/*

* System Abbrev ：

* system Name? :

* Component No? ：

* Component Name：

* File name???? ：ReflectTestMain.java

* Author??????? ：Qiuzhenping

* Date????????? ：2014-10-25

* Description?? :? <description>

*/

?

/* Updation record 1：

?* Updation date??????? :? 2014-10-25

?* Updator????????? :? Qiuzhenping

?* Trace No:? <Trace No>

?* Updation No:? <Updation No>

?* Updation Content:? <List all contents of updation and all methods updated.>

?*/

package com.qiuzhping.reflect.main;

?

import java.lang.reflect.Constructor;

import java.lang.reflect.Field;

import java.lang.reflect.Method;

?

/**

?* <Description functions in a word>

?* 反射就是把Java類中的各種成分映射成對應的Java類。

?* <Detail description>

?*

?* @author? Qiuzhenping

?* @version? [Version NO, 2014-10-25]

?* @see? [Related classes/methods]

?* @since? [product/module version]

?*/

public class ReflectTestMain {

?

???????? /** <default constructor>

???????? ?*/

???????? public ReflectTestMain() {

?????????????????? // TODO Auto-generated constructor stub

???????? }

?

???????? /** <Description functions in a word>

???????? ?* 2014-10-25

???????? ?* <Detail description>

???????? ?* @author? Qiuzhenping

???????? ?* @param args [Parameters description]

???????? ?* @return void [Return type description]

???????? ?* @exception throws [Exception] [Exception description]

???????? ?* @see [Related classes#Related methods#Related properties]

???????? ?*/

???????? public static void main(String[] args) throws Exception{

?????????????????? // TODO Auto-generated method stub

?????????????????? //Constructor[] contructor = Person.class.getConstructors();

?????????????????? //Method[] method = Person.class.getMethods();

?????????????????? Person p = new Person(24, "Qiuzhping", "100001", "Qiuzhping");

//?????????????? Field [] field = p.getClass().getDeclaredFields();

//?????????????? for(Field f:field){

//???????????????????????? f.setAccessible(true);

//???????????????????????? System.out.println(f.getName());

//???????????????????????? Object obj = f.get(p);

//???????????????????????? System.out.println(obj);

//?????????????? }

?????????????????? changeStringValue(p);

?????????????????? System.out.println(p.toString());

???????? }

?

???????? /** <Description functions in a word>

???????? ?*? 將obj對象中的String類型的字段相應的Value中含有i的字符替換為abc<BR>

???????? ?*? 2014-10-26

???????? ?* <Detail description>

???????? ?* @author? Qiuzhenping

???????? ?* @param obj [Parameters description]

???????? ?* @return void [Return type description]

???????? ?* @exception throws [Exception] [Exception description]

???????? ?* @see [Related classes#Related methods#Related properties]

???????? ?*/

???????? private static void changeStringValue(Object obj) throws Exception {

?????????????????? Field[] fields = obj.getClass().getDeclaredFields();

?????????????????? for(Field f : fields){

??????????????????????????? f.setAccessible(true);//暴力反射

??????????????????????????? if(f.getType() == String.class){//字節碼比較是用 ==

???????????????????????????????????? String oldValue = (String) f.get(obj);

???????????????????????????????????? String newValue = oldValue.replaceAll("i", "abc");//將全部的i替換為abc

???????????????????????????????????? f.set(obj, newValue);

??????????????????????????? }

?????????????????? }

??????????????????

???????? }

????????

???????? ?static class Person {

?

?????????????????? public Person(int age, String name, String id, String pwd) {

??????????????????????????? super();

??????????????????????????? this.age = age;

??????????????????????????? this.name = name;

??????????????????????????? this.id = id;

??????????????????????????? this.pwd = pwd;

?????????????????? }

?????????????????? @Override

?????????????????? public String toString() {

??????????????????????????? return "age = "+age +"\tname = "+name+"\tid = "+id+"\tpwd = "+pwd;

?????????????????? }

?????????????????? private int age;

?????????????????? private String name;

?????????????????? private String id;

?????????????????? private String pwd;

?????????????????? public int getAge() {

??????????????????????????? return age;

?????????????????? }

?????????????????? public void setAge(int age) {

??????????????????????????? this.age = age;

?????????????????? }

?????????????????? public String getName() {

??????????????????????????? return name;

?????????????????? }

?????????????????? public void setName(String name) {

??????????????????????????? this.name = name;

?????????????????? }

?????????????????? public String getId() {

??????????????????????????? return id;

?????????????????? }

?????????????????? public void setId(String id) {

??????????????????????????? this.id = id;

?????????????????? }

?????????????????? public String getPwd() {

??????????????????????????? return pwd;

?????????????????? }

?????????????????? public void setPwd(String pwd) {

??????????????????????????? this.pwd = pwd;

?????????????????? }

?????????????????? /** <default constructor>

?????????????????? ?*/

?????????????????? public Person() {

??????????????????????????? // TODO Auto-generated constructor stub

?????????????????? }

?

???????? }

}