文件上传之SmartUpload

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java代码

package test;

import java.io.File;
import java.io.IOException;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.jspsmart.upload.Files;
import com.jspsmart.upload.SmartUpload;
import com.jspsmart.upload.SmartUploadException;

public class WebFileMgr extends HttpServlet{


	private static final long serialVersionUID = 1L;

	@SuppressWarnings("deprecation")
	@Override
	protected void doGet(HttpServletRequest req, HttpServletResponse resp)
			throws ServletException, IOException {
		resp.setCharacterEncoding("gb2312");
		int count = 0;
		//声明一个上传组价对象
	SmartUpload su = new SmartUpload();
	//初始化
	su.initialize(getServletConfig(),req,resp);
	//设置允许的上传文件格式
	su.setAllowedFilesList("jpg,JPG,bmp,BMP,gif,GIF,jpeg,JPEG,png,PNG,tif,TIF");
	su.setTotalMaxFileSize(10000000);
	try {
		su.upload();//接受上传的文件数据

	String uploadfile = req.getRealPath("upload");
	File upfile= new File(uploadfile);
	if(!upfile.exists()){
		upfile.mkdir();
		System.out.println("目录创建成功");
	}
	Files files = su.getFiles();
	for(int i=0;i<files.getCount();i++){
		com.jspsmart.upload.File file= files.getFile(i);
		if(!file.isMissing()){
			count = su.save("upload");
		}
	}
	} catch (SmartUploadException e) {
		// TODO Auto-generated catch block
		e.printStackTrace();
	}
	System.out.println(count+"file(s) uploaded");
	
	req.getRequestDispatcher("index.jsp").forward(req, resp);
}
	

	@Override
	protected void doPost(HttpServletRequest req, HttpServletResponse resp)
			throws ServletException, IOException {
		doGet(req,resp);
	}
	
}

jsp代码

<% String path=request.getContextPath();
String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; 
%>
<%@ page import="com.jspsmart.upload.SmartUpload" %>
<%@ page import="test.WebFileMgr" %>
<html xmlns="http://www.w3.org/1999/xhtml">
<%@ page import="java.text.SimpleDateFormat" %>
<%@ page import="java.util.Date" %>
<%@ page contentType="text/html;charset=gb2312" language="java" %>
<html>
<head>
<base href="<%=basePath%>">
<title>test</title>
<script type="text/javascript" src="<%=path %>/js/jquery-1.4.3.js"></script>
    <META content="MSHTML 6.00.2900.2963" name=GENERATOR>
    
    </head>
<body>
path:<%=path %><br>
basePath:<%=basePath %>
<form action="/test/upload" enctype="multipart/form-data" id="form1" name="form1" method="post">
<input type="file" name="file" size="60" />
<input type="button" value="确认" onclick="upload()"/>
</form>
</body>
</html>

servlet框架
1.enctype="multipart/form-data" 上传文件的封装

2.form表单的传值 method=“post” get会报错

java.lang.NegativeArraySizeException

3.resp.setCharacterEncoding("gb2312");
<%@ page contentType="text/html;charset=gb2312" language="java" %>

两处的编码方式，当出现中文字符出现乱码时会报错Total File Size exceeded (1110).

4.

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