java 连mysql接数据库一个简单实例

环境：

OS： centos 602

IDE ; eclipse + jdk 1.6-33

驱动：mysql-connector-java-5.0.8.tar.gz地址：http://dev.mysql.com/downloads/connector/j/5.0.html

代码 ：

package test1;
import java.sql.*;   
public class Mytest {
	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Connection connection = null;   	
		String url = "jdbc:mysql://192.168.10.10:3306/testdb";   
		String username = "test";   
		String password = "passwd";   
		//加载驱动程序以连接数据库  
		try {   
			Class.forName( "com.mysql.jdbc.Driver" );   
			connection = DriverManager.getConnection( url, username, password );   
		}   
		//捕获加载驱动程序异常  
		catch ( ClassNotFoundException cnfex ) {   
			System.err.println(	"装载 JDBC/ODBC 驱动程序失败。" );   
			cnfex.printStackTrace();   
			System.exit( 1 ); // terminate program   
		}   
		//捕获连接数据库异常  
		catch ( SQLException sqlex ) {   
			System.err.println( "无法连接数据库" );   
			sqlex.printStackTrace();   
			System.exit( 1 ); // terminate program   
		}   
		  Statement stat = null;
		  ResultSet rs = null;
		  // 要执行的SQL语句
		  String sql = "select * from obc_ad";
		  try {
		   stat = connection.createStatement();
		   rs = stat.executeQuery(sql);
		   String name = null;
		   while (rs.next()) {
		    // 选择sname这列数据
		    name = rs.getString("ad_name");
			    System.out.println(name);	   
		    // 输出结果

		   }
		   rs.close();
		   connection.close();
		  } catch (SQLException e) {
		   // TODO Auto-generated catch block
		   e.printStackTrace();
		  }
		 }	
	}