📄 largeupload.jsp

📁 一个用jsp开发的文件上传系统。利用javabean来实现的。来练习javabean.是一个完整系统
💻 JSP
字号:
<html>
<%@ page language="java" import="javazoom.upload.*,java.util.*,java.io.*" %>
<%@ page errorPage="ExceptionHandler.jsp" %>

<% String directory = "c:/uploads"; %>
<% String tmpdirectory = "c:/uploads/tmp"; %>
<% boolean createsubfolders = true; %>
<jsp:useBean id="upBean" scope="page" class="javazoom.upload.UploadBean" >
  <jsp:setProperty name="upBean" property="folderstore" value="<%= directory %>" />
  <jsp:setProperty name="upBean" property="parser" value="<%= MultipartFormDataRequest.CFUPARSER %>"/>
  <jsp:setProperty name="upBean" property="parsertmpdir" value="<%= tmpdirectory %>"/>
  <jsp:setProperty name="upBean" property="filesizelimit" value="8589934592"/>
</jsp:useBean>

<head>
<title>Samples : Large Upload</title>
<style TYPE="text/css">
<!--
.style1 {
	font-size: 12px;
	font-family: Verdana;
}
-->
</style>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1">
</head>
<body bgcolor="#FFFFFF" text="#000000">
<ul class="style1">
<%
      if (MultipartFormDataRequest.isMultipartFormData(request))
      {
         // Uses MultipartFormDataRequest to parse the HTTP request.
         MultipartFormDataRequest mrequest = null;
         try
         {
         	mrequest = new MultipartFormDataRequest(request,null,-1);
         } catch (Exception e)
	       {
	  	     // Cancel current upload (e.g. Stop transfert)
	       }         
         String todo = null;
         if (mrequest != null) todo = mrequest.getParameter("todo");
	     if ( (todo != null) && (todo.equalsIgnoreCase("upload")) )
	     {
                Hashtable files = mrequest.getFiles();
                if ( (files != null) && (!files.isEmpty()) )
                {
                    UploadFile file = (UploadFile) files.get("uploadfile");
                    if (file != null) out.println("<li>Form field : uploadfile"+"<BR> Uploaded file : "+file.getFileName()+" ("+file.getFileSize()+" bytes)"+"<BR> Content Type : "+file.getContentType());
                    // Uses the bean now to store specified by jsp:setProperty at the top.
                    String relative = mrequest.getParameter("relativefilename");
                    if ((createsubfolders == true) && (relative != null))
                    {
			            int inda=relative.length();
			            int indb=file.getFileName().length();
			            if (inda > indb)
			            {
			               String subfolder = relative.substring(0,(inda-indb)-1);
			               subfolder = subfolder.replace('\\','/').replace('/',java.io.File.separatorChar);
			               upBean.setFolderstore(directory+java.io.File.separator+subfolder);
			            }
                    }
                    upBean.store(mrequest, "uploadfile");
                    String chunkidStr = mrequest.getParameter("chunkid");
                    String chunkamountStr = mrequest.getParameter("chunkamount");
                    String chunkbaseStr = mrequest.getParameter("chunkbase");
                    if ((chunkidStr != null) && (chunkamountStr != null) && (chunkbaseStr != null))
                    {
                    	int chunkid = Integer.parseInt(chunkidStr);
                    	int chunkamount = Integer.parseInt(chunkamountStr);
                    	if (chunkid == chunkamount)
                    	{
			              // recompose file.
			              String fname = upBean.getFolderstore()+java.io.File.separator+chunkbaseStr;
			              File fread = new File(fname);
			              if (fread.canRead()) fname = fname+"."+System.currentTimeMillis();
			              FileOutputStream fout = new FileOutputStream(fname);
			              byte[] buffer = new byte[4096];
			              for (int c=1;c<=chunkamount;c++)
			              {
			    	         File filein = new File(upBean.getFolderstore()+java.io.File.separator+chunkbaseStr+"."+c);
			    	         FileInputStream fin = new FileInputStream(filein);
			    	         int read = -1;
			    	         while ((read = fin.read(buffer)) > 0) fout.write(buffer,0,read);
			    	         fin.close();
			    	         filein.delete();
			              }
			              fout.close();
                    	}
                    }
                    upBean.setFolderstore(directory);                    
                }
                else
                {
                  out.println("<li>No uploaded files");
                }
	     }
         else out.println("<BR> todo="+todo);
      }
%>
</ul>
<form method="post" action="LargeUpload.jsp" name="upform" enctype="multipart/form-data">
  <table width="60%" border="0" cellspacing="1" cellpadding="1" align="center" class="style1">
    <tr>
      <td align="left"><b>Select a file to upload :</b></td>
    </tr>
    <tr>
      <td align="left"><input type="file" name="uploadfile" size="50"></td>
    </tr>
    <tr>
      <td align="left">
		<input type="hidden" name="todo" value="upload">
        <input type="submit" name="Submit" value="Upload">
        <input type="reset" name="Reset" value="Cancel">
        </td>
    </tr>
  </table>
  <br>
  <br>
  <table border="0" cellspacing="1" cellpadding="0" align="center">
    <tr>
      <td bgcolor="#666666">
        <table width="100%" border="0" cellspacing="1" cellpadding="0" align="center" class="style1">
          <tr>
            <td bgcolor="#FFFFFF"><b><font color="#0000FF">&nbsp;
              HTML tags used in this form : </font></b></td>
          </tr>
          <tr>
            <td bgcolor="#FFFFFF">&nbsp;&lt;<b>form</b>
              <b>method</b>=&quot;<b><font color="#FF0000">post</font></b>&quot;
              <b>action</b>=&quot;<b><font color="#FF0000">LargeUpload.jsp</font></b>&quot;
              name=&quot;upload&quot; <b>enctype</b>=&quot;<b><font color="#FF0000">multipart/form-data</font></b>&quot;&gt;</td>
          </tr>
          <tr>
            <td bgcolor="#FFFFFF">&nbsp;&lt;<b>input</b>
              <b>type</b>=&quot;<b><font color="#FF0000">file</font></b>&quot;
              <b>name</b>=&quot;<font color="#FF0000"><b>uploadfile</b></font>&quot;
              size=&quot;50&quot;&gt;</td>
          </tr>
        </table>
      </td>
    </tr>
  </table>
  <p>&nbsp;</p>
  <p>&nbsp;</p>
  <p align="center">&nbsp;</p>
  <p align="center">&nbsp;</p>
  <p align="center"><font size="-1" face="Courier New, Courier, mono">Copyright
    &copy; <a href="http://www.javazoom.net" target="_blank">JavaZOOM</a> 1999-2005</font></p>
</form>
</body>
</html>
⌨️ 快捷键说明

复制代码 Ctrl + C
搜索代码 Ctrl + F
全屏模式 F11
切换主题 Ctrl + Shift + D
显示快捷键 ?
增大字号 Ctrl + =
减小字号 Ctrl + -