JDK工具类_____反射的基本应用

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package test;import java.io.Serializable;/** * @author Administrator * */public class User implements Serializable{/** * SERID */private static final long serialVersionUID = 1L;/** * genral po */private String username;private String password;/** * encapsulation */public String getUsername() {return username;}public void setUsername(String username) {this.username = username;}public String getPassword() {return password;}public void setPassword(String password) {this.password = password;}/** * over tostring */@Overridepublic String toString() {return "User [username=" + username + ", password=" + password + "]";}}package test;/** * @author Administrator * Java反射 */public class Reflect {public static void main(String[] args) {User u=new User();System.out.println("全类名字:"+u.getClass().getName());try {//标准的类装载 和jdbc驱动一样Class<?>clazz=Class.forName("test.User");System.out.println("装载获取class的全名称:"+clazz.getName());System.out.println("装载获取class构造器:"+clazz.getConstructors());System.out.println("装载获取class所有字段:"+clazz.getFields());System.out.println("装载获取class所有方法:"+clazz.getMethods());} catch (ClassNotFoundException e) {e.printStackTrace();}}}

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