simple file upload

来源：互联网发布：聚合数据是个啥网站编辑：程序博客网时间：2024/05/03 16:24

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.*,java.util.regex.*" %>
<%@ page import="java.io.*,java.text.*" %>
<%@ page import="javax.servlet.*,javax.servlet.http.*"%>
<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 = "";
  String picname="";
  Object tt = "";
  Vector v = new Vector();
  //String regExp=".+////(.+)$";
  //String[] errorType={".exe",".com",".cgi",".asp",".swf",".txt"};   //检测文件格式
        //Pattern p = Pattern.compile(regExp);
        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());
   ff = fullFile.getName();
   String rr = "";

/* if(ff==null||ff.equals(""))                 //检测文件格式
               continue;
              Matcher m = p.matcher(ff);
             boolean result = m.find();
          if (result){
              for (int temp=0;temp<errorType.length;temp++){
              if (m.group(1).endsWith(errorType[temp])){
                    System.out.println(ff+": wrong type");
           }
    }
   }
   */

   java.util.Date date2 = new java.util.Date();
   SimpleDateFormat formatter = new SimpleDateFormat ("yyyyMMddHHmmss");   //取得时间
      String str2 = formatter.format(date2);
   StringTokenizer st = new StringTokenizer(ff,".");
        if (st.hasMoreTokens()){
          String test12 = st.nextToken();
          rr = st.nextToken();
          //System.out.println(rr);
        }
   picname = str2+"."+rr;     //以时间为图片名称
      File savedFile = new File(getServletContext().getRealPath("/test/images/"),picname);

   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+"','"+picname+"','"+down+"',getdate(),'"+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>