spring cloud 入門(二)【 客戶端往註冊中心Eureka 註冊服務】
阿新 • • 發佈:2018-12-11
客戶端 往Eureka 註冊服務,註冊成功之後,其他的服務,才可以對本服務進行呼叫
程式碼結構如下:
UserApplication 程式碼如下:
package com.study.user; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.cloud.netflix.eureka.EnableEurekaClient; import org.springframework.cloud.netflix.feign.EnableFeignClients; @EnableEurekaClient @SpringBootApplication public class UserApplication { public static void main(String[] args) { SpringApplication.run(UserApplication.class, args); } }
UserController 程式碼:
package com.study.user.controller; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; @RestController public class UserController { private final static Logger logger = LoggerFactory.getLogger(UserController.class); /** */ @GetMapping("/helloUser") public String helloUser() { return "helloUser"; } }
application.properties
server.port=8763 eureka.client.service-url.defaultZone = http://localhost:8761/eureka/ spring.application.name=user
配置解釋:
eureka.client.service-url.defaultZone 這個填寫的就是 註冊中心 eureka 的地址
server.port 本伺服器對外暴露的服務介面
spring.application.name 本伺服器名稱,這個每個服務都需要配置,eureka 是通過服務名稱對各個服務進行管理的
pom 檔案:
<?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"> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.5.2.RELEASE</version> <relativePath/> </parent> <modelVersion>4.0.0</modelVersion> <artifactId>user</artifactId> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-feign</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-eureka</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> <dependency> <groupId>com.study</groupId> <artifactId>core</artifactId> <version>1.0-SNAPSHOT</version> <scope>compile</scope> </dependency> </dependencies> <dependencyManagement> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-dependencies</artifactId> <version>Dalston.RC1</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> <repositories> <repository> <id>spring-milestones</id> <name>Spring Milestones</name> <url>https://repo.spring.io/milestone</url> <snapshots> <enabled>false</enabled> </snapshots> </repository> </repositories> </project>
啟動 UserApplication
紅色部分程式碼註冊成功
再次訪問 eureka
紅色是我們註冊的服務 後面是 8763 埠