5.Rabbitmq Routing
【摘要】 前言Routing模式通过routingKey,决定发送和接收路径架构如下:代码build.gradleplugins { id 'java'}group 'com.nick'version '1.0-SNAPSHOT'sourceCompatibility = 1.8repositories { mavenCentral()}dependencies { testComp...
前言
Routing模式通过routingKey,决定发送和接收路径架构如下:
代码
build.gradle
plugins {
id 'java'}
group 'com.nick'version '1.0-SNAPSHOT'sourceCompatibility = 1.8
repositories {
mavenCentral()
}
dependencies {
testCompile group: 'junit', name: 'junit', version: '4.12'
compile group: 'com.rabbitmq', name: 'amqp-client', version: '5.2.0'
compile group: 'org.slf4j', name: 'slf4j-api', version: '1.7.25'
compile group: 'org.slf4j', name: 'slf4j-simple', version: '1.7.25'
compile group: 'org.projectlombok', name: 'lombok', version: '1.18.0'}
ReceiveLogsDirect.java
package com.nick.Routing;import com.rabbitmq.client.*;import java.io.IOException;public class ReceiveLogsDirect { private static final String EXCHANGE_NAME = "direct_logs"; public static void main(String[] argv) throws Exception {
ConnectionFactory factory = new ConnectionFactory();
factory.setHost("192.168.5.136");
Connection connection = factory.newConnection();
Channel channel = connection.createChannel();
channel.exchangeDeclare(EXCHANGE_NAME, "direct");
String queueName = channel.queueDeclare().getQueue();
channel.queueBind(queueName, EXCHANGE_NAME, "ERROR");
channel.queueBind(queueName, EXCHANGE_NAME, "INFO");
System.out.println(" [*] Waiting for messages. To exit press CTRL+C");
Consumer consumer = new DefaultConsumer(channel) { @Override
public void handleDelivery(String consumerTag, Envelope envelope,
AMQP.BasicProperties properties, byte[] body) throws IOException {
String message = new String(body, "UTF-8");
System.out.println(" [x] Received '" + envelope.getRoutingKey() + "':'" + message + "'");
}
};
channel.basicConsume(queueName, true, consumer);
}
}
EmitDebugLogDirect.java
package com.nick.Routing;import com.rabbitmq.client.Channel;import com.rabbitmq.client.Connection;import com.rabbitmq.client.ConnectionFactory;import java.util.concurrent.TimeoutException;public class EmitDebugLogDirect { private static final String EXCHANGE_NAME = "direct_logs"; public static void main(String[] argv)
throws java.io.IOException, TimeoutException {
ConnectionFactory factory = new ConnectionFactory();
factory.setHost("192.168.5.136");
Connection connection = factory.newConnection();
Channel channel = connection.createChannel();
channel.exchangeDeclare(EXCHANGE_NAME, "direct");
String severity = "DEBUG";
String message = "debug message";
channel.basicPublish(EXCHANGE_NAME, severity, null, message.getBytes());
System.out.println(" [x] Sent '" + severity + "':'" + message + "'");
channel.close();
connection.close();
}
}
EmitErrorLogDirect.java
package com.nick.Routing;import com.rabbitmq.client.Channel;import com.rabbitmq.client.Connection;import com.rabbitmq.client.ConnectionFactory;import java.util.concurrent.TimeoutException;public class EmitErrorLogDirect { private static final String EXCHANGE_NAME = "direct_logs"; public static void main(String[] argv)
throws java.io.IOException, TimeoutException {
ConnectionFactory factory = new ConnectionFactory();
factory.setHost("192.168.5.136");
Connection connection = factory.newConnection();
Channel channel = connection.createChannel();
channel.exchangeDeclare(EXCHANGE_NAME, "direct");
String severity = "ERROR";
String message = "error message";
channel.basicPublish(EXCHANGE_NAME, severity, null, message.getBytes());
System.out.println(" [x] Sent '" + severity + "':'" + message + "'");
channel.close();
connection.close();
}
}
测试
先执行接收;
分别执行发送debug和error;
在接收窗口上可以看到error消息有收到,debug接收不到;
完整代码
https://github.com/qiujiahong/rabbitmq_study
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