C#操作数据库-----HelloWorld

这里采用在visual studio 2010中通过MySql.Data.dll、MySql.Web.dll来连接mysql数据库，

之后便进行数据的插入和查询。

Program.cs文件内容如下：

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using MySql.Data.MySqlClient;
using System.Data;

namespace DatabaseProgram
{
    class Program
    {
        static string mysqlConnectionString = "Server=localhost;Database=csharp;Uid=root;Pwd=admin";
        static void Main(string[] args)
        {
            InsertData();
            SelectData();
        }

        //向数据库插入数据
        public static void InsertData() 
        {
            MySqlConnection conn = new MySqlConnection(mysqlConnectionString);
            MySqlCommand command;
            conn.Open();
            try
            {
                command = conn.CreateCommand();
                command.CommandText = "INSERT INTO phoneBook(id,name,mobile) VALUES(@id,@name,@mobile)";
                command.Parameters.AddWithValue("@id", 2);
                command.Parameters.AddWithValue("@name", "yangjianzhou");
                command.Parameters.AddWithValue("@mobile", "1234567890");
                command.ExecuteNonQuery();
            }
            catch (Exception)
            {
            }
            finally
            {
                if (conn.State == ConnectionState.Open)
                {
                    conn.Close();
                }
            }
        }

        //从数据库中读取数据
        public static void SelectData() 
        {
            MySqlConnection conn = new MySqlConnection(mysqlConnectionString);
            conn.Open();
            MySqlDataReader dataReader = null;
            MySqlCommand command = null;
            try
            {
                command = conn.CreateCommand();
                command.CommandText = "SELECT * FROM phoneBook";
                dataReader =command.ExecuteReader();
                    Console.WriteLine();
                    while (dataReader.Read())
                    {
                        Console.WriteLine("id={0},  name={1},  mobile={2}", dataReader.GetInt16(0), dataReader.GetString(1), dataReader.GetString(2));
                        Console.WriteLine();
                    }
            }
            catch (Exception)
            {
            }
            finally 
            {
                if (!dataReader.IsClosed)
                {
                    dataReader.Close();
                }
                if (conn.State == ConnectionState.Open) 
                {
                    conn.Close();
                }
            }
        }
    }
}

运行结果如下：

数据库中内容为：



查询结果为：