01: Work Queue工作队列模式
//接口所有的属性都是静态常量属性
public interface RabbitContent {
//队列
String QEUEU_HELLO = "hello";
String QUEUE_WORKING ="working";
String QUEUE_BAIDU ="baidu";
String QUEUE_SINA ="sina";
//交换机
String CHANGE_WEATHER="weather";
String CHANGE_ROUTING="weather_routing";
String CHANGE_TOPIC="weather_topic";
}
SMS:
public class SMS implements Serializable {
private static final long serialVersionUID = 3185271845751784313L;
private String name;
private String phone;
private String content;
//+ get/set 无参带参构造方法
}
WorkProducer:
package cpm.pb.working;
import com.google.gson.Gson;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import cpm.pb.test.utils.RabbitContent;
import cpm.pb.test.utils.RabbitUtils;
import java.io.IOException;
public class WorkProducer {
public static void main(String[] args) throws Exception {
Connection connection = RabbitUtils.getConnection();
Channel channel = connection.createChannel();
channel.queueDeclare(RabbitContent.QUEUE_WORKING, false, false, false, null);
//在这里面我们共发送200条消息
for(int i = 1; i <=200; i++) {
SMS sms = new SMS("admin"+i, "12345678976"+i, "购票成功");
//把对象转换成字符串
//JSONlib fastJson Jankson, gson
String s = new Gson().toJson(sms);
//System.out.println(s);
//发送消息
channel.basicPublish("", RabbitContent.QUEUE_WORKING, null, s.getBytes());
}
System.out.println("消息发送成功...");
channel.close();
connection.close();
}
}
运行:
消费者1:
SMSOrder1:
public class SMSOrder1 {
public static void main(String[] args) throws Exception {
Connection connection = RabbitUtils.getConnection();
Channel channel = connection.createChannel();
channel.queueDeclare(RabbitContent.QUEUE_WORKING, false, false, false, null);
channel.basicQos(1); //排队
channel.basicConsume(RabbitContent.QUEUE_WORKING, false, new DefaultConsumer(channel){
@Override
public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
System.out.println("SMSOrder1收到消息: " + new String(body));
//签收
channel.basicAck(envelope.getDeliveryTag(), false);
}
});
}
}
赋值三个 三个消费者 SMSOrder1: SMSOrder2: SMSOrder3
分别运行:
让每个消费者 做延迟:
try {
Thread.sleep(20);
} catch (InterruptedException e) {
e.printStackTrace();
}
channel.basicAck(envelope.getDeliveryTag(), false);
每个消费者会消费不同的消息:
发布(publish)/订阅(Subscribe)模式:
Weather.Java:
/**
* 气象局[供应商和应用商操作]
*/
public class Weather {
public static void main(String[] args) throws Exception {
//这里我们不创建队列
//只创建交换机
Connection connection = RabbitUtils.getConnection();
Channel channel = connection.createChannel();
//创建Fanout类型的交换机
channel.exchangeDeclare(RabbitContent.CHANGE_WEATHER, BuiltinExchangeType.FANOUT,false,false,false, null);
//发送消息我们把数据送入先关的交换机
channel.basicPublish(RabbitContent.CHANGE_WEATHER, "",null, "北京38°晴转阴".getBytes());
channel.close();
connection.close();
}
}
Baidu.java:
public class Baidu {
public static void main(String[] args) throws Exception {
//这里我们不创建队列
//只创建交换机
Connection connection = RabbitUtils.getConnection();
Channel channel = connection.createChannel();
channel.queueDeclare(RabbitContent.QUEUE_BAIDU,false,false, false, null);
//交换机和队列进行绑定*****************
channel.queueBind(RabbitContent.QUEUE_BAIDU, RabbitContent.CHANGE_WEATHER,"");
channel.basicConsume(RabbitContent.QUEUE_BAIDU, false, new DefaultConsumer(channel) {
@Override
public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
