struts1.x的动态验证实例
1.写一个Action类:
2.配置struts.xml文件:
3.建立一个validation.xml配置文件:
4.配置ApplicationResources.properties文件:
5.建立login.jsp跟success.jsp：
login.jsp:
success.jsp:
public class LoginAction extends Action {
public ActionForward execute(ActionMapping mapping, ActionForm form,
HttpServletRequest request, HttpServletResponse response) {
DynaValidatorForm loginForm = (DynaValidatorForm) form;
return mapping.findForward("success");
}
}
2.配置struts.xml文件:
<?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="loginForm" type="org.apache.struts.validator.DynaValidatorForm">
<form-property name="userName" type="java.lang.String" />
</form-bean>
</form-beans>
<global-exceptions />
<global-forwards />
<action-mappings >
<action attribute="loginForm" input="/login.jsp"
name="loginForm" path="/login" scope="request"
type="com.and4walker.struts.action.LoginAction" >
<forward name="success" path="/success.jsp" />
</action>
</action-mappings>
<message-resources parameter="com.and4walker.struts.ApplicationResources" />
<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>
3.建立一个validation.xml配置文件:
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE form-validation PUBLIC "-//Apache Software Foundation//DTD Commons Validator Rules Configuration 1.1.3//EN" "validator_1_1_3.dtd" >
<form-validation>
<formset>
<form name="loginForm">
<field property="userName" depends="required,minlength">
<arg key="label.username" resource="true" />
<arg1 key="${var:minlength}" resource="false" />
<var>
<var-name>minlength</var-name>
<var-value>5</var-value>
</var>
</field>
</form>
</formset>
</form-validation>
4.配置ApplicationResources.properties文件:
# Resources for parameter 'com.and4walker.struts.ApplicationResources'
# Project strutsupload
label.username=username
<!-- 下面的对应关系可以在validator-rules.xml中找到 -->
errors.required={0} is required.
errors.minlength={0} can not be less than {1} characters.
5.建立login.jsp跟success.jsp：
login.jsp:
<%@ page language="java" pageEncoding="UTF-8"%> <%@ taglib uri="http://jakarta.apache.org/struts/tags-html" prefix="html"%> <html> <body> <html:javascript formName="loginForm"/> <html:form action="/login" onsubmit="return validateLoginForm(this)"> 姓名: <html:text property="userName"/><br/> <html:submit/> </html:form> </body> </html>
success.jsp:
<%@ page language="java" import="java.util.*" pageEncoding="UTF-8"%> 测试成功！