从零开始搭建SpringCloud项目

环境准备:

    Mvean、Idea、Win10

1.创建父级SpringBoot项目

在Idea工具中选择File→New→Project

创建SpringBoot项目

输入父级项目相关信息

一直Next直到创建完成.

创建完成后,打开pom.xml文件,进行设置子级项目公用的jar包.

 

父级项目Pom.xml文件如下:

<?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> <parent> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter-parent</artifactId> <version>2.1.6.RELEASE</version> <relativePath/> <!-- lookup parent from repository --> </parent> <groupId>com.dylan</groupId> <artifactId>clound-flat</artifactId> <version>0.0.1-SNAPSHOT</version> <name>clound-flat</name> <description>Demo project for Spring Boot</description> <modules> <module>eureka</module> </modules> <properties> <java.version>1.8</java.version> </properties> <dependencies> <dependency> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-starter</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> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project>

 

2.创建子级springCloud Eureka项目

注意,在父级的基础上新建module，同Maven项目.

勾选选Eureka Server

一直Next直至创建成功!

3.配置Ereka Server

打开Ereka项目下的Pom.xml文件,修改Parent标签下的信息为之前所创建的父级项目,设置为引用父级所引入的jar包.

groupId为父级的分组:com.dylan artifactId为父级项目得名称唯一标识:cloud-flat

version为版本号

设置后,则当前项目会引用父级项目所导入的jar包,避免重复导入多个jar包。

eureka pom.xml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> <parent> <groupId>com.dylan</groupId> <artifactId>clound-flat</artifactId> <version>0.0.1-SNAPSHOT</version> <relativePath/> <!-- lookup parent from repository --> </parent> <groupId>com.dylan</groupId> <artifactId>eureka</artifactId> <version>0.0.1-SNAPSHOT</version> <name>eureka</name> <description>Demo project for Spring Boot</description> <properties> <java.version>1.8</java.version> <spring-cloud.version>Greenwich.SR2</spring-cloud.version> </properties> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-netflix-eureka-server</artifactId> </dependency> </dependencies> <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> <build> <plugins> <plugin> <groupId>org.springframework.boot</groupId> <artifactId>spring-boot-maven-plugin</artifactId> </plugin> </plugins> </build> </project>

配置application.yml文件

server: port: 8761 eureka: instance: hostname: localhost client: registerWithEureka: false fetchRegistry: false serviceUrl: defaultZone: http://${eureka.instance.hostname}:${server.port}/eureka/ spring: application: name: eurka-server EurekaApplication增加配置: @SpringBootApplication @EnableEurekaServer public class EurekaApplication { public static void main(String[] args) { SpringApplication.run(EurekaApplication.class, args); } }

启动项目,访问:http://localhost:8761

显示上图内容，那么恭喜你,eureka配置完成.springcloud注册中心:Server端已完成,接下来进行Client端的创建。

4.创建自定义服务

新建module，Group同上,Artifact设置为servic-demo

勾选Eureka Discovery Client，表示当前创建的为服务端。

配置服务端service-demo的pom.xml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> <parent> <groupId>com.dylan</groupId> <artifactId>clound-flat</artifactId> <version>0.0.1-SNAPSHOT</version> <relativePath/> <!-- lookup parent from repository --> </parent> <groupId>com.dylan</groupId> <artifactId>service-demo</artifactId> <version>0.0.1-SNAPSHOT</version> <name>service-demo</name> <description>Demo project for Spring Boot</description> <properties> <java.version>1.8</java.version> <spring-cloud.version>Greenwich.SR2</spring-cloud.version> </properties> <dependencies> <dependency> <groupId>org.springframework.cloud</groupId> <artifactId>spring-cloud-starter-netflix-eureka-client</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>${spring-cloud.version}</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> </project>

配置application.yml文件

server: port: 8762 spring: application: name: service-demo eureka: client: serviceUrl: defaultZone: http://localhost:8761/eureka/

设置当前服务的注册中心,并且设置服务名称及使用端口.

配置ServiceDemoApplication

@SpringBootApplication @EnableEurekaClient @RestController public class ServiceDemoApplication { public static void main(String[] args) { SpringApplication.run(ServiceDemoApplication.class, args); } @Value("${server.port}") String port; @RequestMapping("/hi") public String home(@RequestParam(value = "name", defaultValue = "forezp") String name) { return "hi " + name + " ,i am from port:" + port; } }

加入EnableEurekaClient，表示当前服务为客户端服务.

RestController用于测试接口.

5.启动ServiceDemo服务

先启动Eureka（服务注册中心），再启动ServiceDemo服务。

访问http://localhost:8761

发现Service-demo注册成功。

调用Service-demo的接口:http://localhost:8762/hi?name=123456

说明接口也启动成功,服务注册成功.

 

 

SpringCloud初次搭建示例,到此为止。

附上GitHub地址:

https://github.com/yangqichang02/clound-flat.git

若有错误之处,请指出。谢谢!