爪哇咖啡屋 : [教學]Java Servlet檔案上傳方案

import com.oreilly.servlet.*;
MultipartRequest mr = new MultipartRequest(req , req.getRealPath("/") + "tmp" , FILE_MAX_SIZE);
File uf = mr.getFile("uploadfile");

import org.apache.commons.fileupload.*;
    public void doPost(HttpServletRequest req, HttpServletResponse res)
    {
        DiskFileUpload fu = new DiskFileUpload();
        // maximum size before a FileUploadException will be thrown
        fu.setSizeMax(1000000);
        // maximum size that will be stored in memory
        fu.setSizeThreshold(4096);
        // the location for saving data that is larger than getSizeThreshold()
        fu.setRepositoryPath("/tmp");

        List fileItems = fu.parseRequest(req);
        // assume we know there are two files. The first file is a small
        // text file, the second is unknown and is written to a file on
        // the server
        Iterator i = fileItems.iterator();
        String comment = ((FileItem)i.next()).getString();
        FileItem fi = (FileItem)i.next();
        // filename on the client
        String fileName = fi.getName();
        // write the file
        fi.write("/www/uploads/" + fileName);
    }

<% request.setCharacterEncoding("UTF-8"); %>