Jdbc-MySQL数据库连接

//Jdbc-MySQL数据库连接
import java.sql.*;

public class MySQLDBConnection{
private Connection con;
private Statement st;
private ResultSet rs;

public MySQLDBConnection(){
try{
//加载驱动
Class.forName("org.gjt.mm.mysql.Driver");
//建立连接
con=DriverManager.getConnection("jdbc:mysql://localhost/login","yan","123");
}catch(Exception e){
e.printStackTrace();
}
}

public static void main(String args[]){
new MySQLDBConnection().selectLogin();
}

public void selectLogin(){
try{
st=con.createStatement(ResultSet.TYPE_SCROLL_INSENSITIVE,ResultSet.CONCUR_READ_ONLY);
rs=st.executeQuery("select l_user,l_pass from login");
while(rs.next()){
String l_user=rs.getString("l_user");
String l_pass=rs.getString("l_pass");
System.out.println("l_user:"+l_user+"/t"+"l_pass:"+l_pass);
}
}catch(Exception e){
e.printStackTrace();
}
}
}

//注：需要mysql-java驱动 mysql-connector-java-3.1.7-bin.jar