下面是一段代码,看看出了什么问题呀!!大家帮我解决一下吧!!!
JSP部分!




uploadfile






JBuilder Generated JSP









CLASS部分:
package jp.co.ite.application.form;

import jp.co.tenartni.xsv.UploadFileData;
import jp.co.ite.application.common.*;
import jp.co.tenartni.data.*;
import jp.co.tenartni.xqa.*;
import jp.co.tenartni.xsv.*;
import java.io.*;
import java.net.*;
import java.util.*;
import java.lang.*;
import jp.co.tenartni.xsv.ServletBase;

public class uploadForm extends HtmlForm
{

    public uploadForm()
    {
        // 表示フォーム正当性のチェック
        this.setCheckSequence(true);
        // 出力タイプ設定
        this.setOutputType(HtmlFormType.USE_JSP_CALLPAGE);
        // ＪＳＰファイルの設定
        this.setJavaServerPageFileName("uploadfile.jsp");
    }

    public void initialize(ParamSet sessionParam) throws Exception
     {

        // メッセージの消去
        this.clearErrorMessage();
        this.clearNormalMessage();
    }
// リクエストチェック、画面遷移等の実行
    protected HtmlForm doExecute(java.util.Vector requestParamNames,
                               java.util.Hashtable requestParamValues)
                               throws Exception
    {
    try
    {
        String sub = this.getSubmitValue(requestParamValues);
        if (sub.equals("UPLOAD"))
        {
            //System.out.println("111"+requestParamValues.get("uploadFILE")+"1111qrwydgdhdg");
            UploadFileData updfile = new UploadFileData();
//UploadFileData updfile = (UploadFileData)requestParamValues.get("uploadFILE");
            updfile = (UploadFileData)requestParamValues.get("uploadFILE");
            BufferedReader in = new BufferedReader(new InputStreamReader(new ByteArrayInputStream(updfile.getContent()),""));
            String inStr = null;
            while ((inStr = in.readLine()) != null)
            {
                System.out.println("wo asi ni y !");
            }
            in.close();
            //HtmlForm nextForm = this.getSession().getFormByName("FormNext");
            //return nextForm;
        }


    }
         catch(Exception x)
        {
            x.printStackTrace();
        }
return this;
    }

}
出现的错误提示:
2002-09-30 10:32:58 - ContextManager: Adding context Ctx( /examples )
2002-09-30 10:32:58 - ContextManager: Adding context Ctx( /admin )
Starting tomcat. Check logs/tomcat.log for error messages
2002-09-30 10:32:58 - ContextManager: Adding context Ctx(  )
2002-09-30 10:32:58 - ContextManager: Adding context Ctx( /test )
2002-09-30 10:33:00 - PoolTcpConnector: Starting HttpConnectionHandler on 100
2002-09-30 10:33:00 - PoolTcpConnector: Starting Ajp12ConnectionHandler on 8007
aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb
ccccccccccccccccccccccccccccc
java.lang.ClassCastException: [Ljava.lang.String;
        at jp.co.ite.application.form.uploadForm.doExecute(uploadForm.java:50)
        at jp.co.tenartni.xsv.HtmlForm.execute(HtmlForm.java:395)
        at jp.co.tenartni.xsv.BasicSession.doFormExecute(BasicSession.java:194)
        at jp.co.tenartni.xsv.BasicSession.execute(BasicSession.java:305)
        at jp.co.tenartni.xsv.ServletBase.executeSession(ServletBase.java:450)
        at jp.co.tenartni.xsv.ServletBase.service(ServletBase.java:291)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:853)
        at org.apache.tomcat.core.ServletWrapper.doService(ServletWrapper.java:4
05)
        at org.apache.tomcat.core.Handler.service(Handler.java:287)
        at org.apache.tomcat.core.ServletWrapper.service(ServletWrapper.java:372
)
        at org.apache.tomcat.core.ContextManager.internalService(ContextManager.
java:812)
        at org.apache.tomcat.core.ContextManager.service(ContextManager.java:758
)
        at org.apache.tomcat.service.http.HttpConnectionHandler.processConnectio
n(HttpConnectionHandler.java:213)
        at org.apache.tomcat.service.TcpWorkerThread.runIt(PoolTcpEndpoint.java:
416)
        at org.apache.tomcat.util.ThreadPool$ControlRunnable.run(ThreadPool.java
:501)
        at java.lang.Thread.run(Thread.java:484)

UP+GZ...........