使用JAVA实现RabbitMQ的发送告警
发布时间:2020-05-28 22:53:25 所属栏目:Java 来源:互联网
导读:使用JAVA实现RabbitMQ的发送告警
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下面是脚本之家 jb51.cc 通过网络收集整理的代码片段。 脚本之家小编现在分享给大家,也给大家做个参考。 基于rabbitmq实战4.2章节发送即忘模型,书上是使用PiPa库完成,这里使用java实现package com.rayootech.rabbitmq.demo.inaction.alertwarning;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;
public class AlertWarningProducer {
private static final String EXCHANGE_NAME = "alerts";
private static final String ROUTING_KEY = "critical.alert";
public static void main(String[] argv) {
Connection connection = null;
Channel channel = null;
try {
ConnectionFactory factory = new ConnectionFactory();
factory.setHost("rabbitmq128");
factory.setUsername("admin");
factory.setPassword("admin");
factory.setPort(5672);
connection = factory.newConnection();
channel = connection.createChannel();
channel.exchangeDeclare(EXCHANGE_NAME,"topic",true);
String message = "critical content!!!";
channel.basicPublish(EXCHANGE_NAME,ROUTING_KEY,null,message.getBytes());
System.out.println(" [x] Sent '" + ROUTING_KEY + "':'" + message + "'");
}
catch (Exception e) {
e.printStackTrace();
}
finally {
if (connection != null) {
try {
connection.close();
}
catch (Exception ignore) {}
}
}
}
}
import com.rabbitmq.client.*;
import javax.mail.*;
import javax.mail.Message.RecipientType;
import javax.mail.internet.InternetAddress;
import javax.mail.internet.MimeMessage;
import java.io.IOException;
import java.util.Properties;
import java.util.concurrent.TimeoutException;
public class AlertWarningConsumer {
private final static String EMAIL_RECIPIENTS="********@163.com";//接收者邮箱
private final static String EMAIL_SENDER="********@163.com";//发送者邮箱
private final static String EXCHANGE="alerts";//topic类型交换器
private final static String TYPE="topic";
private final static String QUEUE1="critical";
private final static String QUEUE2="rate_limt";
private final static String ROUTING_KEY1="critical.*";
private final static String ROUTING_KEY2="*.rate_limt";
/**
*
* @param recipients 接收人
* @param subject 发送主题
* @param msg 发送消息内容
* @throws IOException
* @throws MessagingException
*/
public static void sendEmail(String recipients,String subject,Object msg) throws IOException,MessagingException {
final Properties props = new Properties();
/*
* 可用的属性: mail.store.protocol / mail.transport.protocol / mail.host /
* mail.user / mail.from
*/
// 表示SMTP发送邮件,需要进行身份验证
props.put("mail.smtp.auth","true");
props.put("mail.smtp.host","smtp.163.com");
// 发件人的账号
props.put("mail.user",EMAIL_SENDER);
// 访问SMTP服务时需要提供的密码
props.put("mail.password","*******");
// 构建授权信息,用于进行SMTP进行身份验证
Authenticator authenticator = new Authenticator() {
@Override
protected PasswordAuthentication getPasswordAuthentication() {
// 用户名、密码
String userName = props.getProperty("mail.user");
String password = props.getProperty("mail.password");
return new PasswordAuthentication(userName,password);
}
};
// 使用环境属性和授权信息,创建邮件会话
Session mailSession = Session.getInstance(props,authenticator);
// 创建邮件消息
MimeMessage message = new MimeMessage(mailSession);
// 设置发件人
InternetAddress form = new InternetAddress(
props.getProperty("mail.user"));
message.setFrom(form);
// 设置收件人
InternetAddress to = new InternetAddress(recipients);
message.setRecipient(RecipientType.TO,to);
// 设置邮件标题
message.setSubject(subject);
// 设置邮件的内容体{"message":"告警消息邮件发送"}
message.setContent(msg,"application/json;charset=UTF-8");
// 发送邮件
Transport.send(message);
}
public static void main(String[] args) {
ConnectionFactory factory = new ConnectionFactory();
Connection connection = null;
try {
factory.setPort(5672);
factory.setHost("rabbitmq128");
factory.setUsername("admin");
factory.setPassword("admin");
connection = factory.newConnection();
//创建连接
final Channel channel = connection.createChannel();
//声明交换器队列绑定等信息
channel.exchangeDeclare(EXCHANGE,TYPE,true);
channel.queueDeclare(QUEUE1,false,null);
channel.queueBind(QUEUE1,EXCHANGE,ROUTING_KEY1);
channel.queueDeclare(QUEUE2,null);
channel.queueBind(QUEUE2,ROUTING_KEY2);
Consumer rate_limit_notify = new DefaultConsumer(channel){
@Override
public void handleDelivery(String consumerTag,Envelope envelope,AMQP.BasicProperties properties,byte[] body) throws IOException {
String subject = "rate_limit Alert";
String msg = new String(body,"UTF-8");
try {
sendEmail(EMAIL_RECIPIENTS,subject,msg);
} catch (MessagingException e) {
e.printStackTrace();
}
System.out.println("send alert E-mail!Alert text:Recipients: " + EMAIL_RECIPIENTS+" subject: "+subject);
channel.basicAck(envelope.getDeliveryTag(),false);
}
};
Consumer critical_notify = new DefaultConsumer(channel){
@Override
public void handleDelivery(String consumerTag,byte[] body) throws IOException {
String subject = "Critical Alert";
String msg = new String(body,false);
}
};
//消息消费
channel.basicConsume(QUEUE1,"critical",critical_notify);
channel.basicConsume(QUEUE2,"rate_limit",rate_limit_notify);
} catch (IOException e) {
e.printStackTrace();
} catch (TimeoutException e) {
e.printStackTrace();
}
}
}
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