使用Oreilly上传组件上传文件攻略

<% ... @ page language = " java "  contentType = " text/html; charset=GB18030 "
    pageEncoding = " GB18030 " %>
<! DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd" >
< html >
< head >
< meta  http-equiv ="Content-Type"  content ="text/html; charset=GB18030" >
< title > Insert title here </ title >
</ head >
< body >
< form  name ="form1"  enctype ="multipart/form-data"  method ="post"  action ="file.jsp" >
  上传文件1: < input  type ="file"  name ="file1"  size ="20"  maxlength ="20" >< br >
  文件描述1: < input  type ="text"  name ="file1"  size ="20"  maxlength ="20" >< br >< br >
  上传文件2: < input  type ="file"  name ="file2"  size ="20"  maxlength ="20" >< br >
  文件描述2: < input  type ="text"  name ="file2"  size ="20"  maxlength ="20" >< br >< br >
  上传文件3: < input  type ="file"  name ="file3"  size ="20"  maxlength ="20" >< br >
  文件描述3: < input  type ="text"  name ="file3"  size ="20"  maxlength ="20" >< br >< br >
   < input  type ="submit"  value ="submit" />
   < input  type ="reset"  value ="reset" />
</ form >
</ body >
</ html >

<% ... @ page language = " java "  contentType = " text/html; charset=GB18030 "
    pageEncoding = " GB18030 " %>
<% ... @ page import = " java.io.*,java.util.*,com.oreilly.servlet.MultipartRequest "   %>
<% ... @ taglib prefix = " fmt "  uri = " http://java.sun.com/jsp/jstl/fmt "   %>
<! DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd" >
< html >
< head >
< meta  http-equiv ="Content-Type"  content ="text/html; charset=GB18030" >
< title > Insert title here </ title >
</ head >
< fmt:requestEncoding  value ="gb2312" />
< body >
<% ...
    String  saveDirectory = " /upload " ;  // 设置上传目录
    String  contextPath = request.getSession().getServletContext().getRealPath(saveDirectory);
   System.out.println(contextPath);
   File a = new  File(contextPath);
   System.out.println(a.isDirectory());
    if (!a.isDirectory()){
      a.mkdir();
   }
    int  maxPostSize = 5 * 1024 * 1024 ;  // 设定大小为5M
    String   filename = null ;
    String   contentType = null ;
    String   description = null ;
    int  count = 0 ;
   MultipartRequest multi = new  MultipartRequest(request,contextPath,maxPostSize);
   
   
    // 取得所有上传文件输入类型名称及描述
   Enumeration filesname = multi.getFileNames();
   Enumeration filesdesc = multi.getParameterNames();
    while (filesname.hasMoreElements()){
      String  name = ( String )filesname.nextElement();
      String  dc = ( String )filesdesc.nextElement();
     filename = multi.getFilesystemName(name);
     contentType = multi.getContentType(name);
     description = multi.getParameter(dc);
      if (filename! = null ){
       count ++ ;
        %>
         您上传第 <% = count  %> 个文件: < br >
         文件名： <% = filename  %> < br >
         文件类型： <% = contentType  %> < br >
         文件描述:  <% = description  %> < br >< br >
        <% ...
     }
   }
  %>
 
您总共上传 <% = count  %> 个文件
 
</ body >
</ html >