在错误验证消息上获取组件ID [英] Getting the component id on the error validation message

问题描述

我已经尝试过用这段代码将出生日期字段与表单相符:

I've tried this piece of code for submetting a date of birth field on a form :

<h:form>
    <h2>JSF Registration App</h2>
    <h4>Registration Form</h4>
    <table>
        <tr>
            <td>First Name:</td>
            <td>
        <h:inputText label="First Name" id="fname" value="#{mybean.firstName}" required="true" />
                <h:message for="fname" />
            </td>
        </tr>
        <tr>
            <td>
                <h:inputText value="#{userBean.dob}" id="dob" required="true" > 
                    <f:convertDateTime pattern="MM-dd-yy"/> 
                </h:inputText> (mm-dd-yy) 
                <h:message for="dob"/>
            </td>
        </tr>

    </table>

    <p>
        <h:commandButton value="clique ici pour valider" action="Register" />
    </p>

</h:form>

我将该字段留空后得到了此消息

I got this message after leaving the field empty

(mm-dd-yy) j_idt5:dob : erreur de validation. Vous devez indiquer une valeur.

为什么消息中包含jsf自动生成的ID"j_idt5:dob"?

why there is the jsf automatically generated id " j_idt5:dob" within the message ?

推荐答案

只要您未明确指定输入组件的label属性，输入组件的客户端ID便成为默认的转换/验证消息标签. :

The input component's client ID becomes the default conversion/validation message label as long as you don't explicitly specify the label attribute of the input component like so:

<h:inputText ... label="Date of birth" />

如果您这样做，则消息将变为:

If you do it, then the message will become:

出生日期:未确认. Vous devez和valeur的信使.

Date of birth : erreur de validation. Vous devez indiquer une valeur.

---

客户端ID中的j_idt5来自<h:form>.如果给它一个固定的ID，如id="register"(并保留输入组件的label)，则消息将变为:

---

The j_idt5 in the client ID is coming from <h:form>. If you give it a fixed ID like id="register" (and keep the label of the input component omitted), then the message becomes:

register:dob:错误的验证. Vous devez和valeur的信使.

register:dob : erreur de validation. Vous devez indiquer une valeur.

---

如有必要，可以通过validatorMessage属性覆盖整个验证器消息.

---

If necessary, you override the whole validator message by validatorMessage attribute.

<h:inputText ... validatorMessage="Please enter date of birth." />

请输入出生日期.

Please enter date of birth.

---

等效地，来自<f:convertDateTime>的转换错误消息可由converterMessage属性覆盖.

---

Equivalently, the conversion error message from <f:convertDateTime> is overridable by converterMessage attribute.

<h:inputText ... converterMessage="Please enter date of birth in mm-dd-yy format." />

请以mm-dd-yy格式输入出生日期.

Please enter date of birth in mm-dd-yy format.

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