jsp文件上传与下载

return status;
}
private void errorMessage(String message) throws Exception {
if (isShowLog) {
server("Exception" + message);
}
if (showErrorMessage) {
private BufferedWriter writer = null;
/**
* @see #fileSize 允许上传的文件大小
*/
private long fileSize = 1024;
/**
* @see #fileName 文件名字
*/
private String fileName = null;
import org.whvcse.upload.impl.Upload;
public class JspUpload implements Upload {
private static final long serialVersionUID = 1L;
private HttpServletRequest request = null;
/*
* if (this.fileName == null) { this.fileName = setFileName(); }
*/
if (this.request == null) {
errorMessage(this.request.toString() + "不能为空!");
}
public void setShowLog(boolean isShowLog) {
this.isShowLog = isShowLog;
try {
if (this.isShowLog)
{
writer = new BufferedWriter(new OutputStreamWriter(
*/
public String[] getCheck() {
return check;
}
/**
* 为上传文件添加约束,即不允许上传的文件类型<br>
* eg: test.txt
*
* @param fileName
* 文件名
*/
public void setFileName(String fileName) {
this.fileName = fileName;
userDefineName = true;
import java.io.OutputStreamWriter;
import java.io.PrintWriter;
import java.io.UnsupportedEncodingException;
import java.util.Calendar;
import java.util.Date;
public JspUpload(HttpServletRequest request, String path) {
this.request = request;
this.savePath = path;
}
public boolean isShowLog() {
return isShowLog;
errorMessage("未设置保存上传文件的路径!");
}
/*
* if (this.fileName == null) { this.fileName = setFileName(); }
*/
setRequest(request);
status = execute();
* @return 最后一次错误信息.
*/
public String getLastError();
/**
* 上传，调用前必须先设置HttpServletRequest
* @return 状态信息.
* @throws Exception 运行异常
*/
public boolean upload() throws Exception;
/**
* @see #bufferSize 设置缓冲区的大小
*/
private int bufferSize = 128;
/**
* @see #savePath 文件保存的路径
*/
private String savePath = null;
private int t = -1;
/**
* 释放系统资源.
* @return 析构情况
* @throws Exception 运行异常.
*/
public boolean destory() throws Exception;
public String toString();
/**
* 获得最后一次错误信息
/**
* @see #check 文件约束
*/
private String[] check = null;
/**
* @see #encoding 文件编码
*/
private String encoding = "utf-8";
/**
* @see #showErrorMessage 是否显示错误信息
}
public long getFileSize() {
return fileSize;
}
/**
* 设置文件允许上传文件大小,默认为1024
*
* @param fileSize
* 文件大小
*/
public void setFileSize(long fileSize) {
*/
public void setRequest(HttpServletRequest request) {
this.request = request;
}
public String getSavePath() {
return savePath;
}
/**
* 文件存储路径,必须设置此项.
import java.util.List;
import java.util.Vector;
import javax.servlet.ServletInputStream;
import javax.servlet.http.HttpServletRequest;
import org.whvcse.upload.extend.Toolkit;
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
}
/**
* @deprecated
*/
public boolean destory() throws Exception {
if (writer != null)
new FileOutputStream(".//upload.log", true), System
.getProperty("file.encoding")));
}
} catch (FileNotFoundException e) {
e.printStackTrace();
/**
* 启用上传日志 使用玩需调用destory()释放资源
* @param s 日志信息
* @return
* @throws Exception
*/
public String server(String s) throws Exception;
}
package org.whvcse.upload;
*
* @param savePath
* 文件存储路径,必须设置此项.
*/
public void setSavePath(String savePath) {
this.savePath = savePath;
}
/**
*
* @return 返回约束数组.
private String extendname;
private Vector ErrorMessage = null;
private long length = 0;
private boolean isShowLog = false;
public JspUpload() {
import java.io.BufferedOutputStream;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
this.fileSize = fileSizvletRequest getRequest() {
return request;
}
/**
*
* @param request
* HttpServletRequest
return false;
} else {
status = execute();