公司要搭建PAAS云平台,一直在忙PAAS平台的文档和编码工作,博客好久没有维护了,关于Spring Cloud系列的文章一直都没有写,今天刚刚好休息,就来讲一下spring cloud服务发现与注册。
一如既往,创建一个maven项目(eureka-server),pom.xml配置如下:
<?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.sixtykb</groupId> <artifactId>edge-service</artifactId> <packaging>jar</packaging> <name>edge-service</name> <description>Edge Service project for Spring Cloud</description> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.3.5.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <properties> <start-class>com.sixtykb.cloud.DiscoveryApplication</start-class> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <java.version>1.8</java.version> <spring-cloud.version>Brixton.SR1</spring-cloud.version> </properties> <dependencyManagement> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-dependencies</artifactId> <version>${spring-cloud.version}</version> <type>pom</type> <scope>import</scope> </dependency> </dependencies> </dependencyManagement> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-config</artifactId> </dependency> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-zuul</artifactId> </dependency> <!--<dependency>--> <!--<groupId>org.springframework.cloud</groupId>--> <!--<artifactId>spring-cloud-starter-oauth2</artifactId>--> <!--</dependency>--> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-eureka</artifactId> </dependency> <!--<dependency>--> <!--<groupId>com.sixtykb</groupId>--> <!--<artifactId>logging-sdk</artifactId>--> <!--</dependency>--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope> </dependency> </dependencies> <build> <sourceDirectory>${project.basedir}/src/main/java</sourceDirectory> <testSourceDirectory>${project.basedir}/src/test/java</testSourceDirectory> <resources> <resource> <directory>${project.basedir}/src/main/resources</directory> </resource> </resources> <testResources> <testResource> <directory>${project.basedir}/src/test/resources</directory> </testResource> </testResources> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> <plugin> <groupId>org.apache.maven.plugins</groupId> <artifactId>maven-compiler-plugin</artifactId> <configuration> <source>${java.version}</source> <target>${java.version}</target> <encoding>${project.build.sourceEncoding}</encoding> </configuration> </plugin> </plugins> </build> </project>
如果要看具体项目请查看:https://coding.net/u/meyer/p/discovery-service/git/tree/master
创建类:com.sixtykb.cloud.DiscoveryApplication
/** * Created by meyer on 16/3/4. */ @EnableEurekaServer @SpringBootApplication public class DiscoveryApplication extends SpringBootServletInitializer{ public static void main(String[] args) { SpringApplication.run(DiscoveryApplication.class, args); } @Override protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) { return builder.web(true).sources(DiscoveryApplication.class); } }
在目录 src/main/resources创建文件:bootstrap.yml
server: port: ${app.port:8761} spring: application: name: discovery # eureka 配置 eureka: instance: hostname: ${app.hostname:${spring.application.name}} app-group-name: ${app.group:COMPONENTS} client: register-with-eureka: false fetch-registry: false service-url: defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/ info: app.name: ${spring.application.name} app.hostname: ${eureka.instance.hostname} app.port: ${server.port} app.group: ${eureka.instance.app-group-name} app.version: ${app.version:1.0.0} app.description: "服务发现以注册(Eureka)" eureka.url: ${eureka.client.service-url.defaultZone} log.file: ${log.path:${java.io.tmpdir:/var/log}}/${spring.application.name}.log logging: file: ${log.path:${java.io.tmpdir:/var/log}}/${spring.application.name}.log # 开启重启api endpoints: restart: enabled: true
使用命令启动项目:mvn spring-boot:run。这样服务注册服务端就完成,这里我们就不往深里挖了。
一如既往,创建maven项目(eureka-client),pom.xml配置如下:
<?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.sixtykb</groupId> <artifactId>eureka-client</artifactId> <version>1.0-SNAPSHOT</version> <name>eureka-client</name> <description>Passport Server project for Spring Cloud</description> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.3.5.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <<properties> <start-class>com.sixtykb.cloud.DiscoveryClientApplication</start-class> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <java.version>1.8</java.version> <spring-cloud.version>Brixton.SR1</spring-cloud.version> </properties> <dependencyManagement> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-dependencies</artifactId> <version>${spring-cloud.version}</version> <type>pom</type> <scope>import</scope> </dependency> </dependencies> </dependencyManagement> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-eureka</artifactId> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project>
创建spring boot的启动类:com.sixtykb.cloud.DiscoveryClientApplication
/** * Created by meyer on 16/3/17. */ @EnableDiscoveryClient @SpringCloudApplication public class DiscoveryClientApplication extends SpringBootServletInitializer { public static void main(String[] args) { SpringApplication.run(PassportApplication.class, args); } @Override protected SpringApplicationBuilder configure(SpringApplicationBuilder builder) { return builder.web(true).sources(PassportApplication.class); } }
在目录 src/main/resources创建文件:bootstrap.yml
该文件指定eureka-server运行的ip和端口号
eureka: client: serviceUrl: defaultZone: http://user:${eureka.password}@localhost:8761/eureka/ instance: leaseRenewalIntervalInSeconds: 10 metadataMap: instanceId: ${vcap.application.instance_id:${spring.application.name}:${spring.application.instance_id:${server.port}}}
如果eureka-server运行后再启动eureka-client。
在浏览器输入:http://localhost:8761/就可以看到eureka-client是否注册成功。
有关分布式系统demo源码git地址:https://coding.net/u/meyer
Maven 阿里云资源库:http://maven.60kb.com/
转载请注明:晓窗博客 » spring Cloud 微服务学习之服务发现与注册