文本框获取焦点，将光标移动到最末端及普通上传下载

  //文本框获取焦点，将光标移动到最末端

    $("#textId").focus(function(){

       var textNode = document.getElementById("textId"); 

       var count = textNode.value.length;            

       var text = textNode.createTextRange();            

       text.moveStart('character',count);             

       text.collapse(true);           

       text.select();    

 });

//上传下载控件

<script type="text/javascript" src="../js/jquery.form.js"></script>

<span class="cgreen pl5 i18ntitle" title="service.batch.upload.file">                      

 <form id="upLoadServiceForm"  action="/ssp/ui/upAndDownload?moduleFlag=cusBatchSend&operFlag=upload" method="post" ENCTYPE="multipart/form-data">                         

   <fieldset >                            

      <input type="file" name="filePath" id="filePath" style="width:300px"/>                         

  </fieldset>                       

</form>

</span><span class="pl15"><a href="#" id="upLoadServiceFile" class="ssp_btn_01"><span class="i18nsrc">pon.button.upload</span></a></span>

 

  //上传文件按钮  $("#upLoadServiceFile").on("click",function(){

      var upLoadServiceForm = $('#upLoadServiceForm');

      var uploadFilePath = $("#filePath").val();

      if("" == uploadFilePath || "undefined" == uploadFilePath)     

      {          

          showAlertDialog(getMsgSrc("select.import.obj"), 0, okHandler);          

          return;     

       }

       var options = {     

             dataType : "json",       

             success : function(data) {

             if('successful' == data.result)         

             {             

                 showAlertDialog(getMsgSrc("service.upload.success"), 0, okHandler);                               

                //上传成功，将文件名作为全局变量保存             

                uploadFileName = data.content;

              }         

             if('failed' == data.result)         

             {             

                  showAlertDialog(data.content, 0, okHandler);         

             }       

        },     

       error : function(data)

       {         

          showAlertDialog(getMsgSrc("databaseError.msg"), 2, okHandler);       

       }

     };

     upLoadServiceForm.ajaxSubmit(options);

     return !1; 

});

 

private void upLoadBatchService(HttpServletRequest request, String savepath)

{

        PrintWriter writer = response.getWriter();

        boolean isMultipart = ServletFileUpload.isMultipartContent(request);

        // 文件上传的部分       

        if (isMultipart)       

        {           

            FileItemFactory factory = new DiskFileItemFactory();           

            ServletFileUpload upload = new ServletFileUpload(factory);

            // 得到每个表单域，暂时将它们都当做FileItem           

            List<FileItem> fileItems = null;           

            try           

            {               

                  upload.setFileSizeMax(MAX_FILE_SIZE);               

                  fileItems = (List<FileItem>) upload.parseRequest(request);           

             }           

             catch (FileUploadException e)           

             {               

                 writer.write(JSONUtil.getResultStr(AsConst.ResultValue.FAILED, ResourceManager.getRes("upAndDownload.max.size.prompt") +" "+ MAX_FILE_SIZE/(1024*1024) + " M"));

                writer.flush();               

                writer.close();          

             }

            String uploadFileName = "";

            // 对每个表单域进行处理           

            for (FileItem fileItem : fileItems)           

            {               

                 // 判断每个item是否是文件上传的域（若为 true，则是非文件上传控件的表单域）

                 if (!fileItem.isFormField())               

                 {                   

                     try                   

                     {                       

                                 String fileName = fileItem.getName();                       

                                 fileName = fileName.substring(fileName.lastIndexOf("\\") + 1, fileName.length());

                                 uploadFileName = fileName;

                                 File dir = new File(FileUtil.getIEMPHome() + savepath);

                                  // 如果路径不存在，则直接创建                       

                                 if (!dir.exists())                       

                                 {                          

                                            dir.mkdirs();                       

                                 }

                                 File filePath = new File(FileUtil.getIEMPHome() + savepath + fileName);                      

                                 // 保存上传的文件到指定的目录

                                 fileItem.write(filePath);

                                 FileUtil.setFileSecurityPermission(FileUtil.getIEMPHome() + savepath + fileName);

                    }

                    catch (Exception e)

                    {

                        writer.write(JSONUtil.getResultStr(AsConst.ResultValue.FAILED, e.getMessage()));

                        writer.flush();

                        writer.close();

                        return;

                    }

                    // 当前只支持单文件上传

                }

            }

            writer.write(JSONUtil.getResultStr(AsConst.ResultValue.SUCCESSFUL, uploadFileName));

            writer.flush();

            writer.close();

        }

    }

 

//下载文件

private void dLoadBatchService(HttpServletResponse response, HttpServletRequest request, PrintWriter writer,

            String savepath, String fName, String isSecondReq) throws IOException, MsgException

    {

        // 清空response

        response.reset();

        String fileName = "";

        String browser = request.getHeader("USER-AGENT");

        // 判断是ie浏览器

        if (browser.contains("MSIE"))

        {

            fileName = URLEncoder.encode(fName, "utf-8");

            fileName = fileName.replaceAll("\\+", "%20");

            fileName = new String(fileName.getBytes("gb2312"), "ISO8859-1");

        }

        // 判断是谷歌浏览器

        if (browser.contains("Chrome"))

        {

            fileName = new String(fName.getBytes("utf-8"), "ISO8859-1");

        }

        response.setHeader("Content-disposition", "attachment;filename=" + fileName);

        response.setContentType("text/html;charset=" + RESOURCE_CHAR_SET);

        // 如果是第一次请求，将成功与否结果返回给前台ajax

        if (null == isSecondReq || "".equals(isSecondReq))

        {

            writer.write(JSONUtil.getResultStr(AsConst.ResultValue.SUCCESSFUL));

            return;

        }

        OutputStream out = null;

        // 从服务器端读取文件

        File file = new File(FileUtil.getIEMPHome() + savepath + fName);

        FileInputStream fis = null;

        out = response.getOutputStream();

        try

        {

            fis = new FileInputStream(file);

            // byte缓存数组

            byte[] b = new byte[1024];

            int len = -1;// 每次读取的字节数

            // 输出流 到客户端

            while ((len = fis.read(b)) != -1)

            {

                out.write(b, 0, len);

            }

        }

        catch (FileNotFoundException e)

        {

            // 定义错误码找不到文件

            throw new MsgException(ErrorCode.DOWNLOAD_FILE_ERRORCODE);

        }

        finally

        {

            if (null != writer)

            {

                fis.close();

                writer.flush();

                writer.close();

            }

        }

    }