源码地址:https://github.com/muxiaonong/Spring-Cloud/tree/master/cloudadmin
官方文档:What is Spring Boot Admin?
SpringBootAdmin是一个用于管理和监控SpringBoot微服务的社区项目,可以使用客户端注册或者Eureka服务发现向服务端提供监控信息。 注意,服务端相当于提供UI界面,实际的监控信息由客户端Actuator提供 通过SpringBootAdmin,你可以通过华丽大气的界面访问到整个微服务需要的监控信息,例如服务健康检查信息、CPU、内存、操作系统信息等等
本篇文章使用SpringBoot 2.3.3.RELEASE、SpringCloud Hoxton.SR6、SpringBoot Admin 2.2.3版本,此外,服务注册中心采用eureka
<!-- Admin 服务 -->
<dependency>
<groupId>de.codecentric</groupId>
<artifactId>spring-boot-admin-starter-server</artifactId>
<version>2.2.1</version>
</dependency>
<!-- Admin 界面 -->
<dependency>
<groupId>de.codecentric</groupId>
<artifactId>spring-boot-admin-server-ui</artifactId>
<version>2.2.1</version>
</dependency>
@SpringBootApplication
@EnableAdminServer
public class AdminTestApplication {
public static void main(String[] args) {
SpringApplication.run(AdminTestApplication.class, args);
}
}
spring.application.name=admin-test
management.endpoints.jmx.exposure.include=*
management.endpoints.web.exposure.include=*
management.endpoint.health.show-details=always
# spring cloud access&secret config
alibaba.cloud.access-key=****
alibaba.cloud.secret-key=****
输入项目地址:http://localhost:8080/applications
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-mail</artifactId>
</dependency>
spring.mail.host=smtp.qq.com
spring.mail.username=单纯QQ号
spring.mail.password=授权码
spring.mail.properties.mail.smpt.auth=true
spring.mail.properties.mail.smpt.starttls.enable=true
spring.mail.properties.mail.smpt.starttls.required=true
#收件邮箱
spring.boot.admin.notify.mail.to=xxxx@qq.com
# 发件邮箱
spring.boot.admin.notify.mail.from= xxxx@qq.com
找到自己的QQ邮箱
QQ邮箱 》 设置 》 账户 》红框处获取 授权码
我们将 consumer 服务下线后,
接着我们就收到了邮件通知,告诉我们服务关闭了
找到群里面的 群设置 》 智能群助手 》 添加机器人
注意:这里的自定义关键词一定要和项目的关键字匹配
获取 Webhook 到项目中,这个是后面要使用到的
启动类:
import org.springframework.boot.SpringApplication;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.context.annotation.Bean;
import de.codecentric.boot.admin.server.config.EnableAdminServer;
import de.codecentric.boot.admin.server.domain.entities.InstanceRepository;
@SpringBootApplication
@EnableAdminServer
public class AdminApplication {
public static void main(String[] args) {
SpringApplication.run(AdminApplication.class, args);
}
@Bean
public DingDingNotifier dingDingNotifier(InstanceRepository repository) {
return new DingDingNotifier(repository);
}
}
通知类:
import java.util.Map;
import com.alibaba.fastjson.JSONObject;
import de.codecentric.boot.admin.server.domain.entities.Instance;
import de.codecentric.boot.admin.server.domain.entities.InstanceRepository;
import de.codecentric.boot.admin.server.domain.events.InstanceEvent;
import de.codecentric.boot.admin.server.notify.AbstractStatusChangeNotifier;
import reactor.core.publisher.Mono;
public class DingDingNotifier extends AbstractStatusChangeNotifier {
public DingDingNotifier(InstanceRepository repository) {
super(repository);
}
@Override
protected Mono<Void> doNotify(InstanceEvent event, Instance instance) {
String serviceName = instance.getRegistration().getName();
String serviceUrl = instance.getRegistration().getServiceUrl();
String status = instance.getStatusInfo().getStatus();
Map<String, Object> details = instance.getStatusInfo().getDetails();
StringBuilder str = new StringBuilder();
str.append("服务预警 : 【" + serviceName + "】");
str.append("【服务地址】" + serviceUrl);
str.append("【状态】" + status);
str.append("【详情】" + JSONObject.toJSONString(details));
return Mono.fromRunnable(() -> {
DingDingMessageUtil.sendTextMessage(str.toString());
});
}
}
发送工具类
import java.io.InputStream;
import java.io.OutputStream;
import java.net.HttpURLConnection;
import java.net.URL;
import com.alibaba.fastjson.JSONObject;
public class DingDingMessageUtil {
public static String access_token = "Token";
public static void sendTextMessage(String msg) {
try {
Message message = new Message();
message.setMsgtype("text");
message.setText(new MessageInfo(msg));
URL url = new URL("https://oapi.dingtalk.com/robot/send?access_token=" + access_token);
// 建立 http 连接
HttpURLConnection conn = (HttpURLConnection) url.openConnection();
conn.setDoOutput(true);
conn.setDoInput(true);
conn.setUseCaches(false);
conn.setRequestMethod("POST");
conn.setRequestProperty("Charset", "UTF-8");
conn.setRequestProperty("Content-Type", "application/Json; charset=UTF-8");
conn.connect();
OutputStream out = conn.getOutputStream();
String textMessage = JSONObject.toJSONString(message);
byte[] data = textMessage.getBytes();
out.write(data);
out.flush();
out.close();
InputStream in = conn.getInputStream();
byte[] data1 = new byte[in.available()];
in.read(data1);
System.out.println(new String(data1));
} catch (Exception e) {
e.printStackTrace();
}
}
}
消息类:
public class Message {
private String msgtype;
private MessageInfo text;
public String getMsgtype() {
return msgtype;
}
public void setMsgtype(String msgtype) {
this.msgtype = msgtype;
}
public MessageInfo getText() {
return text;
}
public void setText(MessageInfo text) {
this.text = text;
}
}
public class MessageInfo {
private String content;
public MessageInfo(String content) {
this.content = content;
}
public String getContent() {
return content;
}
public void setContent(String content) {
this.content = content;
}
}
我们下线一个服务后,就可以看到钉钉群就发了消息的通知
同时,当我们启动服务的时候,也会有消息通知我们服务启动了
上面就是我们对admin 健康检查的实际应用,在企业中一般会有短信通知+钉钉群通知和邮件,感兴趣的小伙伴可以去试试看,还是挺好玩的,还有一个就是微信通知,在服务号 模板消息感兴趣的小伙伴可以自行去研究看看,大家加油~