代码非本人所写,只是将代码稍微做了些改动,在自己的环境中运行起来了,侵删
模型图是这种模式的模型图,并不是代码对应的模型图,仅供参考
ConnectionUtils.java
创建并设置factory的基本属性,并返回新创建的connection
package test.rabbitmq.rabbitmq.mq5s;
import com.rabbitmq.client.*;
import java.io.IOException;
import java.util.concurrent.TimeoutException;
public class ConnectionUtils {
public static Connection getConnection() throws IOException, TimeoutException {
ConnectionFactory factory = new ConnectionFactory();
factory.setHost("127.0.0.1");
factory.setPort(5672);
factory.setVirtualHost("/");
factory.setUsername("guest");
factory.setPassword("guest");
return factory.newConnection();
}
}
模型图
发送端:Send.java
package test.rabbitmq.rabbitmq.mq5s.mq1;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import test.rabbitmq.rabbitmq.mq5s.ConnectionUtils;
import java.io.IOException;
import java.util.concurrent.TimeoutException;
/**简单队列
* 生产者发送消息
*/
public class Send {
private static final String QUEUE_NAME = "test_simple_queue";
public static void main(String[] args) throws IOException, TimeoutException {
Connection connection = ConnectionUtils.getConnection();
Channel channel = connection.createChannel();
channel.queueDeclare(QUEUE_NAME, false, false, false, null);
String msg = "hello simple!!!!!!!!!!!";
channel.basicPublish("", QUEUE_NAME, null, msg.getBytes());
System.out.println("--send msg;" + msg);
channel.close();
connection.close();
}
}
接收端:Receive.java
package test.rabbitmq.rabbitmq.mq5s.mq1;
import com.rabbitmq.client.*;
import test.rabbitmq.rabbitmq.mq5s.ConnectionUtils;
import java.io.IOException;
import java.util.concurrent.TimeoutException;
/**
* 消费者获取消息
*/
public class Receive {
private static final String QUEUE_NAME = "test_simple_queue";
public static void main(String[] args) throws IOException, TimeoutException {
//获取链接
Connection connection = ConnectionUtils.getConnection();
//创建通道
Channel channel = connection.createChannel();
//队列声明
channel.queueDeclare(QUEUE_NAME, false, false, false, null);
DefaultConsumer consumer = new DefaultConsumer(channel) {
//获取到达的消息
@Override
public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
super.handleDelivery(consumerTag, envelope, properties, body);
String msg = new String(body, "utf-8");
System.out.println("new api recv:" + msg);
}
};
//监听队列
channel.basicConsume(QUEUE_NAME, true, consumer);
}
}
模型图
发送端:Send.java
package test.rabbitmq.rabbitmq.mq5s.mq2;
import com.rabbitmq.client.*;
import test.rabbitmq.rabbitmq.mq5s.ConnectionUtils;
import java.io.IOException;
import java.util.concurrent.TimeoutException;
/**轮询分发
* \---c1
* p---Queue----\
* \---c2
*/
public class Send {
private static final String QUEUE_NAME = "test_work_queue";
public static void main(String[] args) throws IOException, TimeoutException, InterruptedException {
//获取链接
Connection connection = ConnectionUtils.getConnection();
//获取channel
Channel channel = connection.createChannel();
//声明队列
channel.queueDeclare(QUEUE_NAME, false, false, false, null);
for (int i = 0; i < 100; i++) {
String msg = "hello" + i;
System.out.println("[WQ ] send:" + msg);
channel.basicPublish("", QUEUE_NAME, null, msg.getBytes());
Thread.sleep(i * 20);
}
channel.close();
connection.close();
}
}
接收端01:Receive1.java
package test.rabbitmq.rabbitmq.mq5s.mq2;
import com.rabbitmq.client.*;
import test.rabbitmq.rabbitmq.mq5s.ConnectionUtils;
import java.io.IOException;
import java.util.concurrent.TimeoutException;
public class Receive1 {
public static final String QUEUE_NAME = "test_work_queue";
public static void main(String[] args) throws IOException, TimeoutException {
//创建链接
Connection connection = ConnectionUtils.getConnection();
//创建频道
Channel channel = connection.createChannel();
//声明队列
channel.queueDeclare(QUEUE_NAME, false, false, false, null);
