObject referencedMessage(String clientId, String token, String
      * @throws IOException 失败后抛出
      */
     public static JSONObject referencedMessage(String authorization, String channelId, String Message, String referencedMessageId) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/channel/message/send";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/channel/message/send";
+        String param = "{" +
                 "    \"channelId\": \"" + channelId + "\"," +
                 "    \"messageType\": 1," +
                 "    \"messageBody\": {" +
@@ -227,14 +226,14 @@ public static JSONObject sendChannelPictureMessage(String clientId, String token
      * @throws IOException 失败后抛出
      */
     public static JSONObject sendChannelPictureMessage(String authorization, String channelId, String Url, int width, int height, Boolean isOriginal) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/channel/message/send";
+        String url = "https://botopen.imdodo.com/api/v2/channel/message/send";
         int Original;
         if (isOriginal) {
             Original = 1;
         } else {
             Original = 0;
         }
-        param = "{" +
+        String param = "{" +
                 "    \"channelId\": \"" + channelId + "\"," +
                 "    \"messageType\": 2," +
                 "    \"messageBody\": {" +
@@ -275,8 +274,8 @@ public static JSONObject sendChannelPictureMessage(String clientId, String token
      * @throws IOException 失败后抛出
      */
     public static JSONObject sendChannelPictureMessage(String authorization, String channelId, String Url, int width, int height) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/channel/message/send";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/channel/message/send";
+        String param = "{" +
                 "    \"channelId\": \"" + channelId + "\"," +
                 "    \"messageType\": 2," +
                 "    \"messageBody\": {" +
@@ -332,8 +331,8 @@ public static JSONObject sendChannelVideoMessage(String clientId, String token,
      * @throws IOException 失败后抛出
      */
     public static JSONObject sendChannelVideoMessage(String authorization, String channelId, String Url) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/channel/message/send";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/channel/message/send";
+        String param = "{" +
                 "    \"channelId\": \"" + channelId + "\"," +
                 "    \"messageType\": 3," +
                 "    \"messageBody\": {" +
@@ -373,8 +372,8 @@ public static JSONObject sendChannelVideoMessage(String clientId, String token,
      * @throws IOException 失败后抛出
      */
     public static JSONObject sendChannelVideoMessage(String authorization, String channelId, String Url, String coverUrl, long duration, long size) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/channel/message/send";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/channel/message/send";
+        String param = "{" +
                 "    \"channelId\": \"" + channelId + "\"," +
                 "    \"messageType\": 3," +
                 "    \"messageBody\": {" +
@@ -411,8 +410,8 @@ public static JSONObject sendChannelShareMessage(String clientId, String token,
      * @throws IOException 失败后抛出
      */
     public static JSONObject sendChannelShareMessage(String authorization, String channelId, String jumpUrl) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/channel/message/send";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/channel/message/send";
+        String param = "{" +
                 "    \"channelId\": \"" + channelId + "\"," +
                 "    \"messageType\": 4," +
                 "    \"messageBody\": {" +
@@ -450,8 +449,8 @@ public static JSONObject sendChannelFileMessage(String clientId, String token, S
      * @throws IOException 失败后抛出
      */
     public static JSONObject sendChannelFileMessage(String authorization, String channelId, String Url, String name, long size) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/channel/message/send";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/channel/message/send";
+        String param = "{" +
                 "    \"channelId\": \"" + channelId + "\"," +
                 "    \"messageType\": 5," +
                 "    \"messageBody\": {" +
@@ -487,8 +486,8 @@ public static JSONObject editChannelMessage(String clientId, String token, Strin
      * @throws IOException 失败后抛出
      */
     public static JSONObject editChannelMessage(String authorization, String messageId, String content) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/channel/message/edit";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/channel/message/edit";
+        String param = "{" +
                 "    \"messageId\": \"" + messageId + "\"," +
                 "    \"messageType\": 1," +
                 "    \"messageBody\": {" +
@@ -520,8 +519,8 @@ public static JSONObject withdrawChannelMessage(String clientId, String token, S
      * @throws IOException 失败后抛出
      */
     public static JSONObject withdrawChannelMessage(String authorization, String messageId) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/channel/message/withdraw";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/channel/message/withdraw";
+        String param = "{" +
                 "    \"messageId\": \"" + messageId + "\"" +
                 "}";
         return new JSONObject(NetUtil.sendRequest(param, url, authorization));
