上传控件uploadify

下载地址

http://www.uploadify.com/

1, jsp页面

<td><div id="uploadBtn"><input type="file" name="testUploadify" id="<span style="font-family: Arial, Helvetica, sans-serif;">testUploadify</span><span style="font-family: Arial, Helvetica, sans-serif;">"/></div></td></span>
<td colspan="1"><div id="fileQueue"></div></td>

有个按钮负责上传,还有个fileQueue负责显示信息

2, js层

$("#testUploadify").uploadify({//对应jsp的id
	'uploader'          : '../js/uploadify/uploadify.swf',                                   //控件flash
	'script'            : 'upload.do',													 	//后台上传时执行的函数
	'scriptData'		:{'type': 'testFile1' , 'id':$("#id").val()},						//执行时的参数
	'method':'get',																			//方法
	'cancelImg'         : '../js/uploadify/cancel.png',                                     //取消按钮图片
	'folder' 		    : 'uploadfile',                                                     //上传的文件夹
	'queueID'           : 'fileQueue',                                             			//存放信息的那个
	'queueSizeLimit'    : 1,                                                                //允许几个文件
	'auto'              : true,                                                             //自動上传(选择文件后就上传还是submit时上传)
	'multi'             : false,                                                            //允许多个文件
	'buttonText'        : '',                                                               //按钮的文字,好像没啥用
	'buttonImg'		    : '../img/buttonflash.jpg',                                         //上传按钮图片
	'width'			    : 60,                                                               //上传按钮WIDTH
	'height'		    : 22,                                                               //上传按钮HEIGHT
	'removeCompleted'   : false,                                                            //上传完成后信息消失
	'sizeLimit'  		: 10485760,					                                    	//大小限制
	'onSelect' 			: function(event,ID,fileObj) {										//选择文件的时候
		
		if(fileObj.size > 10485760) {
			alert("文件太大。");
			return false;
		}
		
		if(fileObj.name.length > 100) {
			alert("文件名太长。");
			return false;
		}
		
	},
	'onComplete': function (event, ID, fileObj, response, data) {                           //文件上传完成的时候  
		var filename = fileObj.name;  
		var filePath = fileObj.filePath;
		var tempPath = response;
		tempPath = tempPath.replace("//","/");
		filePath = filePath.replace(""+filename+"","");
		filePath = filePath.replace("\jsp","");
		filePath = filePath.replace("//","/");
		var attachFileSize = 0;
		if(fileObj.size >= 1048576) {
			attachFileSize = fileObj.size/1048576;
			attachFileSize = attachFileSize.toFixed(2) +" MB";
		} else if(fileObj.size < 1048576 && fileObj.size >= 1024) {
			attachFileSize = fileObj.size/1024;
			attachFileSize = attachFileSize.toFixed(2) +" KB";
		} else {
			attachFileSize = fileObj.size;
			attachFileSize = attachFileSize.toFixed(2) +" Byte";
		}
		
		$("#attachPath").val(filePath);
		
		
	},
	'onCancel': function (event, ID, fileObj, response, data) {//取消时执行
		$.ajax({
			type     : "POST",
			url      : "deleteFile.do",
			async    : true,
			dataType : "String",
			data     : {
				fileByte       : $("#fileByte").val(),
			}, 
		});
	},
});

3, 后台

上传用controller

@Controller
public class AttachUploadController extends HttpServlet{

	private static Logger logger = LoggerFactory.getLogger(AttachUploadController.class);

	/**
	 * 
	 */
	private static final long serialVersionUID = -4991251629513260746L;

	//
	@Autowired
	private AttachDao AttDao;

	//创建文件夹等
	@RequestMapping(value = "*/beforeUpload.do")
	public void uploadMain(HttpServletRequest request,HttpServletResponse response) throws IOException {

		try {

			HttpSession session = request.getSession(); 
			if(session.getAttribute("userId")==null){
				response.getWriter().print("login");
			}else{
				String userId=session.getAttribute("userId").toString();

				//设定文件路径
				String savePath = request.getSession().getServletContext().getRealPath("/");
				savePath = savePath + "/uploadfile/"+userId+"/";
				
				File file = new File(savePath); 
				if (!file.exists()){
					file.mkdirs();
				}else{
					deleteDirectory(savePath);
					file.mkdirs();
				}
			}
		} catch (Exception e) {

			Common.logTrace(logger, e);
			response.setContentType("text/html;charset=utf-8");
			response.getWriter().print("<script lanuage=javascript>alert('" + Common.getMessage("EXC00004") + "');location='javascript:history.go(-1)'</script>");