//定义一个消费者
Consumer consumer = new DefaultConsumer(channel) {
@Override
public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
String msg = new String(body, "utf-8");
System.out.println("[1] Recv msg :" + msg);
try {
Thread.sleep(2000);
} catch (InterruptedException e) {
e.printStackTrace();
} finally {
System.out.println("[1] done");
}
}
};
boolean autoAck = false;
channel.basicConsume(QUEUE_NAME, autoAck, consumer);
}
}
接收端02:Receive2.java
package test.rabbitmq.rabbitmq.mq5s.mq2;
import com.rabbitmq.client.*;
import test.rabbitmq.rabbitmq.mq5s.ConnectionUtils;
import java.io.IOException;
import java.util.concurrent.TimeoutException;
public class Receive2 {
public static final String QUEUE_NAME = "test_work_queue";
public static void main(String[] args) throws IOException, TimeoutException {
//创建链接
Connection connection = ConnectionUtils.getConnection();
//创建频道
Channel channel = connection.createChannel();
//声明队列
channel.queueDeclare(QUEUE_NAME, false, false, false, null);
//定义一个消费者
Consumer consumer = new DefaultConsumer(channel) {
@Override
public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
String msg = new String(body, "utf-8");
System.out.println("[2] Recv msg :" + msg);
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
} finally {
System.out.println("[2] done");
}
}
};
boolean autoAck = false;
channel.basicConsume(QUEUE_NAME, autoAck, consumer);
}
}
模型图
发送端:Send.java
package test.rabbitmq.rabbitmq.mq5s.mq3;
import com.rabbitmq.client.*;
import test.rabbitmq.rabbitmq.mq5s.ConnectionUtils;
import java.io.IOException;
import java.util.concurrent.TimeoutException;
/**公平分发
* \---c1
* p---Queue----\
* \---c2
*/
public class Send {
private static final String QUEUE_NAME = "test_work_queue";
public static void main(String[] args) throws IOException, TimeoutException, InterruptedException {
//获取链接
Connection connection = ConnectionUtils.getConnection();
//获取channel
Channel channel = connection.createChannel();
//声明队列
channel.queueDeclare(QUEUE_NAME, false, false, false, null);
/**
* 每个消费者发送消费之前,消息队列不发送下一个消息到消费者,一次只处理一个消息
* 限制发送给同一个消费者不得超过一个消息
*/
int prefetchCount = 1;
channel.basicQos(prefetchCount);
for (int i = 0; i < 50; i++) {
String msg = "hello" + i;
System.out.println("[WQ ] send:" + msg);
channel.basicPublish("", QUEUE_NAME, null, msg.getBytes());
Thread.sleep(i * 5);
}
channel.close();
connection.close();
}
}
接收端01:Receive1.java
package test.rabbitmq.rabbitmq.mq5s.mq3;
import com.rabbitmq.client.*;
import test.rabbitmq.rabbitmq.mq5s.ConnectionUtils;
import java.io.IOException;
import java.util.concurrent.TimeoutException;
public class Receive1 {
public static final String QUEUE_NAME = "test_work_queue";
public static void main(String[] args) throws IOException, TimeoutException {
//创建链接
Connection connection = ConnectionUtils.getConnection();
//创建频道
final Channel channel = connection.createChannel();
//声明队列
channel.queueDeclare(QUEUE_NAME, false, false, false, null);
//保证一次只发送一个
channel.basicQos(1);
//定义一个消费者
Consumer consumer = new DefaultConsumer(channel) {
@Override
public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
String msg = new String(body, "utf-8");
System.out.println("[1] Recv msg :" + msg);
try {
Thread.sleep(2000);
} catch (InterruptedException e) {
e.printStackTrace();
} finally {
System.out.println("[1] done");
//手动回执
channel.basicAck(envelope.getDeliveryTag(), false);
}
}
};
boolean autoAck = false;
channel.basicConsume(QUEUE_NAME, autoAck, consumer);
}
}
接收端02:Receive2.java
package test.rabbitmq.rabbitmq.mq5s.mq3;
import com.rabbitmq.client.*;
import test.rabbitmq.rabbitmq.mq5s.ConnectionUtils;
import java.io.IOException;
import java.util.concurrent.TimeoutException;
public class Receive2 {
