我是Websphere MQ（IBM z / OS）技术的新手。我们需要实现一个独立的应用程序，该应用程序使用JMS技术连接到MQ服务器（在IBM z / OS上。这由不同的组织维护，我们只有有限的访问权限）并在队列中放置一条消息。 / p>
以下是我的代码片段。
private void sendMessage(String queue, String msg) {
JmsFactoryFactory ff = JmsFactoryFactory.getInstance(WMQConstants.WMQ_PROVIDER);
JmsConnectionFactory cf = ff.createConnectionFactory();
cf.setStringProperty(WMQConstants.WMQ_HOST_NAME, host);
cf.setIntProperty(WMQConstants.WMQ_PORT, port);
cf.setStringProperty(WMQConstants.WMQ_CHANNEL, channel);
cf.setIntProperty(WMQConstants.WMQ_CONNECTION_MODE, WMQConstants.WMQ_CM_CLIENT);
cf.setStringProperty(WMQConstants.WMQ_QUEUE_MANAGER, queueManagerName);
cf.setStringProperty(WMQConstants.USERID, user);
cf.setStringProperty(WMQConstants.PASSWORD, password);
Connection connection = null;
Session session = null;
Destination destination = null;
MessageProducer producer = null;
connection = cf.createConnection(user, password);
session = connection.createSession(false, Session.AUTO_ACKNOWLEDGE);
destination = session.createQueue(queue);
//((MQDestination)destination).setCCSID(37);
producer = session.createProducer(destination);
TextMessage message = session.createTextMessage();
message.setIntProperty(WMQConstants.JMS_IBM_CHARACTER_SET, 37);
//message.setIntProperty(WMQConstants.JMS_IBM_ENCODING, 785);
message.setText(msg);
// Start the connection
connection.start();
// And, send the message
producer.send(message);
}
我已成功连接到另一端的MQ服务器，并以ASCII格式将消息放在远程服务器上。我能够使用从AIX服务器上放入队列的消息。
但是由于MQ在z / OS上运行而且消费者也是大型机应用程序，因此我输出的消息似乎是垃圾/不可读格式。经过一些研究后，我发现消息需要转换为EBCDIC才能放在z / OS MQ上。我希望这将由IBM MQ库负责。
请帮助我如何将消息放入EBCDIC格式。
答案 0 :(得分：2)
你做错了：
message.setIntProperty(WMQConstants.JMS_IBM_CHARACTER_SET, 37);
您需要声明要放入队列的字符集。因为它看起来像Java，我假设它是一个UTF-16字符串。将其声明为1208，而不是37。
另一方面，如果他们想要它在EBCDIC中，他们将执行GET-With-Convert，声明他们希望在IBM 37/1140中接收它，MQ将调用z / OS的Unicode转换服务并制作它发生了。
答案 1 :(得分：0)
要以非标准编码存储您的邮件，您必须使用BytesMessage而不是TextMessage。这可能有用（未经测试！）：
byte[] messageBytes = msg.getBytes("IBM037");
BytesMessage message = session.createBytesMessage();
message.writeBytes(messageBytes);
但最好让消费方尊重给定的消息编码 - 这就是你把它放在那里的原因。
答案 2 :(得分：0)
更重要的是，如果您的接收者不是Java客户端，则需要按如下方式禁用JMS头：
destination = session.createQueue("queue:///" + queue + "?targetClient=1")
或通过调用Native MQ实现：
((MQDestination)destination).setMessageBodyStyle(WMQConstants.WMQ_MESSAGE_BODY_MQ)
请参阅：
https://www-01.ibm.com/support/knowledgecenter/SSFKSJ_8.0.0/com.ibm.mq.dev.doc/q032120_.htm
https://www-01.ibm.com/support/knowledgecenter/SSFKSJ_8.0.0/com.ibm.mq.dev.doc/q032140_.htm?lang=en
http://www-01.ibm.com/support/knowledgecenter/SSFKSJ_7.0.1/com.ibm.mq.csqzaw.doc/jm10910_.htm
答案 3 :(得分：0)
如果可能，请使用MQ的MQGMO转换选项转换为本地计算机的字符集。但是，如果您希望（或不能）使用该机制，则还可以实现自己的字符集转换以完全控制。例如：
//---------------------------------------------------
//Character Translation Table for: IBM500
private static char[] EBCDIC2ASCII_IBM500 = new char[] {
0, 1, 2, 3, 156, 9, 134, 127, 151, 141, 142, 11, 12, 13, 14, 15,
16, 17, 18, 19, 157, 10, 8, 135, 24, 25, 146, 143, 28, 29, 30, 31,
128, 129, 130, 131, 132, 10, 23, 27, 136, 137, 138, 139, 140, 5, 6, 7,
144, 145, 22, 147, 148, 149, 150, 4, 152, 153, 154, 155, 20, 21, 158, 26,
32, 160, 226, 228, 224, 225, 227, 229, 231, 241, 91, 46, 60, 40, 43, 33,
38, 233, 234, 235, 232, 237, 238, 239, 236, 223, 93, 36, 42, 41, 59, 94,
45, 47, 194, 196, 192, 193, 195, 197, 199, 209, 166, 44, 37, 95, 62, 63,
