1. import ??java.beans.PropertyDescriptor; ??
2. import ??java.util.Collection; ??
3. ??
4. import ??org.apache.commons.beanutils.PropertyUtils; ??
5. ??
6. ??
7. /**? ?
8. *?CopyUtil ?
9. ?*/ ? ??
10. ? public ??? class ??CopyUtil???{ ??
11. ??? ??
12. ???? /**? ?
13. ????*?Copy?properties?of?orig?to?dest ?
14. ????*?Exception?the?Entity?and?Collection?Type ?
15. ????*??@param??dest ?
16. ????*??@param??orig ?
17. ????*??@return??the?dest?bean ?
18. ?????*/ ? ??
19. ????? public ??? static ??Object?copyProperties(Object?dest,?Object?orig)???{ ??
20. ???????? if ??(dest??==??? null ???||??orig??==??? null ?)???{ ??
21. ???????????? return ??dest; ??
22. ???????}? ??
23. ??????? ??
24. ???????PropertyDescriptor[]?destDesc??=??PropertyUtils.getPropertyDescriptors(dest); ??
25. ???????? try ????{ ??
26. ???????????? for ??(? int ??i??=??? 0 ?;?i??<??destDesc.length;?i?++?)???{ ??
27. ???????????????Class?destType??=??destDesc[i].getPropertyType(); ??
28. ???????????????Class?origType??=??PropertyUtils.getPropertyType(orig,?destDesc[i].getName()); ??
29. ???????????????? if ?(destType??!=??? null ???&&??destType.equals(origType) ??
30. ????????????????????????&&???!?destType.equals(Class.? class ?))???{ ??
31. ???????????????????? if ?(?!?Collection.? class ?.isAssignableFrom(origType))??{???????????????????? ??
32. ???????????????????????? try ??{ ??
33. ???????????????????????????Object?value??=??PropertyUtils.getProperty(orig,?destDesc[i].getName()); ??
34. ???????????????????????????PropertyUtils.setProperty(dest,?destDesc[i].getName(),?value); ??
35. ???????????????????????}? catch ?(Exception?ex)??{???????????????????????????? ??
36. ???????????????????????}? ??
37. ???????????????????}? ??
38. ???????????????}? ??
39. ???????????}? ??
40. ??????????? ??
41. ???????????? return ??dest; ??
42. ???????}? catch ?(Exception?ex)???{ ??
43. ???????????? throw ??? new ??CopyException(ex); ??
44. //?????????????return?dest;? ??
45. ????????}? ??
46. ???}????? ??
47. ??? ??
48. ???? /**? ?
49. ????*?Copy?properties?of?orig?to?dest ?
50. ????*?Exception?the?Entity?and?Collection?Type ?
51. ????*??@param??dest ?
52. ????*??@param??orig ?
53. ????*??@param??ignores?例如:vo.setUserName?copy?po.setUserName,應(yīng)該寫UserName ?
54. ????*??@return??the?dest?bean ?
55. ?????*/ ? ??
56. ????? public ??? static ??Object?copyProperties(Object?dest,?Object?orig,?String[]?ignores)???{ ??
57. ???????? if ??(dest??==??? null ???||??orig??==??? null ?)???{ ??
58. ???????????? return ??dest; ??
59. ???????}? ??
60. ??????? ??
61. ???????PropertyDescriptor[]?destDesc??=??PropertyUtils.getPropertyDescriptors(dest); ??
62. ???????? try ????{ ??
63. ???????????? for ??(? int ??i??=??? 0 ?;?i??<??destDesc.length;?i?++?)???{ ??
64. ???????????????? if ??(contains(ignores,?destDesc[i].getName()))???{ ??
65. ???????????????????? continue ?; ??
66. ???????????????}? ??
67. ??????????????? ??
68. ???????????????Class?destType??=??destDesc[i].getPropertyType(); ??
69. ???????????????Class?origType??=??PropertyUtils.getPropertyType(orig,?destDesc[i].getName()); ??
70. ???????????????? if ?(destType??!=??? null ???&&??destType.equals(origType) ??
71. ????????????????????????&&???!?destType.equals(Class.? class ?))???{ ??
72. ???????????????????? if ?(?!?Collection.? class ?.isAssignableFrom(origType))??{ ??
73. ???????????????????????Object?value??=??PropertyUtils.getProperty(orig,?destDesc[i].getName()); ??
74. ???????????????????????PropertyUtils.setProperty(dest,?destDesc[i].getName(),?value); ??
75. ???????????????????}? ??
76. ???????????????}? ??
77. ???????????}? ??
78. ??????????? ??
79. ???????????? return ??dest; ??
80. ???????}? catch ?(Exception?ex)???{ ??
81. ???????????? throw ??? new ??CopyException(ex); ??
82. ???????}? ??
83. ???}? ??
84. ??? ??
85. ???? static ??? boolean ??contains(String[]?ignores,?String?name)???{ ??
86. ???????? boolean ??ignored??=??? false ?; ??
87. ???????? for ??(? int ??j??=??? 0 ?;?ignores??!=??? null ???&&??j??<??ignores.length;?j?++?)???{ ??
88. ???????????? if ??(ignores[j].equals(name))???{ ??
89. ???????????????ignored??=??? true ?; ??
90. ???????????????? break ?; ??
91. ???????????}? ??
92. ???????}? ??
93. ??????? ??
94. ???????? return ??ignored; ??
95. ???}? ??
96. ???

