Spring-cloud 註冊服務提供者搭建方法
上文已經寫了如何去搭建註冊中心,僅有註冊中心是遠遠不夠的,所以我們需要註冊到註冊中心並提供服務的節點,這裏稱為註冊服務提供者
前提
閱讀上文,並成功搭建註冊中心,環境無需改變
項目搭建
這裏我們需要新建一個maven項目,項目名稱之前沒有起好,這裏就參考一下,我的是SpringCloudDemo,不要在意這些細節!
修改pom文件,參考如下:
註意:請看好這些jar包的版本號,文末我會貼出之前我搭建的兩個比較簡單的demo的github路徑
- <?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>
- <groupId>com.hellxz</groupId>
- <artifactId>SpringCloudDemo</artifactId>
- <version>0.0.1-SNAPSHOT</version>
- <packaging>jar</packaging>
- <name>SpringCloudDemo</name>
- <description>Demo project for Spring Boot</description>
- <parent>
- <groupId>org.springframework.boot</groupId>
- <artifactId>spring-boot-starter-parent</artifactId>
- <version>1.5.9.RELEASE</version>
- <relativePath/> <!-- lookup parent from repository -->
- </parent>
- <dependencyManagement>
- <dependencies>
- <dependency>
- <groupId>org.springframework.cloud</groupId>
- <artifactId>spring-cloud-dependencies</artifactId>
- <version>Camden.SR3</version>
- <type>pom</type>
- <scope>import</scope>
- </dependency>
- </dependencies>
- </dependencyManagement>
- <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.boot</groupId>
- <artifactId>spring-boot-starter-web</artifactId>
- </dependency>
- <dependency>
- <groupId>org.springframework.boot</groupId>
- <artifactId>spring-boot-starter-test</artifactId>
- <scope>test</scope>
- </dependency>
- <!--用於監控項目,提供項目中的狀態信息-->
- <dependency>
- <groupId>org.springframework.boot</groupId>
- <artifactId>spring-boot-starter-actuator</artifactId>
- </dependency>
- <!--junit測試-->
- <dependency>
- <groupId>junit</groupId>
- <artifactId>junit</artifactId>
- <version>4.8.2</version>
- </dependency>
- <dependency>
- <groupId>org.springframework.cloud</groupId>
- <artifactId>spring-cloud-starter-eureka</artifactId>
- </dependency>
- <dependency>
- <groupId>org.springframework.cloud</groupId>
- <artifactId>spring-cloud-config-server</artifactId>
- </dependency>
- </dependencies>
- <build>
- <plugins>
- <plugin>
- <groupId>org.springframework.boot</groupId>
- <artifactId>spring-boot-maven-plugin</artifactId>
- </plugin>
- <plugin>
- <groupId>org.apache.maven.plugins</groupId>
- <artifactId>maven-compiler-plugin</artifactId>
- <configuration>
- <source>1.8</source>
- <target>1.8</target>
- </configuration>
- </plugin>
- </plugins>
- </build>
- </project>
雖然版本號不同於EurekaServer註冊中心項目,但是經實踐是可以正常使用的,請放心
新建一個啟動類(每個springboot項目中都有)
- package com.hellxz.springcloudhelloworld;
- import org.springframework.boot.SpringApplication;
- import org.springframework.boot.autoconfigure.SpringBootApplication;
- import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
- /**
- * @Author : Hellxz
- * @Description: EurekaClient
- * @Date : 2018/4/13 16:57
- */
- @EnableDiscoveryClient
- @SpringBootApplication
- public class SpringCloudDemoApplication {
- public static void main(String[] args) {
- SpringApplication.run(SpringCloudDemoApplication.class, args);
- }
- }
新建一個controller類,留作之後測試
- package com.hellxz.springcloudhelloworld;
- import org.apache.log4j.Logger;
- import org.springframework.beans.factory.annotation.Autowired;
- import org.springframework.cloud.client.ServiceInstance;
- import org.springframework.cloud.client.discovery.DiscoveryClient;
- import org.springframework.web.bind.annotation.RequestMapping;
- import org.springframework.web.bind.annotation.RequestMethod;
- import org.springframework.web.bind.annotation.RestController;
- /**
- * @Author : Hellxz
- * @Description: 服務提供者
- * @Date : 2018/4/12 11:36
- */
- @RestController
- public class SpringbootController {
- @Autowired
- private DiscoveryClient client; //註入發現客戶端
- private final Logger logger = Logger.getLogger(SpringbootController.class);
- @RequestMapping(value = "/hello", method = RequestMethod.GET)
- public String hello(){
- //獲取服務實例,作用為之後console顯示效果
- ServiceInstance serviceInstance = client.getLocalServiceInstance();
- logger.info("/hello host:"+serviceInstance.getHost()+" service_id:" +serviceInstance.getServiceId());
- return "hello";
- }
- }
在src/resources文件夾下創建application.yml 這次使用yaml進行配置,如果想嘗試properties文件方式,請參考上文,此處配置的提供服務地址請參考註冊中心的配置
- server:
- port: 8080
- spring:
- application:
- name: hello-service
- eureka:
- client:
- serviceUrl:
- defaultZone:
- http://localhost:1111/eureka/
好了,我們將這個項目跑在8080端口,並可以去註冊中心註冊服務了
先啟動註冊中心的項目,待其啟動完畢之後,在來啟動本項目。
測試
輸入註冊中心的url查看:localhost:1111
訪問剛才配置的controller路徑: http://localhost:8080/hello
如右圖所示,註冊成功。
此時我們就可以使用這個項目進行提供服務了
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Spring-cloud 註冊服務提供者搭建方法