关于Jsp下载问题？

有时候会有这个错误，
403 Forbidden
有时候会也有这个错误，
404 Not Found
/zyproject/Web/WEB-INF/docs/20040826124644000000.jpg was not found on this server
拜托各位给个意见，到底怎么一回事情呀？

解决方案 »

  1.   

    <%@ page contentType="text/html; charset=gb2312"%>
    <%@ include file="/DataIni/DataOpen.jsp"%>
    <%@ include file="/ScriptLib/Init.jsp"%>
    <html><head>
    <meta http-equiv="Content-Type" content="text/html; charset=gb2312">
    <meta name="GENERATOR" content="Microsoft FrontPage 4.0">
    <meta name="ProgId" content="FrontPage.Editor.Document">
    <title></title>
    <link rel="stylesheet" type="text/css" href="/StyleLib/Default_Style_Sheet.css">
    </head>
    <body>
    <%//@ include file="/TemplateLib/Wsh.jsp"%>
    <%@ include file="/TemplateLib/Head.jsp"%>
    <center>
    <br>
    <table border="0" cellpadding="0" cellspacing="0" width="80%">    
      <tr>
        <td width="100%" valign="top">测试XMLHTTP</td>
      </tr>
    </table>
    <br>
    <table border="0" cellpadding="0" cellspacing="0" width="80%">    
      <tr>
        <td width="100%" valign="top">
    <input type="text" value="http://10.70.38.10:9002/System/Dot/Show.jsp?Id=1" id="URLID">
    <input type="text" value="C:\\DownURL.doc" id="LocalURLID">
    <input type="button" value="下载" onclick="DownURL(URLID.value,LocalURLID.value);">
        </td>
      </tr>
    </table>
    <br>
    <div id=App style="border:1 solid #000000;background-color:#FFFFFF;height:200px;overflow:auto;width:80%;z-index:2" contentEditable></div>
    <script>
    function OpenFile(strFileName)
    {
    try
    {
    var WordApp=new ActiveXObject("Word.Application");
    WordApp.Application.Visible=false;
    var Doc=WordApp.Documents.Open(strFileName);
    Doc.Activate();
    Doc.Parent.Options.InsertedTextColor=4;
    Doc.Parent.Options.InsertedTextMark=2;
    Doc.Parent.Options.DeletedTextColor=4;
    Doc.Parent.Options.DeletedTextMark=1;
    Doc.TrackRevisions=true;
    Doc.PrintRevisions=true;
    Doc.ShowRevisions=true;
    Doc.Application.UserName="";
    var Range=Doc.Range();
    Range.Select();
    var Selection=WordApp.Selection;
    Selection.Copy();
    App.focus();
    document.execCommand("Paste");
    App.focus();
    WordApp.DisplayAlerts=false;
    Doc.Close();
    WordApp.DisplayAlerts=true;
    WordApp.Quit();
    }
    catch(e)
    {
    window.confirm(e);
    }
    }
    function DownURL(strRemoteURL,strLocalURL)
    {
    try
    {
    var xmlHTTP=new ActiveXObject("Microsoft.XMLHTTP");
    xmlHTTP.open("Get",strRemoteURL,false);
    xmlHTTP.send();
    var adodbStream=new ActiveXObject("ADODB.Stream");
    adodbStream.Type=1;//1=adTypeBinary
    adodbStream.Open();
    adodbStream.write(xmlHTTP.responseBody);
    adodbStream.SaveToFile(strLocalURL,2);
    adodbStream.Close();
    adodbStream=null;
    xmlHTTP=null;
    OpenFile(strLocalURL);
    }
    catch(e)
    {
    window.confirm("下载URL出错!");
    }
    //window.confirm("下载完成.");
    }
    </script>
    <br>
    <table border="0" cellpadding="0" cellspacing="0" width="80%">    
      <tr>
        <td width="100%" valign="top">测试XMLHTTP</td>
      </tr>
    </table>
    </br>
    </center>
    <%@ include file="/TemplateLib/Tail.jsp"%>
    <%@ include file="/DataIni/DataClose.jsp"%>
    </body></html>
      

  2.   

    用applet也可以
    public void ReadURL(String strURL)
    {
    try
    {
    int iHttpResult;
    URL m_URL=new URL(strURL);
    URLConnection m_URLConn=m_URL.openConnection();
    m_URLConn.connect();
    HttpURLConnection m_HttpConn=(HttpURLConnection)m_URLConn;
    iHttpResult=m_HttpConn.getResponseCode();
    if(iHttpResult!=HttpURLConnection.HTTP_OK)
    JOptionPane.showMessageDialog(this,"无法连接...");
    else
    {
    int iFileSize=m_URLConn.getContentLength();
    InputStreamReader m_Reader=new InputStreamReader(m_URLConn.getInputStream());
    char[] Buffer=new char[2048];
    int iNum=0;
    while(iNum>-1)
    {
    iNum=m_Reader.read(Buffer);
    if(iNum<0)break;
    //JOptionPane.showMessageDialog(this,new String(Buffer,0,iNum));
    }
    m_Reader.close();
    }
    }
    catch(Exception e)
    {
    JOptionPane.showMessageDialog(this,e.getMessage());
    }
    }
      

  3.   

    用VC做ActiveX也可以
    CString CDownInfoDlg::DownURL(CString strURL)
    {
    CInternetSession m_Session("DigitalTitan");
        CHttpFile* pFile=NULL;
    CException* e; TCHAR szTempPath[MAX_PATH],szTempFile[MAX_PATH];
        DWORD dwResult=::GetTempPath(MAX_PATH,szTempPath);
    CString strURLPath;
    GetTempFileName(szTempPath,_T("DigitalTitan_"),0,szTempFile);
    strURLPath=szTempFile;
        TRY
    {
    pFile=(CHttpFile*)m_Session.OpenURL(strURL);
    }
    CATCH_ALL(e)
    {
    pFile=NULL;
    AfxMessageBox("URL地址不合法",MB_ICONINFORMATION);
    return "";
    }
    END_CATCH_ALL if(pFile)
    {
    DWORD dwStatus;
    DWORD dwBufLen=sizeof(dwStatus);
    BOOL bSuccess=pFile->QueryInfo(HTTP_QUERY_STATUS_CODE|HTTP_QUERY_FLAG_NUMBER,&dwStatus,&dwBufLen);
    if(bSuccess&&dwStatus>=200&&dwStatus<300)
    {
    CStdioFile m_File;
    if(m_File.Open(strURLPath,CFile::modeWrite|CFile::modeCreate|CFile::typeBinary))
    {
    BYTE pBuf[1024];
    DWORD dwRead;
    do
    {
    dwRead=pFile->Read(pBuf,1024);
    m_File.Write(pBuf,dwRead);
    }
    while(dwRead>0);
    m_File.Close();
    }
    }
    pFile->Close();
    delete pFile;
    }
    else
    {
    m_Session.Close();
    }
    return strURLPath;
    }