WebWork的Validation

       WebWork依賴XWork的校驗架構，在action執行之前，來啟動對action的輸入資料的校驗規則的運用。

1，添加校驗器，在/WEB-INF/class添加一個名為validators.xml，添加自定義校驗器 xml 代碼   

1. <!DOCTYPE validators PUBLIC "-//OpenSymphony Group//XWork Validator 1.0//EN"

       "http://www.opensymphony.com/xwork/xwork-validator-1.0.dtd">

2. <validators>  
3.     <validator name="required" class="com.opensymphony.xwork.validator.validators.RequiredFieldValidator"/>  
4.     <validator name="requiredstring" class="com.opensymphony.xwork.validator.validators.RequiredStringValidator"/>  
5.     <validator name="int" class="com.opensymphony.xwork.validator.validators.IntRangeFieldValidator"/>  
6.     <validator name="double" class="com.opensymphony.xwork.validator.validators.DoubleRangeFieldValidator" />  
7.     <validator name="date" class="com.opensymphony.xwork.validator.validators.DateRangeFieldValidator"/>  
8.     <validator name="expression" class="com.opensymphony.xwork.validator.validators.ExpressionValidator"/>  
9.     <validator name="fieldexpression" class="com.opensymphony.xwork.validator.validators.FieldExpressionValidator"/>  
10.     <validator name="email" class="com.opensymphony.xwork.validator.validators.EmailValidator"/>  
11.     <validator name="url" class="com.opensymphony.xwork.validator.validators.URLValidator"/>  
12.     <validator name="visitor" class="com.opensymphony.xwork.validator.validators.VisitorFieldValidator"/>  
13.     <validator name="conversion" class="com.opensymphony.xwork.validator.validators.ConversionErrorFieldValidator"/>  
14.     <validator name="stringlength" class="com.opensymphony.xwork.validator.validators.StringLengthFieldValidator"/>  
15. validators>  

2，打開校驗，在xwork定義interceptor,為需要開發校驗的action開啟攔截器,攔截器的校驗範圍 xml 代碼  

1. <interceptors>  
2.             <interceptor name="adminOnly" class="adminInterceptor"/> 
3.              <interceptor-stack name="defaultStack">  
4.                 <interceptor-ref name="exception"/>  
5.                 <interceptor-ref name="alias"/>  
6.                 <interceptor-ref name="servlet-config"/>  
7.                 <interceptor-ref name="prepare"/>  
8.                 <interceptor-ref name="i18n"/>  
9.                 <interceptor-ref name="chain"/>  
10.                 <interceptor-ref name="model-driven"/>  
11.                 <interceptor-ref name="fileUpload"/>  
12.                 <interceptor-ref name="static-params"/>  
13.                 <interceptor-ref name="params"/>  
14.                 <interceptor-ref name="conversionError"/>  
15.                 <interceptor-ref name="validation">  
16.                     <param name="excludeMethods">cancel,execute,delete,edit,list,defaultparam>  
17.                 interceptor-ref>  
18.                 <interceptor-ref name="workflow">  
19.                     <param name="excludeMethods">input,back,cancelparam>  
20.                 interceptor-ref>  
21.             interceptor-stack>  
22.             <interceptor-stack name="validationWorkflowStack">  
23.                 <interceptor-ref name="defaultStack"/>  
24.                 <interceptor-ref name="validation"/>  
25.                 <interceptor-ref name="workflow"/>  
26.             interceptor-stack>-->  
27.             <interceptor-stack name="fileUploadStack">  
28.                 <interceptor-ref name="fileUpload"/>  
29.                 <interceptor-ref name="defaultStack"/>  
30.             interceptor-stack>  
31.             <interceptor-stack name="adminCheck">  
32.                 <interceptor-ref name="defaultStack"/>  
33.                 <interceptor-ref name="adminOnly"/>  
34.             interceptor-stack>  
35.         interceptors>  

3,校驗規則，每個action類，指定在 ActionName-validation.xml檔案中， xml 代碼  

1. <!DOCTYPE validators PUBLIC "-//OpenSymphony Group//XWork Validator 1.0.2//EN"

       "http://www.opensymphony.com/xwork/xwork-validator-1.0.2.dtd">

2. <validators>  
3.     <field name="customerCreditDetails.customer.id">  
4.         <field-validator type="required">  
5.             <message key="errors.required"/>  
6.         field-validator>  
7.         <field-validator type="stringlength">  
8.             <param name="minLength">1param>  
9.             <param name="trim">trueparam>  
10.             <message key="errors.required"/>  
11.         field-validator>  
12.    field>  
13.    <field name="customerCreditDetails.amount">  
14.         <field-validator type="required">  
15.             <message key="errors.required"/>  
16.         field-validator>  
17.         <field-validator type="double">  
18.             <param name="minInclusive">1.0param>  
19.             <message key="errors.intLeast"/>  
20.         field-validator>  
21.     field>  
22.     <field name="customerCreditDetails.operateTime">  
23.         <field-validator type="required">  
24.             <message key="errors.required"/>  
25.         field-validator>  
26.         <field-validator type="date">  
27.             <message key="errors.required"/>  
28.         field-validator>  
29.     field>  
30.     <field name="customerCreditDetails.currencyType">  
31.         <field-validator type="required">  
32.             <message key="errors.required"/>  
33.         field-validator>      
34.         <field-validator type="int">  
35.             <param name="min">1param>  
36.             <message key="errors.required"/>  
37.         field-validator>  
38.     field>  
39.     <field name="customerCreditDetails.payType">  
40.         <field-validator type="required">  
41.             <message key="errors.required"/>  
42.         field-validator>      
43.         <field-validator type="int">  
44.             <param name="min">1param>  
45.             <message key="errors.required"/>  
46.         field-validator>  
47.     field>  
48. >  

這是簡單驗證