MQ test in JAVA

import java.io.IOException; 
import com.ibm.mq.MQC; 
import com.ibm.mq.MQEnvironment; 
import com.ibm.mq.MQException; 
import com.ibm.mq.MQGetMessageOptions; 
import com.ibm.mq.MQMessage; 
import com.ibm.mq.MQPutMessageOptions; 
import com.ibm.mq.MQQueue; 
import com.ibm.mq.MQQueueManager; 
 
public class MessageByMQ{ 
     //定义队列管理器和队列的名称 
     private static String qmName;  
     private static String qName; 
     private static MQQueueManager qMgr; 
     static{ 
         //设置环境: 
         //MQEnvironment中包含控制MQQueueManager对象中的环境的构成的静态变量，MQEnvironment的值的设定会在MQQueueManager的构造函数加载的时候起作用， 
         //因此必须在建立MQQueueManager对象之前设定MQEnvironment中的值. 
         MQEnvironment.hostname="10.24.1.180";          //MQ服务器的IP地址       
         MQEnvironment.channel="S_FENGLB";              //服务器连接的通道 
         MQEnvironment.CCSID=1381;                      //服务器MQ服务使用的编码1381代表GBK、1208代表UTF(Coded Character Set Identifier:CCSID) 
         MQEnvironment.port=1414;                       //MQ端口 
         qmName = "QM_FENGLB";                          //MQ的队列管理器名称 
         qName = "testQ";                               //MQ远程队列的名称 
         try { 
             //定义并初始化队列管理器对象并连接  
             //MQQueueManager可以被多线程共享，但是从MQ获取信息的时候是同步的，任何时候只有一个线程可以和MQ通信。 
            qMgr = new MQQueueManager(qmName); 
        } catch (MQException e) { 
             // TODO Auto-generated catch block 
             System.out.println("初使化MQ出错"); 
             e.printStackTrace(); 
         }  
      } 
      /**
       * 往MQ发送消息
       * @param message
       * @return
       */ 
      public static int sendMessage(String message){ 
          int result=0; 
          try{    
              //设置将要连接的队列属性 
              // Note. The MQC interface defines all the constants used by the WebSphere MQ Java programming interface  
              //(except for completion code constants and error code constants). 
              //MQOO_INPUT_AS_Q_DEF:Open the queue to get messages using the queue-defined default. 
              //MQOO_OUTPUT:Open the queue to put messages. 
              /*目标为远程队列，所有这里不可以用MQOO_INPUT_AS_Q_DEF属性*/ 
              //int openOptions = MQC.MQOO_INPUT_AS_Q_DEF | MQC.MQOO_OUTPUT; 
              /*以下选项可适合远程队列与本地队列*/ 
              int openOptions = MQC.MQOO_OUTPUT | MQC.MQOO_FAIL_IF_QUIESCING; 
              //连接队列  
              //MQQueue provides inquire, set, put and get operations for WebSphere MQ queues.  
              //The inquire and set capabilities are inherited from MQManagedObject.  
             /*关闭了就重新打开*/ 
             if(qMgr==null || !qMgr.isConnected()){ 
                 qMgr = new MQQueueManager(qmName); 
             } 
              MQQueue queue = qMgr.accessQueue(qName, openOptions);           
              //定义一个简单的消息 
              MQMessage putMessage = new MQMessage();  
              //将数据放入消息缓冲区 
              putMessage.writeUTF(message);   
              //设置写入消息的属性（默认属性） 
              MQPutMessageOptions pmo = new MQPutMessageOptions();            
              //将消息写入队列  
             queue.put(putMessage,pmo);  
              queue.close(); 
          }catch (MQException ex) {  
              System.out.println("A WebSphere MQ error occurred : Completion code "  
             + ex.completionCode + " Reason code " + ex.reasonCode);  
              ex.printStackTrace(); 
         }catch (IOException ex) {  
              System.out.println("An error occurred whilst writing to the message buffer: " + ex);  
         }catch(Exception ex){ 
              ex.printStackTrace(); 
          }finally{ 
              try { 
                 qMgr.disconnect(); 
             } catch (MQException e) { 
                 e.printStackTrace(); 
             } 
           } 
          return result; 
      } 
      /**
       * 从队列中去获取消息，如果队列中没有消息，就会发生异常，不过没有关系，有TRY...CATCH，如果是第三方程序调用方法，如果无返回则说明无消息
       * 第三方可以将该方法放于一个无限循环的while(true){...}之中，不需要设置等待，因为在该方法内部在没有消息的时候会自动等待。
       * @return
       */ 
      public static String getMessage(){ 
          String message=null; 
          try{             
              //设置将要连接的队列属性 
              // Note. The MQC interface defines all the constants used by the WebSphere MQ Java programming interface  
              //(except for completion code constants and error code constants). 
              //MQOO_INPUT_AS_Q_DEF:Open the queue to get messages using the queue-defined default. 
              //MQOO_OUTPUT:Open the queue to put messages. 
              int openOptions = MQC.MQOO_INPUT_AS_Q_DEF | MQC.MQOO_OUTPUT; 
              MQMessage retrieve = new MQMessage(); 
              //设置取出消息的属性（默认属性） 
              //Set the put message options.（设置放置消息选项）  
              MQGetMessageOptions gmo = new MQGetMessageOptions();  
              gmo.options = gmo.options + MQC.MQGMO_SYNCPOINT;//Get messages under sync point control（在同步点控制下获取消息）  
              gmo.options = gmo.options + MQC.MQGMO_WAIT;  // Wait if no messages on the Queue（如果在队列上没有消息则等待）  
              gmo.options = gmo.options + MQC.MQGMO_FAIL_IF_QUIESCING;// Fail if Qeue Manager Quiescing（如果队列管理器停顿则失败）  
              gmo.waitInterval = 1000 ;  // Sets the time limit for the wait.（设置等待的毫秒时间限制）  
              /*关闭了就重新打开*/ 
             if(qMgr==null || !qMgr.isConnected()){ 
                 qMgr = new MQQueueManager(qmName); 
             } 
              MQQueue queue = qMgr.accessQueue(qName, openOptions);  
              // 从队列中取出消息 
              queue.get(retrieve, gmo); 
              message = retrieve.readUTF();   
              System.out.println("The message is: " + message);  
              queue.close(); 
          }catch (MQException ex) {  
             System.out.println("A WebSphere MQ error occurred : Completion code "  
              + ex.completionCode + " Reason code " + ex.reasonCode);  
          }catch (IOException ex) {  
              System.out.println("An error occurred whilst writing to the message buffer: " + ex);  
          }catch(Exception ex){ 
              ex.printStackTrace(); 
          }finally{ 
              try { 
                 qMgr.disconnect(); 
             } catch (MQException e) { 
                 e.printStackTrace(); 
             } 
         } 
          return message; 
      } 
      public static void main(String args[]) { 
          /*下面两个方法可同时使用，也可以单独使用*/ 
          sendMessage("this is a test"); 
          //getMessage(); 
      } 
 }