spring cloud 搭建(服务)
程序员文章站
2022-07-14 22:38:25
...
创建服务:(我们创建2个服务,service1和service2。操作是一样的)
选择Spring Initializr模板
选择Spring Cloud Discovery-->Eureka Discovery Client
pom文件(注意增加 spring-cloud-config-client )用来监听配置中心
<?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 https://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>2.2.5.RELEASE</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>com.test</groupId>
<artifactId>service1</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>service1</name>
<description>Demo project for Spring Boot</description>
<properties>
<java.version>1.8</java.version>
<spring-cloud.version>Hoxton.SR3</spring-cloud.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<!-- 配置中心的客户端 -->
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-config-client</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-commons</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
<exclusions>
<exclusion>
<groupId>org.junit.vintage</groupId>
<artifactId>junit-vintage-engine</artifactId>
</exclusion>
</exclusions>
</dependency>
</dependencies>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>${spring-cloud.version}</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
</plugin>
</plugins>
</build>
</project>
添加服务注解:@EnableEurekaClient
接着,我们创建一个controller文件夹,
并且创建TestController类
(service2也一样)
@RestController
@RequestMapping("test")
public class TestController {
@Value("${isDebug}")
private String isDebug;
@GetMapping(value = "/hello")
public String hello(){
return isDebug;
}
}
application.yml
server:
port: 9040
spring:
application:
name: service1
eureka:
client:
service-url:
defaultZone: ${registry.url}
instance:
lease-expiration-duration-in-seconds: 60
lease-renewal-interval-in-seconds: 30
preferIpAddress: true
instanceId: ${spring.cloud.client.ip-address}:${server.port}
bootstrap.yml(service2服务,我们选择prod作为配置文件)
spring:
http:
encoding:
charset: UTF-8
enabled: true
force: true
cloud:
config:
uri: http://${host:localhost}:9020
name: config
profile: ${active:dev}
# service2 我们采用prod的配置文件
# profile: ${active:prod}
然后,我们按照顺序启动。
1 注册中心,配置中心
2 service1,service2
eureka
我们看到,配置中心和服务都注册了。
我们访问服务
由于service1访问的是dev,
service2访问的是prod,
所以他们显示的信息不一样,这说明我们切换配置文件成功了。