fix:添加备注

springcloud-service-feign/src/main/java/com/kwan/springcloud/api/ComputeClientHystrix.java

@@ -5,6 +5,13 @@ import org.springframework.stereotype.Component;
 
 import java.io.Serializable;
 
+/**
+ * feign的降级
+ *
+ * @author : qinyingjie
+ * @version : 2.2.0
+ * @date : 2023/1/14 16:47
+ */
 @Component
 public class ComputeClientHystrix implements ComputeClient {
     @Override

springcloud-service-goods-9100/src/main/resources/application.yaml

@@ -29,7 +29,7 @@ management:
     web:
       base-path: /actuator  #修改访问路径  2.0之前默认是/   2.0默认是 /actuator  可以通过这个属性值修改
       exposure:
-        include: *
+        include: "*"
   health:
     show-details: always  #显示健康具体信息  默认不会显示详细信息
 

springcloud-service-goods-9200/src/main/resources/application.yaml

@@ -28,8 +28,8 @@ management:
   endpoints:
     web:
       base-path: /actuator  #修改访问路径  2.0之前默认是/   2.0默认是 /actuator  可以通过这个属性值修改
-  health:
-    show-details: always  #显示健康具体信息  默认不会显示详细信息
+      exposure:
+        include: "*"
 
 #mybatis-plus配置
 mybatis-plus:

springcloud-service-goods-9300/src/main/resources/application.yaml

@@ -28,8 +28,8 @@ management:
   endpoints:
     web:
       base-path: /actuator  #修改访问路径  2.0之前默认是/   2.0默认是 /actuator  可以通过这个属性值修改
-  health:
-    show-details: always  #显示健康具体信息  默认不会显示详细信息
+      exposure:
+        include: "*"
 
 #mybatis-plus配置
 mybatis-plus:

springcloud-service-portal/src/main/java/com/kwan/springcloud/controller/PortalController.java

@@ -35,6 +35,16 @@ public class PortalController {
         return portalService.hystrix(id);
     }
 
+
+
+    @GetMapping(value = "/limit/{id}", produces = MediaType.APPLICATION_PROBLEM_JSON_VALUE)
+    public Result limit(@PathVariable String id) {
+        return portalService.limit(id);
+    }
+
+
+
+
     /**
      * 通过主键查询单条数据
      *

springcloud-service-portal/src/main/java/com/kwan/springcloud/service/PortalService.java

@@ -2,6 +2,7 @@ package com.kwan.springcloud.service;
 
 import com.kwan.springcloud.response.Result;
 import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
+import com.netflix.hystrix.contrib.javanica.annotation.HystrixProperty;
 import lombok.extern.slf4j.Slf4j;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.stereotype.Service;
@@ -26,26 +27,46 @@ public class PortalService {
         //调用远程的controller
         return restTemplate.getForEntity(GOODS_URL_2 + id, Result.class).getBody();
     }
-    @HystrixCommand(fallbackMethod = "addServiceFallback")
-    public Result hystrix(String id) {
 
+    @HystrixCommand(
+            fallbackMethod = "addServiceFallback",
+            commandProperties = {
+                    @HystrixProperty(name = "execution.timeout.enabled", value = "true"),
+                    @HystrixProperty(name = "execution.isolation.thread.timeoutInMilliseconds", value = "6000")}
+    )
+    public Result hystrix(String id) {
         //1·服务超时，会降级
-        try {
-            Thread.sleep(2000);
-        } catch (InterruptedException e) {
-            e.printStackTrace();
-        }
-        //2.服务异常,会降级
-        String str = null;
-        if (str == null) {
-            throw new RuntimeException("服务异常了.");
-        }
+//        try {
+//            Thread.sleep(6000);
+//        } catch (InterruptedException e) {
+//            e.printStackTrace();
+//        }
+//        //2.服务异常,会降级
+//        String str = null;
+//        if (str == null) {
+//            throw new RuntimeException("服务异常了.");
+//        }
         return restTemplate.getForEntity(GOODS_URL_2 + id, Result.class).getBody();
     }
 
+
     public Result addServiceFallback(String id) {
         log.info("失败id={}", id);
 //        return Result.error("请求超时  服务不可用 请求失败");
         return Result.error("请求异常  服务不可用 请求失败");
     }
+
+    @HystrixCommand(
+            fallbackMethod = "addServiceFallback",
+            threadPoolKey = "goods",
+            threadPoolProperties = {
+                    @HystrixProperty(name = "coreSize", value = "2"),
+                    @HystrixProperty(name = "maxQueueSize", value = "1"),
+                    @HystrixProperty(name = "keepAliveTimeMinutes", value = "2"),
+                    @HystrixProperty(name = "queueSizeRejectionThreshold", value = "100")
+            }
+    )
+    public Result limit(String id) {
+        return restTemplate.getForEntity(GOODS_URL_2 + id, Result.class).getBody();
+    }
 }

springcloud-service-portal/src/main/resources/application.yaml

@@ -12,14 +12,23 @@ eureka:
     service-url:
       defaultZone: http://eureka8767:8767/eureka/,http://eureka8768:8768/eureka/,http://eureka8769:8769/eureka/
 
+#开启feign开始hystrix的支持
+feign:
+  hystrix:
+    enabled: true
 
-
-feign.hystrix.enabled=true
-      hystrix.command.default.execution.timeout.enabled=true
-      hystrix.command.default.execution.isolation.thread.timeoutInMi
-      1liseconds=5000
-      如果hystrix.command.default.execution.timeout.enabled为true,则会有两
-      个执行方法超时的配置，一个就是ribbon的ReadTimeout,一个就是熔断器
-      I
-      hystrix的timeoutInMilliseconds,此时谁的值小谁生效；
-      如果hystrix.command.default.execution.timeout.enabled为false,则熔断
\ No newline at end of file
+hystrix:
+  command:
+    default:
+      execution:
+        isolation:
+          thread:
+            timeoutInMilliseconds: 5000 #hystrix超时时间
+        timeout:
+          enabled: true   #开启hystrix超时管理
+ribbon:
+  ReadTimeout: 2000   #请求超时时间
+  http:
+    client:
+      enabled: true  #开启ribbon超时管理
+  ConnectTimeout: 2000    #连接超时时间
\ No newline at end of file