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Java 检索指定类的字段列表，并由传入的注释类进行注释。如果递归为true，则从所有类层次结构中检索字段
检索指定类的字段列表，并由传入的注释类进行注释。如果递归为true，则从所有类层次结构中检索字段
实例源码：
源代码：
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/* from NowJava.com*/2
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//package com.nowjava;5
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import java.lang.annotation.Annotation;7
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import java.lang.reflect.Field;9
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import java.util.Collections;11
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import java.util.LinkedList;13
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import java.util.List;15
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public class Main {18
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public static void main(String[] argv) throws Exception {20
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Class clazz = String.class;22
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Class annotationClass = String.class;24
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boolean recursively = true;26
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System.out.println(java.util.Arrays28
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.toString(getAnnotatedDeclaredFields(clazz,30
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annotationClass, recursively)));32
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}34
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/**37
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* Retrieving fields list of specified class and which39
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* are annotated by incoming annotation class41
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* If recursively is true, retrieving fields from all class hierarchy43
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*45
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* @param clazz - where fields are searching47
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* @param annotationClass - specified annotation class49
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* @param recursively param51
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* @return list of annotated fields53
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*///from N o w J a v a . c o m - 时代Java55
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public static Field[] getAnnotatedDeclaredFields(Class clazz,57
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Class<? extends Annotation> annotationClass, boolean recursively) {59
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Field[] allFields = getDeclaredFields(clazz, recursively);61
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List<Field> annotatedFields = new LinkedList<Field>();63
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for (Field field : allFields) {65
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if (field.isAnnotationPresent(annotationClass))67
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annotatedFields.add(field);69
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}71
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return annotatedFields.toArray(new Field[annotatedFields.size()]);74
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}76
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/**79
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* Retrieving fields list of specified class81
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* If recursively is true, retrieving fields from all class hierarchy83
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*85
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* @param clazz where fields are searching87
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* @param recursively param89
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* @return list of fields91
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*/93
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public static Field[] getDeclaredFields(Class clazz, boolean recursively) {95
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List<Field> fields = new LinkedList<Field>();97
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Field[] declaredFields = clazz.getDeclaredFields();99
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Collections.addAll(fields, declaredFields);101
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