反射类方法

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package star.july.reflect;import java.lang.reflect.ParameterizedType;import java.lang.reflect.Type;import org.junit.Test;import star.july.entity.Student;//反射类方法public class ClassReflect {@Testpublic void test1() throws Exception{//方法一：//Class clazz = Student.class;//System.out.println(clazz);//方法二：//Class clazz = new Student().getClass();//System.out.println(clazz);//方法三（推荐使用，耦合性低）Class stuCla = Class.forName("star.july.entity.Student");System.out.println(stuCla);}@Testpublic void test2() throws Exception{Class stuCla = Class.forName("star.july.entity.Student");//获得类的名称String name = stuCla.getName();//System.out.println(name);//输出：star.july.entity.Student//获得类的简称String simpleName = stuCla.getSimpleName();//System.out.println(simpleName);//输出：Student//得到当前类继承的普通父类Class superclass = stuCla.getSuperclass();//System.out.println(superclass);     //输出：class star.july.entity.Person//得到当前类继承的泛型父类Type genericSuperclass = stuCla.getGenericSuperclass();//System.out.println(genericSuperclass);   //输出：star.july.entity.Person<star.july.entity.Cat>ParameterizedType pt = (ParameterizedType)genericSuperclass;//得到参数类型中的具体的泛型Type[] ata = pt.getActualTypeArguments();System.out.println(ata[0]);//输出：star.july.entity.Cat//得到当前类的所有普通接口Class[] interfaces = stuCla.getInterfaces();Class if1 = interfaces[0];//System.out.println(if1);//输出：interface java.io.Serializable//得到当前类的所有泛型接口Type[] types = stuCla.getGenericInterfaces(); //System.out.println(types);}}

Student类：

package star.july.entity;import java.io.Serializable;public class Student extends Person<Cat> implements Serializable{private String name;private int age;public Student() {super();}public Student(String name, int age) {super();this.name = name;this.age = age;}public Student( int age) {super();this.age = 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;}@Overridepublic String toString() {return "Student [name=" + name + ", age=" + age + "]";}}

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