고급편/섹션12: 예제 만들기 (#21)

섹션12: 스프링 AOP - 실전 예제: 5번 중 1번은 실패하는 상황 세팅

스프링 로드맵5 고급편/aop/src/main/java/hello/aop/exam/ExamRepository.java

@@ -0,0 +1,21 @@
+package hello.aop.exam;
+
+import org.springframework.stereotype.Repository;
+
+@Repository
+public class ExamRepository {
+
+    private static int seq = 0;
+
+    /**
+     * 5번에 1번 실패하는 요청
+     * 실패할 때 AOP로 복구하도록 설정
+     */
+    public String save(String itemId) {
+        seq++;
+        if (seq % 5 == 0) {
+            throw new IllegalStateException("예외 발생");
+        }
+        return "ok";
+    }
+}

스프링 로드맵5 고급편/aop/src/main/java/hello/aop/exam/ExamService.java

@@ -0,0 +1,15 @@
+package hello.aop.exam;
+
+import lombok.RequiredArgsConstructor;
+import org.springframework.stereotype.Service;
+
+@Service
+@RequiredArgsConstructor
+public class ExamService {
+
+    private final ExamRepository examRepository;
+
+    public void request(String itemId) {
+        examRepository.save(itemId);
+    }
+}

스프링 로드맵5 고급편/aop/src/test/java/hello/aop/exam/ExamTest.java

@@ -0,0 +1,22 @@
+package hello.aop.exam;
+
+import lombok.extern.slf4j.Slf4j;
+import org.junit.jupiter.api.Test;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.boot.test.context.SpringBootTest;
+
+@Slf4j
+@SpringBootTest
+public class ExamTest {
+
+    @Autowired
+    ExamService examService;
+
+    @Test
+    void test() {
+        for (int i = 0; i < 5; i++) {
+            log.info("client request i={}", i);
+            examService.request("data" + i);
+        }
+    }
+}