一、介绍
(1)服务注册中心
(2)管理各个服务上的application.yml,支持动态修改,但不会影响客户端配置
(3)一般将application.yml文件放在git上,客户端通过http/https方式拉取
二、项目搭建
(1)建个远程仓库,创建两个配置文件application.yml
(2)编写pom.xml
<?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">
<parent>
<artifactId>demo20220821</artifactId>
<groupId>com.wsh.springcloud</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>cloud-config-config3344</artifactId>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-config-server</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<dependency>
<groupId>com.wsh.springcloud</groupId>
<artifactId>cloud-api-common</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
</project>
(3)编写application.yml文件
server:
port: 3344
spring:
application:
name: cloud-config-service
cloud:
config:
server:
git:
uri: https://gitee.com/xxx/config.git
label: master
eureka:
client:
# 客户端设置为true
register-with-eureka: true
# 客户端设置为true
fetch-registry: true
service-url:
# defaultZone: http://localhost:7001/eureka
defaultZone: http://eureka1.com:7001/eureka, http://eureka2.com:7002/eureka
instance:
instance-id: config3344
prefer-ip-address: true
(4)编写启动类
package com.wsh.springcloud;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.config.server.EnableConfigServer;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
/**
* @ClassName ConfigMain3344
* @Description: TODO
* @Author wshaha
* @Date 2023/10/15
* @Version V1.0
**/
@SpringBootApplication
@EnableEurekaClient
@EnableConfigServer
public class ConfigMain3344 {
public static void main(String[] args) {
SpringApplication.run(ConfigMain3344.class, args);
}
}
(5)运行
三、客户端读取
(1)application.yml是用户级的,bootstrap.yml是系统级的,优先级更高
(2)编写pom.xml
<?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">
<parent>
<artifactId>demo20220821</artifactId>
<groupId>com.wsh.springcloud</groupId>
<version>1.0-SNAPSHOT</version>
</parent>
<modelVersion>4.0.0</modelVersion>
<artifactId>cloud-config-client3355</artifactId>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-config</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-netflix-eureka-client</artifactId>
</dependency>
<dependency>
<groupId>com.wsh.springcloud</groupId>
<artifactId>cloud-api-common</artifactId>
<version>1.0-SNAPSHOT</version>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
</dependencies>
</project>
(3)编写bootstrap.yml
server:
port: 3355
spring:
application:
name: cloud-config-client-service
cloud:
config:
label: master #分支名
name: application # - 号前缀
profile: prod # - 号后缀
uri: http://localhost:3344 #配置中心地址
eureka:
client:
# 客户端设置为true
register-with-eureka: true
# 客户端设置为true
fetch-registry: true
service-url:
# defaultZone: http://localhost:7001/eureka
defaultZone: http://eureka1.com:7001/eureka, http://eureka2.com:7002/eureka
instance:
instance-id: configClient3355
prefer-ip-address: true
(4)编写启动类
package com.wsh.springcloud;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.netflix.eureka.EnableEurekaClient;
/**
* @ClassName ConfigMain3344
* @Description: TODO
* @Author wshaha
* @Date 2023/10/15
* @Version V1.0
**/
@SpringBootApplication
@EnableEurekaClient
public class ConfigClientMain3355{
public static void main(String[] args) {
SpringApplication.run(ConfigClientMain3355.class, args);
}
}
(5)编写Controller
package com.wsh.springcloud.controller;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;
/**
* @ClassName ConfigClientController
* @Description: TODO
* @Author wshaha
* @Date 2023/10/15
* @Version V1.0
**/
@RestController
public class ConfigClientController {
@Value("${teset.name}")
private String name;
@RequestMapping("/getConfig")
public String getConfig(){
return name;
}
}
(6)运行
四、手动刷新客户端配置
(1)暴露actuator
server:
port: 3355
spring:
application:
name: cloud-config-client-service
cloud:
config:
label: master #分支名
name: application # - 号前缀
profile: prod # - 号后缀
uri: http://localhost:3344 #配置中心地址
eureka:
client:
# 客户端设置为true
register-with-eureka: true
# 客户端设置为true
fetch-registry: true
service-url:
# defaultZone: http://localhost:7001/eureka
defaultZone: http://eureka1.com:7001/eureka, http://eureka2.com:7002/eureka
instance:
instance-id: configClient3355
prefer-ip-address: true
management:
endpoints:
web:
exposure:
include: "*"
(2)Controller增加注解@RefreshScope
package com.wsh.springcloud.controller;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.cloud.context.config.annotation.RefreshScope;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
/**
* @ClassName ConfigClientController
* @Description: TODO
* @Author wshaha
* @Date 2023/10/15
* @Version V1.0
**/
@RestController
@RefreshScope
public class ConfigClientController {
@Value("${teset.name}")
private String name;
@RequestMapping("/getConfig")
public String getConfig(){
return name;
}
}
(3)执行命令,必须是POST请求
curl -X POST "http://localhost:3355/actuator/refresh"