标签：map path import 自身 mapping 保护 自我 ret name
服务容器：
项目添加Eureka Server
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.2.1.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<properties>
<java.version>1.8</java.version>
<spring-cloud.version>Hoxton.RELEASE</spring-cloud.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-server</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</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>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
修改配置文件
spring:
application:
name: eureka-server
server:
port: 2001
eureka:
server:
enable-self-preservation: false #eureka 的自我保护状态
instance:
hostname: eureka1 #集群通过hostname来区分
client:
register-with-eureka: false #不向自身注册
fetch-registry: false #不从自身拉取注册信息
主程序入口修改
@EnableEurekaServer @SpringBootApplication public class SpEurekaApplication { public static void main(String[] args) { SpringApplication.run(SpEurekaApplication.class, args); } }
修改hosts文件，添加域名映射
127.0.0.1 eureka1 127.0.0.1 eureka2
服务提供：
1. 添加eureka依赖
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
2. 修改application.yml添加eureka注册配置
eureka: client: service-url: defaultZone: http://eureka1:2001/eureka #为容器中的server.port的端口
3. 为这个项目的主程序添加EnableDiscoveryClient注解
eureka的集群设置
在容器的application.yml中 ，使用不同的配置启动两个主程序
spring: profiles: active: eureka2 --- spring: profiles: eureka1 application: name: eureka-server server: port: 2001 eureka: instance: hostname: eureka1 client: register-with-eureka: true #profile的配置会覆盖公用配置 fetch-registry: true #profile的配置会覆盖公用配置 service-url: defaultZone: http://eureka2:2002/eureka #eureka1启动时向eureka2注册 --- spring: profiles: eureka2 application: name: eureka-server server: port: 2002 eureka: instance: hostname: eureka2 client: register-with-eureka: true #profile的配置会覆盖公用配置 fetch-registry: true #profile的配置会覆盖公用配置 service-url: defaultZone: http://eureka2:2002/eureka #eureka1启动时向eureka2注册
服务的提供者的application.yml文件修改
eureka: client: service-url: defaultZone: http://eureka1:2001/eureka, http://eureka2:2002/eureka
消费者：ribbon
添加EurekaDiscoveryClient依赖
application.yml文件
spring: application: name: ribbon server: port: 3001 eureka: client: service-url: defaultZone: http://eureka1:2001/eureka，http://eureka2:2002/eureka
主程序修改
@EnableDiscoveryClient @SpringBootApplication public class SpRibbonApplication { //创建 RestTemplate 实例，并存入 spring 容器
//@LoadBalanced //负载均衡注解 @Bean public RestTemplate getRestTemplate() { return new RestTemplate(); } public static void main(String[] args) { SpringApplication.run(SpRibbonApplication.class, args); } }
使用时如在controller中：
@RestController public class RibbonController { @Autowired private RestTemplate rt; @GetMapping("/item-service/{orderId}") public JsonResult<List<Item>> getItems(@PathVariable String orderId) { //这里服务器路径用 service-id 代替，ribbon 会向服务的多台集群服务器分发请求 //return rt.getForObject("http://localhost:8101/{1}", JsonResult.class, orderId); return rt.getForObject("http://item-service/{1}", JsonResult.class, orderId); } }
spring cloud --eureka --ribbon
标签：map path import 自身 mapping 保护 自我 ret name
原文地址：https://www.cnblogs.com/Web-spring/p/12145633.html
