spring-cloud-zuul 重试

   本文建立在spring-cloud-zuul环境搭建的基础上进行扩展介绍。

介绍

   zuul支持路由到客户端进行重试，通过spring-retry 实现， 系统默认是不允许重试的，如果开启重试客户端则需要支持请求的幂等性

Zuul 服务

maven依赖

<dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.cloud</groupId>
            <artifactId>spring-cloud-starter-netflix-zuul</artifactId>
        </dependency>

        <dependency>
            <groupId>org.springframework.retry</groupId>
            <artifactId>spring-retry</artifactId>
        </dependency>
           

配置

spring:
  application:
    name: zuul
  cloud:
    loadbalancer:
      retry:
        enabled: true  #负载均衡启动重试

zuul:
  routes:
    server:
      path: /server/**
      serviceId: server
  retryable: true  #是否开启重试功能

hystrix:
  command:
    default:
      execution:
        isolation:
          thread:
            timeoutInMilliseconds: 6000

ribbon:
  ConnectTimeout: 1000
  ReadTimeout: 1000
  MaxAutoRetries: 2   #对当前服务的重试次数
  MaxAutoRetriesNextServer: 1  #切换相同Server的次数
  OkToRetryOnAllOperations: true # 对所有请求都重试