JavaBean Introspector 使用示例-优快云博客

introspector与反射类似，主要是对java bean属性、方法等的一种处理方法.

1. class diagram

<img src="http://dl.iteye.com/upload/attachment/482916/592d562b-9054-3026-8b27-7cdb400a8207.jpg" alt="">

2. 实例

package com.siyuan.jdktest;
import java.beans.beandescriptor; import java.beans.beaninfo; import java.beans.introspectionexception; import java.beans.introspector; import java.beans.methoddescriptor; import java.beans.propertydescriptor; import java.lang.reflect.method;
class person { private string name; private int age;
/** * @return the age */ public int getage() { return age; }
/** * @param age the age to set */ public void setage(int age) { this.age = age; }
/** * @return the name */ public string getname() { return name; }
/** * @param name the name to set */ public void setname(string name) { this.name = name; } }
public class introspectortest {
/** * @param args * @throws introspectionexception */ public static void main(string[] args) throws introspectionexception { // todo auto-generated method stub beaninfo beaninfo = introspector.getbeaninfo(person.class); system.out.println("beandescriptor==========================================="); beandescriptor beandesc = beaninfo.getbeandescriptor(); class cls = beandesc.getbeanclass(); system.out.println(cls.getname()); system.out.println("methoddescriptor==========================================="); methoddescriptor[] methoddescs = beaninfo.getmethoddescriptors(); for (int i = 0; i < methoddescs.length; i++) { method method = methoddescs[i].getmethod(); system.out.println(method.getname()); } system.out.println("propertydescriptor==========================================="); propertydescriptor[] propdescs = beaninfo.getpropertydescriptors(); for (int i = 0; i < propdescs.length; i++) { method methodr = propdescs[i].getreadmethod(); if (methodr != null) { system.out.println(methodr.getname()); } method methodw = propdescs[i].getwritemethod(); if (methodw != null) { system.out.println(methodw.getname()); } } }
}
3. 运行结果

beandescriptor=========================================== com.siyuan.jdktest.person methoddescriptor=========================================== hashcode setage equals wait wait notify getclass tostring getage notifyall setname wait getname propertydescriptor=========================================== getage setage getclass getname setname