将对象序列化和反序列化

 1 /**
 2  * Copyright &copy; 2012-2014 <a href="https://github.com/thinkgem/jeesite">JeeSite</a> All rights reserved.
 3  */
 4 package com.thinkgem.jeesite.common.utils;
 5 
 6 import java.io.ByteArrayInputStream;
 7 import java.io.ByteArrayOutputStream;
 8 import java.io.ObjectInputStream;
 9 import java.io.ObjectOutputStream;
10 import java.lang.reflect.Method;
11 
12 import org.apache.commons.lang3.StringUtils;
13 
14 /**
15  * 对象操作工具类, 继承org.apache.commons.lang3.ObjectUtils类
16  * @author ThinkGem
17  * @version 2014-6-29
18  */
19 public class ObjectUtils extends org.apache.commons.lang3.ObjectUtils {
20 
21     /**
22      * 注解到对象复制，只复制能匹配上的方法。
23      * @param annotation
24      * @param object
25      */
26     public static void annotationToObject(Object annotation, Object object){
27         if (annotation != null){
28             Class<?> annotationClass = annotation.getClass();
29             Class<?> objectClass = object.getClass();
30             for (Method m : objectClass.getMethods()){
31                 if (StringUtils.startsWith(m.getName(), "set")){
32                     try {
33                         String s = StringUtils.uncapitalize(StringUtils.substring(m.getName(), 3));
34                         Object obj = annotationClass.getMethod(s).invoke(annotation);
35                         if (obj != null && !"".equals(obj.toString())){
36                             if (object == null){
37                                 object = objectClass.newInstance();
38                             }
39                             m.invoke(object, obj);
40                         }
41                     } catch (Exception e) {
42                         // 忽略所有设置失败方法
43                     }
44                 }
45             }
46         }
47     }
48     
49     /**
50      * 序列化对象
51      * @param object
52      * @return
53      */
54     public static byte[] serialize(Object object) {
55         ObjectOutputStream oos = null;
56         ByteArrayOutputStream baos = null;
57         try {
58             if (object != null){
59                 baos = new ByteArrayOutputStream();
60                 oos = new ObjectOutputStream(baos);
61                 oos.writeObject(object);
62                 return baos.toByteArray();
63             }
64         } catch (Exception e) {
65             e.printStackTrace();
66         }
67         return null;
68     }
69 
70     /**
71      * 反序列化对象
72      * @param bytes
73      * @return
74      */
75     public static Object unserialize(byte[] bytes) {
76         ByteArrayInputStream bais = null;
77         try {
78             if (bytes != null && bytes.length > 0){
79                 bais = new ByteArrayInputStream(bytes);
80                 ObjectInputStream ois = new ObjectInputStream(bais);
81                 return ois.readObject();
82             }
83         } catch (Exception e) {
84             e.printStackTrace();
85         }
86         return null;
87     }
88 }