@@ -551,8 +550,8 @@ public static JSONObject withdrawChannelMessageWithReason(String clientId, Strin
      * @throws IOException 失败后抛出
      */
     public static JSONObject withdrawChannelMessageWithReason(String authorization, String messageId, String reason) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/channel/message/withdraw";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/channel/message/withdraw";
+        String param = "{" +
                 "    \"messageId\": \"" + messageId + "\"," +
                 "    \"reason\": \"" + reason + "\"" +
                 "}";
@@ -583,8 +582,8 @@ public static JSONObject addChannelMessageReaction(String clientId, String token
      * @throws IOException 失败后抛出
      */
     public static JSONObject addChannelMessageReaction(String authorization, String messageId, String id) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/channel/message/reaction/add";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/channel/message/reaction/add";
+        String param = "{" +
                 "    \"messageId\": \"" + messageId + "\"," +
                 "    \"emoji\": {" +
                 "        \"type\": 1," +
@@ -620,8 +619,8 @@ public static JSONObject removeChannelMessageReaction(String clientId, String to
      * @throws IOException 失败后抛出
      */
     public static JSONObject removeChannelMessageReaction(String authorization, String messageId, String id, String dodoSourceId) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/channel/message/reaction/remove";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/channel/message/reaction/remove";
+        String param = "{" +
                 "    \"messageId\": \"" + messageId + "\"," +
                 "    \"emoji\": {" +
                 "        \"type\": 1," +
@@ -656,8 +655,8 @@ public static JSONObject removeChannelMessageBotReaction(String clientId, String
      * @throws IOException 失败后抛出
      */
     public static JSONObject removeChannelMessageBotReaction(String authorization, String messageId, String id) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/channel/message/reaction/remove";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/channel/message/reaction/remove";
+        String param = "{" +
                 "    \"messageId\": \"" + messageId + "\"," +
                 "    \"emoji\": {" +
                 "        \"type\": 1," +
@@ -691,8 +690,8 @@ public static JSONObject sendCardMessage(String clientId, String token, String c
      * @throws IOException 失败后抛出
      */
     public static JSONObject sendCardMessage(String authorization, String channelId, Card messageBody) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/channel/message/send";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/channel/message/send";
+        String param = "{" +
                 "    \"channelId\": \"" + channelId + "\"," +
                 "    \"messageType\": 6," +
                 "    \"messageBody\": " + messageBody.toJSONObject().toString() +
@@ -724,8 +723,8 @@ public static JSONObject editChannelCardMessage(String clientId, String token, S
      * @throws IOException 失败后抛出
      */
     public static JSONObject editChannelCardMessage(String authorization, String messageId, Card messageBody) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/channel/message/edit";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/channel/message/edit";
+        String param = "{" +
                 "    \"messageId\": \"" + messageId + "\"," +
                 "    \"messageType\": 1," +
                 "    \"messageBody\": " + messageBody.toJSONObject().toString() +
diff --git a/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/ChannelVoiceApi.java b/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/ChannelVoiceApi.java
index 67b58194..08c1adf6 100644
--- a/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/ChannelVoiceApi.java
+++ b/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/ChannelVoiceApi.java
@@ -10,8 +10,6 @@
  * 语言频道API
  */
 public class ChannelVoiceApi {
-    public static String url, param;
-
     /**
      * 获取成员语音频道状态
      *
@@ -36,8 +34,8 @@ public static JSONObject getChannelVoiceMemberStatus(String islandSourceId, Stri
      * @throws IOException 失败后抛出
      */
     public static JSONObject getChannelVoiceMemberStatus(String islandSourceId, String dodoSourceId, String authorization) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/channel/voice/member/status";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/channel/voice/member/status";
+        String param = "{" +
                 "    \"islandSourceId\": \"" + islandSourceId + "\"," +
                 "    \"dodoSourceId\": \"" + dodoSourceId + "\"" +
                 "}";
@@ -71,8 +69,8 @@ public static JSONObject moveChannelVoiceMember(String islandSourceId, String do
      * @throws IOException 失败后抛出
      */
     public static JSONObject moveChannelVoiceMember(String islandSourceId, String dodoSourceId, String channelId, String authorization) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/channel/voice/member/move";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/channel/voice/member/move";
+        String param = "{" +
                 "    \"islandSourceId\": \"" + islandSourceId + "\"," +
                 "    \"dodoSourceId\": \"" + dodoSourceId + "\"," +
                 "    \"channelId\": \"" + channelId + "\"" +
@@ -106,8 +104,8 @@ public static JSONObject editChannelVoiceMember(int operateType, String dodoSour
      * @throws IOException 失败后抛出
      */
