📄 入門 20 - validator客戶端驗證 - javaworld@tw.htm
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<DIV class=codeContent><PRE><%@ taglib uri=<SPAN class=java-quote>"/tags/struts-bean"</SPAN> prefix=<SPAN class=java-quote>"bean"</SPAN> %>
<%@ taglib uri=<SPAN class=java-quote>"/tags/struts-html"</SPAN> prefix=<SPAN class=java-quote>"html"</SPAN> %>
<%@page contentType=<SPAN class=java-quote>"text/html; charset=Big5"</SPAN>%>
<html:html>
<head>
<title><bean:message key=<SPAN class=java-quote>"welcome.title"</SPAN>/></title>
<html:base/>
</head>
<body bgcolor=<SPAN class=java-quote>"white"</SPAN>>
<html:errors/>
<html:form action=<SPAN class=java-quote>"/LoginAction"</SPAN> focus=<SPAN class=java-quote>"name"</SPAN> onsubmit=<SPAN class=java-quote>"<SPAN class=java-keyword>return</SPAN> validateUserForm(<SPAN class=java-keyword>this</SPAN>)"</SPAN>>
名稱：<html:text property=<SPAN class=java-quote>"name"</SPAN> size=<SPAN class=java-quote>"20"</SPAN>/><br>
郵件：<html:text property=<SPAN class=java-quote>"email"</SPAN> size=<SPAN class=java-quote>"20"</SPAN>/><br>
<html:submit/> <html:reset/>
</html:form>
<html:javascript formName=<SPAN class=java-quote>"userForm"</SPAN>/>
</body>
</html:html></PRE></DIV></DIV><BR> 在validation.xml的設定上，您可以定義一些常量，以方便在設定過程中使用，例如定義mask的regular
expression，例如：
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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><global>
<constant>
<constant-name>email</constant-name>
<constant-value>^[_a-z0-9-]+(.[_a-z0-9-]+)*@[a-z0-9-]+(.[a-z0-9-]+)*$</constant-value>
</constant>
</global>
<formset>
<form name=<SPAN class=java-quote>"userForm"</SPAN>>
<field
property=<SPAN class=java-quote>"name"</SPAN>
depends=<SPAN class=java-quote>"required"</SPAN>>
<arg0 key=<SPAN class=java-quote>"logon.username.displayname"</SPAN>/>
</field>
<field
property=<SPAN class=java-quote>"email"</SPAN>
depends=<SPAN class=java-quote>"required,mask"</SPAN>>
<arg0 key=<SPAN class=java-quote>"logon.email.displayname"</SPAN>/>
<<SPAN class=java-keyword>var</SPAN>>
<<SPAN class=java-keyword>var</SPAN>-name>mask</<SPAN class=java-keyword>var</SPAN>-name>
<<SPAN class=java-keyword>var</SPAN>-value>${email}</<SPAN class=java-keyword>var</SPAN>-value>
</<SPAN class=java-keyword>var</SPAN>>
</field>
</form>
<formset></PRE></DIV></DIV><BR> 定義常量在管理上會很方便，日後如果要改變regular
expression，就只要更改常量中的設定就好了。 <!-- page content ends --><!--<rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:trackback="http://madskills.com/public/xml/rss/module/trackback/"><rdf:Description rdf:about="http://www.javaworld.com.tw/confluence/pages/viewpage.action?pageId=617" dc:identifier="http://www.javaworld.com.tw/confluence/pages/viewpage.action?pageId=617" dc:title="入門 20 - Validator客戶端驗證" trackback:ping="http://www.javaworld.com.tw/confluence/rpc/trackback/617"/></rdf:RDF>-->
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