转：Excel导入SQL数据库完整代码

 Excel导入SQL数据库完整代码 
  2 protected void studentload_Click(object sender, EventArgs e)
  3      {//批量添加学生信息
  4          SqlConnection conn = DB.dataBaseConn();//链接数据库
  5          conn.Open();
  6           try
  7           {
  8              string fileurl = typename(studentFileUpload);//调用typename方法取得excel文件路径
  9              DataSet ds = new DataSet();//取得数据集
 10              ds = xsldata(fileurl);
 11              int errorcount = 0;//记录错误信息条数
 12              int insertcount = 0;//记录插入成功条数
 13              int updatecount = 0;//记录更新信息条数
 14               for (int i = 0; i < ds.Tables[0].Rows.Count; i++)
 15              {
 16                  string stuid = ds.Tables[0].Rows[i][0].ToString();
 17                  string stuname = ds.Tables[0].Rows[i][1].ToString();
 18                  string stusex = ds.Tables[0].Rows[i][2].ToString();
 19                  string zhuanye = ds.Tables[0].Rows[i][3].ToString();
 20                  string classname = ds.Tables[0].Rows[i][4].ToString();
 21                  if (stuid != "" && stuname != "" && stusex != "" && zhuanye != "" && classname != "")
 22                  {
 23                                    SqlCommand selectcmd = new SqlCommand("select count(*) from zy_class   where zhuanye='" + zhuanye + "'and classname='" + classname + "'", conn);
 24                      int count = Convert.ToInt32(selectcmd.ExecuteScalar());
 25                      if (count > 0)
 26                      {
 27                          SqlCommand selectcmd2 = new SqlCommand("select count(*) from stud where   stuid='" + stuid + "'", conn);
 28                          int count2 = Convert.ToInt32(selectcmd2.ExecuteScalar());
 29                          if (count2 > 0)
 30                          {
 31                              SqlCommand updatecmd = new SqlCommand("update stud set   stuname='" + stuname + "',stusex='" + stusex + "',zhuanye='" + zhuanyei + "',classname='" + classname + "'   where stuid='" + stuid + "'", conn);
 32                              updatecmd.ExecuteNonQuery();
 33                              updatecount++;
 34                          }
 35                          else
 36                          {
 37                              SqlCommand insertcmd= new SqlCommand("insert into stud    values('" + stuid + "','" + stuname + "','" + stusex + "','" + zhuanye + "','" + classname+ "')", conn);
 38                              insertcmd.ExecuteNonQuery();
 39                              insertcount++;
 40                          }
 41                      }
 42                      else
 43                      {
 44                          Response.Write("<script language='javascript'>alert('专业或班级信息有错！导入失败！请检查！');</script>");
 45                          break;  
 46 
 47                       }
 48                  }
 49                  else
 50                  {
 51                      errorcount++;
 52                  }
 53              }
 54              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>");
 55          }
 56          catch (Exception e)
 57          {
 58              Response.Write("<script language='javascript'>alert('导入失败！');</script>");
 59          }
 60          finally
 61          {
 62              conn.Close();
 63          }    
 64      }
 65 
 66 //把EXCEL文件上传到服务器并返回文件路径
 67 
 68 private String typename(FileUpload fileloads)
 69      {
 70          string fullfilename = fileloads.PostedFile.FileName;
 71          string filename = fullfilename.Substring(fullfilename.LastIndexOf("\") + 1);
 72          string type = fullfilename.Substring(fullfilename.LastIndexOf(".") + 1);
 73          string murl = "";
 74          if (type == "xls")
 75          {
 76              fileloads.PostedFile.SaveAs(Server.MapPath("excel") + "\" + filename);
 77              murl = (Server.MapPath("excel") + "\" + filename).ToString();
 78          }
 79          else
 80          {
 81              Response.Write("<script language='javascript'>alert('导入文件格式不对!');</script>");
 82 
 83          }
 84          return murl;
 85      }
 86 
 87    //
 88 
 89 把excel数据读入dataset返回l数据集
 90 
 91 private DataSet xsldata(string filepath)
 92      {
 93          string strCon = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=" + filepath + ";Extended Properties='Excel 8.0;IMEX=1'";
 94          System.Data.OleDb.OleDbConnection Conn = new System.Data.OleDb.OleDbConnection(strCon);
 95          string strCom = "SELECT * FROM [Sheet1$]";
 96          Conn.Open();
 97          System.Data.OleDb.OleDbDataAdapter myCommand = new System.Data.OleDb.OleDbDataAdapter(strCom, Conn);
 98          DataSet ds = new DataSet();
 99          myCommand.Fill(ds, "[Sheet1$]");
100          Conn.Close();
101          return ds;
102      } 
103 
104 
105 
106 本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/HelloXiaoyu/archive/2009/01/15/3790134.aspx