Springboot2X中怎么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。
zuul 是netflix开源的一个API Gateway 服务器
所有从设备或网站来的请求都会经过Zuul到达后端的Netflix应用程序。
作为一个边界性质的应用程序,Zuul提供了动态路由、监控、弹性负载和安全功能。
实现反向代理
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>${spring-cloud.version}</version> <type>pom</type> <scope>import</scope> </dependency> </dependencies> </dependencyManagement>
(2)配置
server.port=8010spring.application.name=service-providerspring.cloud.consul.host=localhostspring.cloud.consul.port=8500spring.cloud.consul.discovery.health-check-path=/actuator/healthspring.cloud.consul.discovery.service-name=${spring.application.name}spring.cloud.consul.discovery.heartbeat.enabled=truemanagement.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;@RestControllerpublic 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@SpringBootApplicationpublic 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;@RestControllerpublic 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>${spring-cloud.version}</version> <type>pom</type> <scope>import</scope> </dependency> </dependencies> </dependencyManagement>
(2)添加配置
server.port=8090spring.application.name=service-zuulspring.cloud.consul.host=localhostspring.cloud.consul.port=8500spring.cloud.consul.discovery.service-name=${spring.application.name}spring.cloud.consul.discovery.instance-id=${spring.application.name}:${server.port}management.endpoints.web.exposure.include=*management.endpoint.health.show-details=alwayszuul.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@SpringBootApplicationpublic class ZuulApplication { public static void main(String[] args) { SpringApplication.run(ZuulApplication.class, args); }}
启动Consul
启动provider、provider1
启动 zuul
访问http://127.0.0.1:8090/api/hello
结果输出:
hello,provider和hello,another provider
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