Spring Cloud Bus消息总线+rabbitmq+Gradle(Greenwich.RELEASE版本)
准备工作
环境以及版本:
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SpringBoot 2.1.3.RELEASE
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SpringCloud Greenwich.RELEASE
-
Jdk 1.8
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Gradle 5.2.1+
说明
以下改造均在子项目进行操作,父项目的github地址,下述需下载父项目用来管理公共依赖: https://github.com/cuifuan/springcloud-tools
1.改造你的 config-server
1.1 构建配置文件 build.gradle
dependencies { implementation "org.springframework.cloud:spring-cloud-config-server" implementation "org.springframework.cloud:spring-cloud-bus" implementation "org.springframework.cloud:spring-cloud-starter-bus-amqp" }
1.2 配置文件 application.yml
server:
port: 7001
spring:
application:
name: config-server
cloud:
config:
server:
git:
uri: git地址 #例如https://github.com/cuifuan/springcloud-configuration.git
search-paths: 仓库文件下文件夹
default-label: master
username: git账号
password: git密码
bus:
trace:
enabled: true
rabbitmq:
host: rabbitmq地址
port: 5672
username: rabbit账号【默认:guest】
password: rabbit密码【默认:guest】
virtual-host: /
eureka:
# 修改在服务中心的地址status为 ip+端口 【例如:10.0.0.100:88】
instance:
prefer-ip-address: true
instance-id: ${spring.cloud.client.ip-address}:${server.port}
client:
serviceUrl:
defaultZone: http://springcloud-tools:8761/eureka/
info:
app:
description: This is Spring Cloud remote Registration center.
name: tools-config-server
version: 0.0
management:
endpoint:
bus-refresh:
enabled: true
endpoints:
web:
exposure:
include: refresh,bus-refresh
1.3 启动类 ToolsConfigServerAppliaction.java
package store.zabbix.config; import org.springframework.boot.SpringApplication; import org.springframework.cloud.client.SpringCloudApplication; import org.springframework.cloud.config.server.EnableConfigServer; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RestController; @EnableConfigServer @SpringCloudApplication @RestController public class ToolsConfigServerAppliaction { public static void main(String[] args) { SpringApplication.run(ToolsConfigServerAppliaction.class, args); } @RequestMapping("/") public String home() { return "Hello World! My name is configserver."; } }
2. 改造你的 config-client (客户端)
用来读取配置文件的
2.1 构建配置文件 build.gradle
dependencies { implementation 'org.springframework.cloud:spring-cloud-starter-config' implementation "org.springframework.cloud:spring-cloud-bus" implementation "org.springframework.cloud:spring-cloud-starter-bus-amqp" }
2.2 配置文件 bootstrap.yml
spring:
cloud:
config:
name: tools-config-client #对应{application}部分
profile: dev #对应{profile}部分
#uri: http://localhost:8888/ #配置中心的具体地址
label: master #对应git的分支。如果配置中心使用的是本地存储,则该参数无用
discovery:
enabled: true #开启Config服务发现支持
service-id: config-server #指定配置中心的service-id,便于扩展为高可用配置集群。
eureka:
instance:
prefer-ip-address: true
instance-id: ${spring.cloud.client.ip-address}:${server.port}
client:
service-url:
defaultZone: http://springcloud-tools:8761/eureka/
2.2 配置文件 application.yml
server:
port: 7003
spring:
application:
name: tools-config-client
cloud:
config:
#配置重试机制
retry:
initial-interval: 2000
max-attempts: 2000
max-interval: 2000
multiplier: 1.2
fail-fast: true
bus:
#动态刷新配置
refresh:
enabled: true
#跟踪总线事件
trace:
enabled: true
rabbitmq:
host: rabbitmq地址
port: 5672
username: rabbit账号【默认:guest】
password: rabbit密码【默认:guest】
#配置actuator
# 1.X版本的springboot 配置: management.security.enabled=false 已经作废
#关闭安全认证
management:
endpoint:
bus-refresh:
enabled: true
#refresh接入点显式暴露出来
endpoints:
web:
exposure:
include: refresh,bus-refresh
2.3 启动类 ConfigClientApplication.java
注意:一定不要忘了加
@RefreshScop
注解
package store.zabbix.configreader; import org.springframework.beans.factory.annotation.Value; import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; import org.springframework.cloud.client.discovery.EnableDiscoveryClient; import org.springframework.cloud.context.config.annotation.RefreshScope; import org.springframework.web.bind.annotation.GetMapping; import org.springframework.web.bind.annotation.RestController; @SpringBootApplication @RestController @RefreshScope @EnableDiscoveryClient public class ConfigClientApplication { /** * http://localhost:8881/actuator/bus-refresh */ public static void main(String[] args) { SpringApplication.run(ConfigClientApplication.class, args); } @Value("${message}") String message; @GetMapping("/hello") public String getMessage(){ return message; } }
3.远程配置文件
4.操作流程
-
启动config-server
-
启动config-client
-
访问
http://127.0.0.1:7003/hello
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之后更改远程仓库配置文件,提交
-
访问
http://127.0.0.1:7003/hello
发现无变化 -
用postman做post请求
http://10.0.0.82:7001/actuator/bus-refresh
或者用curl -X POST http://10.0.0.82:7001/actuator/bus-refresh
-
再次访问http://127.0.0.1:7003/hello
这个时候的读取的配置文件已发生变化
5.需要注意的坑
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请确定你的rabbitmq是通的,guest账户无法通过远程ip访问
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注意上面的ip地址,我是这边测试使用,请更改成个人正确或者本地
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springboot2.x之后bus刷新地址更改为
/actuator/bus-refresh
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springboot和springcloud版本要一致,其他版本没试过