一个使用jspSmartUpload控件上传文件的例子

一个使用jspSmartUpload控件上传文件的例子

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package cn.edu.hbcit.ips.servlet;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.*;
import javax.servlet.*;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.log4j.Logger;
import cn.edu.hbcit.ips.bean.ConnBean;
import cn.edu.hbcit.ips.bean.FileOperate;
import com.jspsmart.upload.*;
public class ExcelUpload extends HttpServlet {
private ServletConfig config;
private static final String CONTENT_TYPE = "text/html; charset=GB2312";
protected final Logger log = Logger.getLogger(ExcelUpload.class.getName());

/**
* Constructor of the object.
*/
public ExcelUpload() {
super();
}
/**
* Destruction of the servlet. <br>
*/
public void destroy() {
super.destroy(); // Just puts "destroy" string in log
// Put your code here
}
/**
* The doGet method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to get.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doPost(request, response);

}
/**
* The doPost method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to post.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
request.setCharacterEncoding("gb2312");
int countFile = 0;
String realPath = "";
String oldFilename ="";
SmartUpload su = new SmartUpload(); //实例化jspSmartUpload
su.initialize(config, request, response);// 初始化SmartUpload
su.setAllowedFilesList("xls"); //允许上传的文件类型(中间用,隔开)
su.setMaxFileSize(1 * 1024 * 1024); //声明上传文件最大容量
log.debug("Uploading...");
try{
su.upload();
com.jspsmart.upload.File file = su.getFiles().getFile(0);
oldFilename = file.getFileName();//得到原文件名
log.debug("原文件名为："+oldFilename);
FileOperate fo = new FileOperate();

if(file.getFileExt().equalsIgnoreCase("xls")){//判断文件扩展名是否为xls
//将文件另存为
if (!file.isMissing()) {
realPath = request.getRealPath("/")+"UserFiles\\";
// su.save(realPath);
realPath += fo.generateRandomFilename()+"xls";
log.debug("当前路径是："+realPath);

file.saveAs(realPath, su.SAVE_PHYSICAL);
log.debug("上传文件大小："+file.getSize());
}
}

}catch(Exception e){
log.error(e.getMessage());
}
}
/**
* Initialization of the servlet. <br>
*
* @throws ServletException if an error occurs
*/
public void init(ServletConfig config) throws ServletException {
this.config = config;
}
}
package cn.edu.hbcit.ips.servlet;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.*;
import javax.servlet.*;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.apache.log4j.Logger;
import cn.edu.hbcit.ips.bean.ConnBean;
import cn.edu.hbcit.ips.bean.FileOperate;
import com.jspsmart.upload.*;
public class ExcelUpload extends HttpServlet {
private ServletConfig config;
private static final String CONTENT_TYPE = "text/html; charset=GB2312";
protected final Logger log = Logger.getLogger(ExcelUpload.class.getName());

/**
* Constructor of the object.
*/
public ExcelUpload() {
super();
}
/**
* Destruction of the servlet. <br>
*/
public void destroy() {
super.destroy(); // Just puts "destroy" string in log
// Put your code here
}
/**
* The doGet method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to get.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
doPost(request, response);

}
/**
* The doPost method of the servlet. <br>
*
* This method is called when a form has its tag value method equals to post.
*
* @param request the request send by the client to the server
* @param response the response send by the server to the client
* @throws ServletException if an error occurred
* @throws IOException if an error occurred
*/
public void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
request.setCharacterEncoding("gb2312");
int countFile = 0;
String realPath = "";
String oldFilename ="";
SmartUpload su = new SmartUpload(); //实例化jspSmartUpload
su.initialize(config, request, response);// 初始化SmartUpload
su.setAllowedFilesList("xls"); //允许上传的文件类型(中间用,隔开)
su.setMaxFileSize(1 * 1024 * 1024); //声明上传文件最大容量
log.debug("Uploading...");
try{
su.upload();
com.jspsmart.upload.File file = su.getFiles().getFile(0);
oldFilename = file.getFileName();//得到原文件名
log.debug("原文件名为："+oldFilename);
FileOperate fo = new FileOperate();

if(file.getFileExt().equalsIgnoreCase("xls")){//判断文件扩展名是否为xls
//将文件另存为
if (!file.isMissing()) {
realPath = request.getRealPath("/")+"UserFiles\\";
// su.save(realPath);
realPath += fo.generateRandomFilename()+"xls";
log.debug("当前路径是："+realPath);

file.saveAs(realPath, su.SAVE_PHYSICAL);
log.debug("上传文件大小："+file.getSize());
}
}

}catch(Exception e){
log.error(e.getMessage());
}
}
/**
* Initialization of the servlet. <br>
*
* @throws ServletException if an error occurs
*/
public void init(ServletConfig config) throws ServletException {
this.config = config;
}
}