關於通過Excel批量導入數據庫的分析
阿新 • • 發佈：2017-10-18
man cnblogs return oid sel body 專業 mode opened 
前臺代碼
1 <body> 2 <form id="form1" runat="server"> 3 <div style=" margin:90px 600px;"> 4 <table id="table1" cellspacing="0" > 5 <tr> 6 <td>Excel文件模板</td> 7 <td> 8 《<a href="信息表.xlsx">標準信息表下載</a>》View Code9 </td> 10 </tr> 11 <tr> 12 <td> 13 選擇文件 14 </td> 15 <td> 16 <asp:FileUpload ID="fileupload" runat="server"/> 17 </td> 18 </tr> 19 <tr> 20<td> 21 上傳文件 22 </td> 23 <td> 24 <asp:Button ID="buttonUpload" runat="server" Text="文件上傳" OnClick="buttonUpload_Click"/> 25 <asp:Label ID="point" Text="" runat="server"></asp:Label> 26</td> 27 </tr> 28 <tr> 29 <td> 30 導入數據 31 </td> 32 <td> 33 <asp:Button ID="buttonImport" Text="導入數據" runat="server" OnClick="buttonImport_Click"/> 34 <asp:Label ID="Label1" runat="server" Text=""></asp:Label> 35 <asp:Label ID="Label2" runat="server" Text=""></asp:Label> 36 </td> 37 </tr> 38 </table> 39 <asp:Label ID="Label3" runat="server" Text=""></asp:Label> 40 </div> 41 </form> 42 </body>
在後臺通過與標準表的對比 把數據導入數據庫，如果已存在，則會更新數據庫的數據
代碼如下
1 //文件上傳 2 #region MyRegion 3 protected void buttonUpload_Click(object sender, EventArgs e) 4 { 5 buttonUpload.Enabled = true; 6 if (fileupload.HasFile)//判斷文件是否為空 7 { 8 try { 9 if (File.Exists(Server.MapPath("~/Upload/") + fileupload.FileName)) 10 { 11 File.Delete(Server.MapPath("~/Upload/") + fileupload.FileName); 12 } 13 if (TypeName(fileupload.FileName))//文件擴展名判斷 14 { 15 fileupload.PostedFile.SaveAs(Server.MapPath("~/Upload/") + fileupload.FileName);//文件保存 16 //判斷文件上傳格式是否正確 17 int IsRight = CompareXls(Server.MapPath("~/Upload/") + fileupload.FileName, fileupload.FileName); 18 if (IsRight == 0) 19 { 20 Label2.Text = null; 21 Label3.Text = null; 22 point.Text = "格式錯誤,請對比‘信息表導入標準表格.xlsx‘"; 23 } 24 else 25 { 26 Label2.Text = null; 27 Label3.Text = null; 28 point.Text = "文件上傳成功，請導入數據！"; 29 Label1.Text = fileupload.FileName; 30 } 31 } 32 else 33 { 34 Label2.Text = null; 35 Label3.Text = null; 36 point.Text = "導入文件格式不對！"; 37 } 38 } 39 catch(Exception){ 40 Label2.Text = null; 41 Label3.Text = null; 42 point.Text = "文件上傳時發生錯誤！"; 43 } 44 } 45 else 46 { 47 Label2.Text=null; 48 Label3.Text=null; 49 point.Text="上傳文件不能為空"; 50 } 51 } 52 #endregion 53 //判斷文件擴展名 54 #region MyRegion 55 public bool TypeName(string filename) 56 { 57 String type = filename.Substring(filename.LastIndexOf(".") + 1); 58 if (type == "xls" || type == "xlsx") 59 { 60 return true; 61 } 62 else 63 { 64 return false; 65 } 66 67 } 68 #endregion 69 //判斷文件上傳格式 70 #region MyRegion 71 private int CompareXls(string filepath, string Sheet1name) 72 { 73 int isEqual = 1; 74 try 75 { 76 DataSet newXls, standardXls; 77 newXls = xsldata(filepath, ""); 78 standardXls = StanderXls(); 79 if (standardXls.Tables[0].Columns.Count != newXls.Tables[0].Columns.Count) 80 { 81 isEqual = 0; 82 } 83 else 84 { 85 string strnewXlsFields, strstandardXlsFields; 86 for (int i = 0; i < standardXls.Tables[0].Columns.Count; i++) 87 { 88 strstandardXlsFields = standardXls.Tables[0].Columns[i].ToString(); 89 strnewXlsFields = newXls.Tables[0].Columns[i].ToString(); 90 if (strnewXlsFields != strstandardXlsFields) 91 { 92 isEqual = 0; 93 break; 94 } 95 } 96 } 97 } 98 catch (Exception e) 99 { 100 isEqual = 