     public static JSONObject editChannelVoiceMember(int operateType, String dodoSourceId, String channelId, String authorization) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/channel/voice/member/edit";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/channel/voice/member/edit";
+        String param = "{" +
                 "    \"operateType\": " + operateType + "," +
                 "    \"dodoSourceId\": \"" + dodoSourceId + "\"," +
                 "    \"channelId\": \"" + channelId + "\"" +
diff --git a/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/GiftApi.java b/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/GiftApi.java
index a2a196a2..2d3865cf 100644
--- a/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/GiftApi.java
+++ b/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/GiftApi.java
@@ -10,8 +10,6 @@
  * 赠礼系统Api
  */
 public class GiftApi {
-    public static String url, param;
-
     /**
      * 获取群收入
      *
@@ -34,8 +32,8 @@ public static JSONObject getGiftAccount(String clientId, String token, String is
      * @throws IOException 发送请求失败后抛出
      */
     public static JSONObject getGiftAccount(String authorization, String islandSourceId) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/gift/account/info";
-        param = new JSONObject().put("islandSourceId", islandSourceId).toString();
+        String url = "https://botopen.imdodo.com/api/v2/gift/account/info";
+        String param = new JSONObject().put("islandSourceId", islandSourceId).toString();
         return new JSONObject(NetUtil.sendRequest(param, url, authorization));
     }
 
@@ -61,8 +59,8 @@ public static JSONObject getGiftShareRatioInfo(String clientId, String token, St
      * @throws IOException 发送请求失败后抛出
      */
     public static JSONObject getGiftShareRatioInfo(String authorization, String islandSourceId) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/gift/share/ratio/info";
-        param = new JSONObject().put("islandSourceId", islandSourceId).toString();
+        String url = "https://botopen.imdodo.com/api/v2/gift/share/ratio/info";
+        String param = new JSONObject().put("islandSourceId", islandSourceId).toString();
         return new JSONObject(NetUtil.sendRequest(param, url, authorization));
     }
 
@@ -90,8 +88,8 @@ public static JSONObject getGiftList(String clientId, String token, String targe
      * @throws IOException 发送请求失败后抛出
      */
     public static JSONObject getGiftList(String authorization, String targetId, int targetType) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/gift/list";
-        param = new JSONObject().put("targetId", targetId).put("targetType", targetType).toString();
+        String url = "https://botopen.imdodo.com/api/v2/gift/list";
+        String param = new JSONObject().put("targetId", targetId).put("targetType", targetType).toString();
         return new JSONObject(NetUtil.sendRequest(param, url, authorization));
     }
 
@@ -125,8 +123,8 @@ public static JSONObject getGiftMemberList(String clientId, String token, String
      * @throws IOException 发送请求失败后抛出
      */
     public static JSONObject getGiftMemberList(String authorization, String targetId, int targetType, String giftId, int pageSize, long maxId) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/gift/member/list";
-        param = new JSONObject().put("targetId", targetId).put("targetType", targetType).put("giftId", giftId).put("pageSize", pageSize).put("maxId", maxId).toString();
+        String url = "https://botopen.imdodo.com/api/v2/gift/member/list";
+        String param = new JSONObject().put("targetId", targetId).put("targetType", targetType).put("giftId", giftId).put("pageSize", pageSize).put("maxId", maxId).toString();
         return new JSONObject(NetUtil.sendRequest(param, url, authorization));
     }
 
@@ -158,8 +156,8 @@ public static JSONObject getGiftGrossValueList(String clientId, String token, St
      * @throws IOException 发送请求失败后抛出
      */
     public static JSONObject getGiftGrossValueList(String authorization, String targetId, int targetType, int pageSize, long maxId) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/gift/gross/value/list";
-        param = new JSONObject().put("targetId", targetId).put("targetType", targetType).put("pageSize", pageSize).put("maxId", maxId).toString();
+        String url = "https://botopen.imdodo.com/api/v2/gift/gross/value/list";
+        String param = new JSONObject().put("targetId", targetId).put("targetType", targetType).put("pageSize", pageSize).put("maxId", maxId).toString();
         return new JSONObject(NetUtil.sendRequest(param, url, authorization));
     }
 }
diff --git a/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/IntegralApi.java b/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/IntegralApi.java
index a0c5dfd5..76026aac 100644
--- a/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/IntegralApi.java
+++ b/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/IntegralApi.java
@@ -10,8 +10,6 @@
  * 积分API
  */
 public class IntegralApi {
-    public static String url, param;
-
     /**
      * 查询成员积分
      *
@@ -36,8 +34,8 @@ public static JSONObject getIntegralInfo(String clientId, String token, String i
      * @throws IOException 失败后抛出
      */
     public static JSONObject getIntegralInfo(String Authorization, String islandSourceId, String dodoSourceId) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/integral/info";
-        param = "{\n" +
+        String url = "https://botopen.imdodo.com/api/v2/integral/info";
+        String param = "{\n" +
