学习笔记，如有错误，还望不吝赐教！
参考网页：http://www.cnblogs.com/magicianCoder/p/5506589.html

data

执行结果

文件

第一步：下载mysql-conerctor-java-xxx-bin.jar,并且引入到Referenced Libraries中。
第二步：写连接方式代码：

package jdbc;

import java.sql.Connection;

public class Values
{
    public static String DRIVER_MYSQL = "com.mysql.jdbc.Driver";
    public static String URL = "jdbc:mysql://localhost:3306/Student?"
            + "user=root&password=0301&useUnicode=true&characterEncoding=UTF8";
}

然后加载，连接，查询数据库，获得数据：

package jdbc;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;

public class TestJDBC
{
    private Statement statement;
    
    public TestJDBC() {
        try
        {
            Class.forName(Values.DRIVER_MYSQL);     //加载JDBC驱动
            System.out.println("Driver Load Success.");
            
            Connection connection = DriverManager.getConnection(Values.URL);    //创建数据库连接对象
            statement = connection.createStatement();       //创建Statement对象
        } catch (Exception e)
        {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
    
    /*
     * 根据sql查询数据库，返回一个结果集
     * 输    入:SQL语句
     * 返回值:ResultSet 查询结果
     */
    public ResultSet query(String sql) {
        ResultSet result = null;
        
        try
        {
            result = statement.executeQuery(sql);
        } catch (SQLException e)
        {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        
        return result;
    }
    
    /*
     * 打印UserInfo表的数据
     * 输    入:结果集(数据表)
     * 返回值:空
     */
    public void printUserInfo(ResultSet result) {
        try
        {
            while(result.next()) {
                System.out.println("userNname:" + result.getString(1) 
                        + ", password:" + result.getString(2));
            }
        } catch (SQLException e)
        {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
    
    /*
     * 执行数据操作
     * 输    入:SQL语句
     * 返回值:空
     */
    public void executeSql(String sql) {
        try
        {
            statement.execute(sql);
        } catch (SQLException e)
        {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
    }
    
    public static void main(String[] args)
    {
        // TODO Auto-generated method stub
        
        String sql = "SELECT * FROM info";
        TestJDBC db = new TestJDBC();
        ResultSet result = db.query(sql);
        db.printUserInfo(result);
    }

}