JavaScript Uploadify文件上传实例

前言

java+javascript，没用上数据库，做了一个简简单单的jsp上传小功能，就是记录一下，对于这个小项目有什么建议，欢迎指出不足之处 (-_+)

PS:从我的包名看得出，我用过很多前辈们的代码，基本上都是东凑西拼，各个部分代码的出处就不一一列出了，能看就行！

运行环境：

Java EE + Tomcat 7.0

项目结构 (

src各部分代码

1. com.bijian.study.Upload.java

<div class="jb51code">
<pre class="brush:java;">
package com.bijian.study;

import java.io.File;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Iterator;
import java.util.List;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import org.apache.commons.fileupload.FileItem;
import org.apache.commons.fileupload.FileUploadException;
import org.apache.commons.fileupload.disk.DiskFileItemFactory;
import org.apache.commons.fileupload.servlet.ServletFileUpload;

import com.test.util.FileUtil;

@SuppressWarnings("serial")
public class Upload extends HttpServlet {

private final String SEP = File.separator;
private FileUtil fUtil = new FileUtil();

@SuppressWarnings("unchecked")
public void doPost(HttpServletRequest request,HttpServletResponse response)
throws ServletException,IOException {

String savePath = this.getServletConfig().getServletContext()
    .getRealPath("");
savePath = savePath + "/uploads/";

File f1 = new File(savePath);
System.out.println(savePath);
if (!f1.exists()) {
  f1.mkdirs();
}
DiskFileItemFactory fac = new DiskFileItemFactory();
ServletFileUpload upload = new ServletFileUpload(fac);
upload.setHeaderEncoding("utf-8");

String package_path = request.getParameter("save_path");
String remark = request.getParameter("remark");

List fileList = null;
try {
  fileList = upload.parseRequest(request);
} catch (FileUploadException ex) {
  return;
}
Iterator<FileItem> it = fileList.iterator();
String name = "";
String extName = "";
String sysDate = "";
String fileFrom = "";
while (it.hasNext()) {
  FileItem item = it.next();
  if (!item.isFormField()) {
    long size = item.getSize();
    String type = item.getContentType();
    name = item.getName();
    if (name == null || name.trim().equals("")) {
      continue;
    }
    if (name.lastIndexOf(".") >= 0) {
      extName = name.substring(name.lastIndexOf("."));
    }
    File file = null;
    do {
      file = new File(savePath + name + extName);
    } while (file.exists());
    File saveFile = new File(savePath + name);
    fileFrom = saveFile.getAbsolutePath();
    Date now = new Date();
    SimpleDateFormat dateFormat = new SimpleDateFormat(
        "yyyy/MM/dd HH:mm:ss");
    sysDate = dateFormat.format(now);
    try {
      item.write(saveFile);
    } catch (Exception e) {
      e.printStackTrace();
    }
  }
}
remark = ChangeDeocode(remark);
package_path = ChangeDeocode(package_path);

String keep_path = "C:" +SEP+ package_path+SEP+name;
String save_path = "C:" +SEP+ package_path;
if(!fUtil.isFileExist(save_path)){
  fUtil.mkDir("C:" +SEP+ package_path);
}

fUtil.copyFile(fileFrom,keep_path);
if(fUtil.isFileExist(keep_path)){
  fUtil.appendMethod(name + "|" + sysDate + "|" + remark+"|"+save_path);
}
response.getWriter().print(name + "\\" + sysDate + "\\" + remark);

}

public String ChangeDeocode(final String dataStr) {
String ToDeocode = "";
if (dataStr.contains("%")) {
char[] charArray = dataStr.toCharArray();
int ToChangeIndex = 0;

  for (int i = 0; i < charArray.length; i++) {
    if (i <= ToChangeIndex && i != 0) {
      continue;
    } else {
      if (charArray[i] == '%' && charArray[i + 1] == 'u'
          && i + 5 < charArray.length) {
        char[] tempArray = new char[] { charArray[i],charArray[i + 1],charArray[i + 2],charArray[i + 3],charArray[i + 4],charArray[i + 5] };
        ToDeocode += decodeUnicode(String.valueOf(tempArray));
        ToChangeIndex = i + 5;
      } else {
        ToDeocode += charArray[i];
        continue;
      }
    }
  }
}
return ToDeocode;

}

public String decodeUnicode(final String dataStr) {
int start = 0;
int end = 0;
final StringBuffer buffer = new StringBuffer();
while (start > -1) {
end = dataStr.indexOf("\u",start + 2);
String charStr = "";
if (end == -1) {
charStr = dataStr.substring(start + 2,dataStr.length());
} else {
charStr = dataStr.substring(start + 2,end);
}
char letter = (char) Integer.parseInt(charStr,16); // 16进制parse整形字符串。
buffer.append(new Character(letter).toString());
start = end;
}
return buffer.toString();
}
}