System.out.println("百度收到消息:" + new String(body));
channel.basicAck(envelope.getDeliveryTag(), false);
}
});
}
}
Sina.java:
public class Sina {
public static void main(String[] args) throws Exception {
//这里我们不创建队列
//只创建交换机
Connection connection = RabbitUtils.getConnection();
Channel channel = connection.createChannel();
channel.queueDeclare(RabbitContent.QUEUE_SINA,false,false, false, null);
//交换机和队列进行绑定
channel.queueBind(RabbitContent.QUEUE_SINA, RabbitContent.CHANGE_WEATHER, "");
channel.basicConsume(RabbitContent.QUEUE_SINA, false, new DefaultConsumer(channel) {
@Override
public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
System.out.println("新浪收到消息:" + new String(body));
channel.basicAck(envelope.getDeliveryTag(), false);
}
});
}
}
路由Routing模式:
手动添加一个交换机
Baidu.java:
public class Baidu {
public static void main(String[] args) throws Exception {
//这里我们不创建队列
//只创建交换机
Connection connection = RabbitUtils.getConnection();
Channel channel = connection.createChannel();
channel.queueDeclare(RabbitContent.QUEUE_BAIDU,false,false, false, null);
channel.queueBind(RabbitContent.QUEUE_BAIDU, RabbitContent.CHANGE_ROUTING, "china.henan.zhengzhou.20991011");
channel.basicConsume(RabbitContent.QUEUE_BAIDU, false, new DefaultConsumer(channel) {
@Override
public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
System.out.println("百度收到了消息:" + new String(body));
channel.basicAck(envelope.getDeliveryTag(),false);
}
});
}
}
Sina.java:
public class Sina {
public static void main(String[] args) throws Exception {
//这里我们不创建队列
//只创建交换机
Connection connection = RabbitUtils.getConnection();
Channel channel = connection.createChannel();
channel.queueDeclare(RabbitContent.QUEUE_SINA,false,false, false, null);
channel.queueBind(RabbitContent.QUEUE_SINA, RabbitContent.CHANGE_ROUTING, "us.cal.la.20991012");
channel.basicConsume(RabbitContent.QUEUE_SINA, false, new DefaultConsumer(channel) {
@Override
public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
System.out.println("新浪收到了消息:" + new String(body));
channel.basicAck(envelope.getDeliveryTag(),false);
}
});
}
}
主题Topic模式(常用):
TopicProducer.java:
public class TopicProducer {
public static void main(String[] args) throws Exception {
//这里我们不创建队列
//只创建交换机
Connection connection = RabbitUtils.getConnection();
Channel channel = connection.createChannel();
Map<String, String> area = new LinkedHashMap<String, String>();
area.put("china.hebei.shijiazhuang.20991011", "中国河北石家庄20991011天气数据");
area.put("china.shandong.qingdao.20991011", "中国山东青岛20991011天气数据");
area.put("china.henan.zhengzhou.20991011", "中国河南郑州20991011天气数据");
area.put("us.cal.la.20991011", "美国加州洛杉矶20991011天气数据");
area.put("china.hebei.shijiazhuang.20991012", "中国河北石家庄20991012天气数据");
area.put("china.shandong.qingdao.20991012", "中国山东青岛20991012天气数据");
area.put("china.henan.zhengzhou.20991012", "中国河南郑州20991012天气数据");
area.put("us.cal.la.20991012", "美国加州洛杉矶20991012天气数据");
//发送数据
Iterator<Map.Entry<String, String>> iterator = area.entrySet().iterator();
while(iterator.hasNext()) {
Map.Entry<String, String> next = iterator.next();
//发送数据
channel.basicPublish(RabbitContent.CHANGE_TOPIC, next.getKey(), true, null, next.getValue().getBytes());
}
System.out.println("消息发送成功");
//channel.close();
//connection.close();
}
}
Baidu.java:
