Hystrix监控服务整合完成
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@ -18,6 +18,10 @@
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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</properties>
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<dependencies>
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<dependency>
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<groupId>org.springframework.boot</groupId>
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<artifactId>spring-boot-starter-actuator</artifactId>
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</dependency>
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<dependency>
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<groupId>org.springframework.cloud</groupId>
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<artifactId>spring-cloud-starter-netflix-hystrix</artifactId>
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@ -25,16 +25,9 @@ public class BorrowController {
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@Resource
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BorrowService service;
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@HystrixCommand(fallbackMethod = "onError") //使用@HystrixCommand来指定备选方案
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@RequestMapping("/borrow/{uid}")
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UserBorrowDetail findUserBorrows(@PathVariable("uid") int uid){
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return service.getUserBorrowDetailByUid(uid);
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}
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//备选方案，这里直接返回空列表了
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//注意参数和返回值要和上面的一致
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UserBorrowDetail onError(int uid){
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System.out.println("执行补救措施");
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return new UserBorrowDetail(null, Collections.emptyList());
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}
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}
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@ -12,7 +12,7 @@ import org.springframework.web.bind.annotation.RequestMapping;
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* @author yovinchen
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* @Create 2023/8/15 16:56
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*/
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@FeignClient("bookservice")
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@FeignClient(value = "bookservice", fallback = BookFallbackClient.class)
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public interface BookClient {
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@RequestMapping("/book/{bid}")
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Book findBookById(@PathVariable("bid") int bid);
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@ -0,0 +1,21 @@
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package com.test.service.client;
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import com.test.entity.Book;
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import org.springframework.stereotype.Component;
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/**
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* ClassName: BookFallbackClient
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* Package: com.test.service.client
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*
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* @author yovinchen
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* @Create 2023/8/15 20:37
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*/
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@Component //注意，需要将其注册为Bean，Feign才能自动注入
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public class BookFallbackClient implements BookClient {
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@Override
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public Book findBookById(int bid) { //这里我们自行对其进行实现，并返回我们的替代方案
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Book book = new Book();
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book.setTitle("我是替代方案");
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return book;
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}
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}
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@ -12,8 +12,8 @@ import org.springframework.web.bind.annotation.RequestMapping;
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* @author yovinchen
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* @Create 2023/8/15 16:54
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*/
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@FeignClient("userservice")
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//声明为userservice服务的HTTP请求客户端
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//fallback参数指定为我们刚刚编写的实现类
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@FeignClient(value = "userservice", fallback = UserFallbackClient.class)
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public interface UserClient {
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//路径保证和其他微服务提供的一致即可
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@ -0,0 +1,21 @@
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package com.test.service.client;
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import com.test.entity.User;
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import org.springframework.stereotype.Component;
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/**
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* ClassName: UserFallbackClient
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* Package: com.test.service.client
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*
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* @author yovinchen
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* @Create 2023/8/15 20:24
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*/
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@Component //注意，需要将其注册为Bean，Feign才能自动注入
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public class UserFallbackClient implements UserClient{
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@Override
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public User getUserById(int uid) { //这里我们自行对其进行实现，并返回我们的替代方案
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User user = new User();
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user.setName("我是替代方案");
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return user;
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}
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}
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@ -15,3 +15,11 @@ eureka:
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instance:
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prefer-ip-address: true
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instance-id: ${spring.cloud.client.ip-address}:${server.port}
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feign:
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circuitbreaker:
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enabled: true
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management:
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endpoints:
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web:
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exposure:
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include: '*'
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@ -0,0 +1,29 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<project xmlns="http://maven.apache.org/POM/4.0.0"
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xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
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xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
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<modelVersion>4.0.0</modelVersion>
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<parent>
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<groupId>com.example</groupId>
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<artifactId>SpringCloudStudy</artifactId>
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<version>0.0.1-SNAPSHOT</version>
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</parent>
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<groupId>org.example</groupId>
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<artifactId>hystrix-dashboard</artifactId>
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<properties>
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<maven.compiler.source>8</maven.compiler.source>
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<maven.compiler.target>8</maven.compiler.target>
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<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
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</properties>
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<dependencies>
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<dependency>
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<groupId>org.springframework.cloud</groupId>
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<artifactId>spring-cloud-starter-netflix-hystrix-dashboard</artifactId>
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<version>2.2.10.RELEASE</version>
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</dependency>
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</dependencies>
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</project>
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@ -0,0 +1,20 @@
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package com.test;
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import org.springframework.boot.SpringApplication;
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import org.springframework.boot.autoconfigure.SpringBootApplication;
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import org.springframework.cloud.netflix.hystrix.dashboard.EnableHystrixDashboard;
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/**
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* ClassName: HystrixApplication
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* Package: com.test
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*
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* @author yovinchen
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* @Create 2023/8/15 21:19
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*/
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@SpringBootApplication
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@EnableHystrixDashboard
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public class HystrixDashBoardApplication {
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public static void main(String[] args) {
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SpringApplication.run(HystrixDashBoardApplication.class, args);
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}
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}
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@ -0,0 +1,6 @@
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server:
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port: 8900
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hystrix:
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dashboard:
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# 将localhost添加到白名单，默认是不允许的
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proxy-stream-allow-list: "localhost"
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