手机号码归属地TXT文档数据写入DB

1，读取TXT写入DB步骤：打开连接——SqlCommand(Conn,Str)——逐行读取TXT文本 构造SqlParameter 的参数——执行ExecuteNonQuery()—— 清除参数

2，乱码问题：Txt文档的编码要和StreamReader的编码一致：

using (StreamReader streamReader = new StreamReader(file, Encoding.Default))//解决乱码问题

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

using System.IO;

using System.Data.SqlClient;

using System.Configuration;



namespace 手机号码归属地查询

{

    public partial class 手机号码 : Form

    {

        public 手机号码()

        {

            InitializeComponent();

        }



        private void BtnSelFolder_Click(object sender, EventArgs e)

        {

            //连接字符串

            string strConn = ConfigurationManager.ConnectionStrings["ConnStr"].ConnectionString;



            //打开文件对话框

            FolderBrowserDialog fbDlg = new FolderBrowserDialog();

            string strFolderPath = "";

            if (fbDlg.ShowDialog() != DialogResult.OK)

            {

                return;

            }

            else

            {

                strFolderPath = fbDlg.SelectedPath;

            }

            if (strFolderPath != "")

            {

                //打开连接

                using (SqlConnection Conn = new SqlConnection(strConn))

                {

                    Conn.Open();

                    //清除已经存在的数据

                    string strClear = "Delete  from T_Numbers ";

                    SqlCommand sqlCmdClear = new SqlCommand(strClear, Conn);

                    sqlCmdClear.ExecuteNonQuery();

                    //得到目录下所有的txt文件路径

                    string[] files = Directory.GetFiles(strFolderPath, "*.txt", SearchOption.AllDirectories);

                    foreach (string file in files)

                    {

                        //读取每一个txt文件名

                        string txtName = Path.GetFileNameWithoutExtension(file);

                        //读取txt内容

                        using (StreamReader streamReader = new StreamReader(file, Encoding.Default))//解决乱码问题

                        {

                            string strIns = "insert into  T_Numbers (StartNum, EndNum, CityName,TelCoName) values(@startNum,@endNum,@cityName,@telCoName)";

                            using (SqlCommand sqlCmd = new SqlCommand(strIns, Conn))

                            {

                                string line = null;

                                string strStartNum = "";

                                string strEndNum = "";

                                string strCityName = "";

                                string strTelCoName = "";

                                while ((line = streamReader.ReadLine()) != null)

                                {

                                    string[] str = line.Split('-');

                                    strStartNum = str[0].ToString();

                                    strEndNum = str[1].ToString();

                                    strCityName = str[2].ToString();

                                    strTelCoName = txtName;



                                    SqlParameter[] sqlPara = new SqlParameter[]{

                                        new SqlParameter("startNum",strStartNum),

                                        new SqlParameter("endNum",strEndNum),

                                        new SqlParameter("telCoName",strTelCoName),

                                        new SqlParameter("cityName",strCityName)

                                    };



                                    sqlCmd.Parameters.AddRange(sqlPara);  //添加参数



                                    sqlCmd.ExecuteNonQuery();  //执行



                                    sqlCmd.Parameters.Clear();  //清除参数

                                }



                            }

                        }



                    }

                    MessageBox.Show("手机号码归属地导入OK");

                }

            }

        }



        private void button1_Click(object sender, EventArgs e)

        {

            string strCon = ConfigurationManager.ConnectionStrings["ConnStr"].ConnectionString;

            string strSel = "SELECT CityName,TelCoName FROM  T_Numbers where StartNum<= @TelNum and @TelNum<=EndNum";

            using (SqlConnection con = new SqlConnection(strCon))

            {

                con.Open();

                using (SqlCommand sqlCmd = new SqlCommand(strSel, con))

                {

                    SqlParameter sqlPara = new SqlParameter("TelNum", textBox1.Text.ToString().Trim());

                    sqlCmd.Parameters.Add(sqlPara);

                    using (SqlDataReader sdr = sqlCmd.ExecuteReader())

                    {

                        if (sdr.Read())

                        {

                            string PhoneCity = sdr.GetString(0);

                            string TelCoName = sdr.GetString(1);

                            MessageBox.Show(PhoneCity + " " + TelCoName);

                        }

                        else

                        {

                            MessageBox.Show("无手机号码信息");

                        }



                    }

                }

            }

        }

    }

}