Java 反射 之 访问构造方法

http://www.verejava.com/?id=16995156772536

package com.reflect;

import java.lang.reflect.Constructor;
import java.lang.reflect.Modifier;
import java.lang.reflect.TypeVariable;

public class TestConstructor
{
	public static void test()
	{
		try
		{
			Class c=Class.forName("com.entity.Student");
			Constructor[] constructors=c.getConstructors();
			for(Constructor constructor:constructors)
			{
				System.out.println(constructor.getModifiers());
				if(constructor.getModifiers()==Modifier.PUBLIC)
				{
					System.out.println("public");
				}
				System.out.println(constructor.getName());
			}
		} catch (ClassNotFoundException e)
		{
			e.printStackTrace();
		} 
	}
	public static void test2()
	{
		try
		{
			Class c=Class.forName("com.entity.Student");
			Constructor constructor=c.getConstructor(new Class[]{String.class,int.class});
			Object obj=constructor.newInstance(new Object[]{"李军",40});
			
		} catch (Exception e)
		{
			e.printStackTrace();
		} 
	}
	public static void main(String[] args)
	{
		test2();
	}
}





package com.entity;

public class Student
{
	private String name;
	private int age;
	
	public Student()
	{
		super();
		System.out.println("student");
	}
	public Student(String name, int age)
	{
		super();
		this.name = name;
		this.age = age;
		System.out.println(this.name+","+this.age);
	}
	public String getName()
	{
		return name;
	}
	public void setName(String name)
	{
		this.name = name;
	}
	public int getAge()
	{
		return age;
	}
	public void setAge(int age)
	{
		this.age = age;
	}
	
	
}


http://www.verejava.com/?id=16995156772536

posted @ 2018-06-27 08:44  verejava  阅读(101)  评论(0)    收藏  举报