public static final String QUEUE_NAME = "test_work_queue";
public static void main(String[] args) throws IOException, TimeoutException {
//创建链接
Connection connection = ConnectionUtils.getConnection();
//创建频道
final Channel channel = connection.createChannel();
//声明队列
channel.queueDeclare(QUEUE_NAME, false, false, false, null);
//保证一次只发送一个
channel.basicQos(1);
//定义一个消费者
Consumer consumer = new DefaultConsumer(channel) {
@Override
public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
String msg = new String(body, "utf-8");
System.out.println("[2] Recv msg :" + msg);
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
} finally {
System.out.println("[2] done");
//手动回执
channel.basicAck(envelope.getDeliveryTag(), false);
}
}
};
boolean autoAck = false;
channel.basicConsume(QUEUE_NAME, autoAck, consumer);
}
}
模型图
发送端:send.java
package test.rabbitmq.rabbitmq.mq5s.mq4;
import com.rabbitmq.client.*;
import java.io.IOException;
import java.util.concurrent.TimeoutException;
/**
* 发送消息
*/
public class send {
public static void main(String[] args) throws IOException, TimeoutException {
//1.创建连接工厂
ConnectionFactory factory = new ConnectionFactory();
//2. 设置参数
factory.setHost("127.0.0.1");//ip 默认值 localhost
factory.setPort(5672); //端口 默认值 5672
factory.setVirtualHost("/");//虚拟机 默认值/
factory.setUsername("guest");//用户名 默认 guest
factory.setPassword("guest");//密码 默认值 guest
//3. 创建连接 Connection
Connection connection = factory.newConnection();
//4. 创建Channel
Channel channel = connection.createChannel();
/*
exchangeDeclare(String exchange, BuiltinExchangeType type, boolean durable, boolean autoDelete, boolean internal, Map<String, Object> arguments)
参数:
1. exchange:交换机名称
2. type:交换机类型
DIRECT("direct"),:定向,把消息交给符合指定routing key 的队列。
FANOUT("fanout"),:扇形(广播),发送消息到每一个与之绑定队列。
TOPIC("topic"),通配符的方式
HEADERS("headers");参数匹配
3. durable:是否持久化
4. autoDelete:自动删除
5. internal:内部使用。 一般false
6. arguments:参数
*/
String exchangeName = "test_fanout";
//5. 创建交换机
channel.exchangeDeclare(exchangeName, BuiltinExchangeType.FANOUT,true,false,false,null);
//6. 创建队列
String queue1Name = "test_fanout_queue1";
String queue2Name = "test_fanout_queue2";
channel.queueDeclare(queue1Name,true,false,false,null);
channel.queueDeclare(queue2Name,true,false,false,null);
//7. 绑定队列和交换机
/*
queueBind(String queue, String exchange, String routingKey)
参数:
1. queue:队列名称
2. exchange:交换机名称
3. routingKey:路由键,绑定规则
如果交换机的类型为fanout ,routingKey设置为""
*/
channel.queueBind(queue1Name,exchangeName,"");
channel.queueBind(queue2Name,exchangeName,"");
String body = "日志信息:张三调用了findAll方法...日志级别:info...";
//8. 发送消息
channel.basicPublish(exchangeName,"",null,body.getBytes());
//9. 释放资源
channel.close();
connection.close();
}
}
接收端01:receive1.java
package test.rabbitmq.rabbitmq.mq5s.mq4;
import com.rabbitmq.client.*;
import java.io.IOException;
import java.util.concurrent.TimeoutException;
public class receive1 {
public static void main(String[] args) throws IOException, TimeoutException {
//1.创建连接工厂
ConnectionFactory factory = new ConnectionFactory();
//2. 设置参数
factory.setHost("127.0.0.1");//ip 默认值 localhost
factory.setPort(5672); //端口 默认值 5672
factory.setVirtualHost("/");//虚拟机 默认值/
factory.setUsername("guest");//用户名 默认 guest
factory.setPassword("guest");//密码 默认值 guest
//3. 创建连接 Connection
Connection connection = factory.newConnection();
//4. 创建Channel
Channel channel = connection.createChannel();
String queue1Name = "test_fanout_queue1";
String queue2Name = "test_fanout_queue2";
/*
basicConsume(String queue, boolean autoAck, Consumer callback)
参数:
1. queue:队列名称
2. autoAck:是否自动确认
3. callback:回调对象
*/
// 接收消息
Consumer consumer = new DefaultConsumer(channel){
/*
回调方法,当收到消息后,会自动执行该方法
1. consumerTag:标识
2. envelope:获取一些信息,交换机,路由key...
