DynaValidatorForm验证,errors.head能够显示,但error.username.required却不能显示

Question

资源文件ApplicationResources.properties:
login.title=Struts Demo
login.heading=<h1>Welcome to the StrutsDemo !</h1>
lgoin.message=Welcome to the StrutsDemo !
login.inputPassword=Please input Password :
login.inputName=Please input Username :
loginOK.title= User Login Successfull
loginOK.message=<h1>Login Successfull !</h1>
error.name.required=<h3><font color="red">UserName is Required !</font></h3>
error.password.required=<h3><font color="red">Password is Required !</font></h3>
error.name.wrong=<h3><font color="red">UserName is Wrong !</font></h3>
error.password.wrong=<h3><font color="red">Password is Wrong !</font></h3>
errors.footer=</ul><hr>
errors.header=<h3><font color="red">Validation Error</font></h3>You must correct the following error(s) before proceeding:<ul>
prompt.name=Name
prompt.password=Password

Answer 1

<form name="logonForm">
            <field property="name" depends="required">
                <msg name="required" key="error.name.required" />
            </field>            <field property="password" depends="required">
                <msg name="required" key="error.password.required" />
             </field>
 </form>