服务调用线程隔离demo

pom.xml

@@ -36,15 +36,15 @@
             <groupId>org.springframework.cloud</groupId>
             <artifactId>spring-cloud-starter-openfeign</artifactId>
         </dependency>
-<!--        <dependency>-->
-<!--            <groupId>com.netflix.hystrix</groupId>-->
-<!--            <artifactId>hystrix-javanica</artifactId>-->
-<!--            <version>RELEASE</version>-->
-<!--        </dependency>-->
-<!--        <dependency>-->
-<!--            <groupId>org.springframework.cloud</groupId>-->
-<!--            <artifactId>spring-cloud-netflix-hystrix</artifactId>-->
-<!--        </dependency>-->
+        <dependency>
+            <groupId>com.netflix.hystrix</groupId>
+            <artifactId>hystrix-javanica</artifactId>
+            <version>RELEASE</version>
+        </dependency>
+        <dependency>
+            <groupId>org.springframework.cloud</groupId>
+            <artifactId>spring-cloud-netflix-hystrix</artifactId>
+        </dependency>
         <dependency>
             <groupId>org.springframework.boot</groupId>
             <artifactId>spring-boot-starter-test</artifactId>

src/main/java/com/yingxin/springcloudconsumer/SpringCloudConsumerApplication.java

@@ -3,12 +3,12 @@ package com.yingxin.springcloudconsumer;
 import org.springframework.boot.SpringApplication;
 import org.springframework.boot.autoconfigure.SpringBootApplication;
 import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
-import org.springframework.cloud.openfeign.EnableFeignClients;
+import org.springframework.cloud.netflix.hystrix.EnableHystrix;
 
 @SpringBootApplication
 @EnableEurekaClient
-@EnableFeignClients
-//@EnableHystrix
+//@EnableFeignClients
+@EnableHystrix
 public class SpringCloudConsumerApplication {
 
     public static void main(String[] args) {

src/main/java/com/yingxin/springcloudconsumer/controller/RestApi.java

 package com.yingxin.springcloudconsumer.controller;
 
 import com.yingxin.springcloudconsumer.entity.User;
-import com.yingxin.springcloudconsumer.service.HelloService;
+import com.yingxin.springcloudconsumer.service.HelloFastService;
+import com.yingxin.springcloudconsumer.service.HelloSlowService;
+import com.yingxin.springcloudconsumer.service.TestService;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.web.bind.annotation.GetMapping;
 import org.springframework.web.bind.annotation.RestController;
@@ -11,41 +13,35 @@ import java.util.List;
 @RestController
 public class RestApi {
 
-//    @Autowired
-//    private TestService service;
+    @Autowired
+    private TestService service;
 //
-//    @GetMapping("/test")
-//    public String test(){
-//        return service.hello1();
-//    }
+//    private final HelloFastService helloFastService;
+//    private final HelloSlowService helloSlowService;
 //
-//    @GetMapping("/test2")
-//    public String test2(){
-//        return service.hello2();
+//    public RestApi(HelloFastService helloFastService, HelloSlowService helloSlowService) {
+//        this.helloFastService = helloFastService;
+//        this.helloSlowService = helloSlowService;
 //    }
-    @Autowired
-    private HelloService helloService;
-//    @Autowired
-//    private HelloService2 helloService2;
 
     @GetMapping("/hello1")
     public String testHello1() {
-        return helloService.hello1();
+        return service.hello();
     }
 
-//    @GetMapping("/hello2")
-//    public String testHello2() {
-//        return helloService2.hello2();
-//    }
-
-    @GetMapping("user")
-    public User userConsumer() {
-        return helloService.getUser();
+    @GetMapping("/hello2")
+    public String testHello2() {
+        return service.hello2();
     }
 
-    @GetMapping("users")
-    public List<User> usersConsumer() {
-        return helloService.getUsers();
-    }
+//    @GetMapping("user")
+//    public User userConsumer() {
+//        return helloFastService.getUser();
+//    }
+//
+//    @GetMapping("users")
+//    public List<User> usersConsumer() {
+//        return helloFastService.getUsers();
+//    }
 
 }

src/main/java/com/yingxin/springcloudconsumer/service/HelloFallBack2.java

-//package com.yingxin.springcloudconsumer.service;
-//
-//import com.yingxin.springcloudconsumer.entity.User;
-//import org.springframework.stereotype.Component;
-//
-//import java.util.List;
-//
-//@Component
-//public class HelloFallBack2 implements HelloService2 {
-//
-//    @Override
-//    public String hello2() {
-//        System.out.println("hello2 线程：" + Thread.currentThread().getName());
-//        return "service2 error";
-//    }
-//
-//    @Override
-//    public User getUser() {
-//        return new User();
-//    }
-//
-//    @Override
-//    public List<User> getUsers() {
-//        return null;
-//    }
-//}

src/main/java/com/yingxin/springcloudconsumer/service/HelloFallBack.java → src/main/java/com/yingxin/springcloudconsumer/service/HelloFastFallBack.java

@@ -6,11 +6,11 @@ import org.springframework.stereotype.Component;
 import java.util.List;
 
 @Component
-public class HelloFallBack implements HelloService {
+public class HelloFastFallBack implements HelloFastService {
     @Override
-    public String hello1() {
-        System.out.println("hello1 线程：" + Thread.currentThread().getName());
-        return "service1 error";
+    public String hello() {
+        System.out.println("fast server error");
+        return "hello error";
     }
 
     @Override

src/main/java/com/yingxin/springcloudconsumer/service/HelloService.java → src/main/java/com/yingxin/springcloudconsumer/service/HelloFastService.java

@@ -6,11 +6,11 @@ import org.springframework.web.bind.annotation.GetMapping;
 
 import java.util.List;
 