                 "    \"islandSourceId\": \"" + islandSourceId + "\",\n" +
                 "    \"dodoSourceId\": \"" + dodoSourceId + "\"\n" +
                 "}";
@@ -72,8 +70,8 @@ public static JSONObject setIntegralEdit(String clientId, String token, String i
      * @throws IOException 失败后抛出
      */
     public static JSONObject setIntegralEdit(String Authorization, String islandSourceId, String dodoSourceId, int operateType, long integral) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/integral/edit";
-        param = "{\n" +
+        String url = "https://botopen.imdodo.com/api/v2/integral/edit";
+        String param = "{\n" +
                 "    \"islandSourceId\": \"" + islandSourceId + "\",\n" +
                 "    \"dodoSourceId\": \"" + dodoSourceId + "\"\n" +
                 "    \"operateType\": " + operateType + ",\n" +
diff --git a/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/IslandApi.java b/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/IslandApi.java
index 07ac8925..8bcd62c5 100644
--- a/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/IslandApi.java
+++ b/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/IslandApi.java
@@ -34,8 +34,8 @@ public static JSONObject getIslandInfo(String clientId, String token, String isl
      * @throws IOException 失败后抛出
      */
     public static JSONObject getIslandInfo(String authorization, String islandSourceId) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/island/info";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/island/info";
+        String param = "{" +
                 "    \"islandSourceId\": \"" + islandSourceId + "\"" +
                 "}";
         return new JSONObject(NetUtil.sendRequest(param, url, authorization));
@@ -61,8 +61,8 @@ public static JSONObject getIslandList(String clientId, String token) throws IOE
      * @throws IOException 失败后抛出
      */
     public static JSONObject getIslandList(String authorization) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/island/list";
-        param = "{}";
+        String url = "https://botopen.imdodo.com/api/v2/island/list";
+        String param = "{}";
         return new JSONObject(NetUtil.sendRequest(param, url, authorization));
     }
 
@@ -92,8 +92,8 @@ public static JSONObject getIslandLevelRankList(String clientId, String token, S
      * @throws IOException 失败后抛出
      */
     public static JSONObject getIslandLevelRankList(String authorization, String islandSourceId, int pageSize, long maxId) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/island/info";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/island/info";
+        String param = "{" +
                 "    \"islandSourceId\": \"" + islandSourceId + "\"," +
                 "    \"pageSize\": \"" + pageSize + "\"," +
                 "    \"maxId\": \"" + maxId + "\"" +
@@ -123,8 +123,8 @@ public static JSONObject getIslandMuteList(String clientId, String token, String
      * @throws IOException 失败后抛出
      */
     public static JSONObject getIslandMuteList(String authorization, String islandSourceId) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/island/mute/list";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/island/mute/list";
+        String param = "{" +
                 "    \"islandSourceId\": \"" + islandSourceId + "\"" +
                 "}";
         return new JSONObject(NetUtil.sendRequest(param, url, authorization));
@@ -152,8 +152,8 @@ public static JSONObject getIslandBanList(String clientId, String token, String
      * @throws IOException 失败后抛出
      */
     public static JSONObject getIslandBanList(String authorization, String islandSourceId) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/island/ban/list";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/island/ban/list";
+        String param = "{" +
                 "    \"islandSourceId\": \"" + islandSourceId + "\"" +
                 "}";
         return new JSONObject(NetUtil.sendRequest(param, url, authorization));
diff --git a/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/MemberApi.java b/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/MemberApi.java
index 4fd27047..5df6ce2e 100644
--- a/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/MemberApi.java
+++ b/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/MemberApi.java
@@ -10,8 +10,6 @@
  * 成员API
  */
 public class MemberApi {
-    public static String url, param;
-
     /**
      * 获取成员列表
      *
@@ -38,8 +36,8 @@ public static JSONObject getMemberList(String clientId, String token, String isl
      * @throws IOException 失败后抛出
      */
     public static JSONObject getMemberList(String authorization, String islandSourceId, int pageSize, long maxId) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/member/list";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/member/list";
+        String param = "{" +
                 "    \"islandSourceId\": \"" + islandSourceId + "\"," +
                 "    \"pageSize\": \"" + pageSize + "\"," +
                 "    \"maxId\": \"" + maxId + "\"" +
@@ -71,8 +69,8 @@ public static JSONObject getMemberInfo(String clientId, String token, String isl
      * @throws IOException 失败后抛出
      */
     public static JSONObject getMemberInfo(String authorization, String islandSourceId, String dodoSourceId) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/member/info";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/member/info";
+        String param = "{" +
                 "    \"islandSourceId\": \"" + islandSourceId + "\"," +
