寻找领域

/**

 * Copyright 2008-2009 the original author or authors.

 *

 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in

 * compliance with the License. You may obtain a copy of the License at:

 *

 * http://www.apache.org/licenses/LICENSE-2.0

 *

 * Unless required by applicable law or agreed to in writing, software distributed under the License is

 * distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

 * See the License for the specific language governing permissions and limitations under the License. 

 */

//package com.nowjava;/* from N o w  J a v a  .   c o m*/


import java.lang.reflect.Field;


public class Main {



    public static Field findField(Object obj, String beanPath) {

        try {

            if (beanPath.indexOf('.') > -1) {

                String name = beanPath.substring(0, beanPath.indexOf('.'));

                String path = beanPath.substring(beanPath.indexOf('.') + 1);

                Field field = obj.getClass().getDeclaredField(name);

                field.setAccessible(true);

                return findField(field.get(obj), path);

            } else if (obj == null) {

                return null;

            } else {/**来自 nowjava.com - 时代Java**/

                return obj.getClass().getDeclaredField(beanPath);