反射动态的获取方法

import java.lang.reflect.Method;

public class ReflectDemo4 {

    public static void main(String[] args) throws Exception {
        
//        getMethodDemo();
        
//        getMethodDemo2();
        
        getMethodDemo3();
        
    }
    //反射方法，非静态，有参数的show方法
    public static void getMethodDemo3() throws Exception{
        
        String className = "cn.qujianlei.domain.Person";
        Class clazz = Class.forName(className);
        
        Method method = clazz.getMethod("paramShow", String.class,int.class);
        
        Object obj = clazz.newInstance();
        
        method.invoke(obj, "xiaoqiang",40);
        
    }
    
    //反射方法，静态，无参数的show方法
    public static void getMethodDemo2() throws Exception{
        
        String className = "cn.qujianlei.domain.Person";
        Class clazz = Class.forName(className);
        
        Method method = clazz.getMethod("staticShow", null);
        
        method.invoke(null, null);
        
        
    }
    
    //反射方法，非静态，无参数的show方法
    public static void getMethodDemo() throws Exception{
        
        String className = "cn.qujianlei.domain.Person";
        Class clazz = Class.forName(className);
        
        Method method = clazz.getMethod("show", null);
        
        Object obj = clazz.newInstance();
        method.invoke(obj, null);
        
    }

}

public class Person {
        
    private String name;
    private int age;
    public Person(String name, int age) {
        super();
        this.name = name;
        this.age = age;
    }
    
    public Person() {
        super();
        System.out.println("person run");
        
    }
    
    public void show(){
        System.out.println("person show run");
    }
    
    public static void staticShow(){
        System.out.println("person static show run");
    }
    
    public void paramShow(String name,int age){
        System.out.println("show:"+name+"---"+age);
    }
    
    
}