Spring Cloud构建微服务架构(一)服务注册与发现
2017-12-10 20:27
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本文的宗旨是如何使用Spring Cloud搭建服务注册与发现模块,我们这里的核心内容就是服务发现模块:Eureka
参考文章:http://blog.csdn.net/forezp/article/details/69696915 在myeclipse 环境下实现
我们需要创立一个Eureka Server和一个Eureka Client
1.创建服务注册中心
1.1首先创建MAVEN工程,加入依赖:
1.2启动一个服务注册中心
1.3配置文件
参考文章:http://blog.csdn.net/forezp/article/details/69696915 在myeclipse 环境下实现
我们需要创立一个Eureka Server和一个Eureka Client
1.创建服务注册中心
1.1首先创建MAVEN工程,加入依赖:
<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.spring.cloud</groupId> <artifactId>java-maven</artifactId> <version>0.0.1-SNAPSHOT</version> <build> <plugins> <plugin> <artifactId>maven-compiler-plugin</artifactId> <configuration> <source>1.6</source> <target>1.6</target> </configuration> </plugin> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> <name>eurekaserver</name> <description>Demo project for Spring Boot</description> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.5.2.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <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> <!--eureka server --> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-eureka-server</artifactId> </dependency> <!-- spring boot test--> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-test</artifactId> <scope>test</scope 4000 > </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> <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>
1.2启动一个服务注册中心
package Test; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer; @EnableEurekaServer @SpringBootApplication public class EurekaserverApplication { public static void main(String[] args) { SpringApplication.run(EurekaserverApplication.class, args); } }
1.3配置文件
server: port: 8761 eureka: instance: hostname: localhost client: registerWithEureka: false // fetchRegistry: false //这两个false可以防止Eureka注册自身 serviceUrl: defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/[/code]1.4启动后界面
没有服务自然也没有服务被发现
2.创建服务提供者
2.1首先创建MAVEN工程,加入依赖<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>test</groupId> <artifactId>java-maven-client</artifactId> <version>0.0.1-SNAPSHOT</version> <name>service-hi</name> <description>Demo project for Spring Boot</description> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.5.2.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <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-eureka</artifactId> </dependency> <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> </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>2.2启动一个客户端:package test; import org.springframework.beans.factory.annotation.Value; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.cloud.netflix.eureka.EnableEurekaClient; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation.RestController; @SpringBootApplication @EnableEurekaClient @RestController public class ServiceHiApplication { public static void main(String[] args) { SpringApplication.run(ServiceHiApplication.class, args); } @Value("${server.port}") String port; @RequestMapping("/hi") public String home(@RequestParam String name) { return "hi "+name+",i am from port:" +port; } }2.3配置文件eureka: client: serviceUrl: defaultZone: http://localhost:8761/eureka/ server: port: 8762 spring: application: name: service-hi2.4启动
然后我们访问:
http://localhost:8762/hi?name=heidou
可以在页面看到:![]()
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