ASP.NET下将不规则的Excel导入数据库

protected void Button1_Click(object sender, EventArgs e)
2         {
3             if (FileUpload1.HasFile == false)//HasFile用来检查FileUpload是否有指定文件
4             {
5                 Response.Write("<script>alert('请您选择Excel文件')</script> ");
6                 return;//当无文件时,返回
7             }
8             string IsXls = System.IO.Path.GetExtension(FileUpload1.FileName).ToString().ToLower();//System.IO.Path.GetExtension获得文件的扩展名
9             if (IsXls != ".xls")
10             {
11                 if(IsXls != ".xlsx")
12                 {
13                     Response.Write("<script>alert('只可以选择Excel文件')</script>");
14                     return;//当选择的不是Excel文件时,返回
15                 }
16             }
17             string filename = FileUpload1.FileName;              //获取Execle文件名  DateTime日期函数
18             string savePath = Server.MapPath(("upload\\") + filename);//Server.MapPath 获得虚拟服务器相对路径
19             FileUpload1.SaveAs(savePath);                        //SaveAs 将上传的文件内容保存在服务器上
20             DataSet ds = ExcelSqlConnection(savePath, filename,IsXls);           //调用自定义方法
21             DataRow[] dr = ds.Tables[0].Select();            //定义一个DataRow数组
22             int rowsnum = ds.Tables[0].Rows.Count;
23             if (rowsnum == 0)
24             {
25                 Response.Write("<script>alert('Excel表为空表,无数据!')</script>");   //当Excel表为空时,对用户进行提示
26             }
27             else
28             {
29                 for (int i = 0; i < dr.Length/3; i++)//循环根节点，根据模板判断，根节点数等于行数/3（dr.Length/3）
30                 {
31                     string DocumentParentClassified = dr[i*3]["Document Parent Classified"].ToString();
32                     cD.AddparentclassifiedDate(((i * 3)+1), DocumentParentClassified);//向根节点表中插入数据
33                     for (int j = i * 3; j < (i+1)*3; j++)//循环枝干节点
34                     {
35                         string DocumentChildClassified = dr[j]["Document Child Classified"].ToString();
36                         cD.AddchildclassifiedDate(((i * 3) + 1), j+1, DocumentChildClassified);//向枝干节点表中插入数据
37
38                         string S = dr[j]["S"].ToString();
39                         string M = dr[j]["M"].ToString();
40                         string L = dr[j]["L"].ToString();
41                         cD.AddclicktimesDate(j + 1, S, M, L);
42                         for (int k = 2; k <= 4; k++)//循环叶子节点
43                         {
44                             string DocumentDefiniteClassified = dr[j][k].ToString();
45                             if (DocumentDefiniteClassified == "")
46                             {
47                                 DocumentDefiniteClassified = "*";
48                             }
49                             int state = 1;
50                             int num = j*3 + k;
51                             cD.AdddefiniteclassifiedDate(((i * 3) + 1), j+1,num, DocumentDefiniteClassified, state);//向叶子节点表中插入数据
52                         }
53                     }
54                 }
55                 Response.Write("<script>alert('Excle表导入成功!');</script>");
56             }
57         }
58
59         #region 连接Excel  读取Excel数据   并返回DataSet数据集合
60         /// <summary>
61         /// 连接Excel  读取Excel数据   并返回DataSet数据集合
62         /// </summary>
63         /// <param name="filepath">Excel服务器路径</param>
64         /// <param name="tableName">Excel表名称</param>
65         /// <returns></returns>
66         public static System.Data.DataSet ExcelSqlConnection(string filepath, string tableName,string isxls)
67         {
68             string strCon = "";
69             if (isxls == ".xls")
70             {
71                 strCon = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + filepath + ";Extended Properties='Excel 8.0;HDR=YES;IMEX=1'";
72             }
73             else
74             {
75                 strCon = "Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + filepath + ";Extended Properties='Excel 12.0;HDR=YES;IMEX=1'";
76             }
77             OleDbConnection ExcelConn = new OleDbConnection(strCon);
78             try
79             {
80                 string strCom = string.Format("SELECT * FROM [Test$]");
81                 ExcelConn.Open();
82                 OleDbDataAdapter myCommand = new OleDbDataAdapter(strCom, ExcelConn);
83                 DataSet ds = new DataSet();
84                 myCommand.Fill(ds, "[" + tableName + "$]");
85                 ExcelConn.Close();
86                 return ds;
87             }
88             catch
89             {
90                 ExcelConn.Close();
91                 return null;
92             }
93         }
94         #endregion