JDBC之利用反射技术将查询结果封装为对象

1、User.java中的代码

package cn.itcast.jdbc.domain;

import java.util.Date;

/**
 * 用户对象
 */
public class User {
	private int id;
	private String name;
	private Date birthday;
	private float money;

	public User() {
	}

	public User(String name) {
		this.name = name;
	}

	public User(float money) {
		this.money = money;
	}

	public void showName() {
		System.out.println(this.name);
	}

	public int getId() {
		return id;
	}

	public void setId(Integer id) {
		this.id = id;
	}

	public String getName() {
		return name;
	}

	public void setName(String name) {
		this.name = name;
	}

	public Date getBirthday() {
		return birthday;
	}

	public void setBirthday(java.sql.Date birthday) {
		this.birthday = birthday;
	}

	public float getMoney() {
		return money;
	}

	public void setMoney(Float money) {
		this.money = money;
	}

}

2、测试类ORMTest.java中的代码

package cn.itcast.jdbc;

import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.ResultSetMetaData;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;

import org.junit.Test;

import cn.itcast.jdbc.domain.User;

/**
 * 利用Java反射技术将查询结果封装为对象
 */
public class ORMTest {
	
	/**
	 * 测试封装单个对象
	 * @throws InstantiationException
	 * @throws IllegalAccessException
	 * @throws NoSuchMethodException
	 * @throws SecurityException
	 * @throws IllegalArgumentException
	 * @throws InvocationTargetException
	 * @throws SQLException
	 */
	@Test
	public void testGetObject() throws 
		InstantiationException, IllegalAccessException, 
		NoSuchMethodException, SecurityException, 
		IllegalArgumentException, InvocationTargetException, 
		SQLException {
		User user = (User) getObject(
				"select id as Id, name as Name, birthday as Birthday, "
				+ "money as Money  from user where id=1",
				User.class);
		System.out.println(user);
	}
	
	/**
	 * 测试将对象封装进List集合中
	 * @throws InstantiationException
	 * @throws IllegalAccessException
	 * @throws IllegalArgumentException
	 * @throws InvocationTargetException
	 * @throws SQLException
	 */
	@Test
	public void testGetObjects() throws 
		InstantiationException, IllegalAccessException, 
		IllegalArgumentException, InvocationTargetException, 
		SQLException {
		List