3. properties:配置信息
4. body:数据
*/
@Override
public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
/* System.out.println("consumerTag:"+consumerTag);
System.out.println("Exchange:"+envelope.getExchange());
System.out.println("RoutingKey:"+envelope.getRoutingKey());
System.out.println("properties:"+properties);*/
System.out.println("body:"+new String(body));
System.out.println("将日志信息打印到控制台.....");
}
};
channel.basicConsume(queue1Name,true,consumer);
//关闭资源?不要
}
}
接收端02:receive2.java
package test.rabbitmq.rabbitmq.mq5s.mq4;
import com.rabbitmq.client.*;
import java.io.IOException;
import java.util.concurrent.TimeoutException;
public class receive2 {
public static void main(String[] args) throws IOException, TimeoutException {
//1.创建连接工厂
ConnectionFactory factory = new ConnectionFactory();
//2. 设置参数
factory.setHost("127.0.0.1");//ip 默认值 localhost
factory.setPort(5672); //端口 默认值 5672
factory.setVirtualHost("/");//虚拟机 默认值/
factory.setUsername("guest");//用户名 默认 guest
factory.setPassword("guest");//密码 默认值 guest
//3. 创建连接 Connection
Connection connection = factory.newConnection();
//4. 创建Channel
Channel channel = connection.createChannel();
String queue1Name = "test_fanout_queue1";
String queue2Name = "test_fanout_queue2";
/*
basicConsume(String queue, boolean autoAck, Consumer callback)
参数:
1. queue:队列名称
2. autoAck:是否自动确认
3. callback:回调对象
*/
// 接收消息
Consumer consumer = new DefaultConsumer(channel){
/*
回调方法,当收到消息后,会自动执行该方法
1. consumerTag:标识
2. envelope:获取一些信息,交换机,路由key...
3. properties:配置信息
4. body:数据
*/
@Override
public void handleDelivery(String consumerTag, Envelope envelope, AMQP.BasicProperties properties, byte[] body) throws IOException {
/* System.out.println("consumerTag:"+consumerTag);
System.out.println("Exchange:"+envelope.getExchange());
System.out.println("RoutingKey:"+envelope.getRoutingKey());
System.out.println("properties:"+properties);*/
System.out.println("body:"+new String(body));
System.out.println("将日志信息保存数据库.....");
}
};
channel.basicConsume(queue2Name,true,consumer);
//关闭资源?不要
}
}
模型图
发送端:Send.java
package test.rabbitmq.rabbitmq.mq5s.mq5;
import com.rabbitmq.client.Channel;
import com.rabbitmq.client.Connection;
import com.rabbitmq.client.ConnectionFactory;
import java.io.IOException;
import java.util.concurrent.TimeoutException;
public class Send {
private static final String EXCHANGE_NAME = "logs2";
public static void main(String[] args) throws IOException, TimeoutException {
ConnectionFactory factory = new ConnectionFactory();
Connection connection = factory.newConnection();
Channel channel = connection.createChannel();
channel.exchangeDeclare(EXCHANGE_NAME, "direct");
//debug日志
for (int i = 1; i <= 3; i++) {
String message = "debug_message" + i;
channel.basicPublish(EXCHANGE_NAME, "debug", null, message.getBytes());
}
//info日志
for (int i = 1; i <= 3; i++) {
String message = "info_message" + i;
channel.basicPublish(EXCHANGE_NAME, "info", null, message.getBytes());
}
//error日志
for (int i = 1; i <= 3; i++) {
String message = "error_message" + i;
channel.basicPublish(EXCHANGE_NAME, "error", null, message.getBytes());
}
channel.close();
connection.close();
}
}
接收端01:Receive1.java
package test.rabbitmq.rabbitmq.mq5s.mq5;
import com.rabbitmq.client.*;
import java.io.IOException;
import java.util.concurrent.TimeoutException;
public class Receive1 {
private static final String EXCHANGE_NAME = "logs2";
public static void main(String[] args) throws IOException, TimeoutException {
ConnectionFactory factory = new ConnectionFactory();
