1 快速demo

1.0 环境说明

  Intelli IDEA+Spring Boot

1.1 新建工程chap52（通过New Project->Spring Initializer->web）

修改pom文件：

com.chen4du
chap52
0.0.1-SNAPSHOT
pom

chap52
Demo project for Spring Boot


org.springframework.boot
spring-boot-starter-parent
1.5.2.RELEASE


<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>Dalston.SR1</spring-cloud.version>




org.springframework.cloud
spring-cloud-dependencies
${spring-cloud.version}
pom
import


1.2 新建module：eurekaserver（通过New Project->Spring Initializer->web），修改pom文件


com.chen4du
chap52
0.0.1-SNAPSHOT


<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>



org.springframework.cloud
spring-cloud-starter-eureka-server


org.springframework.boot
spring-boot-starter-test
test


添加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/
为EurekaserverApplication文件添加注解

@EnableEurekaServer
@SpringBootApplication
public class EurekaserverApplication {

public static void main(String[] args) {

SpringApplication.run(EurekaserverApplication.class, args);
}
}

1.3 新建module：eurekaclient（通过New Project->Spring Initializer->web），修改pom文件


com.chen4du
chap52
0.0.1-SNAPSHOT


<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<project.reporting.outputEncoding>UTF-8</project.reporting.outputEncoding>
<java.version>1.8</java.version>



org.springframework.cloud
spring-cloud-starter-eureka


org.springframework.boot
spring-boot-starter-web


org.springframework.boot
spring-boot-starter-test
test


添加文件bootstrap.yml

eureka:
client:
serviceUrl:
defaultZopne: http://localhost:8761/eureka/
server:
port: 8762
spring:
application:
name: eureka-client
为EurekaclientApplication添加注解

@SpringBootApplication
@EnableEurekaClient
public class EurekaclientApplication {

public static void main(String[] args) {
SpringApplication.run(EurekaclientApplication.class, args);
}
}

1.4 调试

运行EurekaserverApplication，访问http:localhost:8761
运行EurekaclientApplication，访问http:localhost:8761 可以看到服务已注册

2 排坑之旅

2.1 注解添加无效

开始以为是包之间冲突，各种调版本，后来发现是因为chap52的pom文件中打包方式有误，默认是jar，要改成pom，后续子模块才能依赖到父模块的包

2.2 yml文件格式

注意value和key之间有个空格，勿丢。