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  • Excel导入到sql数据库中完整代码

    Excel导入SQL数据库完整代码
    2009年4月29日9:41:20

    Excel导入SQL数据库完整代码
    protected void studentload_Click(object sender, EventArgs e)
         {//批量添加学生信息
             SqlConnection conn = DB.dataBaseConn();//链接数据库
             conn.Open();
              try
              {
                 string fileurl = typename(studentFileUpload);//调用typename方法取得excel文件路径
                 DataSet ds = new DataSet();//取得数据集
                 ds = xsldata(fileurl);
                 int errorcount = 0;//记录错误信息条数
                 int insertcount = 0;//记录插入成功条数
                 int updatecount = 0;//记录更新信息条数
                  for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
                 {
                     string stuid = ds.Tables[0].Rows[i][0].ToString();
                     string stuname = ds.Tables[0].Rows[i][1].ToString();
                     string stusex = ds.Tables[0].Rows[i][2].ToString();
                     string zhuanye = ds.Tables[0].Rows[i][3].ToString();
                     string classname = ds.Tables[0].Rows[i][4].ToString();
                     if (stuid != "" && stuname != "" && stusex != "" && zhuanye != "" && classname != "")
                     {
                                       SqlCommand selectcmd = new SqlCommand("select count(*) from zy_class   where zhuanye='" + zhuanye + "'and classname='" + classname + "'", conn);
                         int count = Convert.ToInt32(selectcmd.ExecuteScalar());
                         if (count > 0)
                         {
                             SqlCommand selectcmd2 = new SqlCommand("select count(*) from stud where   stuid='" + stuid + "'", conn);
                             int count2 = Convert.ToInt32(selectcmd2.ExecuteScalar());
                             if (count2 > 0)
                             {
                                 SqlCommand updatecmd = new SqlCommand("update stud set   stuname='" + stuname + "',stusex='" + stusex + "',zhuanye='" + zhuanyei + "',classname='" + classname + "'   where stuid='" + stuid + "'", conn);
                                 updatecmd.ExecuteNonQuery();
                                 updatecount++;
                             }
                             else
                             {
                                 SqlCommand insertcmd= new SqlCommand("insert into stud    values('" + stuid + "','" + stuname + "','" + stusex + "','" + zhuanye + "','" + classname+ "')", conn);
                                 insertcmd.ExecuteNonQuery();
                                 insertcount++;
                             }
                         }
                         else
                         {
                             Response.Write("<script language='javascript'>alert('专业或班级信息有错!导入失败!请检查!');</script>");
                             break;  

                          }
                     }
                     else
                     {
                         errorcount++;
                     }
                 }
                 Response.Write("<script language='javascript'>alert('" + insertcount + "条数据导入成功!" + updatecount + "条数据更新成功!" + errorcount + "条数据部分信息为空没有导入!');</script>");
             }
             catch (Exception e)
             {
                 Response.Write("<script language='javascript'>alert('导入失败!');</script>");
             }
             finally
             {
                 conn.Close();
             }    
         }


    //把EXCEL文件上传到服务器并返回文件路径

    private String typename(FileUpload fileloads)
         {
             string fullfilename = fileloads.PostedFile.FileName;
             string filename = fullfilename.Substring(fullfilename.LastIndexOf("\\") + 1);
             string type = fullfilename.Substring(fullfilename.LastIndexOf(".") + 1);
             string murl = "";
             if (type == "xls")
             {
                 fileloads.PostedFile.SaveAs(Server.MapPath("excel") + "\\" + filename);
                 murl = (Server.MapPath("excel") + "\\" + filename).ToString();
             }
             else
             {
                 Response.Write("<script language='javascript'>alert('导入文件格式不对!');</script>");

             }
             return murl;
         }

       //

    把excel数据读入dataset返回l数据集

    private DataSet xsldata(string filepath)
         {
             string strCon = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + filepath + ";Extended Properties='Excel 8.0;IMEX=1'";
             System.Data.OleDb.OleDbConnection Conn = new System.Data.OleDb.OleDbConnection(strCon);
             string strCom = "SELECT * FROM [Sheet1$]";
             Conn.Open();
             System.Data.OleDb.OleDbDataAdapter myCommand = new System.Data.OleDb.OleDbDataAdapter(strCom, Conn);
             DataSet ds = new DataSet();
             myCommand.Fill(ds, "[Sheet1$]");
             Conn.Close();
             return ds;
         }

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  • 原文地址:https://www.cnblogs.com/gaojun/p/1445609.html
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