validation简单验证(1)
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验证:()
以验证注册为例:
reg.jsp
<%@ page language="java" pageEncoding="ISO-8859-1"%>
<%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean"%>
<%@ taglib uri="http://struts.apache.org/tags-html" prefix="html"%>
<html>
<head>
<title>JSP for DynaActionForm form</title>
</head>
<body>
<html:form action="/reg">
phone : <html:text property="phone"/><html:errors property="phone"/><br/>
email : <html:text property="email"/><html:errors property="email"/><br/>
name : <html:text property="name"/><html:errors property="name"/><br/>
<html:submit/><html:cancel/>
</html:form>
</body>
</html>
-------------------------------------------------------------------------------------------------------
struts-conf.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE struts-config PUBLIC "-//Apache Software Foundation//DTD Struts Configuration 1.2//EN" "http://struts.apache.org/dtds/struts-config_1_2.dtd">
<struts-config>
<data-sources />
<form-beans >
<form-bean name="regForm" type="org.apache.struts.validator.DynaValidatorForm">//这是一定要改为: //type="org.apache.struts.validator.DynaValidatorForm"否则验证将无法正常显示。
<form-property name="phone" type="java.lang.String" />
<form-property name="email" type="java.lang.String" />
<form-property name="name" type="java.lang.String" />
</form-bean>
</form-beans>
<global-exceptions />
<global-forwards />
<action-mappings >
<action
attribute="regForm"
input="/reg.jsp"
name="regForm"
path="/reg"
scope="request"
type="prj10.action.RegAction" />
</action-mappings>
<message-resources parameter="prj10.ApplicationResources" />
<!-- 以插件形式注册框架中的验证文件 validator-rules.xml,validation.xml 要在这里进行注册系统才能识别-->
<plug-in className="org.apache.struts.validator.ValidatorPlugIn">
<set-property property="pathnames"
value="/WEB-INF/validator-rules.xml,/WEB-INF/validation.xml"/>
</plug-in>
</struts-config>
------------------------------------------------------------------------------------------------------
ApplicationResources.porper
errors.required={0} is required.
errors.email={0} is an invalid e-mail address.
errors.long={0} must be number.
-----------------------------------------------------------------------------------------------------
validation.xml
<!DOCTYPE form-validation PUBLIC
"-//Apache Software Foundation//DTD Commons Validator Rules Configuration 1.1.3//EN"
"http://jakarta.apache.org/commons/dtds/validator_1_1_3.dtd">
<form-validation>
<formset>
<form name="regForm">
<field property="name" depends="required"><!--name:指表单的名字: -->
<msg name="required" key="errors.required" /><!--name:验证规则的名字:depends。 key="errors.required" 资源文件中的名字 -->
<arg0 name="required" key="name" resource="false" />
</field>
<field property="email" depends="required,email">
<msg name="required" key="errors.required" />
<arg0 name="required" key="email" resource="false" />
<msg name="email" key="errors.email" />
<arg0 name="email" key="email" resource="false"/>
</field>
<field property="phone" depends="required,long">
<msg name="required" key="errors.required" />
<arg0 name="required" key="phone" resource="false" />
<msg name="long" key="errors.long" />
<arg0 name="long" key="phone" resource="false"/>
</field>
</form>
</formset>
</form-validation>
--------------------------------------------------------------------------------------------------------------------------
说明:validation.xml是一个验证文件,调用validator-rules.xml中的验证规则。
主要步骤;
1、根据表单写验证文件validation.xml和资源文件ApplicationResources.porper。
2、将上面的文件在配制文件中注册。
3、配制文件中将<form-bean>中的内容改为:<form-bean name="regForm" type="org.apache.struts.validator.DynaValidatorForm">
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