提交 使用aop解决登录接口幂等性问题

pom.xml

@@ -68,6 +68,10 @@
             <artifactId>mybatis-spring-boot-starter</artifactId>
             <version>2.3.1</version>
         </dependency>
+        <dependency>
+            <groupId>org.springframework.boot</groupId>
+            <artifactId>spring-boot-starter-aop</artifactId>
+        </dependency>
     </dependencies>
 
 

src/main/java/com/durant/annotion/Independent.java

@@ -0,0 +1,19 @@
+package com.durant.annotion;
+
+import java.lang.annotation.ElementType;
+import java.lang.annotation.Retention;
+import java.lang.annotation.RetentionPolicy;
+import java.lang.annotation.Target;
+
+/**
+ * @author 冯凯
+ * @version 1.0
+ * @description: TODO
+ * @date 2023/10/3 22:02
+ */
+@Target(ElementType.METHOD)
+@Retention(RetentionPolicy.RUNTIME)
+public @interface Independent {
+
+
+}

src/main/java/com/durant/aspect/IndependentAspect.java

@@ -0,0 +1,45 @@
+package com.durant.aspect;
+
+import com.durant.annotion.Independent;
+import org.aspectj.lang.ProceedingJoinPoint;
+import org.aspectj.lang.annotation.Around;
+import org.aspectj.lang.annotation.Aspect;
+import org.springframework.stereotype.Component;
+
+import java.util.Map;
+import java.util.concurrent.ConcurrentHashMap;
+
+/**
+ * @author 冯凯
+ * @version 1.0
+ * @description: TODO
+ * @date 2023/10/3 22:05
+ */
+@Aspect
+@Component
+public class IndependentAspect {
+    private Object result=null;
+    private Map<String,Object> resultMap=new ConcurrentHashMap<>();
+
+    @Around("@annotation(independent)")
+    public Object independent(ProceedingJoinPoint joinPoint, Independent independent) throws Throwable {
+
+        String id = generateId(joinPoint.getArgs());
+        if (resultMap.containsKey(id)){
+            System.out.println("不要重复提交请求");
+            return resultMap.get(id);
+        }
+
+         result= joinPoint.proceed();
+        resultMap.put(id,result);
+        return result;
+    }
+
+    private String generateId(Object[] args){
+        StringBuilder stringBuilder = new StringBuilder();
+        for (Object arg : args) {
+            stringBuilder.append(arg.hashCode());
+        }
+        return stringBuilder.toString();
+    }
+}

src/main/java/com/durant/controller/LoginController.java

@@ -1,13 +1,11 @@
 package com.durant.controller;
 
 import com.durant.Result;
+import com.durant.annotion.Independent;
 import com.durant.dto.request.LoginReq;
 import com.durant.service.LoginService;
 import org.springframework.beans.factory.annotation.Autowired;
-import org.springframework.web.bind.annotation.GetMapping;
+import org.springframework.web.bind.annotation.*;
-import org.springframework.web.bind.annotation.PostMapping;
-import org.springframework.web.bind.annotation.RequestBody;
-import org.springframework.web.bind.annotation.RestController;
 
 /**
  * @author 冯凯
@@ -16,16 +14,18 @@ import org.springframework.web.bind.annotation.RestController;
  * @date 2023/10/3 14:08
  */
 @RestController
+@CrossOrigin(origins = "http://localhost:9528")
 public class LoginController {
     @Autowired
     private LoginService loginService;
 
+    @Independent
     @PostMapping("/user/login")
 
     public Result<LoginReq> userLogin(@RequestBody LoginReq loginReq){
         Result<LoginReq> loginReqResult = loginService.userLogin(loginReq);
-        if (loginReqResult!=null){
+        if (loginReqResult.getData()!=null){
-            return Result.success(loginReq);
+            return Result.success(loginReqResult.getData());
         }
 
         return Result.error();