說明：Dynamic Web project，javaEE技術
用到了開源jar包：
commons-fileupload-1.3.1.jar & commons-io-2.2.jar
效果展示與檔案結構
送出表單
<%@ page language="java" contentType="text/html; charset=UTF-8"
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></title>
</head>
<body>
<form action="UpFileServlet" method="post" enctype="multipart/form-data">
檔案：<input type="file" name="f"><br
描述：<input type="text" name="des"> <br/>
<input type="submit">
</form>
</body>
</html> 後端接收
package com.lsh.servlet;
import java.io.File;
import java.io.IOException;
import java.util.List;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
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.FileUploadException;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;
import org.apache.commons.io.FileUtils;
@WebServlet("/UpFileServlet")
public class UpFileServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
System.out.println("enter in servlet!");
DiskFileItemFactory dItemFactory=new DiskFileItemFactory();
ServletFileUpload sFileUpload=new ServletFileUpload(dItemFactory);
sFileUpload.setHeaderEncoding("utf-8");
try {
List<FileItem> list=sFileUpload.parseRequest(request);
for (FileItem fileItem : list) {
if(fileItem.isFormField()){
String string=fileItem.getFieldName();
if(string.equals("des")){
response.getWriter().println(string+":"+fileItem.getString("UTF-8"));
}
}else{
File file=new File(getServletContext().getRealPath("/")+"upload/"+fileItem.getName());
FileUtils.copyInputStreamToFile(fileItem.getInputStream(),file );
System.out.println(file.getAbsolutePath());
}
}
} catch (FileUploadException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
doGet(request, response);