注:Form有四种:
{
\import org.apache.struts.action.ActionForm;(静态Form)
import org.apache.struts.action.DynaActionForm;(动态Form)
import org.apache.struts.validator.DynaValidatorActionForm;(动态Form'过程'验证,在Validation.xml中应注意的是:<form name="/loginForm"> </form>中name的值应'访问为路径')
()import org.apache.struts.validator.DynaValidatorForm;
}
1
<form-bean name="form1" type="org.apache.struts.validator.DynaValidatorForm">
          <form-property name="username" type="java.lang.String"/>
    </form-bean>
注意：这里必须是DynaValidatorForm
2 <action
      attribute="loginForm"
      input="/login.jsp"
      name="form1"    
      path="/login"
      scope="request"
      type="action.LoginAction">
      <forward name="success" path="/success.jsp" />
      <forward name="failure" path="/failure.jsp" />
    </action>
注意：这里name指向form1。另外，保存到内置对象中的是  attribute="loginForm"
3
<form name="loginForm">
      <field property="username" depends="minlength">
             <arg0 key="loginForm.username"/>
             <arg1 key="${var:minlength}" name="minlength" resource="false"/>
      <var><var-name>minlength</var-name>
           <var-value>6</var-value>
      </var>
</field>
</form>
注意：<form name="loginForm"> 和attribute="loginForm"相对应