今天在做MQ的一個例子程序的時候，遇到了CCSID問題，還好弄了半天終於搞定了 ：）
今天把MQ文檔中的例子拿來做了一下，在調試的過程中遇到了CCSID問題。
下面先把程序總體思路說一下，軟硬件的環境是：我使用一臺PC機做服務器，並在這臺機器上安裝WebSphere MQ的服務器。然後把另外一臺PC機作爲客戶端，並且在這臺機器上安裝WebSphere MQ的Windows 版客戶端。服務器端的操作系統是Windows 2000 Professional，客戶端是Windows XP。
我做的這個例子是通過客戶端的方式來向服務器傳遞消息。服務器上的MQ中的參數爲：
hostname:neu
MQM name: QM_guo
Channel name:ch_server
Q name:Q_guo
PtpSender.java(用於向服務器端傳遞消息) PtpReceiver.java(用於從服務器端得到消息）
程序代碼如下：
/*
* Created on 2005-1-18 * * TODO To change the template for this generated file go to * Window - Preferences - Java - Code Style - Code Templates
*/
/** * @author Ralph * * TODO To change the template for this generated type comment go to * Window - Preferences - Java - Code Style - Code Templates */import com.ibm.mq.*;public class PtpSender {
public static void main(String[] args) {
try{ String hostName="neu"; String channel="ch_server"; String qManager="QM_guo"; String qName="Q_guo"; //set up the MQEnvironment properties for the client MQEnvironment.hostname=hostName; MQEnvironment.channel=channel; MQEnvironment.properties.put(MQC.TRANSPORT_PROPERTY,MQC.TRANSPORT_MQSERIES); MQEnvironment.CCSID=1381; //connetion to Q Manager MQQueueManager qMgr=new MQQueueManager(qManager); //set up the open options int openOptions=MQC.MQOO_OUTPUT|MQC.MQOO_FAIL_IF_QUIESCING; //open the Q MQQueue queue=qMgr.accessQueue(qName,openOptions,null,null,null); //set the put message options,will use the default settings MQPutMessageOptions pmo=new MQPutMessageOptions(); //build a message and write data MQMessage outMsg=new MQMessage(); //prepare message with the user data String msgString="Test Message from PtpSender program"; outMsg.writeUTF(msgString); //Now we put the message on the Q queue.put(outMsg,pmo); //commit the transaction qMgr.commit(); System.out.println("The message has been sussesfully put #####"); //close the Q and QManager objects queue.close(); qMgr.disconnect(); 
} catch(MQException ex){ System.out.println("completion code:"+ex.completionCode+" Reason code:"+ex.reasonCode); ex.printStackTrace(); } catch(Exception e){ e.printStackTrace(); } }} import com.ibm.mq.MQC;import com.ibm.mq.MQEnvironment;import com.ibm.mq.MQQueue;import com.ibm.mq.MQQueueManager;import com.ibm.*;import com.ibm.mq.*;/* * Created on 2005-1-18 * * TODO To change the template for this generated file go to * Window - Preferences - Java - Code Style - Code Templates *//** * @author Ralph * * TODO To change the template for this generated type comment go to Window - * Preferences - Java - Code Style - Code Templates */public class PtpReceiver { public static void main(String[] args) { try { String hostName = "neu"; String channel = "ch_server"; String qManager = "QM_guo"; String qName = "Q_guo"; // set up the MQEnvironment properties for the client MQEnvironment.hostname = hostName; MQEnvironment.channel = channel; MQEnvironment.properties.put(MQC.TRANSPORT_PROPERTY, MQC.TRANSPORT_MQSERIES); MQEnvironment.CCSID = 1381; // connetion to Q Manager MQQueueManager qMgr = new MQQueueManager(qManager); // set up the open options int openOptions = MQC.MQOO_INPUT_SHARED | MQC.MQOO_FAIL_IF_QUIESCING; // open the Q MQQueue queue = qMgr.accessQueue(qName, openOptions, null, null, null); // set get message options MQGetMessageOptions gmo = new MQGetMessageOptions(); gmo.options = gmo.options + MQC.MQGMO_SYNCPOINT; gmo.options = gmo.options + MQC.MQGMO_WAIT; gmo.options = gmo.options + MQC.MQGMO_FAIL_IF_QUIESCING; gmo.waitInterval = 3000; // build mssage MQMessage inMsg = new MQMessage(); // get the message from Q queue.get(inMsg, gmo); // read the data from the message String msgString = inMsg.readUTF(); System.out.println("The Message from Q is :" + msgString); // commit the trasaction qMgr.commit(); // close the Q and connection queue.close(); qMgr.disconnect(); } catch (MQException ex) { System.out.println("Completion code is:" + ex.completionCode + " reason code is:" + ex.reasonCode); ex.printStackTrace(); } catch (Exception e) { e.printStackTrace(); } }}
文檔中的源程序沒有紅色部分的代碼，這是我在調試的過程中出現提示：隊列管理器沒有打開CCSID功能的提示。經過在網上找資料和查看文檔，最後知道是由於Windows 2000與Windows XP CCSID不同導致的，所以在代碼中對CCSID的值進行顯示的負值後問題解決了。
CCSID的值在AIX上一般設爲1383，如果要支持GBK則設爲1386，在WIN上設爲1381。