Spring Cloud Admin健康检查 邮件、钉钉群通知的实现

<!-- 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=****

<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

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);
	  }
}

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());
    });
  }
}

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();
    }
  }
}

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;
  }
}