fileup_in.jsp  //单文件上传 
<%@ page contentType="text/html; charset=gb2312" language="java" import="java.sql.*" errorPage="" %> <%@ page import="org.apache.commons.fileupload.*" %> <%@ page import="java.util.*" %> <%@ page import="java.io.*" %> <jsp:useBean id="test" scope="page" class="test.DBconn"/> <html> <head> <title>Untitled Document</title> <meta http-equiv="Content-Type" content="text/html; charset=gb2312"> </head> 
<body> <%          try{         String dir=request.getRealPath(".");         DiskFileUpload fu = new DiskFileUpload();                      fu.setSizeMax(4194304);                 //设置文件大小. 
        fu.setSizeThreshold(4096);              //设置缓冲大小. 
        fu.setRepositoryPath(dir+"/test");      //设置临时目录.            List fileItems = fu.parseRequest(request);  //解析请求,返回一个集合.          
        Iterator i = fileItems.iterator();         String fieldvalue="";         String ff = "";   Object tt = "";   Vector v = new Vector();         while(i.hasNext())       {                FileItem fi = (FileItem)i.next();        if(fi.isFormField())                        //这是用来确定是否为文件属性,       {             String fieldName = fi.getFieldName();     //这里取得表单名      fieldvalue=fi.getString();        //这里取得表单值          v.addElement(fieldvalue);       // out.print("<br>1");     // out.print("name:"+fieldName);     // out.print("value:"+fieldvalue);             // System.out.println(fieldvalue);        }         else                                           //这里开始外理文件   {       File fullFile = new File(fi.getName());        File savedFile = new File(getServletContext().getRealPath("/test/images/"),fullFile.getName());    ff = fullFile.getName();       fi.write(savedFile);     //上传到服务器              }             }      //将数据写入到数据库     tt = v.elementAt(0);     Object name = v.elementAt(1);     Object down = v.elementAt(2);     Object seqno = v.elementAt(3);    // System.out.println(down);     java.util.Date date = new java.util.Date();        String strdate = date.toLocaleString();      String url = tt + "/";        //int down = 20;        try    {             String sql = "insert into picture(kid,pic_name,pic_url,pic_downs,pic_date,seqno)values('"+tt+"','"+name+"','"+ff+"','"+down+"','"+strdate+"','"+seqno+"')";             test.executeUpdate(sql);    }    catch(Exception e)    {       out.println("insert into db error!");    }    }   catch(Exception e)    {} 
         %> <script language="javascript">    alert("上传成功了,请返回!");window.location.reload("fileup.jsp"); </script> </body> </html> 
   
 
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