c# 连接 mysql 学习心得
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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