UploadDialog使用完整代码

1.导入uploaddialog需要的js库

附上下载地址，里面有所用到的方法的介绍

http://www.max-bazhenov.com/dev/upload-dialog-2.0/

1.首先创建dialog对象

var uploadDialog = Ext.create("Ext.ux.UploadDialog.Dialog", {

url:"uploadexl.do", //处理请求servletshadow : true,post_var_name:"uploadFiles", draggable:true, resizable:true, constraintoviewport:true, modal:true, reset_on_hide:false, allow_close_on_upload:false, upload_autostart:false, base_params:{}, post_var_name:"file", permitted_extensions:["xls"], //允许上传文件后缀});

2.编写各种状态响应的操作方法，并注册

onUploadSuccess = function (dialog, filename, resp_data, record) {Ext.Msg.alert("提示","文件已经上传完毕!");store.load();};onUploadFailed = function (dialog, filename, resp_data, record) {Ext.Msg.alert(resp_data.data);};onUploadComplete = function (dialog) {Ext.Msg.alert("提示","文件已经上传完毕!");uploadDialog.hide();store.load();};uploadDialog.on("uploadsuccess", onUploadSuccess);uploadDialog.on("uploadfailed", onUploadFailed);uploadDialog.on("uploaderror", onUploadFailed);uploadDialog.on("uploadcomplete", onUploadComplete);

3.编写uploadservlet，需要用到另外的jar包进行上传文件的读取，可以搜索org.apache.commons.fileupload进行下载导入即可。

package view;import java.io.File;import java.io.IOException;import java.util.Iterator;import java.util.List;import javax.servlet.ServletConfig;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.disk.DiskFileItemFactory;import org.apache.commons.fileupload.servlet.ServletFileUpload;import data.UserManagerDAO;public class UploadServlet extends HttpServlet {private static final long serialVersionUID = 1L;public static String uploadPath = "";public void init(ServletConfig config) throws ServletException {uploadPath = config.getServletContext().getRealPath("/") + "upload/";super.init(config);}@SuppressWarnings("deprecation")protected void doPost(HttpServletRequest request,HttpServletResponse response) throws ServletException, IOException {request.setCharacterEncoding("utf-8");response.setContentType("text/html;charset=UTF-8");try {DiskFileItemFactory factory = new DiskFileItemFactory();factory.setSizeThreshold(4096);File path = new File(uploadPath);if (!path.exists()) {path.mkdir();}factory.setRepository(path);ServletFileUpload upload = new ServletFileUpload(factory);upload.setSizeMax(2147483647L);List<FileItem> fileItems = null;fileItems = upload.parseRequest(request);Iterator<FileItem> i = fileItems.iterator();while (i.hasNext()) {FileItem fi = (FileItem) i.next();String fileName = fi.getName();int start = fileName.lastIndexOf("\\");String paths = fileName.substring(start + 1, fileName.length());System.out.println(fileName);fi.write(new File(uploadPath + paths));}File file = new File(uploadPath);uploadPath = uploadPath.replaceAll("/", "\\\\");String test[];test = file.list();for (int b = 0; b < test.length; b++) {String getfilename = uploadPath + test[b];getfilename = getfilename.replaceAll("\\\\", "/");if (getfilename.endsWith(".xls")) {UserManagerDAO.saveExcel(getfilename);}}response.getWriter().write("{success:true,message:'文件上传成功'}");} catch (Exception e) {System.out.println(e.getMessage() + " : " + e.getCause());response.getWriter().write("{success:false,message:'error...'}");}}}

4.完毕！