（The follow option is after you had installed the  mysql and configure the related environment）
Project->properties->Java Build Path->Libraries->Choose Add External，
Choose the mysql-connector-java-5.1.13-bin.jar

package my;
import java.sql.*;
public class MysqlJdbc{
    public static void main(String args[]) {
        String sqlDriver = "com.mysql.jdbc.Driver";
        Connection connect = null;
        Statement stmt = null;
        ResultSet rs = null;
        try {
            Class.forName("com.mysql.jdbc.Driver");     //加载MYSQL JDBC驱动程序    
            System.out.println("Success loading Mysql Driver!");
        }
        catch (Exception e) {
            System.out.print("Error loading Mysql Driver!");
            e.printStackTrace();
        }
        try {
            String url = "jdbc:mysql://localhost:3306/hope?user=root&password=xiu1314";
            Class.forName(sqlDriver).newInstance();
            connect = DriverManager.getConnection(url,"root","password"); 
                         //password is that you set when u install the mysq
            stmt = connect.createStatement();
            rs = stmt.executeQuery("select * from comment");
            while (rs.next()) {
                System.out.println(rs.getString("name"));
            }
        }
        catch (Exception e) {
             System.out.print("get data error!");
             e.printStackTrace();
        }
      }
}