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锁定老帖子 主题：struts验证两个字段是否相等
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发表时间：2008-10-26
最后修改：2011-01-21
在配置Struts1.2的Validator进行两个字段是否相等检验时出现错误。代码如下：
前台页面： <%@ page language="java" pageEncoding="UTF-8"%> <%@ taglib uri="http://struts.apache.org/tags-bean" prefix="bean"%> <%@ taglib uri="http://struts.apache.org/tags-html" prefix="html"%> <%@ taglib uri="http://struts.apache.org/tags-logic" prefix="logic"%> <html> <head> <title>JSP for RegisterForm form</title> </head> <body> <html:javascript formName="registerForm"/> <html:errors/> <html:form action="/register" onsubmit="return validateRegisterForm(this);"> password : <html:password property="password"/><html:errors property="password"/><br/> password1 : <html:password property="password1"/><html:errors property="password1"/><br/> <html:submit/><html:cancel/> </html:form> </body> </html> 自定义的验证规则： <!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>
<global>
<validator name="identical"
classname="com.hxb.validator.IdenticalField"
method="validateIdentical"
methodParams="java.lang.Object,
org.apache.commons.validator.ValidatorAction,
org.apache.commons.validator.Field,
org.apache.struts.action.ActionMessages,
org.apache.commons.validator.Validator,
javax.servlet.http.HttpServletRequest"
msg="errors.identical"/>
</global>
</form-validation>
validation.xml文件： <!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="registerForm"> <field property="password" depends="required" > <arg0 key="form.password"/> </field> <field property="password1" depends="required,identical" > <arg0 key="form.password1"/> <arg1 key="form.password"/> <var> <var-name>firstProperty</var-name> <var-value>password</var-value> </var> </field> </form> </formset> </form-validation> 验证类： package com.hxb.validator;
import org.apache.commons.validator.GenericValidator;
import org.apache.commons.validator.util.ValidatorUtils;
import org.apache.struts.action.ActionMessages;
import org.apache.struts.validator.Resources;
public class IdenticalField{
public static boolean validateIdentical(java.lang.Object bean,
org.apache.commons.validator.ValidatorAction va,
org.apache.commons.validator.Field field,
ActionMessages errors,
org.apache.commons.validator.Validator validator,
javax.servlet.http.HttpServletRequest request){
String value2 = ValidatorUtils.getValueAsString(bean, field.getProperty());
if (!GenericValidator.isBlankOrNull(value2)) {
if(value2.equals(ValidatorUtils.getValueAsString(bean, field.getVarValue("firstProperty")))){
return true;
}
}
errors.add(field.getProperty(),
Resources.getActionMessage(request, va, field));
return false;
}
}
资源文件： form.password=password form.password1=password1 errors.identical={0} and {1} are not identical. struts-config.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="registerForm" type="com.hxb.struts.form.RegisterForm" />
</form-beans>
<global-exceptions />
<global-forwards />
<action-mappings >
<action
attribute="registerForm"
input="/register.jsp"
name="registerForm"
path="/register"
scope="request"
type="com.hxb.struts.action.RegisterAction"
validate="true"/>
</action-mappings>
<message-resources parameter="com.hxb.struts.ApplicationResources" />
<plug-in className="org.apache.struts.validator.ValidatorPlugIn">
<set-property property="pathnames" value="/WEB-INF/custom-validator-rules.xml,
/WEB-INF/validation.xml,/WEB-INF/validator-rules.xml"/>
</plug-in>
</struts-config>
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