commons
<?xml version="1.0" encoding="UTF-8"?><web-app version="2.4"
xmlns="http://java.sun.com/xml/ns/j2ee"
xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="http://java.sun.com/xml/ns/j2ee
http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd">
<welcome-file-list>
<welcome-file>index.jsp</welcome-file>
</welcome-file-list>
<servlet>
<servlet-name>upload</servlet-name>
<servlet-class>com.Upload</servlet-class>
</servlet>
<servlet-mapping>
<servlet-name>upload</servlet-name>
<url-pattern>/upload.do</url-pattern>
</servlet-mapping>
</web-app>
index.jsp page:
<PRE class=html name="code"><%@page contentType="text/html" pageEncoding="UTF-8"%>
<!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=UTF-8">
<title>file upload demo</title>
</head>
<body>
<center>
<h1>file upload demo</h1>
<form name="uploadform" method="post" action="<%=request.getContextPath()%>/upload.do" enctype="multipart/form-data">
<table border="1" width="450" cellpadding="4" cellspacing="2" bordercolor="#9bd7ff">
<tr>
<td width="100%" colspan="2">dir：<input name="dir" size="40" type="text"></td>
</tr>
<tr>
<tr>
<td width="100%" colspan="2">file1：<input name="file1" size="40" type="file"></td>
</tr>
<tr>
<td width="100%" colspan="2">file2：<input name="file2" size="40" type="file"></td>
</tr>
<tr>
<td width="100%" colspan="2">file3：<input name="file3" size="40" type="file"></td>
</tr>
<tr>
<td align="center"><input name="upload" type="submit" value="upload"> </td>
</tr>
</table>
</form>
</center>
</body>
</html>
</PRE>
Upload.java :
<PRE class=java name="code">package com;
import java.io.File;
import java.io.IOException;
import java.io.InputStream;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.util.Iterator;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
public class Upload extends HttpServlet {
private static final long serialVersionUID = 1976222622672301465L;
@Override
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
boolean isMultipart = ServletFileUpload.isMultipartContent(request);
if (isMultipart) {
DiskFileItemFactory factory = new DiskFileItemFactory();
File tempDir = new File("D:\\temp");
if (!tempDir.exists()) {
tempDir.mkdirs();
}
factory.setRepository(tempDir);
factory.setSizeThreshold(10 * 1024);
ServletFileUpload fu = new ServletFileUpload(factory);
fu.setSizeMax(1000000000);
fu.setHeaderEncoding("UTF-8");
// maximum size that will be stored in memory?
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try {
List items = fu.parseRequest(request);
Iterator iter = items.iterator();
while (iter.hasNext()) {
FileItem item = (FileItem) iter.next();
String fileName = item.getName();
if (fileName != null && !fileName.trim().equals("")) {
if (item.isFormField()) {
String name = item.getFieldName();
String value = new String(item.getString()
.getBytes("UTF-8"), "UTF-8");
System.out.println("name: " name);
System.out.println("value: " value);
} else {
// save to disk
String imageDir = "D:\\target\\";
System.out.println(request.getCharacterEncoding());
File saveDir = new File(imageDir);
if (!saveDir.exists()) {
saveDir.mkdirs();
}
if (fileName != null && !fileName.trim().equals("")) {
int i = fileName.lastIndexOf("\\");
fileNamefileName = fileName.substring(i);
File saveFile = new File(saveDir, fileName);
if (!saveFile.exists()) {
saveFile.createNewFile();
}
item.write(saveFile);
}
// save to DB
Connection conn = null;// if conn already received.
PreparedStatement pstmt = conn
.prepareStatement("insert into test values(?)");
InputStream is = item.getInputStream();
pstmt.setBinaryStream(1, is, (int) item.getSize());
pstmt.executeUpdate();
is.close();
pstmt.close();
conn.close();
}
}
}
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
}</PRE>
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