我在代码中加入<%@page contentType="text/html;charset=gb2312"%>总是弹出下面的错误

olivehb 2001-11-29 07:52:18

java.io.UnsupportedEncodingException: EUC_CN
at sun.io.Converters.getConverterClass(Unknown Source)
at java.lang.Exception.<init>(Unknown Source)
at java.io.IOException.<init>(Unknown Source)
at java.io.UnsupportedEncodingException.<init>(Unknown Source)
at sun.io.Converters.getConverterClass(Unknown Source)
at sun.io.Converters.newConverter(Unknown Source)
at sun.io.ByteToCharConverter.getConverter(Unknown Source)
at java.io.InputStreamReader.<init>(Unknown Source)
at allaire.jrun.jsp.JSPParser.writeXML(JSPParser.java:128)
at allaire.jrun.jsp.JSPParser.generateXML(JSPParser.java:107)
at allaire.jrun.jsp.JSPParser.generateXML(JSPParser.java:64)
at allaire.jrun.jsp.Translator.parsePage(Translator.java:192)
at allaire.jrun.jsp.Translator.translate(Translator.java:390)
at allaire.jrun.jsp.Translator.translate(Translator.java, Compiled Code)
at allaire.jrun.jsp.JSPTranslator.translate(JSPTranslator.java, Compiled Code)
at allaire.jrun.jsp.JSPTranslator.translate(JSPTranslator.java, Compiled Code)
at allaire.jrun.jsp.JSPServlet.service(JSPServlet.java, Compiled Code)
at allaire.jrun.jsp.JSPServlet.service(JSPServlet.java, Compiled Code)
at allaire.jrun.servlet.JRunSE.service(JRunSE.java, Compiled Code)
at allaire.jrun.session.JRunSessionService.service(JRunSessionService.java, Compiled Code)
at allaire.jrun.servlet.JRunSE.runServlet(JRunSE.java, Compiled Code)
at allaire.jrun.servlet.JRunRequestDispatcher.forward(JRunRequestDispatcher.java, Compiled Code)
at allaire.jrun.servlet.JRunSE.service(JRunSE.java, Compiled Code)
at allaire.jrun.servlet.JRunSE.service(JRunSE.java, Compiled Code)
at allaire.jrun.servlet.JvmContext.dispatch(JvmContext.java, Compiled Code)
at allaire.jrun.http.WebEndpoint.run(WebEndpoint.java, Compiled Code)
at allaire.jrun.ThreadPool.run(ThreadPool.java, Compiled Code)
at allaire.jrun.WorkerThread.run(WorkerThread.java, Compiled Code)

怎么办？多谢多谢

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