		}
	}


	//删除指定目录夏所有文件
	public boolean deleteDirectory(String sPath) {  
		File dirFile = new File(sPath);  
		boolean flag = true;  
		File[] files = dirFile.listFiles();  
		if(files!=null){
			for (int i = 0; i < files.length; i++) {  
				//删除子文件
				if (files[i].isFile()) {  
					flag = deleteFile(files[i].getAbsolutePath());  
					if (!flag) break;  
				} //删除子文件夹
				else {  
					flag = deleteDirectory(files[i].getAbsolutePath());  
					if (!flag) break;  
				}  
			} 
		}
		return true;  
	}

	//删除文件
	public boolean deleteFile(String sPath) {
		boolean flag = false;
		File file = new File(sPath);
		// 删除文件
		if (file.isFile() && file.exists()) {
			file.delete();
			flag = true;
		}
		return flag;
	}

	@SuppressWarnings("unchecked")
	@RequestMapping(value = "*/upload.do")
	public void uploadPost(HttpServletRequest request, HttpServletResponse response) throws IOException {

		try {

			//session中取得数据
			HttpSession session = request.getSession(); 
			if(session.getAttribute("userId")==null){
				response.getWriter().print("login");
			}else{
				String userId=session.getAttribute("userId").toString();
				String filetype = request.getParameter("type");//js里面传来的参数

				//ファイルのパスを設定する
				String savePath = request.getSession().getServletContext().getRealPath(Constant.STR_SLUSH);
				savePath = savePath + "/uploadfile/"+userId+"/"+filetype;
				File file = new File(savePath+"/temp/"); 
				if (!file.exists()){
					file.mkdirs();
				}else{
					deleteDirectory(savePath);
					file.mkdirs();
				}

				DiskFileItemFactory fac = new DiskFileItemFactory();
				ServletFileUpload upload = new ServletFileUpload(fac);

				//设置文件属性
				upload.setHeaderEncoding("utf-8");

				//生成文件名与尾椎
				@SuppressWarnings("rawtypes")
				List fileList = null;
				try {
					fileList = upload.parseRequest(request);
				} catch (FileUploadException ex) {
					return;
				}
				Iterator<FileItem> it = fileList.iterator();
				String name = "";
				while (it.hasNext()) {
					FileItem item = it.next();
					if (!item.isFormField()) {
						name = item.getName();
						long size = item.getSize();
						String type = item.getContentType();
						System.out.println(type +":"+ size);

						if (name == null || name.trim().equals("")) {
							continue;
						}

						File saveFile = new File(savePath + "/" + name);

						try {
							item.write(saveFile);

						} catch (Exception e) {
							e.printStackTrace();
						}
					}
				}
				response.getWriter().print(savePath + "/" + name);
			}
		} catch (Exception e) {

			Common.logTrace(logger, e);
			response.setContentType("text/html;charset=utf-8");
			response.getWriter().print("<script lanuage=javascript>alert('" + Common.getMessage("EXC00004") + "');location='javascript:history.go(-1)'</script>");

		}
	}

}

下载用Controller

@SuppressWarnings("resource")
    @RequestMapping(value = "*/download.do")
	@ResponseBody
	public Map<String, Object> doGet(HttpServletRequest request, HttpServletResponse response) throws IOException {

		Map<String, Object> map = new HashMap<String, Object>();
		try {
			
			//取得文件
			String savepath = request.getSession().getServletContext().getRealPath("/");//取得服务器主路径
			String filename = request.getParameter("FileName");
			String filepath = Common.getFilepath(request.getParameter("FilePath"));//取得路径
			File file = new File(savepath+filepath+"/"+filename);
			
			if(file.exists())
			{
				//设置返回属性
				response.setContentType(CONTENT_TYPE);
				response.setContentType("application/x-msdownload");
				response.setContentLength((int)file.length());
				response.setHeader("Content-Disposition", "attachment;filename=" + new String(filename.getBytes("utf-8"), "iso-8859-1"));     

				//从InputStream生成BufferedInputStream
				BufferedInputStream buff = new BufferedInputStream(new FileInputStream(file));

				//读取文件
				byte[] b = new byte[2048];
				long k = 0;

				OutputStream myout = response.getOutputStream();
				while(k < file.length()){
					int j = buff.read(b,0,2048);
					k+=j;
					myout.write(b,0,j);
				}

				//关闭流 
				myout.flush();
				
				return map;
			} else {
				
				map.put("errorMessage", "文件不存在");
				
				return map;
			}
		} catch (Exception e) {
			
			Common.logTrace(logger, e);
			
			map.put("errorMessage", "意料之外的错误");
			
			return map;
		}
	}

关于一个页面有多个uploadify控件,设置为非自动上传

发现上传的顺序不可控制,(不遵循jQuery('#uploadify').uploadify('upload','*');执行先后)

但貌似可以控制全部上传完毕后再进行页面跳转?几个uploadify里最后都执行submit()也没问题