commons-fileupload-1.2.jar加Ext.ux.UploadDialog.js做上传的问题，求高手帮忙
0
悬赏园豆：5
[已解决问题]
解决于 2012-11-21 23:16
用commons-fileupload-1.2.jar加Ext.ux.UploadDialog.js做上传，结果文件是上传成功了，但UploadDialog.js控件提示的是上传失败，在网上查了好久，都说要返回一个json给UploadDialog.js，但是我太菜鸟了，没搞明白怎么返回这个值。
到底jsp要怎么样才能返回那个值供uploadDialog.js回掉呢？
贴出我的代码
调用的jsp代码：
上传附件： <input type="file"> <input type="button" id="btnUplod" onclick="uploadSw()" value="上传附件">
js代码：
function uploadSw() { debugger; dialog = new Ext.ux.UploadDialog.Dialog({ title: '文件上传' , url:'fileUpload.jsp' , post_var_name:'files', width : 450, height : 300, minWidth : 450, minHeight : 300, draggable : true , resizable : true , // autoCreate: true, constraintoviewport: true , // permitted_extensions:[ 'JPG' , 'jpg' , 'jpeg' , 'JPEG' , 'GIF' , // 'gif' , 'png' , 'PNG' ], modal: true , reset_on_hide: false , allow_close_on_upload: false , // 关闭上传窗口是否仍然上传文件 // upload_autostart: true //是否自动上传文件 upload_autostart: false }); dialog.show(); dialog.on( 'uploadsuccess' , onUploadSuccess); // 定义上传成功回调函数 dialog.on( 'uploadfailed' , onUploadFailed); // 定义上传失败回调函数 dialog.on( 'uploaderror' , onUploadFailed); // 定义上传出错回调函数 dialog.on( 'uploadcomplete' , onUploadComplete); // 定义上传完成回调函数 } // 文件上传成功后的回调函数 onUploadSuccess = function(dialog, filename, resp_data, record){ if(!resp_data.success){ alert(resp_data.message);// resp_data是json格式的数据 } }; // 文件上传失败后的回调函数 onUploadFailed = function(dialog, filename, resp_data, record){ alert(resp_data.message); }; // 文件上传完成后的回调函数 onUploadComplete = function(dialog){ dialog.hide(); };
jsp代码：
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ page import="org.apache.commons.fileupload.*"%> <%@ page import="org.apache.commons.fileupload.servlet.*"%> <%@ page import="org.apache.commons.fileupload.disk.*"%> <%@ page import="java.util.*"%> <%@ page import="java.io.*"%> <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> <html> <head> <meta http-equiv="Content-Type" content="text/html; charset=GB18030"> <title>File upload</title> </head> <body> <% request.setCharacterEncoding("UTF-8"); String uploadPath = "E:\\temp"; String path = request.getContextPath(); String strfilename=""; boolean isMultipart = ServletFileUpload.isMultipartContent(request); if (isMultipart == true) { try { FileItemFactory factory = new DiskFileItemFactory(); ServletFileUpload upload = new ServletFileUpload(factory); List<FileItem> items = upload.parseRequest(request);//得到所有的文件 Iterator<FileItem> itr = items.iterator(); while (itr.hasNext()) {//依次处理每个文件 FileItem item = (FileItem) itr.next(); String fileName = item.getName();//获得文件名，包括路径 if (fileName != null) { File fullFile = new File(item.getName()); File savedFile = new File(uploadPath, fullFile.getName()); strfilename = fullFile.getName(); item.write(savedFile); } out.print("'success':true,'fileName':'"+fileName+"','message':'success!'"); } out.print("upload succeed"); out.print("'success':true,'fileName':'fileName','message':'success!'"); response.getWriter().print("{success:true,message:'上传成功'}"); } catch (Exception e) { e.printStackTrace(); } } else { out.print("'success':true,'fileName':'fileName','message':'success!'"); response.getWriter().print("{success:true,message:'上传成功'}"); } %> </body> </html>
最佳答案
0
[code=Java] //我自己搞定了，用IEWatch调啊调，调啊调，终于找到了，原来是输出的不是纯json，而是带有html代码，删除所有html代码就OK了 <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <%@ page import="org.apache.commons.fileupload.*"%> <%@ page import="org.apache.commons.fileupload.servlet.*"%> <%@ page import="org.apache.commons.fileupload.disk.*"%> <%@ page import="java.util.*"%> <%@ page import="java.io.*"%> <%@ page import="org.springframework.web.context.WebApplicationContext"%> <%@ page import="com.boco.bomc.framework.web.ui.*"%> <%@ page import="com.boco.bomc.base.bean.UserBean"%> <%@ page import="com.boco.bomc.unicom.guizhou.job_gz.bean.*"%> <%@ page import="com.boco.bomc.unicom.guizhou.job_gz.*"%> <% request.setCharacterEncoding("UTF-8"); String uploadPath = "E:\\temp"; String path = request.getContextPath(); String strfilename=""; boolean isMultipart = ServletFileUpload.isMultipartContent(request); if (isMultipart == true) { try { FileItemFactory factory = new DiskFileItemFactory(); ServletFileUpload upload = new ServletFileUpload(factory); List<FileItem> items = upload.parseRequest(request);//得到所有的文件 Iterator<FileItem> itr = items.iterator(); while (itr.hasNext()) {//依次处理每个文件 FileItem item = (FileItem) itr.next(); String fileName = item.getName();//获得文件名，包括路径 if (fileName != null) { File fullFile = new File(item.getName()); File savedFile = new File(uploadPath, fullFile.getName()); strfilename = fullFile.getName(); item.write(savedFile); } //System.out.println("1---------------{success:true,message:'上传成功'}"); //response.resetBuffer(); //response.getWriter().print("{success:true,message:'上传成功'}"); } System.out.println("{2--------------success:true,message:'上传成功'}"); response.resetBuffer(); //response.reset(); //response.getWriter().print("{success:true,message:'上传成功'}"); out.print("{success:true,message:'上传成功'}"); } catch (Exception e) { e.printStackTrace(); //response.resetBuffer(); //System.out.println("3-----------{success:true,message:'上传成功'}"); } } else { //System.out.println("4----------------------{success:true,message:'上传成功'}"); //response.resetBuffer(); //response.getWriter().print("{success:true,message:'上传成功'}"); } %> [/code]