                 "    \"dodoSourceId\": \"" + dodoSourceId + "\"" +
                 "}";
@@ -103,8 +101,8 @@ public static JSONObject getMemberRoleList(String clientId, String token, String
      * @throws IOException 失败后抛出
      */
     public static JSONObject getMemberRoleList(String authorization, String islandSourceId, String dodoSourceId) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/member/role/list";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/member/role/list";
+        String param = "{" +
                 "    \"islandSourceId\": \"" + islandSourceId + "\"," +
                 "    \"dodoSourceId\": \"" + dodoSourceId + "\"" +
                 "}";
@@ -135,8 +133,8 @@ public static JSONObject getMemberInvitationInfo(String clientId, String token,
      * @throws IOException 失败后抛出
      */
     public static JSONObject getMemberInvitationInfo(String authorization, String islandSourceId, String dodoSourceId) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/member/role/list";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/member/role/list";
+        String param = "{" +
                 "    \"islandSourceId\": \"" + islandSourceId + "\"," +
                 "    \"dodoSourceId\": \"" + dodoSourceId + "\"" +
                 "}";
@@ -169,8 +167,8 @@ public static JSONObject editMemberNickName(String clientId, String token, Strin
      * @throws IOException 失败后抛出
      */
     public static JSONObject editMemberNickName(String authorization, String islandSourceId, String dodoSourceId, String nickName) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/member/nick/set";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/member/nick/set";
+        String param = "{" +
                 "    \"islandSourceId\": \"" + islandSourceId + "\"," +
                 "    \"dodoSourceId\": \"" + dodoSourceId + "\"," +
                 "    \"nickName\": \"" + nickName + "\"" +
@@ -204,8 +202,8 @@ public static JSONObject addMemberMute(String clientId, String token, String isl
      * @throws IOException 失败后抛出
      */
     public static JSONObject addMemberMute(String authorization, String islandSourceId, String dodoSourceId, int duration) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/member/ban/set";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/member/ban/set";
+        String param = "{" +
                 "    \"islandSourceId\": \"" + islandSourceId + "\"," +
                 "    \"dodoSourceId\": \"" + dodoSourceId + "\"," +
                 "    \"duration\": " + duration + "" +
@@ -241,8 +239,8 @@ public static JSONObject addMemberReasonrMute(String clientId, String token, Str
      * @throws IOException 失败后抛出
      */
     public static JSONObject addMemberReasonrMute(String authorization, String islandSourceId, String dodoSourceId, int duration, String reason) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/member/ban/set";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/member/ban/set";
+        String param = "{" +
                 "    \"islandSourceId\": \"" + islandSourceId + "\"," +
                 "    \"dodoSourceId\": \"" + dodoSourceId + "\"," +
                 "    \"duration\": " + duration + "," +
@@ -275,8 +273,8 @@ public static JSONObject removeMemberMute(String clientId, String token, String
      * @throws IOException 失败后抛出
      */
     public static JSONObject removeMemberMute(String authorization, String islandSourceId, String dodoSourceId) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/member/mute/remove";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/member/mute/remove";
+        String param = "{" +
                 "    \"islandSourceId\": \"" + islandSourceId + "\"," +
                 "    \"dodoSourceId\": \"" + dodoSourceId + "\"" +
                 "}";
@@ -307,8 +305,8 @@ public static JSONObject addMemberBan(String clientId, String token, String isla
      * @throws IOException 失败后抛出
      */
     public static JSONObject addMemberBan(String authorization, String islandSourceId, String dodoSourceId) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/member/ban/add";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/member/ban/add";
+        String param = "{" +
                 "    \"islandSourceId\": \"" + islandSourceId + "\"," +
                 "    \"dodoSourceId\": \"" + dodoSourceId + "\"" +
                 "}";
@@ -341,8 +339,8 @@ public static JSONObject addMemberReasonBan(String clientId, String token, Strin
      * @throws IOException 失败后抛出
      */
     public static JSONObject addMemberReasonBan(String authorization, String islandSourceId, String dodoSourceId, String reason) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/member/ban/add";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/member/ban/add";
+        String param = "{" +
                 "    \"islandSourceId\": \"" + islandSourceId + "\"," +
                 "    \"dodoSourceId\": \"" + dodoSourceId + "\"," +
                 "    \"reason\": \"" + reason + "\"" +
@@ -376,8 +374,8 @@ public static JSONObject addMemberChannelBan(String clientId, String token, Stri
      * @throws IOException 失败后抛出
      */
     public static JSONObject addMemberChannelBan(String authorization, String islandSourceId, String dodoSourceId, String noticeChannelId) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/member/ban/add";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/member/ban/add";
+        String param = "{" +
                 "    \"islandSourceId\": \"" + islandSourceId + "\"," +
