java反射大讲堂 实例源码下载

package tom.change.Reflect.Test; import java.lang.reflect.Constructor; import java.lang.reflect.Field; import java.lang.reflect.InvocationTargetException; import java.lang.reflect.Method; import tom.change.Reflect.Test.pojo.Tea_Eng; public class Test { public static void main(String[] args) throws ClassNotFoundException, InstantiationException, IllegalAccessException, NoSuchMethodException, SecurityException, IllegalArgumentException, InvocationTargetException, NoSuchFieldException{ //获取指定类 Class<?> clazz=Class.forName("tom.change.Reflect.Test.pojo.Tea_Eng"); //获取所有的构造函数 Constructor<?> constructors[] = clazz.getConstructors(); System.out.println("Tea_Eng下的所有的构造函数："); for (int i = 0; i < constructors.length; i++) { System.out.println(constructors[i]); } //通过其中一种构造函数来实例化该对象 Constructor<?> constructor = clazz.getConstructor(String.class); Tea_Eng tea = (Tea_Eng)constructor.newInstance("I Can Read Chinese Too"); //获取父类 Class<?> superclass = clazz.getSuperclass(); System.out.println("Tea_Eng的父类是 ："+superclass.getName()); //获取所有接口 Class<?> interfaces[]=clazz.getInterfaces(); System.out.println("Tea_Eng的所有接口："); for (int i = 0; i < interfaces.length; i++) { System.out.println(interfaces[i].getName()); } //获取所有的属性字段 Field fields[] = clazz.getDeclaredFields(); System.out.println("Tea_Eng下的所有属性"); for (int i = 0; i < fields.length; i++) { System.out.println(fields[i].getName()); } //设置 ability字段 Field field = clazz.getDeclaredField("ability"); field.setAccessible(true); field.set(tea, "I Can Read Frech Too"); tea.haveAbility(); //获取所有方法 Method[] methods = clazz.getMethods(); System.out.println("Tea_Eng下的方法："); for (int i = 0; i < methods.length; i++) { System.out.println(methods[i]); } //执行writeAuthor方法 Method method = clazz.getMethod("writeAuthor", String.class); method.invoke(tea, "I Can say English ! !"); } }