fix:自定义异常

nacos-server-common/src/main/java/com/kwan/springcloudalibaba/util/FileContains.java

@@ -5,7 +5,6 @@ import cn.hutool.core.date.StopWatch;
 import com.alibaba.fastjson2.JSON;
 import com.google.common.base.Charsets;
 import com.google.common.io.Files;
-import lombok.extern.slf4j.Slf4j;
 
 import java.io.File;
 import java.io.IOException;
@@ -19,7 +18,6 @@ import java.util.List;
  * @version : 2.2.0
  * @date : 2023/2/8 10:45
  */
-@Slf4j
 public class FileContains {
 
     /**

nacos-server-consumer/src/main/resources/bootstrap.yml

@@ -2,19 +2,6 @@
 server:
   port: 8085
 
-#端点打开
-management:
-  endpoint:
-    health:
-      show-details: always
-  endpoints:
-    jmx:
-      exposure:
-        include: '*'
-    web:
-      exposure:
-        include: '*'
-
 #spring配置
 spring:
   application:

nacos-server-sentinel-consumer/pom.xml

@@ -78,6 +78,12 @@
             <artifactId>spring-cloud-starter-netflix-ribbon</artifactId>
             <version>2.0.0.RELEASE</version>
         </dependency>
+        <dependency>
+            <groupId>com.alibaba.csp</groupId>
+            <artifactId>sentinel-spring-webmvc-adapter</artifactId>
+            <version>1.8.2</version>
+        </dependency>
+
 
     </dependencies>
 

nacos-server-sentinel-consumer/src/main/java/com/kwan/springcloudalibaba/constant/RespConstant.java

+package com.kwan.springcloudalibaba.constant;
+
+public class RespConstant {
+    public static final Integer RESP_CODE_FLOW_LIMITING_EXCEPTION = 441;
+    public static final String RESP_MSG_FLOW_LIMITING_EXCEPTION = "流量控制";
+}

nacos-server-sentinel-consumer/src/main/java/com/kwan/springcloudalibaba/controller/SentinelController.java

@@ -2,6 +2,7 @@ package com.kwan.springcloudalibaba.controller;
 
 import com.alibaba.csp.sentinel.annotation.SentinelResource;
 import com.alibaba.csp.sentinel.slots.block.BlockException;
+import com.kwan.springcloudalibaba.api.FeignUserService;
 import com.kwan.springcloudalibaba.common.Result;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.http.MediaType;
@@ -43,12 +44,14 @@ public class SentinelController {
      * 获取配置的变量
      * http://localhost:8086/sentinel/nameInfo
      */
+//    @SentinelResource(value = "SentinelExceptionHandler",
+//            blockHandlerClass = SentinelExceptionHandler.class,
+//            blockHandler = "handleRRException")
     @GetMapping(value = "/nameInfo", produces = MediaType.APPLICATION_PROBLEM_JSON_VALUE)
     public Result nameInfo() {
         return Result.ok();
     }
 
-
     /**
      * http://localhost:8086/sentinel/world
      *

nacos-server-sentinel-consumer/src/main/java/com/kwan/springcloudalibaba/handler/UrlBlockHandler.java

+package com.kwan.springcloudalibaba.handler;
+
+import com.alibaba.csp.sentinel.adapter.spring.webmvc.callback.BlockExceptionHandler;
+import com.alibaba.csp.sentinel.slots.block.BlockException;
+import com.alibaba.csp.sentinel.slots.block.authority.AuthorityException;
+import com.alibaba.csp.sentinel.slots.block.degrade.DegradeException;
+import com.alibaba.csp.sentinel.slots.block.flow.FlowException;
+import com.alibaba.csp.sentinel.slots.block.flow.param.ParamFlowException;
+import com.alibaba.csp.sentinel.slots.system.SystemBlockException;
+import com.fasterxml.jackson.annotation.JsonInclude;
+import com.fasterxml.jackson.databind.ObjectMapper;
+import com.kwan.springcloudalibaba.common.Result;
+import org.springframework.stereotype.Component;
+
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+
+@Component
+public class UrlBlockHandler implements BlockExceptionHandler {
+
+    @Override
+    public void handle(HttpServletRequest httpServletRequest, HttpServletResponse httpServletResponse, BlockException e) throws Exception {
+        String msg = null;
+        if (e instanceof FlowException) {//限流异常
+            msg = "接口已被限流";
+        } else if (e instanceof DegradeException) {//熔断异常
+            msg = "接口已被熔断,请稍后再试";
+        } else if (e instanceof ParamFlowException) { //热点参数限流
+            msg = "热点参数限流";
+        } else if (e instanceof SystemBlockException) { //系统规则异常
+            msg = "系统规则(负载不满足要求)";
+        } else if (e instanceof AuthorityException) { //授权规则异常
+            msg = "授权规则不通过";
+        }
+        httpServletResponse.setStatus(500);
+        httpServletResponse.setCharacterEncoding("UTF-8");
+        httpServletResponse.setContentType("application/json;charset=utf-8");
+        //ObjectMapper是内置Jackson的序列化工具类,这用于将对象转为JSON字符串
+        ObjectMapper mapper = new ObjectMapper();
+        //某个对象属性为null时不进行序列化输出
+        mapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
+        mapper.writeValue(httpServletResponse.getWriter(),
+                Result.error(300, msg)
+        );
+    }
+
+}
\ No newline at end of file

nacos-server-sentinel-consumer/src/main/resources/bootstrap.yml

@@ -2,18 +2,6 @@
 server:
   port: 8086
 
-#断电打开
-management:
-  endpoint:
-    health:
-      show-details: always
-  endpoints:
-    jmx:
-      exposure:
-        include: '*'
-    web:
-      exposure:
-        include: '*'
 #spring配置
 spring:
   application:
@@ -32,4 +20,6 @@ spring:
         refresh-enabled: true  #默认自动刷新
     sentinel:
       transport:
-        dashboard: 120.79.36.53:8181
\ No newline at end of file
+        dashboard: 127.0.0.1:8181
+        port: 8719  #默认端口，如果被占用则从8719依次+1扫描
+