248, 201, 202, 203, 200, 205, 206, 207, 204, 96, 58, 35, 64, 39, 61, 34,
216, 97, 98, 99, 100, 101, 102, 103, 104, 105, 171, 187, 240, 253, 254, 177,
176, 106, 107, 108, 109, 110, 111, 112, 113, 114, 170, 186, 230, 184, 198, 164,
181, 126, 115, 116, 117, 118, 119, 120, 121, 122, 161, 191, 208, 221, 222, 174,
162, 163, 165, 183, 169, 167, 182, 188, 189, 190, 172, 124, 175, 168, 180, 215,
123, 65, 66, 67, 68, 69, 70, 71, 72, 73, 173, 244, 246, 242, 243, 245,
125, 74, 75, 76, 77, 78, 79, 80, 81, 82, 185, 251, 252, 249, 250, 255,
92, 247, 83, 84, 85, 86, 87, 88, 89, 90, 178, 212, 214, 210, 211, 213,
48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 179, 219, 220, 217, 218, 159
};
private static char[] ASCII2EBCDIC_IBM500 = new char[] {
0, 1, 2, 3, 55, 45, 46, 47, 22, 5, 37, 11, 12, 13, 14, 15,
16, 17, 18, 19, 60, 61, 50, 38, 24, 25, 63, 39, 28, 29, 30, 31,
64, 79, 127, 123, 91, 108, 80, 125, 77, 93, 92, 78, 107, 96, 75, 97,
240, 241, 242, 243, 244, 245, 246, 247, 248, 249, 122, 94, 76, 126, 110, 111,
124, 193, 194, 195, 196, 197, 198, 199, 200, 201, 209, 210, 211, 212, 213, 214,
215, 216, 217, 226, 227, 228, 229, 230, 231, 232, 233, 74, 224, 90, 95, 109,
121, 129, 130, 131, 132, 133, 134, 135, 136, 137, 145, 146, 147, 148, 149, 150,
151, 152, 153, 162, 163, 164, 165, 166, 167, 168, 169, 192, 187, 208, 161, 7,
32, 33, 34, 35, 36, 0, 6, 23, 40, 41, 42, 43, 44, 9, 10, 27,
48, 49, 26, 51, 52, 53, 54, 8, 56, 57, 58, 59, 4, 20, 62, 255,
65, 170, 176, 177, 159, 178, 106, 181, 189, 180, 154, 138, 186, 202, 175, 188,
144, 143, 234, 250, 190, 160, 182, 179, 157, 218, 155, 139, 183, 184, 185, 171,
100, 101, 98, 102, 99, 103, 158, 104, 116, 113, 114, 115, 120, 117, 118, 119,
172, 105, 237, 238, 235, 239, 236, 191, 128, 253, 254, 251, 252, 173, 174, 89,
68, 69, 66, 70, 67, 71, 156, 72, 84, 81, 82, 83, 88, 85, 86, 87,
140, 73, 205, 206, 203, 207, 204, 225, 112, 221, 222, 219, 220, 141, 142, 223
};
public static void main(String[] args)
{
String ebcdic = "" + (char)0xC1 + (char)0xC2 + (char)0xC3;
System.err.println("ebcdic: " + ebcdic);
String ascii = "";
for( char c: ebcdic.toCharArray() ) {
ascii += EBCDIC2ASCII_IBM500[c];
}
System.err.println("ascii: " + ascii);
ebcdic="";
for( char c: ascii.toCharArray() ) {
ebcdic += ASCII2EBCDIC_IBM500[c];
}
System.err.println("ebcdic: " + ebcdic);
}
下面是创建这些表的代码：
public static void createTranslationTable(Charset charset)
{
System.out.println();
System.out.println("// ---------------------------------------------------" );
System.out.println("// Character Translation Tables for: " + charset.name() );
byte[] b = new byte[256];
for( int i=0;i<256;i++ ) b[i] = (byte)i;
String s = "";
try {
s = new String(b,charset.name());
}
catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
int[] inverse = new int[256];
System.out.println("unsigned char EBCDIC2ASCII_" + charset.name() + "[256] = {");
for( int i=0;i<256;i++ ) {
int c = s.charAt(i); // %256;
if( c>255 ) c=i;
inverse[c] = i;
System.out.print( c + (i<255?", ":"") );
if( i%16==15 ) System.out.println();
}
System.out.println("};");
System.out.println("unsigned char ASCII2EBCDIC_" + charset.name() + "[256] = {");
for( int i=0;i<256;i++ ) {
int c = inverse[i]; // %256;
System.out.print( c + (i<255?", ":"") );
if( i%16==15 ) System.out.println();
}
System.out.println("};");
}
您可以这样使用它：
createTranslationTable( Charset.forName("CP037") );