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怎么在Spring boot2X中实现负载均衡和反向代理

发布时间:2021-05-31 17:48:26 来源:亿速云 阅读:142 作者:Leah 栏目:编程语言

怎么在Spring boot2X中实现负载均衡和反向代理?针对这个问题,这篇文章详细介绍了相对应的分析和解答,希望可以帮助更多想解决这个问题的小伙伴找到更简单易行的方法。

实现反向代理

怎么在Spring boot2X中实现负载均衡和反向代理

1.服务注册发现中心Consul

启动

consul agent -dev

2.服务端

provider和provider1

spring boot 版本 2.2.1.RELEASE

(1)添加依赖

<properties>
    <java.version>1.8</java.version>
    <spring-cloud.version>Greenwich.SR3</spring-cloud.version>
  </properties>

  <dependencies>
    <dependency>
      <groupId>org.springframework.boot</groupId>
      <artifactId>spring-boot-starter-web</artifactId>
    </dependency>

    <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-consul-discovery</artifactId>
    </dependency>

  </dependencies>

  <dependencyManagement>
    <dependencies>
      <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-dependencies</artifactId>
        <version>${spring-cloud.version}</version>
        <type>pom</type>
        <scope>import</scope>
      </dependency>
    </dependencies>
  </dependencyManagement>

(2)配置

server.port=8010

spring.application.name=service-provider
spring.cloud.consul.host=localhost
spring.cloud.consul.port=8500
spring.cloud.consul.discovery.health-check-path=/actuator/health
spring.cloud.consul.discovery.service-name=${spring.application.name}
spring.cloud.consul.discovery.heartbeat.enabled=true

management.endpoints.web.exposure.include=*
management.endpoint.health.show-details=always

(3)测试方法

package com.xyz.provider.controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class demoController {
  @RequestMapping("/hello")
  public String Hello(){
    return "hello,provider";
  }
}

(4)启动类

package com.xyz.provider;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
@EnableDiscoveryClient
@SpringBootApplication
public class ProviderApplication {
  public static void main(String[] args) {
    SpringApplication.run(ProviderApplication.class, args);
  }
}

provide1的

server.port=8011

测试方法

package com.xyz.provider1.controller;

import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class demoController {
  @RequestMapping("/hello")
  public String Hello(){
    return "hello,another provider";
  }

}

3.网关

  • zuul

  • Spring boot版本 2.1.8.RELEASE

上面用的Spring boot版本为 2.2.1.RELEASE

但是启动时遇到了报错,因此改成了这个版本

(1)添加依赖

<properties>
    <java.version>1.8</java.version>
    <spring-cloud.version>Greenwich.SR2</spring-cloud.version>
  </properties>

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

    <dependency>
      <groupId>org.springframework.cloud</groupId>
      <artifactId>spring-cloud-starter-consul-discovery</artifactId>
    </dependency>

  </dependencies>

  <dependencyManagement>
    <dependencies>
      <dependency>
        <groupId>org.springframework.cloud</groupId>
        <artifactId>spring-cloud-dependencies</artifactId>
        <version>${spring-cloud.version}</version>
        <type>pom</type>
        <scope>import</scope>
      </dependency>
    </dependencies>
  </dependencyManagement>

(2)添加配置

server.port=8090

spring.application.name=service-zuul
spring.cloud.consul.host=localhost
spring.cloud.consul.port=8500
spring.cloud.consul.discovery.service-name=${spring.application.name}
spring.cloud.consul.discovery.instance-id=${spring.application.name}:${server.port}
management.endpoints.web.exposure.include=*
management.endpoint.health.show-details=always

zuul.routes.api.path=/api/**
zuul.routes.api.serviceId=service-provider

(3)启动类

package com.xyz.zuul;

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.cloud.netflix.zuul.EnableZuulProxy;

@EnableZuulProxy
@SpringBootApplication
public class ZuulApplication {

  public static void main(String[] args) {
    SpringApplication.run(ZuulApplication.class, args);
  }
}

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