objecttoxml.java

此文档包含有AOP

package test.xml;

import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

public class ObjectToXml {

	public static void main(String[] args) {
		Class kk = MyObject.class;
		MyObject  my = new MyObject();
		MyObject  my1 = new MyObject();
		MyObject1 sub = new MyObject1();
		sub.setISBN("0-2112-120");
		my.setAge("10");
		my.setName("Tom");
		my.setSub(sub);
		my.setSecond(sub);
		my1.setAge("10");
		my1.setName("Tom");
		my1.setSub(sub);
		my1.setSecond(sub);
		MyObject[] test ={my,my1};
		
		Field[] fields = kk.getFields();
		for (int i = 0; i < fields.length; i++) {
			System.out.println(fields[i].getName());
		}
		Method[] methods = kk.getMethods();
		for (int i = 0; i < methods.length; i++) {	
			if(methods[i].getName().startsWith("get")){				
				System.out.println(methods[i].getName());
				try {
					System.out.println(methods[i].invoke(my));
				} catch (IllegalArgumentException e) {
					e.printStackTrace();
				} catch (IllegalAccessException e) {
					e.printStackTrace();
				} catch (InvocationTargetException e) {
					e.printStackTrace();
				}
			}
		}
		System.out.println("-------------- XML Begin ----------------");
		System.out.println("<?xml version=\"1.0\" ?>");
		System.out.println("<"+kk.getSimpleName()+">");
		for (int i = 0; i < methods.length; i++) {	
			if(methods[i].getName().startsWith("get")){	
				String temp = methods[i].getName();
				temp = temp.substring(3, temp.length());
				temp = temp.substring(0, 1).toLowerCase()+temp.substring(1, temp.length());
				System.out.print("\t<"+temp+">");
//				System.out.println(methods[i].getName());
				try {
					Object obj = methods[i].invoke(my);
					if(obj instanceof String){
						System.out.print(obj);
					}
				} catch (IllegalArgumentException e) {
					e.printStackTrace();
				} catch (IllegalAccessException e) {
					e.printStackTrace();
				} catch (InvocationTargetException e) {
					e.printStackTrace();
				}
				System.out.println("</"+temp+">");
			}
		}
		System.out.println("</"+kk.getSimpleName()+">");
		
		System.out.println("----------- Static Method ----------");
		printObjectToXml(my,"\t");
		System.out.println("----------- Static Method 2 ----------");
		printObjectToXml(test,"\t");
	}
	
	public static void printObjectToXml(Object o,String prefix){
		if(o instanceof Object[]){
			Object[] objs = (Object[])o;
			for (int i = 0; i < objs.length; i++) {
				printObjectToXml(objs[i],prefix);
			}
			return ;
		}
		Class kk = o.getClass();
		Method[] methods = kk.getMethods();
		if(prefix==null||"".equals(prefix)){
			System.out.println("<?xml version=\"1.0\" ?>");
		}
		System.out.println(prefix+"<"+kk.getSimpleName()+">");
		for (int i = 0; i < methods.length; i++) {	
			if(methods[i].getName().startsWith("get")){	
				String temp = methods[i].getName();
				temp = temp.substring(3, temp.length());
				temp = temp.substring(0, 1).toLowerCase()+temp.substring(1, temp.length());
				System.out.print(prefix+"\t<"+temp+">");
//				System.out.println(methods[i].getName());
				try {
					Object obj = methods[i].invoke(o);
					if(obj instanceof String){
						System.out.print(obj);
					}else if(obj instanceof Class){
						System.out.print(obj.toString().substring(6, obj.toString().length()));
					}else if(!(obj instanceof Class)){
						System.out.println("");
						printObjectToXml(obj,prefix+"\t\t");
						System.out.print(prefix+"\t");
					}
				} catch (IllegalArgumentException e) {
					e.printStackTrace();
				} catch (IllegalAccessException e) {
					e.printStackTrace();
				} catch (InvocationTargetException e) {
					e.printStackTrace();
				}
				
				System.out.println("</"+temp+">");
			}
		}
		System.out.println(prefix+"</"+kk.getSimpleName()+">");
	}
}