package com.servlet;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.SQLException;
import java.util.Calendar;
import java.util.Random;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.jspsmart.upload.SmartUpload;
import com.jspsmart.upload.SmartUploadException;
/**
* @author lihan
*
*/
public class UploadServlet extends HttpServlet {
private static final long serialVersionUID = 1L;
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
}
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
PrintWriter out = response.getWriter();
response.setCharacterEncoding("gb2312");
Random rd = new Random();
Calendar time = Calendar.getInstance();
SmartUpload su = new SmartUpload();
// 初始化上传
su.initialize(this.getServletConfig(), request,response);
// 定义允许上传文件类型
su.setAllowedFilesList("gif,jpg,rar,zip,doc,txt");
// 不允许上传文件类型
try
{
su.setDeniedFilesList("jsp,asp,php,aspx,html.htm");
} catch (SQLException e1)
{
e1.printStackTrace();
}
// 单个文件最大限制
su.setMaxFileSize(200000);
// 总共上传文件限制
su.setTotalMaxFileSize(5000000);
// 开始上传,如果超过限制或者为不允许类型，抛出异常提示
su.setContentDisposition(null);
try
{
su.upload();
}
catch (Exception e)
{
out.println("file too max");
}
// 得到单个上传文件的信息
for (int i = 0; i < su.getFiles().getCount(); i++) {
com.jspsmart.upload.File file = su.getFiles().getFile(i);
if (file.isMissing()) continue;
// 定义上传后另存为的文件名
String filename = String.valueOf(time.get(Calendar.YEAR))
+ String.valueOf(time.get(Calendar.MONTH))
+ String.valueOf(time.get(Calendar.DAY_OF_MONTH))
+ String.valueOf(time.get(Calendar.HOUR_OF_DAY))
+ String.valueOf(time.get(Calendar.MINUTE))
+ String.valueOf(time.get(Calendar.SECOND))
+ String.valueOf(rd.nextInt(100)) + "."
+ file.getFileExt();
// 文件另存为
try
{
file.saveAs("upload/"+filename);
}
catch (SmartUploadException e)
{
e.printStackTrace();
}
out.println("upload success!");
out.println("file name:" + filename);
}
}
}
UploadTest.rar （9个子文件） 
UploadTest 
.project 1KB .mymetadata 303B WebRoot WEB-INF web.xml 823B lib 
jspupload.jar 12KB classes com servlet UploadServlet.class 3KB index.jsp 1KB META-INF MANIFEST.MF 39B upload .myeclipse src com servlet UploadServlet.java 3KB .classpath 434B资源评论