                 "    \"dodoSourceId\": \"" + dodoSourceId + "\"," +
                 "    \"noticeChannelId\": \"" + noticeChannelId + "\"" +
@@ -413,8 +411,8 @@ public static JSONObject addMemberBan(String clientId, String token, String isla
      * @throws IOException 失败后抛出
      */
     public static JSONObject addMemberBan(String authorization, String islandSourceId, String dodoSourceId, String noticeChannelId, String reason) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/member/ban/add";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/member/ban/add";
+        String param = "{" +
                 "    \"islandSourceId\": \"" + islandSourceId + "\"," +
                 "    \"dodoSourceId\": \"" + dodoSourceId + "\"," +
                 "    \"noticeChannelId\": \"" + noticeChannelId + "\"," +
@@ -447,8 +445,8 @@ public static JSONObject removeMemberBan(String clientId, String token, String i
      * @throws IOException 失败后抛出
      */
     public static JSONObject removeMemberBan(String authorization, String islandSourceId, String dodoSourceId) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/member/ban/remove";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/member/ban/remove";
+        String param = "{" +
                 "    \"islandSourceId\": \"" + islandSourceId + "\"," +
                 "    \"dodoSourceId\": \"" + dodoSourceId + "\"" +
                 "}";
diff --git a/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/NTFApi.java b/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/NTFApi.java
index f192100b..e3e6b34b 100644
--- a/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/NTFApi.java
+++ b/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/NTFApi.java
@@ -39,8 +39,8 @@ public static JSONObject getMemberNftStatus(String clientId, String token, Strin
      * @throws IOException 失败后抛出
      */
     public static JSONObject getMemberNftStatus(String authorization, String islandSourceId, String dodoSourceId, String platform) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/member/nft/status";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/member/nft/status";
+        String param = "{" +
                 "    \"islandSourceId\": \"" + islandSourceId + "\"," +
                 "    \"dodoSourceId\": \"" + dodoSourceId + "\"," +
                 "    \"platform\": \"" + platform + "\"" +
@@ -72,8 +72,8 @@ public static JSONObject getMemberNftStatus(String clientId, String token, Strin
      * @param platform       数藏平台
      */
     public static JSONObject getMemberNftStatus(String authorization, String islandSourceId, String dodoSourceId, String platform, String issuer, String series) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/member/nft/status";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/member/nft/status";
+        String param = "{" +
                 "    \"islandSourceId\": \"" + islandSourceId + "\"," +
                 "    \"dodoSourceId\": \"" + dodoSourceId + "\"," +
                 "    \"platform\": \"" + platform + "\"," +
diff --git a/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/PersonalApi.java b/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/PersonalApi.java
index 3efff57b..c29539ab 100644
--- a/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/PersonalApi.java
+++ b/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/PersonalApi.java
@@ -10,8 +10,6 @@
  * 私信API
  */
 public class PersonalApi {
-    public static String URL, param;
-
     /**
      * 发送文本消息
      *
@@ -36,8 +34,8 @@ public static JSONObject sendPersonalMessage(String clientId, String token, Stri
      * @throws IOException 失败后抛出
      */
     public static JSONObject sendPersonalMessage(String authorization, String islandSourceId, String dodoSourceId, String message) throws IOException {
-        URL = "https://botopen.imdodo.com/api/v2/personal/message/send";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/personal/message/send";
+        String param = "{" +
                 "    \"dodoSourceId\": \"" + dodoSourceId + "\"," +
                 "    \"islandSourceId\": \"" + islandSourceId + "\"," +
                 "    \"messageType\": 1," +
@@ -45,7 +43,7 @@ public static JSONObject sendPersonalMessage(String authorization, String island
                 "        \"content\": \"" + message + "\"" +
                 "    }" +
                 "}";
-        return new JSONObject(NetUtil.sendRequest(param, URL, authorization));
+        return new JSONObject(NetUtil.sendRequest(param, url, authorization));
     }
 
     /**
@@ -70,33 +68,33 @@ public static JSONObject sendDodoPictureMessage(String clientId, String token, S
      *
      * @param authorization authorization
      * @param dodoSourceId  dodo号
-     * @param url           图片url地址
+     * @param u             图片url地址
      * @param height        图片高度
      * @param width         图片宽度
      * @param isOriginal    是否原图
      * @return JSON对象
      * @throws IOException 失败后抛出
      */
-    public static JSONObject sendDodoPictureMessage(String authorization, String islandSourceId, String dodoSourceId, String url, int width, int height, Boolean isOriginal) throws IOException {
-        URL = "https://botopen.imdodo.com/api/v2/personal/message/send";
+    public static JSONObject sendDodoPictureMessage(String authorization, String islandSourceId, String dodoSourceId, String u, int width, int height, Boolean isOriginal) throws IOException {
+        String url = "https://botopen.imdodo.com/api/v2/personal/message/send";
         int original;
         if (isOriginal) {
