RabbitMQ Install

1.下载安装包

假如下载到/opt目录中

所有版本的下载目录：http://www.rabbitmq.com/releases/rabbitmq-server/

 
          # wget  http: 
          //www.rabbitmq.com/releases/rabbitmq-server/v3.6.2/rabbitmq-server-generic-unix-3.6.2.tar.xz

2.解压安装包

 
          # cd /opt 
         
          # xz -d  rabbitmq-server-generic-unix- 
          3.6 
          . 
          2 
          .tar.xz 
         
          # tar xvf rabbitmq-server-generic-unix- 
          3.6 
          . 
          2 
          .tar

3.启动服务

 
          # cd /opt/rabbitmq_server- 
          3.6 
          . 
          2 
          /sbin 
         
          # ./rabbitmq-server -detached

4.增加账号权限

rabbitmq远程连接默认是使用guest用户，guest密码来连接的，但是只能通过localhost来连接，那对于客户端和rabbitmq服务器不是在同一台主机上的，连接就会报下面错误：

 
          PLAIN login refused: user  
          'guest'  
          can only connect via localhost

此时需要创建一个新的账号，并设置权限：

 
          # cd  /opt/rabbitmq_server- 
          3.6 
          . 
          2 
          /sbin 
         
          # ./rabbitmqctl add_user root  
          123456 
         
          # ./rabbitmqctl set_user_tags root administrator 
         
          # ./rabbitmqctl set_permissions -p / root  
          ".*"  
          ".*"  
          ".*"

5.启用Management Plugin

这个插件实际上已经随rabbitmq一道安装了，要做的是，enable它：

 
          # ./rabbitmq-plugins enable rabbitmq_management 
         

通过 http://rabbitmq-server-ip:15672，输入设置的用户名(root)和密码(123456)就能登录管理界面了，如图：

6.Demo(Java)

a. 消息发送者(Sender.java)

 
          package  
          com.lm.rabbitmq; 
         
          import  
          com.rabbitmq.client.Channel; 
         
          import  
          com.rabbitmq.client.Connection; 
         
          import  
          com.rabbitmq.client.ConnectionFactory; 
         
          public  
          class  
          Send { 
         
          private  
          final  
          static  
          String QUEUE_NAME =  
          "hello" 
          ; 
         
          public  
          static  
          void  
          main(String[] argv)  
          throws  
          Exception { 
         
          ConnectionFactory factory =  
          new  
          ConnectionFactory(); 
         
          factory.setHost( 
          "192.168.1.8" 
          ); 
         
          factory.setPort( 
          5672 
          ); 
         
          factory.setUsername( 
          "root" 
          ); 
         
          factory.setPassword( 
          "123456" 
          ); 
         
          Connection connection = factory.newConnection(); 
         
          Channel channel = connection.createChannel(); 
         
          channel.queueDeclare(QUEUE_NAME,  
          false 
          ,  
          false 
          ,  
          false 
          ,  
          null 
          ); 
         
          String message =  
          "Hello World!" 
          ; 
         
          channel.basicPublish( 
          "" 
          , QUEUE_NAME,  
          null 
          , message.getBytes( 
          "UTF-8" 
          )); 
         
          System.out.println( 
          " [x] Sent '"  
          + message +  
          "'" 
          ); 
         
          channel.close(); 
         
          connection.close(); 
         
          } 
         
          }

b.消息接收者(Receiver.java)

 
          package  
          com.yhiker.rabbitmq; 
         
          import  
          com.rabbitmq.client.*; 
         
          import  
          java.io.IOException; 
         
          public  
          class  
          Receiver { 
         
          private  
          final  
          static  
          String QUEUE_NAME =  
          "hello" 
          ; 
         
          public  
          static  
          void  
          main(String[] argv)  
          throws  
          Exception { 
         
          ConnectionFactory factory =  
          new  
          ConnectionFactory(); 
         
          factory.setHost( 
          "192.168.1.8" 
          ); 
         
          factory.setUsername( 
          "root" 
          ); 
         
          factory.setPassword( 
          "123456" 
          ); 
         
          Connection connection = factory.newConnection(); 
         
          Channel channel = connection.createChannel(); 
         
          channel.queueDeclare(QUEUE_NAME,  
          false 
          ,  
          false 
          ,  
          false 
          ,  
          null 
          ); 
         
          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 '"  
          + message +  
          "'" 
          ); 
         
          } 
         
          }; 
         
          channel.basicConsume(QUEUE_NAME,  
          true 
          , consumer); 
         
          } 
         
          }