一个下载文件的问题，各位帮忙看下。。。急急急
0
[待解决问题]
需求：将数据导入到Excel里，并下载。
问题所在：在IE下，会下载当前页面的源代码。
火狐下正常
代码：
1 /// <summary> 2 /// 数据导出到Excel 3 /// </summary> 4 /// <param name="table">数据表</param> 5 /// <param name="context">上下文对象</param> 6 /// <param name="fileName">文件名</param> 7 public static void RenderToExcelBrowser(DataTable table, HttpContext context, string fileName) 8 { 9 MemoryStream ms = new MemoryStream(); 10 using (table) 11 { 12 IWorkbook workbook = new XSSFWorkbook(); 13 ISheet sheet = workbook.CreateSheet(); 14 IRow headerRow = sheet.CreateRow(0); 15 foreach (DataColumn column in table.Columns) 16 headerRow.CreateCell(column.Ordinal).SetCellValue(column.Caption); 17 18 // handling value. 19 int rowIndex = 1; 20 foreach (DataRow row in table.Rows) 21 { 22 IRow dataRow = sheet.CreateRow(rowIndex); 23 foreach (DataColumn column in table.Columns) 24 { 25 dataRow.CreateCell(column.Ordinal).SetCellValue(row[column].ToString()); 26 } 27 rowIndex++; 28 } 29 workbook.Write(ms); 30 ms.Flush(); 31 }//.xlsx 32 fileName=fileName+"-"+ DateTime.Now.ToString("yyyyMMddHHmmssfff") + ".xlsx"; 33 34 context.Response.ContentType = "application/octet-stream"; 35 context.Response.AddHeader("Content-Disposition", "attachement;filename=" + fileName); 36 context.Response.AddHeader("Content-Length", ms.ToArray().Length.ToString()); 37 38 //context.Response.AddHeader("Content-Disposition", "attachment;fileName=" + fileName); 39 //System.Web.HttpContext.Current.Response.AddHeader("Content-Length", ms.ToArray().Length.ToString()); 40 context.Response.BinaryWrite(ms.ToArray()); 41 }
所有回答(2)
0
一个简单的通过JSP中把数据导入到Excel，并出现下载对话框
ExcelJSPHTML
主要是通过文件流的方式，这个方法不是很好，如有更好的方法，还希望多多交流哦！
<%@ page contentType="text/html;charset=gb2312" %>
<%@ page import="java.lang.*"%>
<%
try{
response.setContentType("Application/msexcel");
response.setHeader("Content-Disposition", "attachment;filename=test.xls");
StringBuffer cont=new StringBuffer("");
%>
<HTML>
<HEAD>
<META http-equiv="Content-Style-Type" content="text/css">
</HEAD>
<BODY>
<br/><br/><br/>
<%
cont.append("<table width='100%' border='1'>\r\n");
cont.append("<tr>\r\n");
cont.append("<td height='19'>字段一</td>\r\n");
cont.append("<td height='19'>字段二</td>\r\n");
cont.append("<td height='19'>字段三</td>\r\n");
cont.append("<td height='19'>字段四</td>\r\n");
cont.append("</tr>\r\n");
cont.append("<tr>\r\n");
cont.append("<td>"+"xxxxxxxxxxxxxxxxxxxxxxxx" +" </td>\r\n");
cont.append("<td>"+"xxxxxxxxxxxxxxxxxxxxxxxx" +" </td>\r\n");
cont.append("<td>"+"xxxxxxxxxxxxxxxxxxxxxxxx" +" </td>\r\n");
cont.append("<td>"+"xxxxxxxxxxxxxxxxxxxxxxxx" +" </td>\r\n");
cont.append("</tr>\r\n");
cont.append("<tr>\r\n");
cont.append("<td>"+"xxxxxxxxxxxxxxxxxxxxxxxx" +" </td>\r\n");
cont.append("<td>"+"xxxxxxxxxxxxxxxxxxxxxxxx" +" </td>\r\n");
cont.append("<td>"+"xxxxxxxxxxxxxxxxxxxxxxxx" +" </td>\r\n");
cont.append("<td>"+"xxxxxxxxxxxxxxxxxxxxxxxx" +" </td>\r\n");
cont.append("</table>\r\n");
response.getWriter().println(cont.toString());
response.getWriter().close();
}
catch (Exception e){
out.println(e.toString());
}
%>
</BODY>
</HTML>
参考 www.baidu30ok.com
0
1.先将数据导出到服务器
2.根据得到的服务器文件路径进行下载
string filePath=this.downLoadURL.Value;
filePath.Replace("\\","/");
string fileName = filePath.Substring(filePath.LastIndexOf('/')+1);//客户端保存的文件名
filePath = Server.MapPath(filePath);
//以字符流的形式下载文件
FileStream fs = new FileStream(filePath, FileMode.Open);
byte[] bytes = new byte[(int)fs.Length];
fs.Read(bytes, 0, bytes.Length);
fs.Close();
Response.ContentType = "application/octet-stream";
//通知浏览器下载文件而不是打开
Response.AddHeader("Content-Disposition", "attachment; filename=" + HttpUtility.UrlEncode(fileName, System.Text.Encoding.UTF8));
Response.BinaryWrite(bytes);
Response.Flush();
Response.End();
以上方式测试通过。
