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c# 连接 mysql 学习心得

Jun 06, 2016 pm 08:01 PM
asp.net mysql php study Experience connect

asp.net连接MySql 需要一个动态库 MySql.Data.dll 上网下载一个 using MySql.Data.MySqlClient; 跟连接mssql数据库一样 MySqlConnection myconn = new MySqlConnection(); //mysql数据库连接字符串 myconn.ConnectionString = "server=110.110.110.36;databa

 asp.net连接MySql

需要一个动态库  MySql.Data.dll 上网下载一个

using MySql.Data.MySqlClient;  跟连接mssql数据库一样

        MySqlConnection myconn = new MySqlConnection();
        //mysql数据库连接字符串
        myconn.ConnectionString = "server=110.110.110.36;database=mysql;Connect Timeout=30;User Name=root;Password=111111;charset=utf8;";

 

//如果有端口,加一句:port=2222

mysql.ConnectionString = "server=110.110.110.36;port=2222;persist security info=true;database=workcms;Connect Timeout=30;User Name=root;Password=111111;charset=utf8;";

 

        myconn.Open();
        MySqlDataAdapter mysda = new MySqlDataAdapter();
        mysda.SelectCommand = new MySqlCommand();
        mysda.SelectCommand.Connection = myconn;
        mysda.SelectCommand.CommandText = "select * from user";

        mysda.SelectCommand.ExecuteNonQuery();

        DataSet ds = new DataSet();

        mysda.Fill(ds);
        myconn.Close();
        GridView1.DataSource = ds;
        GridView1.DataBind();

 

mysql支持utf8字符集

在文件 my.ini 或my.cnf 中相应位置加入
default-character-set = utf8
########################
[client]
default-character-set = utf8
[mysqld]
default-character-set = utf8
#########################
修改结束以后,保存,然后使用客户端登录
#mysql -u root -p
在客户端中输入
>status;
显示的数据中如果出现:
Server characterset:    utf8
Db     characterset:    utf8
Client characterset:    utf8
Conn.  characterset:    utf8
则表示修改成功。

2.建立库表时指定utf8字符集
在建立库表的时候我们需要指定utf8字符集
建立数据库:

CREATE DATABASE dbname default charset=utf8;
建立数据表
Create table tablename(
id int(10) unsigned NOT NULL AUTO_INCREMENT,
name varchar(15) NOT NULL default '',
PRIMARY KEY  (id)
) TYPE=MyISAM DEFAULT CHARACTER SET utf8;

建立好以后,在客户端中使用:
>show create table tablename;
如果最后一行显示utf8,则表示成功

 

 

 

php解决乱码

 

mysql_query("set names utf8;");

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