一，springcloud配置管理
1，导入依赖
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-config-server</artifactId>
</dependency>
2，启动类中添加@EnableConfigServer注解
@SpringBootApplication
@EnableConfigServer
public class ConfigServerApplication {
public static void main(String[] args) {
SpringApplication.run(ConfigServerApplication.class, args);
}
}
3，添加配置信息
spring:
cloud:
config:
server:
git:
uri: http://xxxx.git
username: person
password: password
4,验证服务
http://localhost:8888/application/default
5，响应格式
{
"name": "application",
"profiles": ["default"],
"label": null,
"version": "0518243d74b0edf2e466134d76a1f879cfdffe3f",
"state": null,
"propertySources": []
}
6，client依赖
<dependency>
<groupId>org.springframework.cloud</groupId>
<artifactId>spring-cloud-starter-config</artifactId>
<version>1.4.0.RELEASE</version>
</dependency>
7，client指明依赖
server:
port: 7005
spring:
application:
name: cloud-config
cloud:
config:
#启动什么环境下的配置，dev 表示开发环境，这跟你仓库的文件的后缀有关，比如，仓库配置文件命名格式是cloud-config-dev.properties,所以profile 就要写dev
profile: dev#面向服务，允许被发现
discovery:
enabled: true
#这个名字是Config Server端的服务名字，不能瞎写。
service-id: config-server
8，配置使用
@RestController
//这里面的属性有可能会更新的，git中的配置中心变化的话就要刷新，没有这个注解内，配置就不能及时更新
@RefreshScope
public class TestController {
@Value("${name}")
private String name;
@Value("${age}")
private Integer age;
@RequestMapping("/test")
public String test(){
return this.name+this.age;
}
}
二、nacos配置管理
1，新建配置
2，配置依赖
<!--Nacos配置中心客户端依赖(与Eureka不同没有服务端)，在需要使用配置中心的模块才导入此依赖-->
<dependency>
<groupId>com.alibaba.cloud</groupId>
<artifactId>spring-cloud-starter-alibaba-nacos-config</artifactId>
</dependency>
3，配置nacos地址
server:
port: 7301 #项目端口号(boostrap.yml中配置后，可在 application.yml中不配置)
spring:
application:
name: nacos-config-client #应用名对应nacos配置中心的Data Id
cloud:
nacos:
discovery:
server-addr:127.0.0.1:8848 #指定nacos注册中心地址(boostrap.yml中配置后，可在application.yml中不配置)
config:
prefix:${spring.application.name} #不填写默认就是项目的应用名
server-addr:127.0.0.1:8848 #指定nacos配置中心地址
file-extension:yml #指定配置文件后缀名
4，配置使用
@RestController
//这里面的属性有可能会更新的，git中的配置中心变化的话就要刷新，没有这个注解内，配置就不能及时更新
@RefreshScope
public class TestController {
@Value("${name}")
private String name;
@Value("${age}")
private Integer age;
@RequestMapping("/test")
public String test(){
return this.name+this.age;
}
}
三、Apollo配置管理
1,新建配置
2，获取配置
Config config = ConfigService.getAppConfig();
Integer defaultRequestTimeout = 200;
Integer requestTimeout =
config.getIntProperty("request.timeout",defaultRequestTimeout);
动态配置：
Config config = ConfigService.getAppConfig();
config.addChangeListener(new ConfigChangeListener() {
@Override
public void onChange(ConfigChangeEvent changeEvent) {
for (String key : changeEvent.changedKeys()) {
ConfigChange change = changeEvent.getChange(key);
System.out.println(String.format(
"Found change - key: %s, oldValue: %s, newValue: %s, changeType: %s",
change.getPropertyName(), change.getOldValue(),
change.getNewValue(), change.getChangeType()));
}
}
});
3，springboot集成
@Configuration
@EnableApolloConfig
public class AppConfig {}
@Component
public class SomeBean {
@Value("${request.timeout:200}")
private int timeout;
@ApolloConfigChangeListener
private void someChangeHandler(ConfigChangeEvent changeEvent) {
if (changeEvent.isChanged("request.timeout")) {
refreshTimeout();
}
}
}
四、zookeeper配置管理
1，配置文件
package com.cwh.zk.util;
import java.io.Serializable;
public class Config implements Serializable{
/**
*
*/
private static final long serialVersionUID = 1L;
private String userNm;
private String userPw;
public Config() {
}
public Config(String userNm, String userPw) {
this.userNm = userNm;
this.userPw = userPw;
}
public String getUserNm() {
return userNm;
}
public void setUserNm(String userNm) {
this.userNm = userNm;
}
public String getUserPw() {
return userPw;
}
public void setUserPw(String userPw) {
this.userPw = userPw;
}
@Override
public String toString() {
return "Config [userNm=" + userNm + ", userPw=" + userPw + "]";
}
}
2，配置管理类
package com.cwh.zk.util;
import org.I0Itec.zkclient.ZkClient;
public class ZkConfigMag {
private Config config;
/**
* 从数据库加载配置
*/
public Config downLoadConfigFromDB(){
//getDB
config = new Config("nm", "pw");
return config;
}
/**
* 配置文件上传到数据库
*/
public void upLoadConfigToDB(String nm, String pw){
if(config==null)config = new Config();
config.setUserNm(nm);
config.setUserPw(pw);
//updateDB
}
/**
* 配置文件同步到zookeeper
*/
public void syncConfigToZk(){
ZkClient zk = new ZkClient("localhost:2181");
if(!zk.exists("/zkConfig")){
zk.createPersistent("/zkConfig",true);
}
zk.writeData("/zkConfig", config);
zk.close();
}
}
3，应用监听
package com.cwh.zk.util;
import org.I0Itec.zkclient.IZkDataListener;
import org.I0Itec.zkclient.ZkClient;
public class ZkGetConfigClient {
private Config config;
public Config getConfig() {
ZkClient zk = new ZkClient("localhost:2181");
config = (Config)zk.readData("/zkConfig");
System.out.println("加载到配置："+config.toString());
//监听配置文件修改
zk.subscribeDataChanges("/zkConfig", new IZkDataListener(){
@Override
public void handleDataChange(String arg0, Object arg1)
throws Exception {
config = (Config) arg1;
System.out.println("监听到配置文件被修改："+config.toString());
}
@Override
public void handleDataDeleted(String arg0) throws Exception {
config = null;
System.out.println("监听到配置文件被删除");
}
});
return config;
}
public static void main(String[] args) {
ZkGetConfigClient client = new ZkGetConfigClient();
client.getConfig();
System.out.println(client.config.toString());
for(int i = 0;i<10;i++){
System.out.println(client.config.toString());
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}
4，测试启动配置管理
package com.cwh.zkConfig.test;
import com.cwh.zk.util.Config;
import com.cwh.zk.util.ZkConfigMag;
public class ZkConfigTest {
public static void main(String[] args) {
ZkConfigMag mag = new ZkConfigMag();
Config config = mag.downLoadConfigFromDB();
System.out.println("....加载数据库配置...."+config.toString());
mag.syncConfigToZk();
System.out.println("....同步配置文件到zookeeper....");
//歇会，这样看比较清晰
try {
Thread.sleep(10000);
} catch (InterruptedException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
mag.upLoadConfigToDB("cwhcc", "passwordcc");
System.out.println("....修改配置文件...."+config.toString());
mag.syncConfigToZk();
System.out.println("....同步配置文件到zookeeper....");
}
}
