【uploadify3.1使用二】批量文件、图片上传
1、uploadify3.1的使用方式有别与2.x的版本，3.1版本已经把swfobject.js 给嵌入jquery.uploadify-3.1.min.js中，
2、引入资源文件
<link rel="stylesheet" href="uploadify/uploadify.css" type="text/css"></link> <script type="text/javascript" src="uploadify/jquery-1.7.2.min.js"></script> <script type="text/javascript" src="uploadify/jquery.uploadify-3.1.min.js"></script>
3、头部写入
<script type="text/javascript">
$(function() {
$("#multiple_file_upload").uploadify({
'height' : 27,
'width' : 80,
'buttonText' : '浏 览',
'swf' : '<%=path%>/uploadify/uploadify.swf',
'uploader' : '<%=path%>/servlet/UploadifySerlet',
'auto' : false,
'fileTypeExts' : '*.jpg;*.png;*.gif;*.bmp',
'formData' : {'userName':'','qq':''},
'onUploadStart' : function(file) {
//$("#file_upload").uploadify("settings", "formData", {'userName':name,'qq':qq});
//$("#file_upload").uploadify("settings", "qq", );
}
});
});
</script>
4、body中写入
<body>
<input type="file" name="uploadify" id="multiple_file_upload" />
<hr>
<a href="javascript:$('#multiple_file_upload').uploadify('upload','*')">开始上传</a>
<a href="javascript:$('#multiple_file_upload').uploadify('cancel', '*')">取消所有上传</a>
</body>
5、后台代码
package com.yangpan.uploadify;
import java.io.File;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.io.PrintWriter;
import java.text.SimpleDateFormat;
import java.util.Arrays;
import java.util.Date;
import java.util.Iterator;
import java.util.List;
import java.util.Random;
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;
public class UploadifySerlet extends HttpServlet
{
/**
*
*/
private static final long serialVersionUID = 1L;
// 上传文件的保存路径
protected String configPath = "attached/";
protected String dirTemp = "attached/temp/";
protected String dirName = "file";
public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
{
this.doPost(request, response);
}
public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
{
request.setCharacterEncoding("UTF-8");
response.setContentType("text/html; charset=UTF-8");
PrintWriter out = response.getWriter();
// 文件保存目录路径
String savePath = this.getServletContext().getRealPath("/") + configPath;
// 临时文件目录
String tempPath = this.getServletContext().getRealPath("/") + dirTemp;
SimpleDateFormat sdf = new SimpleDateFormat("yyyyMM");
String ymd = sdf.format(new Date());
savePath += "/" + ymd + "/";
// 创建文件夹
File dirFile = new File(savePath);
if (!dirFile.exists())
{
dirFile.mkdirs();
}
tempPath += "/" + ymd + "/";
// 创建临时文件夹
File dirTempFile = new File(tempPath);
if (!dirTempFile.exists())
{
dirTempFile.mkdirs();
}
DiskFileItemFactory factory = new DiskFileItemFactory();
factory.setSizeThreshold(20 * 1024 * 1024); // 设定使用内存超过5M时，将产生临时文件并存储于临时目录中。
factory.setRepository(new File(tempPath)); // 设定存储临时文件的目录。
ServletFileUpload upload = new ServletFileUpload(factory);
upload.setHeaderEncoding("UTF-8");
try
{
List items = upload.parseRequest(request);
Iterator itr = items.iterator();
while (itr.hasNext())
{
FileItem item = (FileItem) itr.next();
String fileName = item.getName();
long fileSize = item.getSize();
if (!item.isFormField())
{
String fileExt = fileName.substring(fileName.lastIndexOf(".") + 1).toLowerCase();
SimpleDateFormat df = new SimpleDateFormat("yyyyMMddHHmmss");
String newFileName = df.format(new Date()) + "_" + new Random().nextInt(1000) + "." + fileExt;
try
{
File uploadedFile = new File(savePath, newFileName);
OutputStream os = new FileOutputStream(uploadedFile);
InputStream is = item.getInputStream();
byte buf[] = new byte[1024];// 可以修改 1024 以提高读取速度
int length = 0;
while ((length = is.read(buf)) > 0)
{
os.write(buf, 0, length);
}
// 关闭流
os.flush();
os.close();
is.close();
System.out.println("上传成功！路径：" + savePath + "/" + newFileName);
out.print("1");
}
catch (Exception e)
{
e.printStackTrace();
}
}
else
{
String filedName = item.getFieldName();
// if (filedName.equals("userName"))
// {
// name = item.getString();
// }
// else
// {
// qq = item.getString();
// }
System.out.println("FieldName：" + filedName);
System.out.println("String：" + item.getString());
// System.out.println("String()："+item.getString(item.getName()));
System.out.println("===============");
}
}
}
catch (FileUploadException e)
{
// TODO Auto-generated catch block
e.printStackTrace();
}
out.flush();
out.close();
}
}
6、效果
打完收工，比较喜欢step by step，呵呵，太过程化了，没有思维。哈哈