Connection connection = factory.newConnection();
Channel channel = connection.createChannel();
channel.exchangeDeclare(EXCHANGE_NAME, "direct");
String queueName = channel.queueDeclare().getQueue();
channel.queueBind(queueName, EXCHANGE_NAME, "debug");
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(message);
}
};
channel.basicConsume(queueName,true,consumer);
}
}
接收端02:Receive2.java
package test.rabbitmq.rabbitmq.mq5s.mq5;
import com.rabbitmq.client.*;
import java.io.IOException;
import java.util.concurrent.TimeoutException;
public class Receive2 {
private static final String EXCHANGE_NAME = "logs2";
public static void main(String[] args) throws IOException, TimeoutException {
ConnectionFactory factory = new ConnectionFactory();
Connection connection = factory.newConnection();
Channel channel = connection.createChannel();
channel.exchangeDeclare(EXCHANGE_NAME, "direct");
String queueName = channel.queueDeclare().getQueue();
channel.queueBind(queueName, EXCHANGE_NAME, "info");
DefaultConsumer 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(message);
}
};
channel.basicConsume(queueName,true,consumer);
}
}
接收端03:Receive3.java
package test.rabbitmq.rabbitmq.mq5s.mq5;
import com.rabbitmq.client.*;
import java.io.IOException;
import java.util.concurrent.TimeoutException;
public class Receive3 {
private static final String EXCHANGE_NAME = "logs2";
public static void main(String[] args) throws IOException, TimeoutException {
ConnectionFactory factory = new ConnectionFactory();
Connection connection = factory.newConnection();
Channel channel = connection.createChannel();
channel.exchangeDeclare(EXCHANGE_NAME, "direct");
String queueName = channel.queueDeclare().getQueue();
channel.queueBind(queueName, EXCHANGE_NAME, "error");
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");
FileUtil.save(message);
System.out.println("添加记录到文件!");
}
};
channel.basicConsume(queueName,true,consumer);
}
}
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文章浏览阅读956次,点赞3次,收藏5次。编程过程中,一般c#调用非托管的代码有两种方式:1.直接调用从DLL中导出的函数。2.调用COM对象上的接口方法。首先说明第1种方式,基本步骤如下:1.使用关键字static,extern声明需要导出的函数。2.把DllImport 属性附加到函数上。3.掌握常用的数据类型传递的对应关系。4.如果需要,为函数的参数和返回值指定自定义数据封送处理信息,这将重写.net framework默认的封送处理。简单举例如下:托管函数原型:DWORD GetShortPathName(LPCTST_c# 声明kernel32 函数
文章浏览阅读490次。仅供学习使用。执行命令git init,发现文件夹出现.git目录即说明创建本地仓库成功。创建的文件名为空,拓展名是bashrc,所以要开启文件的拓展名选项并检查该文件的格式是否为Bash RC源文件。工作区的文件创建或修改后通过git add提交到暂存区,暂存区的文件通过git commit提交到仓库。创建一个测试用的文件夹,进入后右键打开Git Bash,设置用户信息。ATT:红色的是工作区的文件,绿色的是暂存区的文件。GIT的流程分为三大块:工作区、暂存区、仓库。_请确保本地完成了 git 的全局配置
文章浏览阅读517次。三种共享类型:微软的CIFS文件共享协议,可以让windows机器在网上邻居之间共享文件,也即是windows-windows之间的文件共享;NFS文件共享协议,可以让远程共享的共享目录挂载在本地端,就像本地端的一个partition分区一样,但是共享也只能在UNIX-UNIX之间来共享;SAMBA文件共享协议,可以实现WINDOWS-UNIX之间的文件的共享,WINDOWS机器在网上..._smb共享只抓到nbns报文
文章浏览阅读983次。5月30日早间,“鸿蒙系统首批升级机型名单”这则消息在微博刷屏。按照微博博主爆料称,华为Mate40系列、Mate X2、P40系列、nova8系列以及华为平板MatePadPro将在首批升级鸿蒙操作系统。值得注意的是,今年4月,华为消费者业务AI与智慧全场景业务部副总裁杨海松表示,16%的市场份额是一条生死线。5月30日上午,记者实探位于深圳的华为全球旗舰店发现,目前展示的机型仍搭载安卓系统。工..._鸿蒙5升级名单
文章浏览阅读608次。ES6新增的数据类型,Map、Set之间的关系,如何使用?Map和Set的属性和方法。
文章浏览阅读574次。FP-Growth(Frequent Pattern Growth,频繁模式增长)算法是一种用于数据挖掘中频繁项集发现的有效方法。它是由Jian Pei,Jiawei Han和Runying Mao在2000年的论文中首次提出的。该算法主要应用于事务数据分析、关联规则挖掘以及数据挖掘领域的其他相关应用。_pyfpgrowth库
文章浏览阅读299次。一、下载MySQL:mysql-installer-web-community-5.7.35.0.msi二、安装双击下载的msi安装文件,弹出安装界面根据指示进行下一步的安装。选择安装的产品,分别为:MySQL Server、MySQL Workbench,然后Next一路执行execute和next。直到设置root用户的密码一路next三、配置环境变量为了能在cmd中使用mysql,需要将安装路径的bin配置到环境变量path中。在 ._mysql-installer-web-community-5.7.35.0.msi .net