-@FeignClient(name = "spring-cloud-server-HelloWorld", fallback = HelloFallBack.class)
-public interface HelloService {
+@FeignClient(name = "spring-cloud-server-HelloWorldFast", fallback = HelloFastFallBack.class)
+public interface HelloFastService {
 
-    @GetMapping("hello1")
-    String hello1();
+    @GetMapping("hello")
+    String hello();
 
     @GetMapping("exampleforget")
     User getUser();

src/main/java/com/yingxin/springcloudconsumer/service/HelloService2.java

-//package com.yingxin.springcloudconsumer.service;
-//
-//import com.yingxin.springcloudconsumer.entity.User;
-//import org.springframework.cloud.openfeign.FeignClient;
-//import org.springframework.web.bind.annotation.GetMapping;
-//
-//import java.util.List;
-//
-//@FeignClient(name = "spring-cloud-server-HelloWorld", fallback = HelloFallBack2.class)
-//public interface HelloService2 {
-//
-//    @GetMapping("hello2")
-//    String hello2();
-//
-//    @GetMapping("exampleforget")
-//    User getUser();
-//
-//    @GetMapping("queryUserList")
-//    List<User> getUsers();
-//}

src/main/java/com/yingxin/springcloudconsumer/service/HelloSlowFallBack.java

+package com.yingxin.springcloudconsumer.service;
+
+import com.yingxin.springcloudconsumer.entity.User;
+import org.springframework.stereotype.Component;
+
+import java.util.List;
+
+@Component
+public class HelloSlowFallBack implements HelloSlowService {
+
+    @Override
+    public String hello() {
+        System.out.println("slow server error.");
+        return "service error";
+    }
+
+    @Override
+    public User getUser() {
+        return new User();
+    }
+
+    @Override
+    public List<User> getUsers() {
+        return null;
+    }
+}

src/main/java/com/yingxin/springcloudconsumer/service/HelloSlowService.java

+package com.yingxin.springcloudconsumer.service;
+
+import com.yingxin.springcloudconsumer.entity.User;
+import org.springframework.cloud.openfeign.FeignClient;
+import org.springframework.web.bind.annotation.GetMapping;
+
+import java.util.List;
+
+@FeignClient(name = "spring-cloud-server-HelloWorldSlow", fallback = HelloSlowFallBack.class)
+public interface HelloSlowService {
+
+    @GetMapping("hello")
+    String hello();
+
+    @GetMapping("exampleforget")
+    User getUser();
+
+    @GetMapping("queryUserList")
+    List<User> getUsers();
+}

src/main/java/com/yingxin/springcloudconsumer/service/TestService.java

-//package com.yingxin.springcloudconsumer.service;
-//
-//import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
-//import org.springframework.stereotype.Service;
-//import org.springframework.web.client.RestTemplate;
-//
-//@Service
-//public class TestService {
-//
-//    private final RestTemplate restTemplate;
-//
-//    public TestService(RestTemplate restTemplate) {
-//        this.restTemplate = restTemplate;
-//    }
-//
-//    @HystrixCommand(fallbackMethod = "helloFallBack", threadPoolKey = "TestService")
-//    public String hello() {
-//        System.out.println("执行任务线程：" + Thread.currentThread().getName());
-//        return restTemplate.getForObject("http://spring-cloud-server-HelloWorld/hello1",String.class);
-//    }
-//
-//    @HystrixCommand(fallbackMethod = "helloFallBack", threadPoolKey = "TestService2")
-//    public String hello2() {
-//        System.out.println("执行任务线程：" + Thread.currentThread().getName());
-//        return restTemplate.getForObject("http://spring-cloud-server-HelloWorld/hello2",String.class);
-//    }
-//
-//    public String helloFallBack() {
-//        System.out.println("执行error任务线程：" + Thread.currentThread().getName());
-//        return "error";
-//    }
-//}
+package com.yingxin.springcloudconsumer.service;
+
+import com.netflix.hystrix.contrib.javanica.annotation.HystrixCommand;
+import org.springframework.stereotype.Service;
+import org.springframework.web.client.RestTemplate;
+
+@Service
+public class TestService {
+
+    private final RestTemplate restTemplate;
+
+    public TestService(RestTemplate restTemplate) {
+        this.restTemplate = restTemplate;
+    }
+
+    @HystrixCommand(fallbackMethod = "helloFallBack", threadPoolKey = "HelloFastService")
+    public String hello() {
+        System.out.println("执行任务线程：" + Thread.currentThread().getName());
+        return restTemplate.getForObject("http://spring-cloud-server-HelloWorldFast/hello",String.class);
+    }
+
+    @HystrixCommand(fallbackMethod = "helloFallBack", threadPoolKey = "HelloSlowService")
+    public String hello2() {
+        System.out.println("执行任务线程：" + Thread.currentThread().getName());
+        return restTemplate.getForObject("http://spring-cloud-server-HelloWorldSlow/hello",String.class);
+    }
+
+    public String helloFallBack() {
+        System.out.println("error：" + Thread.currentThread().getName());
+        return "error";
+    }
+}

src/main/resources/application.properties

@@ -2,6 +2,6 @@ server.port=9000
 spring.application.name=consumer
 eureka.client.service-url.defaultZone=http://localhost:8761/eureka/
 feign.hystrix.enabled=true
-hystrix.threadpool.default.coreSize=5
-hystrix.threadpool.HelloService.coreSize=10
-#hystrix.threadpool.HelloService2.coreSize=5
+hystrix.threadpool.default.coreSize=1
+hystrix.threadpool.HelloFastService.coreSize=5
+hystrix.threadpool.HelloSlowService.coreSize=3
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