SpringCloudConfig使用总结【分布式配置】

一：开发前准备：

1、搭建ZK  

    启动命令：zkServer.sh start

2、搭建Kafka或rabbitmq   

    

    kafka启动命令：bin/kafka-server-start.sh  config/server.properties &

3、搭建git,这里直接用了github

    

    https://github.com/DearGongQi/testspringcloud

二：Service端：

1、pom文件里加入：

<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.9.RELEASE</version>
</parent>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Edgware.RELEASE</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>

<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-config-server</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-config-monitor</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-bus-kafka</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-actuator</artifactId>
</dependency>
</dependencies>

2、创建application.properties

#git地址可以换成svn
spring.cloud.config.server.git.uri=https://github.com/DearGongQi/testspringcloud.git
#在配置的文件名字下查找
spring.cloud.config.server.git.searchPaths=wmbusapi

#kafka地址，可以好用rabbitmq代替
spring.cloud.stream.kafka.binder.brokers=192.168.54.152:9092
#kafka需要的zk地址
spring.cloud.stream.kafka.binder.zk-nodes=192.168.54.152:2181

3、ConfigServerApplication.java

    添加EnableConfigServer 表示这是一个springcloudconfigserver

import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.config.server.EnableConfigServer;

/**
* Created by IntelliJ IDEA.
* User: GongQi
* Date: 2017/12/11
*/
@SpringBootApplication
@EnableConfigServer
public class ConfigServerApplication {

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

三：Client端

1、在pom文件中加入：

<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>1.5.9.RELEASE</version>
</parent>
<dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-dependencies</artifactId>
<version>Edgware.RELEASE</version>
<type>pom</type>
<scope>import</scope>
</dependency>
</dependencies>
</dependencyManagement>
<dependencies>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-config</artifactId>
</dependency>
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-bus-kafka</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-actuator</artifactId>
</dependency>
</dependencies>

2、ConfigClientApplication

import org.springframework.beans.factory.annotation.Value;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.cloud.context.config.annotation.RefreshScope;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

/**
* Created by IntelliJ IDEA.
* User: GongQi
* Date: 2017/12/11
*/
@SpringBootApplication
@RestController
@RefreshScope
public class ConfigClientApplication {

@Value("${cache.couchbase.servers}")
private String name;

@RequestMapping("/")
public String home() {
System.out.println(name);
return name;
}

public static void main(String[] args) {

SpringApplication.run(ConfigClientApplication.class, args);

}

public String getName() {
return name;
}

public void setName(String name) {
this.name = name;
}
}

3、创建bootstrap.properties

#远程配置中心地址
spring.cloud.config.uri=http://127.0.0.1:8080
#配置中心中对应的application
spring.cloud.config.name=EtradeConfig
#当前环境，可通过启动脚本设置参数来控制
spring.cloud.config.profile=dev

spring.cloud.stream.kafka.binder.brokers=192.168.54.152:9092
spring.cloud.stream.kafka.binder.zk-nodes=192.168.54.152:2181

server.port=8888
#不校验验证，不然401
management.security.enabled=false

四：启动

分别启动对应的main方法即可

五：说明

    1、客户端启动后通过浏览器可以访问，看到返回的地址是配置文件里的。

    2、可以通过post请求：(通过postman发起)

        

            http://localhost:8888/env   参数：cache.couchbase.servers:192.168.1.1可以修改对客户端节点的参数配置

    3、修改参数后不会立即生效，可以通过pos请求：http://localhost:8888/refresh ，来刷新对应客户端的配置。再访问客户端，配置文件就动态修改了。

    注意：这里是访问客户端来刷配置，如果需要对所有节点生效可以访问配置中心服务端：http://localhost:8080/bus/env 来修改所有节点配置、用http://localhost:8080/bus/refresh 来更新所有节点