public class Baidu {
public static void main(String[] args) throws Exception {
//这里我们不创建队列
//只创建交换机
Connection connection = RabbitUtils.getConnection();
Channel channel = connection.createChannel();
channel.queueDeclare(RabbitContent.QUEUE_BAIDU,false,false, false, null);
channel.queueBind(RabbitContent.QUEUE_BAIDU, RabbitContent.CHANGE_TOPIC, "china.#");
channel.basicConsume(RabbitContent.QUEUE_BAIDU, false, new DefaultConsumer(channel) {
@Override
public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
System.out.println("百度收到了消息:" + new String(body));
channel.basicAck(envelope.getDeliveryTag(),false);
}
});
}
}
Sina.java:
public class Sina {
public static void main(String[] args) throws Exception {
//这里我们不创建队列
//只创建交换机
Connection connection = RabbitUtils.getConnection();
Channel channel = connection.createChannel();
channel.queueDeclare(RabbitContent.QUEUE_SINA,false,false, false, null);
channel.queueBind(RabbitContent.QUEUE_SINA, RabbitContent.CHANGE_TOPIC, "us.*.*.*");
channel.basicConsume(RabbitContent.QUEUE_SINA, false, new DefaultConsumer(channel) {
@Override
public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
System.out.println("新浪收到了消息:" + new String(body));
channel.basicAck(envelope.getDeliveryTag(),false);
}
});
}
}
MQ的消息确认机制 Confirm&return 与消费者没有关系
TopicProducer.java:
public class TopicProducer {
public static void main(String[] args) throws Exception {
//这里我们不创建队列
//只创建交换机
Connection connection = RabbitUtils.getConnection();
Channel channel = connection.createChannel();
Map<String, String> area = new LinkedHashMap<String, String>();
area.put("china.hebei.shijiazhuang.20991011", "中国河北石家庄20991011天气数据");
area.put("china.shandong.qingdao.20991011", "中国山东青岛20991011天气数据");
area.put("china.henan.zhengzhou.20991011", "中国河南郑州20991011天气数据");
area.put("us.cal.la.20991011", "美国加州洛杉矶20991011天气数据");
area.put("china.hebei.shijiazhuang.20991012", "中国河北石家庄20991012天气数据");
area.put("china.shandong.qingdao.20991012", "中国山东青岛20991012天气数据");
area.put("china.henan.zhengzhou.20991012", "中国河南郑州20991012天气数据");
area.put("us.cal.la.20991012", "美国加州洛杉矶20991012天气数据");
channel.confirmSelect(); //开启监听事件
channel.addConfirmListener(new ConfirmListener() {
//消息被mq接受,状态
@Override
public void handleAck(long deliveryTag, boolean multiple) throws IOException {
System.out.println("消息被mq接受:" + deliveryTag + "-----" + multiple);
}
//消息被mq举手的状态
@Override
public void handleNack(long deliveryTag, boolean multiple) throws IOException {
System.out.println("消息被mq拒收:" + deliveryTag + "-----" + multiple);
}
});
//消息返回操作
channel.addReturnListener(new ReturnCallback() {
@Override
public void handle(Return msg) {
System.out.println("返回消息的状态吗" + msg.getReplyCode());
System.out.println("返回消息的文本信息" + msg.getReplyText());
System.out.println("返回消息的交换机" + msg.getExchange());
System.out.println("返回消息的路由" + msg.getRoutingKey());
System.out.println("返回消息为" + new String(msg.getBody()));
}
});
//发送数据
Iterator<Map.Entry<String, String>> iterator = area.entrySet().iterator();
while(iterator.hasNext()) {
Map.Entry<String, String> next = iterator.next();
//发送数据
channel.basicPublish(RabbitContent.CHANGE_TOPIC, next.getKey(), true, null, next.getValue().getBytes());
}
System.out.println("消息发送成功");
//channel.close();
//connection.close();
}
}