java往MQ里面发消息和取消息java
package test; 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; import com.ibm.mq.constants.MQConstants; public class test1{ //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做用, //所以必须在创建MQQueueManager对象以前设定MQEnvironment中的值. MQEnvironment.hostname="172.31.17.162"; //MQ服务器的IP地址 MQEnvironment.channel="SVRCONN_GW"; //服务器链接的通道 MQEnvironment.CCSID=1208; //服务器MQ服务使用的编码1381表明GBK、1208表明UTF(Coded Character Set Identifier:CCSID) MQEnvironment.port=33333; //MQ端口 qmName = "QM_TEST"; //MQ的队列管理器名称 qName = "TEST"; //MQ远程队列的名称 try { //定义并初始化队列管理器对象并链接 //MQQueueManager能够被多线程共享,可是从MQ获取信息的时候是同步的,任什么时候候只有一个线程能够和MQ通讯。 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{ //设置将要链接的队列属性 // 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,全部这里不能够用MQOO_INPUT_AS_Q_DEF属性*/ //int openOptions = MQC.MQOO_INPUT_AS_Q_DEF | MQC.MQOO_OUTPUT; /*如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; //链接队列 //MQQueue provides inquire, set, put and get operations for WebSphere MQ queues. //The inquire and set capabilities are inherited from MQManagedObject. /*关闭了就从新打开*/ 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,若是队列中没有消息,就会发生异常,不过没有关系,有TRY...CATCH,若是是第三方程序调用方法,若是无返回则说明无消息 * 第三方能够将该方法放于一个无限循环的while(true){...}之中,不须要设置等待,由于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{ //设置将要链接的队列属性 // 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(若是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(若是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) /*关闭了就从新打开*/ 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); byte[] buf = new byte[retrieve.getMessageLength()]; retrieve.readFully(buf); System.out.println("The message is: " + new String(buf)); 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[]) throws InterruptedException { /*下面两个方法可同时使用,也能够单独使用*/ //sendMessage("this is a test"); //System.out.println("jwh"); for (int i = 0; i < 100; i++) { getMessage(); Thread.sleep(20000); } } } *