commons-fileupload 组件上传
上传页面;up.jsp<%@ page contentType="text/html; charset=gb2312" language="Java" import="Java.sql.*" errorPage="" %><html>
<head>
<title>Untitled Document</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
</head><body>
<form action="up1.jsp" method="post" enctype="multipart/form-data" name="form1">
<input name="thisfile" type="file" id="thisfile">
<input name="user" type="text" id="user" size="10">
<input type="submit" name="Submit" value="Submit">
</form>
</body>
</html>后端处理页面up1.jsp<%@ 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.*" %>
<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(); 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
String fieldvalue=fi.getString(); //这里取得表单值 out.print("<br>");
out.print("name:"+fieldName);
out.print("value:"+fieldvalue);
}
else //这里开始外理文件
{
String fileName = fi.getName(); // 返回文件名包括客户机路径
if(fileName!=null) out.print(fileName);
out.print("<br>"+fi.getFieldName()); // 打印文件表单名
fi.write(new File(dir+"/test/a.jpg")); // 写文件到服务器.
}
}
}
}
catch(Exception e)
{} %></body>
</html>
上传页面;up.jsp<%@ page contentType="text/html; charset=gb2312" language="Java" import="Java.sql.*" errorPage="" %><html>
<head>
<title>Untitled Document</title>
<meta http-equiv="Content-Type" content="text/html; charset=gb2312">
</head><body>
<form action="up1.jsp" method="post" enctype="multipart/form-data" name="form1">
<input name="thisfile" type="file" id="thisfile">
<input name="user" type="text" id="user" size="10">
<input type="submit" name="Submit" value="Submit">
</form>
</body>
</html>后端处理页面up1.jsp<%@ 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.*" %>
<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(); 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
String fieldvalue=fi.getString(); //这里取得表单值 out.print("<br>");
out.print("name:"+fieldName);
out.print("value:"+fieldvalue);
}
else //这里开始外理文件
{
String fileName = fi.getName(); // 返回文件名包括客户机路径
if(fileName!=null) out.print(fileName);
out.print("<br>"+fi.getFieldName()); // 打印文件表单名
fi.write(new File(dir+"/test/a.jpg")); // 写文件到服务器.
}
}
}
}
catch(Exception e)
{} %></body>
</html>
2...struts自带的
http://bbs.tarena.com.cn/viewthread.php?tid=8193&highlight=%CE%C4%BC%FE%C9%CF%B4%AB