@InitBinder使用

1. @InitBinder  
2. public void initBinder(WebDataBinder binder) {  
3.   
4.   
5.     SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd");  
6.     dateFormat.setLenient(false);  
7.     binder.registerCustomEditor(Date.class, new CustomDateEditor(dateFormat, true));  
8.   
9.   
10.     binder.registerCustomEditor(SystemInfo.class, new PropertyEditorSupport() {  
11.   
12.         @Override  
13.         public void setAsText(String text) throws IllegalArgumentException {  
14.             if (!StringUtils.hasText(text)) {  
15.                 return;  
16.             }  
17.             {  
18.                 Long systemInfoId = Long.valueOf(text);  
19.                 SystemInfo systemInfo = systemInfoService.findById(systemInfoId);  
20.                 setValue(systemInfo);  
21.             }  
22.         }  
23.     });  
24.   
25.     binder.registerCustomEditor(Category.class, new PropertyEditorSupport() {  
26.   
27.         @Override  
28.         public void setAsText(String text) throws IllegalArgumentException {  
29.             if (!StringUtils.hasText(text)) {  
30.                 return;  
31.             } else {  
32.                 Long categoryId = Long.valueOf(text);  
33.                 Category category = categoryService.findById(categoryId);  
34.                 setValue(category);  
35.             }  
36.         }  
37.     });  
38. }  

 

 

Html代码  

1.             <form:form modelAttribute="categoryEditForm" id="categoryForm" method="post" action="saveOrUpdate.do">  
2.               
3.             <form:hidden path="category.objectId" />  
4.             <input type="hidden" name="category.parent" value="${categoryEditForm.category.parent.objectId}"/>  
5.             <input type="hidden" name="category.systemInfo" value="${categoryEditForm.category.systemInfo.objectId }"/>  
6.               
7.             <div class="area">  
8.                 <div class="areaTitle">  
9.                     <div class="inner">  
10.                         <label>Category Information Form</label>  
11.                         <div class="clear"></div>  
12.                     </div>  
13.                 </div>  
14.             </div>  
15.               
16.             <div class="areaBody">  
17.     <table class="formTable">  
18.                     <tbody>  
19.                         <tr>  
20.                 <td colspan="4">  
21.                     <span class="button"><span><a href="javascript:sumbit();" class="btnSave">Submit</a></span></span>  
22.                 </td>  
23.             </tr>   
24.             <tr>  
25.                 <td colspan="4">&nbsp;</td>  
26.             </tr>  
27.             <tr>  
28.                 <td align="right">Parent Category Name:</td>  
29.                 <td colspan="3"><form:input path="category.parent.name.fullName" readonly="true" id="parentCategory" cssClass="input readOnly" /></td>                                          
30.             </tr>  
31.             <tr>  
32.                 <td align="right">Current Category Name:</td>  
33.                 <td><form:input path="category.name.fullName" id="categoryName" cssClass="input"/></td>  
34.                 <td align="right">description:</td>  
35.                 <td><form:input path="category.description" id="description" cssClass="input"/></td>  
36.             </tr>  
37.                     </tbody>  
38.                         </table>  
39.             </div>  
40.               
41. </form:form>