asp.net 将数据导成Excel文件

思路:和word红头文件一样,采用xml格式的模板文件,再替换模板中设置好的标签就可以了.
参考网址:http://www.cnblogs.com/tzy080112/p/3413938.html
    public partial class ImportExcel : System.Web.UI.Page
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }

        protected void btnImport_Click(object sender, EventArgs e)
        {
            byte[] bytes = GetData(Server.MapPath(@"ExcelTemplateTpExcel.xml"), "");

            //实现下载
            Response.AddHeader("Content-Type", "application/octet-stream");
            Response.Buffer = true;
            Response.ContentType = "*/*";
            Response.AddHeader("Content-Disposition", "attachment;filename=" + System.Web.HttpUtility.UrlEncode("导出的文件.xls", System.Text.Encoding.UTF8));
            Response.AddHeader("Content-Length", bytes.Length.ToString());
            Response.BinaryWrite(bytes);
            Response.End();


        }

        public List<MyUser> LoadUser()
        {
            List<MyUser> li = new List<MyUser>();
            MyUser u1 = new MyUser();
            u1.Name = "snow";
            u1.StaffNo = "1234";
            MyUser u2 = new MyUser();
            u2.Name = "张山";
            u2.StaffNo = "200000";
            li.Add(u1);
            li.Add(u2);
            return li;
        }

        public byte[] GetData(string path, string tempName)
        {
            //实例化内存流
            MemoryStream fileStream = new MemoryStream();
            //写文件流
            StreamWriter fileWriter = new StreamWriter(fileStream);
            //读文件流
            StreamReader fileReader = new StreamReader(path, System.Text.Encoding.UTF8);
            //读取整个文件的内容
            string tempStr = fileReader.ReadToEnd();
            //得到要导出的信息
            //DataTable dt = airport.GetDataView();
            List<MyUser> li = this.LoadUser();

            //定义变量获取表的数据行数
            int rows = 0;
            //定义StringBuilder变量来存储字符串
            StringBuilder sb = new StringBuilder();
            //判断表是否有数据

            if (li.Count > 0)
            { 
                //给变量赋值
                rows = li.Count;
                int num = rows + 1;//此处1表示模板中表头的行数，且默认为1，可自行增加表头并定义
                if (tempStr.IndexOf("+#RowCount#+") > 0)
                {
                    tempStr = tempStr.Replace("+#RowCount#+", "" + num + "");
                }
                //开始循环生成标准字符串
                for (int i = 0; i < rows; i++)
                {
                    sb.Append("<Row>
"
                        + "<Cell><Data ss:Type="String">" + li[i].Name + "</Data></Cell>
"
                        + "<Cell><Data ss:Type="String">" + li[i].StaffNo + "</Data></Cell>
"
                        + "</Row>
");
                }
                if (tempStr.IndexOf("+#TableData#+") > 0)
                {
                    tempStr = tempStr.Replace("+#TableData#+", sb.ToString());
                }
            }
            fileWriter.WriteLine(tempStr);
            fileWriter.Flush();

            byte[] bytes = fileStream.ToArray();

            fileStream.Close();
            fileWriter.Close();
            fileReader.Close();

            return bytes;
        }
    }


    public class MyUser
    {
        public string Name
        {
            get;
            set;
        }

        public string StaffNo
        {
            get;
            set;
        }
    }