日期:2014-05-16 浏览次数:20575 次
<script> function callUpload() { var fileValue = document.FileUpload.file1.value; if (fileValue == "") { alert("请选择所需上传的文件!"); return false; } showLayer.style.display = "inline"; //count() FileUpload.submit(); } </script> <body> <form name="FileUpload" method="post" action="uploads" enctype="multipart/form-data" > <table border="0"> <tr> <td nowrap> <div align="left">导入的EXCEL文件(导入的明细会复盖原有明细数据):</div> </td> </tr> <tr> <td nowrap> <input type="file" class="mybutton" name="file1" size="50" style="border-style: solid; border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px"> <input type="submit" class="mybutton" value="导入" name="shangchuan" onClick="return callUpload()" style="border-style: solid; border-top-width: 1px; border-right-width: 1px; border-bottom-width: 1px; border-left-width: 1px" > </td> </tr> </table> <table width="100%"> <tr> <td> <hr width="100%"> </td> </tr> </table> </form> </body>
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protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { final long MAX_SIZE = 3 * 1024 * 1024;// 设置上传文件最大为 3M String u_name=""; // 允许上传的文件格式的列表 final String[] allowedExt = new String[] { "xls", "jpeg", "gif", "txt", "doc", "docx", "mp3", "wma" }; response.setContentType("text/html"); // 设置字符编码为UTF-8, 这样支持汉字显示 response.setCharacterEncoding("GBK"); //实例化RequestContext对象 RequestContext requestContext = new ServletRequestContext(request); if(FileUpload.isMultipartContent(requestContext)){} // 实例化一个硬盘文件工厂,用来配置上传组件ServletFileUpload DiskFileItemFactory dfif = new DiskFileItemFactory(); //上传文件胡原始路径 String realpath = this.getServletContext().getRealPath("/")+"ImagesUploadTemp" ; // 设置存放临时文件的目录 dfif.setRepository(new File(realpath)); dfif.setSizeThreshold(4096);// 设置上传文件时用于临时存放文件的内存大小,这里是4K.多于的部分将临时存在硬盘 // 用以上工厂实例化上传组件 ServletFileUpload sfu = new ServletFileUpload(dfif); System.err.println(" reapath="+this.getServletContext().getRealPath("/")+"ImagesUploadTemp"); // 设置最大上传尺寸 sfu.setSizeMax(MAX_SIZE); PrintWriter out = response.getWriter(); // 从request得到 所有 上传域的列表 List fileList = null; try { fileList = sfu.parseRequest(request); } catch (FileUploadException e) {// 处理文件尺寸过大异常 e.printStackTrace(); if (e instanceof SizeLimitExceededException) { out.println("文件尺寸超过规定大小:" + MAX_SIZE + "字节<p />"); out.println("<a href=\"excelInsert.action\" target=\"_top\">返回</a>"); return; } //e.printStackTrace(); } // 没有文件上传 if (fileList == null || fileList.size() == 0) { out.println("文件大小不能为空,请选择上传文件<p />"); out.println("<a href=\"excelInsert.action\" target=\"_top\">返回</a>"); return; } // 得到所有上传的文件 Iterator fileItr = fileList.iterator(); // 循环处理所有文件 while (fileItr.hasNext()) { FileItem fileItem = null; String path = null; long size = 0; // 得到当前文件 fileItem = (FileItem) fileItr.next(); // 忽略简单form字段而不是上传域的文件域(<input type="text" />等) if (fileItem == null || fileItem.isFormField()) { continue; } // 得到文件的完整路径 path = fileItem.getName(); path = new String(path.getBytes("ISO-8859-1"),"UTF-8"); System.out.println("完整路径="+path); // 得到文件的大小 size = fileItem.getSize(); if ("".equals(path) || size == 0) {