简介

springcloud电子商务社交平台源码请加企鹅求求：一零三八七七四六二六。上一节我们讨论feign的配置，这节我们讨论一下，feign+hystrix调用生产者时，进行容错处理。

一、创建模块（microservice-consumer-movie-feign-with-hystrix）

二、pom.xml文件

     
         
              
       
        microservice-spring-cloud
               
       
        com.jacky
               
       
        1.0-SNAPSHOT
           
          
      
       4.0.0
            
      
       microservice-consumer-movie-feign-with-hystrix
          
      
       jar
           
              
       
        UTF-8
               
       
        UTF-8
               
       
        1.8
           
           
              
                   
        
         org.springframework.boot
                    
        
         spring-boot-starter-web
                
                
                   
        
         org.springframework.cloud
                    
        
         spring-cloud-starter-eureka
                
                
                   
        
         org.springframework.boot
                    
        
         spring-boot-starter-actuator
                
                
                   
        
         org.springframework.cloud
                    
        
         spring-cloud-starter-feign
                
                
                   
        
         org.springframework.cloud
                    
        
         spring-cloud-starter-hystrix
                
           
          
              
                   
                        
         
          com.spotify
                         
         
          docker-maven-plugin
                         
                             
                              
           
           
            build-image
            
           
            install
            
            
            
             build
             
            
                          
                         
                             
                              
          
           http://192.168.6.130:5678
                              
          
           true
          
                              
                              
          
           ${docker.repostory}/${docker.image.prefix}/${project.artifactId}:${project.version}
                              
                              
          
           java:openjdk-8-jdk-alpine
                              
                              
          
           ["java", "-jar", "/${project.build.finalName}.jar"]
                              
           
            
            
             /
             
            
             ${project.build.directory}
             
            
             ${project.build.finalName}.jar
             
            
                          
                     
                
           
      
     

三、配置文件application.yml

spring:  application:    name: microservice-consumer-movie-feign-with-hystrixserver:  port: 7901eureka:  client:    healthcheck:      enabled: true    serviceUrl:      defaultZone: http://jacky:admin@peer1:8761/eureka/,http://jacky:admin@peer2:8762/eureka/,http://jacky:admin@peer3:8763/eureka/  instance:    prefer-ip-address: true    instance-id: ${spring.application.name}:${spring.cloud.client.ipAddress}:${spring.application.instance_id:${server.port}}

四、实体类User.java

package com.jacky.cloud.entity; import java.math.BigDecimal; public class User {  private Long id;   private String username;   private String name;   private Short age;   private BigDecimal balance;   public Long getId() {    return this.id;  }   public void setId(Long id) {    this.id = id;  }   public String getUsername() {    return this.username;  }   public void setUsername(String username) {    this.username = username;  }   public String getName() {    return this.name;  }   public void setName(String name) {    this.name = name;  }   public Short getAge() {    return this.age;  }   public void setAge(Short age) {    this.age = age;  }   public BigDecimal getBalance() {    return this.balance;  }   public void setBalance(BigDecimal balance) {    this.balance = balance;  } }

五、生产者发生错误时使用的类（HystrixClientFallback.java）

package com.jacky.cloud.feign; import org.springframework.stereotype.Component; import com.jacky.cloud.entity.User; @Componentpublic class HystrixClientFallback implements UserFeignClient {   @Override  public User findById(Long id) {    User user = new User();    user.setId(0L);    return user;   }}

六、feign客户端UserFeignClient.java

package com.jacky.cloud.feign; import com.jacky.cloud.entity.User;import org.springframework.cloud.netflix.feign.FeignClient;import org.springframework.web.bind.annotation.PathVariable;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestMethod; @FeignClient(name = "microservice-provider-user", fallback = HystrixClientFallback.class)public interface UserFeignClient {  @RequestMapping(value = "/simple/{id}", method = RequestMethod.GET)  public User findById(@PathVariable("id") Long id);}

七、MovieController.java

package com.jacky.cloud.controller; import org.springframework.beans.factory.annotation.Autowired;import org.springframework.web.bind.annotation.GetMapping;import org.springframework.web.bind.annotation.PathVariable;import org.springframework.web.bind.annotation.RestController; import com.jacky.cloud.entity.User;import com.jacky.cloud.feign.UserFeignClient; @RestControllerpublic class MovieController {   @Autowired  private UserFeignClient userFeignClient;   @GetMapping("/movie/{id}")  public User findById(@PathVariable Long id) {    return this.userFeignClient.findById(id);  }}

八、启动类

package com.jacky.cloud; import org.springframework.boot.SpringApplication;import org.springframework.boot.autoconfigure.SpringBootApplication;import org.springframework.cloud.client.circuitbreaker.EnableCircuitBreaker;import org.springframework.cloud.netflix.eureka.EnableEurekaClient;import org.springframework.cloud.netflix.feign.EnableFeignClients; @SpringBootApplication@EnableEurekaClient@EnableFeignClients@EnableCircuitBreakerpublic class ConsumerMovieFeignApplication {  public static void main(String[] args) {    SpringApplication.run(ConsumerMovieFeignApplication.class, args);  }}

需要JAVASpring Cloud大型企业分布式微服务云构建的B2B2C电子商务平台源码请加企鹅求求：一零三八七七四六二六

 

标签：b2b2c,o2o电子商务,java多用户商城系统,spring cloud,java版社交电子商务