Encoding a JMS TextMessage

问题:

I'm receiving messages from a JMS MQ queue which are supposedly utf-8 encoded. However on reading the out using msgText = ((TextMessage)msg).getText(); I get question marks where non standard characters were present. It seems possible to specify the encoding when using a bytemessage, but I cant find a way to specify encoding while reading out the TextMessage. Is there a way to solve this, or should I press for bytemessages?

回答1:

We tried adding Dfile.encoding="UTF-8" to Websphere's jvm and we added

source = new StreamSource(new ByteArrayInputStream(
     ((TextMessage) msg).getText().getBytes("UTF-8")));

In our MessageListener. This worked for us, so then we took out the Dfile.encoding bit away and it still works for us.

Due to preferred minimum configuration for Websphere we decided to leave it this way, also taking into account that we may easier switch the UTF-8 string by a setting from file or database.

回答2:

If the text is not decoded correctly, then probably the client is not sending the message with the utf-8 codec; this should work:

byte[] by = ((TextMessage) msg).getText().getBytes("ISO-8859-1");
String text = new String(by,"UTF-8");