京东自营 618 + 国补 iPhone 历史最低价
Java 获取所有pojo属性名称的完整列表。
获取所有pojo属性名称的完整列表。
实例源码：
源代码：
执行
执行中...
x
1
2
/**3
4
* Helios, OpenSource Monitoring5
6
* Brought to you by the Helios Development Group7
8
*9
10
* Copyright 2007, Helios Development Group and individual contributors11
12
* as indicated by the @author tags. See the copyright.txt file in the13
14
* distribution for a full listing of individual contributors.15
16
*17
18
* This is free software; you can redistribute it and/or modify it19
20
* under the terms of the GNU Lesser General Public License as21
22
* published by the Free Software Foundation; either version 2.1 of23
24
* the License, or (at your option) any later version.25
26
*27
28
* This software is distributed in the hope that it will be useful,29
30
* but WITHOUT ANY WARRANTY; without even the implied warranty of31
32
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU33
34
* Lesser General Public License for more details.35
36
*37
38
* You should have received a copy of the GNU Lesser General Public39
40
* License along with this software; if not, write to the Free41
42
* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA43
44
* 02110-1301 USA, or see the FSF site: http://www.fsf.org. 45
46
*47
48
*/49
50
//package com.nowjava;51
52
import java.beans.*;53
/** 54
来 自 55
n o w j a v a . c o m - 时 代 Java56
**/57
58
59
import java.util.ArrayList;60
61
62
import java.util.List;63
64
65
public class Main {66
67
public static void main(String[] argv) throws Exception {68
69
Object pojo = "nowjava.com";70
71
System.out.println(getPojoBeanAttributes(pojo));72
73
}74
75
76
/**77
78
* Gets a complete list of all a pojo's attribute names.79
80
* <code>@JMXAttribute</code> annotations are ignored.81
82
* @param pojo83
84
* @param exclude attributes defined in Object class.85
86
* @return A list of pojo attribute names.87
88
*//* from 时代Java公众号*/89
90
public static List<String> getPojoBeanAttributes(Object pojo,91
92
boolean declared) {93
94
BeanInfo bi = getBeanInfo(pojo);95
96
List<String> list = new ArrayList<String>();97
98
for (PropertyDescriptor pd : bi.getPropertyDescriptors()) {99
100
list.add(pd.getName());101
102
}103
104
if (pojo.getClass() != Object.class) {105
106
list.removeAll(getPojoBeanAttributes(new Object(), false));107
108
}109
110
return list;111
112
}113
114
115
/**116
117
* Gets a complete list of all a pojo's attribute names.118
119
* <code>@JMXAttribute</code> annotations are ignored.120
121
* Declared defaults to true.122
123
* @param pojo124
125
* @return A list of pojo attribute names.126
127
*/128
129
public static List<String> getPojoBeanAttributes(Object pojo) {130
131
return getPojoBeanAttributes(pojo, true);132
133
}134
135
136
public static BeanInfo getBeanInfo(Object pojo) {137
138
try {139
140
return Introspector.getBeanInfo(pojo.getClass());141
142
} catch (Exception e) {143
144
throw new RuntimeException("Failed to create bean info", e);145
146
}147
148
}149
150
151
/**152
153
* Returns a list of a pojo's <code>PropertyDescriptor</code>s minus the same for <code>java.lang.Object</code>.154
155
* @param pojo156
157
* @return A list of <code>PropertyDescriptor</code>s.158
159
*/160
161
public static List<PropertyDescriptor> getPropertyDescriptors(162
163
Object pojo) {164
165
List<PropertyDescriptor> list = getAllPropertyDescriptors(pojo);166
167
List<PropertyDescriptor> objList = getAllPropertyDescriptors(new Object());168
/**代码未完, 请加载全部代码(NowJava.com).**/执行结果：
本文系作者在时代Java发表，未经许可，不得转载。如有侵权，请联系nowjava@qq.com删除。
编辑于
关注时代Java