0; 101 } 102 return isEqual; 103 } 104 105 private DataSet StanderXls() 106 { 107 string Sheet1name = "Sheet1"; 108 string strCon = "Provider=Microsoft.Ace.OleDb.12.0;;Data Source=" + Server.MapPath("~/import/") + "信息表.xlsx;Extended Properties=‘Excel 12.0;IMEX=1‘ ;"; 109 System.Data.OleDb.OleDbConnection Conn = new System.Data.OleDb.OleDbConnection(strCon); 110 string strCom = string.Format("SELECT * FROM [{0}$]", Sheet1name); 111 Conn.Open(); 112 System.Data.OleDb.OleDbDataAdapter myCommand = new System.Data.OleDb.OleDbDataAdapter(strCom, Conn); 113 DataSet ds = new DataSet(); 114 myCommand.Fill(ds); 115 Conn.Close(); 116 return ds; 117 } 118 119 private DataSet xsldata(string filepath, string Sheet1name) 120 { 121 if (Sheet1name == null || Sheet1name == "") 122 { Sheet1name = "Sheet1"; } 123 else 124 { Sheet1name = Sheet1name.Substring(0, Sheet1name.IndexOf(‘.‘)); } 125 string strCon = "Provider=Microsoft.Ace.OleDb.12.0;;Data Source=" + filepath + ";Extended Properties=‘Excel 12.0;IMEX=1‘ ;"; 126 System.Data.OleDb.OleDbConnection Conn = new System.Data.OleDb.OleDbConnection(strCon); 127 string strCom = string.Format("SELECT * FROM [{0}$]", Sheet1name); 128 Conn.Open(); 129 System.Data.OleDb.OleDbDataAdapter myCommand = new System.Data.OleDb.OleDbDataAdapter(strCom, Conn); 130 DataSet ds = new DataSet(); 131 myCommand.Fill(ds); 132 Conn.Close(); 133 return ds; 134 } 135 #endregion 136 //數據導入 137 #region MyRegion 138 protected void buttonImport_Click(object sender, EventArgs e) 139 { 140 string fp = Label1.Text; 141 if (string.IsNullOrEmpty(fp)) 142 { 143 point.Text = null; 144 Label2.Text = "你還未上傳文件，請先上傳文件！"; 145 Label3.Text = null; 146 } 147 else 148 { 149 ExcelToDataSource(Server.MapPath("~/upload/") + fp, ""); 150 Label1.Text = null; 151 } 152 } 153 //將數據從Excel轉換到數據源 154 private void ExcelToDataSource(string filepath, string sheet1name) 155 { 156 BLL.Test testBll = new BLL.Test(); 157 Model.Test testModel = new Model.Test(); 158 List<Model.Test> testlist = testBll.GetModelList(""); 159 DataSet ds = xsldata(filepath, ""); 160 DataTable dt = ds.Tables[0]; 161 DataRow dr = null; 162 int success = 0; 163 int count = 0; 164 int testCount = 0; 165 bool updatetest; 166 bool updateuserinfoflag; 167 for (int i = 0; i < dt.Rows.Count-1; i++) 168 { 169 success++; 170 count++; 171 dr = dt.Rows[i]; 172 updatetest = false; 173 if (!string.IsNullOrEmpty(dr[0].ToString())) 174 { 175 List<Model.Test> modellist = null; 176 success++; 177 testModel.Name = dr[0].ToString(); 178 testModel.Sex = dr[1].ToString(); 179 testModel.Age = Convert.ToInt32(dr[2].ToString()); 180 testModel.Password = dr[3].ToString(); 181 foreach (Model.Test item in testlist) 182 { 183 if (item.Name.Trim() == testModel.Name.Trim()) 184 { 185 testModel.ID = item.ID; 186 testBll.Update(testModel); 187 updatetest = true; 188 189 } 190 } 191 if (updatetest == false) 192 { 193 testBll.Add(testModel); 194 testCount++; 195 } 196 } 197 } 198 Label2.Text = "成功添加" + testCount + "行數據！" ; 199 if ((count) == dt.Rows.Count - 1) 200 { 201 Label3.Text = null; 202 } 203 else 204 { 205 Label3.Text = "請檢查" + Label3.Text + "的數據，其中的‘所在機構’、‘從事專業’、‘教師姓名’等是否為空或填寫有誤！"; 206 } 207 208 } 209 #endregionView Code
關於通過Excel批量導入數據庫的分析