             original = 1;
         } else {
             original = 0;
         }
-        param = "{" +
+        String param = "{" +
                 "    \"dodoSourceId\": \"" + dodoSourceId + "\"," +
                 "    \"islandSourceId\": \"" + islandSourceId + "\"," +
                 "    \"messageType\": 2," +
                 "    \"messageBody\": {" +
-                "        \"url\": \"" + url + "\"," +
+                "        \"url\": \"" + u + "\"," +
                 "        \"width\": " + width + "," +
                 "        \"height\": " + height + "," +
                 "        \"isOriginal\": " + original + "" +
                 "    }" +
                 "}";
-        return new JSONObject(NetUtil.sendRequest(param, URL, authorization));
+        return new JSONObject(NetUtil.sendRequest(param, url, authorization));
     }
 
     /**
@@ -120,25 +118,25 @@ public static JSONObject sendDodoPictureMessage(String clientId, String token, S
      *
      * @param authorization authorization
      * @param dodoSourceId  dodo号
-     * @param url           图片url地址
+     * @param u             图片url地址
      * @param height        图片高度
      * @param width         图片宽度
      * @return JSON对象
      * @throws IOException 失败后抛出
      */
-    public static JSONObject sendDodoPictureMessage(String authorization, String islandSourceId, String dodoSourceId, String url, int width, int height) throws IOException {
-        URL = "https://botopen.imdodo.com/api/v2/personal/message/send";
-        param = "{" +
+    public static JSONObject sendDodoPictureMessage(String authorization, String islandSourceId, String dodoSourceId, String u, int width, int height) throws IOException {
+        String url = "https://botopen.imdodo.com/api/v2/personal/message/send";
+        String param = "{" +
                 "    \"dodoSourceId\": \"" + dodoSourceId + "\"," +
                 "    \"islandSourceId\": \"" + islandSourceId + "\"," +
                 "    \"messageType\": 2," +
                 "    \"messageBody\": {" +
-                "        \"url\": \"" + url + "\"," +
+                "        \"url\": \"" + u + "\"," +
                 "        \"width\": " + width + "," +
                 "        \"height\": " + height + "" +
                 "    }" +
                 "}";
-        return new JSONObject(NetUtil.sendRequest(param, URL, authorization));
+        return new JSONObject(NetUtil.sendRequest(param, url, authorization));
     }
 
     /**
@@ -160,21 +158,21 @@ public static JSONObject sendDodoVideoMessage(String clientId, String token, Str
      *
      * @param authorization authorization
      * @param dodoSourceId  dodo号
-     * @param url           视频url地址
+     * @param u             视频url地址
      * @return JSON对象
      * @throws IOException 失败后抛出
      */
-    public static JSONObject sendDodoVideoMessage(String authorization, String islandSourceId, String dodoSourceId, String url) throws IOException {
-        URL = "https://botopen.imdodo.com/api/v2/personal/message/send";
-        param = "{" +
+    public static JSONObject sendDodoVideoMessage(String authorization, String islandSourceId, String dodoSourceId, String u) throws IOException {
+        String url = "https://botopen.imdodo.com/api/v2/personal/message/send";
+        String param = "{" +
                 "    \"dodoSourceId\": \"" + dodoSourceId + "\"," +
                 "    \"islandSourceId\": \"" + islandSourceId + "\"," +
                 "    \"messageType\": 3," +
                 "    \"messageBody\": {" +
-                "        \"url\": \"" + url + "\"" +
+                "        \"url\": \"" + u + "\"" +
                 "    }" +
                 "}";
-        return new JSONObject(NetUtil.sendRequest(param, URL, authorization));
+        return new JSONObject(NetUtil.sendRequest(param, url, authorization));
     }
 
     /**
@@ -199,26 +197,26 @@ public static JSONObject sendDodoVideoMessage(String clientId, String token, Str
      *
      * @param authorization authorization
      * @param dodoSourceId  dodo号
-     * @param url           视频url地址
+     * @param u             视频url地址
      * @param coverurl      封面url地址
      * @param duration      视频长度
      * @param size          视频大小
      * @return JSON对象
      * @throws IOException 失败后抛出
      */
-    public static JSONObject sendDodoVideoMessage(String authorization, String islandSourceId, String dodoSourceId, String url, String coverurl, long duration, long size) throws IOException {
-        URL = "https://botopen.imdodo.com/api/v2/personal/message/send";
-        param = "{" +
+    public static JSONObject sendDodoVideoMessage(String authorization, String islandSourceId, String dodoSourceId, String u, String coverurl, long duration, long size) throws IOException {
+        String url = "https://botopen.imdodo.com/api/v2/personal/message/send";
+        String param = "{" +
                 "    \"dodoSourceId\": \"" + dodoSourceId + "\"," +
                 "    \"islandSourceId\": \"" + islandSourceId + "\"," +
                 "    \"messageType\": 3," +
                 "    \"messageBody\": {" +
-                "        \"url\": \"" + url + "\"," +
+                "        \"url\": \"" + u + "\"," +
                 "        \"coverurl\": \"" + coverurl + "\"," +
                 "        \"duration\": " + duration + "," +
                 "        \"size\": " + size + "" +
                 "    }" +
                 "}";
-        return new JSONObject(NetUtil.sendRequest(param, URL, authorization));
