使用环境是 STS + maven
1 创建父级 项目,springcloud-demo1
new -> maven project ->
按照要求进行配置即可。然后删除 src目录,因为父级项目只是配置项目依赖和版本控制使用。
1.2 修改 pom 文件
<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.huitong</groupId> <artifactId>springcloud-demo1</artifactId> <version>0.0.1-SNAPSHOT</version> <packaging>pom</packaging> <properties> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> <project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding> <java.version>1.8</java.version> <spring-cloud.version>Edgware.SR4</spring-cloud.version> </properties> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>1.5.13.RELEASE</version> </parent> <dependencyManagement> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-dependencies</artifactId> <version>${spring-cloud.version}</version> <type>pom</type> <scope>import</scope> </dependency> </dependencies> </dependencyManagement> <modules> </modules> </project>
此时也要注意springcloud 和 springboot 版本之间有一定的关联性,最好使用官网推荐的对应版本。否则可能会出现版本不兼容的问题。我就是这么趟的坑过来的
2 创建 eureka server端项目,spring-cloud-sureka-server
在 springcloud-demo1 项目上右击, new -> maven module
2.2 修改 pom 文件,添加 eureka-server 依赖, spring-cloud-starter-eureka-server
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd"> <modelVersion>4.0.0</modelVersion> <parent> <groupId>com.huitong</groupId> <artifactId>springcloud-demo1</artifactId> <version>0.0.1-SNAPSHOT</version> </parent> <artifactId>spring-cloud-eureka-server</artifactId> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-eureka-server</artifactId> </dependency> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-devtools</artifactId> <optional>true</optional> </dependency> </dependencies> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project>
2.3 添加配置文件 application.yml
server: port: 8010 eureka: instance: hostname: 127.0.0.1 prefer-ip-address: true client: register-with-eureka: false fetch-registry: false service-url: default-zone: http://${eureka.instance.hostname}:${server.port}/eureka/
eureka 配置说明 可见 http://www.cnblogs.com/li3807/p/7282492.html
在 server 端 service-url 指定暴露出的注册服务地址。让客户端可以将应用注册到该地址上。
2.4 添加启动类,StartEurekaServer
import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.cloud.netflix.eureka.server.EnableEurekaServer; @SpringBootApplication @EnableEurekaServer public class StartEurekaServer { public static void main(String[] args) { SpringApplication.run(StartEurekaServer.class, args); } }
3 新建一个服务提供端 module,spring-cloud-eureka-client-demo1,跟 eureka 方法一样,在springcloud-demo1项目上右击, new -> maven module
3.2 修改 pom 文件
<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>com.huitong</groupId> <artifactId>springcloud-demo1</artifactId> <version>0.0.1-SNAPSHOT</version> </parent> <artifactId>spring-cloud-eureka-client-demo1</artifactId> <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> <!-- https://mvnrepository.com/artifact/org.projectlombok/lombok --> <dependency> <groupId>org.projectlombok</groupId> <artifactId>lombok</artifactId> <scope>provided</scope> </dependency> <!-- https://mvnrepository.com/artifact/org.apache.commons/commons-lang3 --> <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-lang3</artifactId> </dependency> </dependencies> </project>
3.3 添加配置文件 application.yml
server: port: 8020 spring: application: name: eureka-client-demo1 eureka: instance: preferIpAddress: true hostname: 127.0.0.1 instanceId: ${spring.cloud.client.ipAddress:127.0.0.1}:${server.port} client: registerWithEureka: true fetchRegistry: true serviceUrl: defaultZone: http://${eureka.instance.hostname}:${eureka.port:8010}/eureka/
3.4 编写启动类,SpringCloudDemo1
import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.cloud.netflix.eureka.EnableEurekaClient; @SpringBootApplication @EnableEurekaClient public class SpringCloudDemo1 { public static void main(String[] args) { SpringApplication.run(SpringCloudDemo1.class, args); } }
3.5 简单的实体类,Student
import lombok.AllArgsConstructor; import lombok.Builder; import lombok.Data; import lombok.NoArgsConstructor; @Data @NoArgsConstructor @AllArgsConstructor @Builder public class Student { private String name; private Integer age; }
3.6 Controller
import org.apache.commons.lang3.ObjectUtils; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.bind.annotation.RestController; @RestController public class StudentController { @RequestMapping(value="/student/demo1", method=RequestMethod.GET) public Student getStu1() { Student result = Student.builder().name("allen").age(23).build(); if (ObjectUtils.allNotNull(result)) { System.out.println(result); } return result; } }
此时访问页面 :http://localhost:8010/
说明:由于springcloud 版本低或者什么原因,在编写配置时,使用的是 横线命名法 启动的时候一直给我报错,com.sun.jersey.api.client.ClientHandlerException: java.net.ConnectException: Connection refused: connect
后来查阅大量资料发现将配置属性全部改为 驼峰命名法 就好了
原文地址:https://www.cnblogs.com/zhaopengcheng/p/9539660.html