C#+MYSQL数据库操作（附源码）

看到了一篇很好的日志http://blog.sina.com.cn/s/blog_43eb83b90100mb08.html

在这个日志的启发下，我做出了自己的一个简单的系统，数据库录入，数据库查询~我的代码附在这里C#+MYSQL

另外，把我写的一些SQL代码也贴出来吧：

 

drop table test1.testtable1;
create table test1.testtable1(a char(10) not null,b char(18) not null,primary key (a),unique(a),key(b));

delete from test1.testtable1;
insert into test1.testtable1(a,b) values ("00000001","11111111111111111X");
insert into test1.testtable1(a,b) values ("00000002","00000000000000000X");
insert into test1.testtable1(a,b) values ("00000003","22222222222222222X");

select b from test1.testtable1 where a="00000001";#找到了对应a的那个b.
select * from test1.testtable1;#这句话可以显示所有

show  columns from  test1.testtable1;#这个会显示列
show tables from test1;
show index from test1.testtable1;#显示table里面的index
show table status from test1;#就会返回这个表的状态
show variables like 'b%';#查找像的变量
show status;

其实慢慢看mysql的中文参考是蛮有好处的，特别是第七章和第八章。也一起上传到这里。

下面是那篇我看过参考过的日志的内容：

using System;
using System.Configuration;
using MySql.Data.MySqlClient;
/// <summary>
/// TestDatebase 的摘要说明
/// </summary>
public class TestDatebase
{
    public TestDatebase()
    {
        //
        // TODO: 在此处添加构造函数逻辑
        //
    }
    public static void Main(String[] args)
    {
        MySqlConnection mysql = getMySqlCon();
        //查询sql
        String sqlSearch = "select * from student";
        //插入sql
        String sqlInsert = "insert into student values (12,'张三',25,'大专')";
        //修改sql
        String sqlUpdate = "update student set name='李四' where id= 3";
        //删除sql
        String sqlDel = "delete from student where id = 12";
        //打印SQL语句
        Console.WriteLine(sqlDel);
        //四种语句对象
        //MySqlCommand mySqlCommand = getSqlCommand(sqlSearch, mysql);
        //MySqlCommand mySqlCommand = getSqlCommand(sqlInsert, mysql);
        //MySqlCommand mySqlCommand = getSqlCommand(sqlUpdate, mysql);
        MySqlCommand mySqlCommand = getSqlCommand(sqlDel, mysql);
        mysql.Open();
        //getResultset(mySqlCommand);
        //getInsert(mySqlCommand);
        //getUpdate(mySqlCommand);
        getDel(mySqlCommand);
        //记得关闭
        mysql.Close();
       String readLine = Console.ReadLine();
    }
    /// <summary>
    /// 建立mysql数据库链接
    /// </summary>
    /// <returns></returns>
    public static MySqlConnection getMySqlCon()
    {
        String mysqlStr = "Database=test;Data Source=127.0.0.1;User Id=root;Password=root;pooling=false;CharSet=utf8;port=3306";
        // String mySqlCon = ConfigurationManager.ConnectionStrings["MySqlCon"].ConnectionString;
        MySqlConnection mysql = new MySqlConnection(mysqlStr);
        return mysql;
    }
    /// <summary>
    /// 建立执行命令语句对象
    /// </summary>
    /// <param name="sql"></param>
    /// <param name="mysql"></param>
    /// <returns></returns>
    public static MySqlCommand getSqlCommand(String sql,MySqlConnection mysql)
    {
        MySqlCommand mySqlCommand = new MySqlCommand(sql, mysql);
        //  MySqlCommand mySqlCommand = new MySqlCommand(sql);
        // mySqlCommand.Connection = mysql;
        return mySqlCommand;
    }
    /// <summary>
    /// 查询并获得结果集并遍历
    /// </summary>
    /// <param name="mySqlCommand"></param>
    public static void getResultset(MySqlCommand mySqlCommand)
    {
        MySqlDataReader reader = mySqlCommand.ExecuteReader();
        try
        {
            while (reader.Read())
            {
                if (reader.HasRows)
                {
                    Console.WriteLine("编号:" + reader.GetInt32(0) + "|姓名:" + reader.GetString(1) + "|年龄:" + reader.GetInt32(2) + "|学历:" + reader.GetString(3));
                }
            }
        }
        catch (Exception)
        {
            Console.WriteLine("查询失败了！");
        }
        finally
        {
            reader.Close();
        }
    }
    /// <summary>
    /// 添加数据
    /// </summary>
    /// <param name="mySqlCommand"></param>
    public static void getInsert(MySqlCommand mySqlCommand)
    {
        try
        {
            mySqlCommand.ExecuteNonQuery();
        }
        catch (Exception ex)
        {
            String message = ex.Message;
            Console.WriteLine("插入数据失败了！" + message);
        }
     
    }
    /// <summary>
    /// 修改数据
    /// </summary>
    /// <param name="mySqlCommand"></param>
    public static void getUpdate(MySqlCommand mySqlCommand)
    {
        try
        {
            mySqlCommand.ExecuteNonQuery();
        }
        catch (Exception ex)
        {
            String message = ex.Message;
            Console.WriteLine("修改数据失败了！" + message);
        }
    }
    /// <summary>
    /// 删除数据
    /// </summary>
    /// <param name="mySqlCommand"></param>
    public static void getDel(MySqlCommand mySqlCommand)
    {
        try
        {
            mySqlCommand.ExecuteNonQuery();
        }
        catch (Exception ex)
        {
            String message = ex.Message;
            Console.WriteLine("删除数据失败了！" + message);
        }
    }
}