+        return new JSONObject(NetUtil.sendRequest(param, url, authorization));
     }
 }
diff --git a/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/ResourceApi.java b/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/ResourceApi.java
index d84877a4..cd094608 100644
--- a/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/ResourceApi.java
+++ b/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/ResourceApi.java
@@ -10,8 +10,6 @@
  * 资源API
  */
 public class ResourceApi {
-    public static String url;
-
     /**
      * 上传资源
      *
@@ -34,7 +32,7 @@ public static JSONObject uploadResource(String clientId, String token, String pa
      * @throws IOException 失败后抛出
      */
     public static JSONObject uploadResource(String authorization, String path) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/resource/picture/upload";
+        String url = "https://botopen.imdodo.com/api/v2/resource/picture/upload";
         return new JSONObject(NetUtil.uploadFile(authorization, path, url));
     }
 }
diff --git a/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/RoleApi.java b/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/RoleApi.java
index 73b45807..5d5b24c1 100644
--- a/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/RoleApi.java
+++ b/core/src/main/java/io/github/minecraftchampions/dodoopenjava/api/v2/RoleApi.java
@@ -10,8 +10,6 @@
  * 身份组API
  */
 public class RoleApi {
-    public static String url, param;
-
     /**
      * 获取身份组列表
      *
@@ -34,8 +32,8 @@ public static JSONObject getRoleList(String clientId, String token, String islan
      * @throws IOException 失败后抛出
      */
     public static JSONObject getRoleList(String authorization, String islandSourceId) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/role/list";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/role/list";
+        String param = "{" +
                 "    \"islandSourceId\": \"" + islandSourceId + "\"" +
                 "}";
         return new JSONObject(NetUtil.sendRequest(param, url, authorization));
@@ -67,8 +65,8 @@ public static JSONObject addRoleMember(String clientId, String token, String isl
      * @throws IOException 失败后抛出
      */
     public static JSONObject addRoleMember(String authorization, String islandSourceId, String dodoSourceId, String roleId) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/role/member/add";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/role/member/add";
+        String param = "{" +
                 "    \"islandSourceId\": \"" + islandSourceId + "\"," +
                 "    \"dodoSourceId\": \"" + dodoSourceId + "\"," +
                 "    \"roleId\": \"" + roleId + "\"" +
@@ -102,8 +100,8 @@ public static JSONObject removeRoleMember(String clientId, String token, String
      * @throws IOException 失败后抛出
      */
     public static JSONObject removeRoleMember(String authorization, String islandSourceId, String dodoSourceId, String roleId) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/role/member/remove";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/role/member/remove";
+        String param = "{" +
                 "    \"islandSourceId\": \"" + islandSourceId + "\"," +
                 "    \"dodoSourceId\": \"" + dodoSourceId + "\"," +
                 "    \"roleId\": \"" + roleId + "\"" +
@@ -141,7 +139,7 @@ public static JSONObject addRole(String clientId, String token, String islandSou
      * @throws IOException 失败后抛出
      */
     public static JSONObject addRole(String authorization, String islandSourceId, String roleName, String roleColor, int position, String permission) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/role/add";
+        String url = "https://botopen.imdodo.com/api/v2/role/add";
         JSONObject param = new JSONObject("{" +
                 "  \"islandSourceId\": \"" + islandSourceId + "\"}");
         if (roleName != null) {
@@ -195,7 +193,7 @@ public static JSONObject editRole(String clientId, String token, String islandSo
      * @throws IOException 失败后抛出
      */
     public static JSONObject editRole(String authorization, String islandSourceId, String roleId, String roleName, String roleColor, int position, String permission) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/role/edit";
+        String url = "https://botopen.imdodo.com/api/v2/role/edit";
         JSONObject param = new JSONObject("{" +
                 "  \"islandSourceId\": \"" + islandSourceId + "\"," +
                 "  \"roleId\": \"" + roleId + "\"}");
@@ -241,8 +239,8 @@ public static JSONObject deleteRole(String clientId, String token, String island
      * @throws IOException 失败后抛出
      */
     public static JSONObject deleteRole(String authorization, String islandSourceId, String roleId) throws IOException {
-        url = "https://botopen.imdodo.com/api/v2/role/remove";
-        param = "{" +
+        String url = "https://botopen.imdodo.com/api/v2/role/remove";
+        String param = "{" +
                 "    \"islandSourceId\": \"" + islandSourceId + "\"," +
                 "    \"roleId\": \"" + roleId + "\"" +
                 "}";
diff --git a/pom.xml b/pom.xml
index 0e7669cf..9090aeaf 100644
--- a/pom.xml
+++ b/pom.xml
@@ -9,7 +9,7 @@
         <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
         <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
         <maven.compiler.encoding>UTF-8</maven.compiler.encoding>
-        <revision>2.5.1</revision>
+        <revision>2.5.2</revision>
     </properties>
 
     <groupId>io.github.minecraftchampions.dodoopenjava</groupId>