📄 入門 22 - validator訊息檔管理 - javaworld@tw.htm
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</formset>
<formset language=<SPAN class=java-quote>"zh"</SPAN>>
....
</formset></PRE></DIV></DIV><BR> 每一個<formset>相對於一個訊息對應，language設定為zh，表示使用application_zh.properties檔案中的訊息，如果沒有設定，就使用預設的Locale設定。
<BR> Validator預設會使用一些key-value訊息對應，您也可以使用自訂的訊息來顯示驗證訊息，例如：
<DIV class=code
style="BORDER-TOP-STYLE: solid; BORDER-RIGHT-STYLE: solid; BORDER-LEFT-STYLE: solid; BORDER-BOTTOM-STYLE: solid">
<DIV class=codeHeader
style="BORDER-BOTTOM-STYLE: solid"><B>validation.xml</B></DIV>
<DIV class=codeContent><PRE><form name=<SPAN class=java-quote>"userForm"</SPAN>>
<field
property=<SPAN class=java-quote>"name"</SPAN>
depends=<SPAN class=java-quote>"required,mask"</SPAN>>
<msg
name=<SPAN class=java-quote>"mask"</SPAN>
key=<SPAN class=java-quote>"logon.username.maskmsg"</SPAN>/>
<arg0 key=<SPAN class=java-quote>"logon.username.displayname"</SPAN>/>
<<SPAN class=java-keyword>var</SPAN>>
<<SPAN class=java-keyword>var</SPAN>-name>mask</<SPAN class=java-keyword>var</SPAN>-name>
<<SPAN class=java-keyword>var</SPAN>-value>^[a-zA-Z0-9]*$</<SPAN class=java-keyword>var</SPAN>-value>
</<SPAN class=java-keyword>var</SPAN>>
</field>
</form></PRE></DIV></DIV><BR> 假如您在application.properties中有這麼一個key-value對應：
<DIV class=code
style="BORDER-TOP-STYLE: solid; BORDER-RIGHT-STYLE: solid; BORDER-LEFT-STYLE: solid; BORDER-BOTTOM-STYLE: solid">
<DIV class=codeHeader
style="BORDER-BOTTOM-STYLE: solid"><B>application.properties</B></DIV>
<DIV class=codeContent><PRE>logon.username.maskmsg={0} must be letters and numbers, no spaces.</PRE></DIV></DIV> <BR>則這個訊息會替換errors.invalid中的訊息（mask驗證器預設查找的key-value對應），此時<arg0>會替換{0}中的部份，當然logon.username.displayname在application.properties中也必須有設定。
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