获取带注释的字段

//来自 nowjava

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 * by the @authors tag. See the copyright.txt in the distribution for a

 * full listing of individual contributors.

 *

 * Licensed under the Apache License, Version 2.0 (the "License");

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 * 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,

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 */

//package com.nowjava;

import java.lang.annotation.Annotation;


import java.lang.reflect.Field;


import java.security.AccessController;

import java.security.PrivilegedAction;


import java.util.ArrayList;

import java.util.List;


public class Main {

    public static List<Field> getFieldsWithAnnotation(

            final Class<?> source,

            final Class<? extends Annotation> annotationClass) {

        List<Field> declaredAccessableFields = AccessController

                .doPrivileged(new PrivilegedAction<List<Field>>() {

                    public List<Field> run() {

                        List<Field> foundFields = new ArrayList<Field>();

                        Class<?> nextSource = source;/*from 时代Java - N o w  J a v a . c o m*/

                        while (nextSource != Object.class) {

                            for (Field field : nextSource

                                    .getDeclaredFields()) {

                                if (field

                                        .isAnnotationPresent(annotationClass)) {

                                    if (!field.isAccessible()) {