日期:2014-05-16  浏览次数:20379 次

jsp文件上传工具类(一)

工具类源程序:

package com.mobile.utils;

import javax.servlet.ServletConfig;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.jspsmart.upload.File;
import com.jspsmart.upload.Files;
import com.jspsmart.upload.SmartUpload;

public class FilesUpload {

	public static boolean upload(ServletConfig config,
			HttpServletRequest request, HttpServletResponse response) {

		boolean flag = false;
		// 声明一个SmartUpload对象
		SmartUpload su = new SmartUpload();
		try {
			// 传入相关参数,完成smartupload初始化
			su.initialize(config, request, response);

			// 上传文件
			// 限定上传文件的类型
			su.setAllowedFilesList("txt");

			// 相当于读取文件流
			su.upload();

			Files files = su.getFiles();
			int count = files.getCount();

			// 循环对每一个文件进行处理
			for (int i = 0; i < count; i++) {
				// 得到每一个文件
				File f = files.getFile(i);
				if (!f.isMissing()) {
					f.saveAs("./upload/" + f.getFileName(),	File.SAVEAS_VIRTUAL);
				}
			}
			flag = true;
		} catch (Exception e) {
			e.printStackTrace();
		}
		return flag;
	}
}

?jsp页面源程序如下:

<%@ page contentType="text/html;charset=GBK"%>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
	<head>
		<title>My JSP 'upload.jsp' starting page</title>
	</head>

	<body>
		<form action="UploadServlet" encType="multipart/form-data"
			method="post">
			请选择附件:
			<br>
			<input type="file" name="myfile">
			<br>
			<input type="file" name="myfile">
			<br>
			<input type="file" name="myfile">
			<br>

			<input type="submit" value="立即上传">
		</form>
	</body>
</html>

??在Servlet中只需简单调用一下即可:

boolean flag = FilesUpload.upload(this.getServletConfig(), request, response);
if (flag) {
	response.getWriter().print("成功上传文件!");
}		

?