SpringCloud之Ribbon
SpringCloud通过Ribbon实现负载均衡。 一、添加Maven依赖<dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-netflix-eureka-client</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-web</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-netflix-ribbon</artifactId> </dependency> 二、application.yml配置eureka: client: serviceUrl: defaultZone: http://localhost:8761/eureka/ server: port: 8765 spring: application: name: blog-ribbon-client 三、主类编写package com.springcloud.blog; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.cloud.client.circuitbreaker.EnableCircuitBreaker; import org.springframework.cloud.client.discovery.EnableDiscoveryClient; import org.springframework.cloud.client.loadbalancer.LoadBalanced; import org.springframework.cloud.netflix.eureka.EnableEurekaClient; import org.springframework.cloud.netflix.hystrix.EnableHystrix; import org.springframework.context.annotation.Bean; import org.springframework.web.client.RestTemplate; @SpringBootApplication @EnableEurekaClient @EnableDiscoveryClient @EnableHystrix @EnableCircuitBreaker public class BlogRibbonClientApplication { static void main(String[] args) { SpringApplication.run(BlogRibbonClientApplication.,args); } @Bean @LoadBalanced RestTemplate restTemplate() { return new RestTemplate(); } } 四、编写测试相关1.编写测试业务接口类 package com.springcloud.blog.example; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Service; import org.springframework.web.client.RestTemplate; @Service TestService { @Autowired RestTemplate restTemplate; public String getPhone(String phone) { return restTemplate.getForObject("http://BLOG-API/juhe/getPhoneInfo?phone=" + phone,String.); } } 注意: 关于restTemplate分别实现RESTFUL相关,如POST、GET、DELETE、PUT等。 通过调用restTemplate.postForEntity(url,respResult)、restTemplate.getForEntity(url,respResult)、restTemplate.delete(url,respResult)、restTemplate.put(url,respResult)等,就能立马实现。 其中的url一定要是eureka服务注册中心中存在的实例,同时实例后面相关的请求接口URL一定是要存在的,否则没有意义。 2.编写测试路由类 package com.springcloud.blog.example; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; @RestController @RequestMapping(value = /test") TestController { @Autowired TestService testService; @GetMapping(value = /getPhone) String getPhone(String phone) { return testService.getPhone(phone); } } 五、测试请求的是我个人博客系统第三方集成API相关接口,图中的例子是输入个人手机号可获取该手机号相关信息 (编辑:李大同) 【声明】本站内容均来自网络,其相关言论仅代表作者个人观点,不代表本站立场。若无意侵犯到您的权利,请及时与联系站长删除相关内容! |