调用注册中心服务
一. 搭建一个Springboot项目
二. 导入eureka的jar包
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>2.1.3.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.mr</groupId>
<artifactId>springboot-eureka</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>springboot-eureka</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
<spring-cloud.version>Greenwich.SR1</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-netflix-eureka-server</artifactId>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</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>
</project>
三. 配置yml配置文件
server:
port: 8083
spring:
application:
name: CLIENT # 注册中心内显示的名称
eureka:
client:
service-url:
defaultZone: http://localhost:8080/eureka/ # 路径与注册中心的端口号一致
四. 启动类添加注释@EnableEurekaClient@EnableDiscoveryClient,声明调用工具类
@EnableDiscoveryClient//调用者注解
@SpringBootApplication
@EnableEurekaClient//客户端使用,---》注册服务
public class SpringbootEurekaClientApplication {
//声明调用工具类
@Bean
@LoadBalanced
RestTemplate restTemplate() {
return new RestTemplate();
}
public static void main(String[] args) {
SpringApplication.run(SpringbootEurekaClientApplication.class, args);
}
}
五. 写一个测试方法
@RestController
public class UserController {
//调用段, 得创建rest 工具类
@Autowired
private RestTemplate restTemplate;
@RequestMapping("toUser")
public String toUser(){
//调用端,调用中心已经注册的服务
System.out.println("调用服务");
String resu=restTemplate.getForObject("http://MR-SERVER/getGoodList", String.class);
return " test ok "+resu;
}
}
六. 查看显示下图,成功将服务注册到注册中心
1. 访问 127.0.0.1:8083/toUser
2. 最后访问 127.0.0.1:8080