     
 import  java.beans.PropertyDescriptor;
 import  java.util.Collection;

 import  org.apache.commons.beanutils.PropertyUtils;


 /** 
 * CopyUtil
  */ 
  public   class  CopyUtil   {
    
     /** 
     * Copy properties of orig to dest
     * Exception the Entity and Collection Type
     *  @param  dest
     *  @param  orig
     *  @return  the dest bean
      */ 
      public   static  Object copyProperties(Object dest, Object orig)   {
         if  (dest  ==   null   ||  orig  ==   null )   {
             return  dest;
        } 
        
        PropertyDescriptor[] destDesc  =  PropertyUtils.getPropertyDescriptors(dest);
         try    {
             for  ( int  i  =   0 ; i  <  destDesc.length; i ++ )   {
                Class destType  =  destDesc[i].getPropertyType();
                Class origType  =  PropertyUtils.getPropertyType(orig, destDesc[i].getName());
                 if (destType  !=   null   &&  destType.equals(origType)
                         &&   ! destType.equals(Class. class ))   {
                     if ( ! Collection. class .isAssignableFrom(origType))  {                    
                         try  {
                            Object value  =  PropertyUtils.getProperty(orig, destDesc[i].getName());
                            PropertyUtils.setProperty(dest, destDesc[i].getName(), value);
                        } catch (Exception ex)  {                            
                        } 
                    } 
                } 
            } 
            
             return  dest;
        } catch (Exception ex)   {
             throw   new  CopyException(ex);
 //             return dest; 
         } 
    }     
    
     /** 
     * Copy properties of orig to dest
     * Exception the Entity and Collection Type
     *  @param  dest
     *  @param  orig
     *  @param  ignores 例如:vo.setUserName copy po.setUserName,應(yīng)該寫UserName
     *  @return  the dest bean
      */ 
      public   static  Object copyProperties(Object dest, Object orig, String[] ignores)   {
         if  (dest  ==   null   ||  orig  ==   null )   {
             return  dest;
        } 
        
        PropertyDescriptor[] destDesc  =  PropertyUtils.getPropertyDescriptors(dest);
         try    {
             for  ( int  i  =   0 ; i  <  destDesc.length; i ++ )   {
                 if  (contains(ignores, destDesc[i].getName()))   {
                     continue ;
                } 
                
                Class destType  =  destDesc[i].getPropertyType();
                Class origType  =  PropertyUtils.getPropertyType(orig, destDesc[i].getName());
                 if (destType  !=   null   &&  destType.equals(origType)
                         &&   ! destType.equals(Class. class ))   {
                     if ( ! Collection. class .isAssignableFrom(origType))  {
                        Object value  =  PropertyUtils.getProperty(orig, destDesc[i].getName());
                        PropertyUtils.setProperty(dest, destDesc[i].getName(), value);
                    } 
                } 
            } 
            
             return  dest;
        } catch (Exception ex)   {
             throw   new  CopyException(ex);
        } 
    } 
    
     static   boolean  contains(String[] ignores, String name)   {
         boolean  ignored  =   false ;
         for  ( int  j  =   0 ; ignores  !=   null   &&  j  <  ignores.length; j ++ )   {
             if  (ignores[j].equals(name))   {
                ignored  =   true ;
                 break ;
            } 
        } 
        
         return  ignored;
    } 
} 
  

Java代碼

1. public ? class ?PO2VO? extends ?TestCase?{ ??
2. ??
3. ???? /*?(non-Javadoc) ?
4. ?????*?@see?junit.framework.TestCase#setUp() ?
5. ?????*/ ??
6. ???? protected ? void ?setUp()? throws ?Exception?{ ??
7. ???????? super .setUp(); ??
8. ????} ??
9. ???? ??
10. ???? public ? void ?testPO2VO(){ ??
11. ????????TUserBasicVO?vo?=? new ?TUserBasicVO(); ??
12. ????????TUserBasic?po?=? new ?TUserBasic(); ??
13. ????????po.setPwd( "111" ); ??
14. ????????po.setUserName( "222" ); ??
15. ????????String[]?a={ "Pwd" , "UserName" }; ??
16. ???????? try ?{ ??
17. ????????????CopyUtil.copyProperties(vo,?po,a); ??
18. ????????}? catch ?(Exception?e)?{ ??
19. ???????????? //?TODO?Auto-generated?catch?block ??
20. ????????????e.printStackTrace(); ??
21. ????????} ??
22. ????????System.out.println(vo.getPwd()); ??
23. ????} ??
24. }??

PO 轉(zhuǎn) VO 復(fù)制