Struts2 AJAX 验证

来源：互联网发布：java基础电影售票系统编辑：程序博客网时间：2024/06/08 12:09

(1)

<%@ taglib prefix="s" uri="/struts-tags" %><%@ taglib prefix="sx" uri="/struts-dojo-tags" %> <sx:head cache="false" compressed="false"/><div id="response" style="border: 1px solid black" mce_style="border: 1px solid black"> Response goes here</div><br /><s:form method="post" theme="xhtml" namespace="/nodecorate" action="quizAjax" id="form"> <s:textfield label="Name" name="name" /> <s:textfield label="Age" name="age" /> <s:textfield label="Favorite color" name="answer"/> <sx:submit validate="true" //ajax验证 ajaxAfterValidation="true" //这个表示验证通过后，提交，但不跳转 targets="response" //这个表示响应的内容填充到id=response的div中 showLoadingText="false"/></s:form><sx:a formId="form" validate="true" //ajax验证 ajaxAfterValidation="true" //不跳转 targets="response" //显示响应的内容到id="response"中 showLoadingText="false">Submit Form with a link</sx:a>这个链接可以验证form，并提交，但是不跳转<input type="checkbox" id="checkbox">Submit Form listening to an event on an element (check to submit)<sx:bind id="bind" formId="form" //这个是验证from的 sources="checkbox" validate="true" events="onchange" ajaxAfterValidation="true" targets="response" showLoadingText="false"/>选中checkbox,并点击。也可以验证，提交但不跳转。<h5>2.Use AJAX validation, and regular request (ajaxAfterValidation="false", default), if validation succeeds</h5><br /><s:form method="post" theme="xhtml" namespace="/nodecorate" action="quizAjax" id="form2"> <s:textfield label="Name" name="name" /> <s:textfield label="Age" name="age" /> <s:textfield label="Favorite color" name="answer"/> <sx:submit validate="true" //ajax验证 ajaxAfterValidation="false" //跳转 showLoadingText="false"/></s:form><sx:a formId="form2" validate="true" ajaxAfterValidation="false" showLoadingText="false">Submit Form with a link</sx:a><br /><br /><input type="checkbox" id="checkbox2">Submit Form listening to an event on an element (check to submit)<sx:bind formId="form2" sources="checkbox2" validate="true" events="onchange" ajaxAfterValidation="false" showLoadingText="false"/></body></html>

(2)上面的需要在action中加interceptor:

<action name="quizAjax" class="org.apache.struts2.showcase.validation.QuizAction"> <interceptor-ref name="jsonValidationWorkflowStack"/> <result name="input">quiz-ajax.jsp</result> <result>quiz-success.jsp</result></action>

(3)QuizAction-validation.xml //放在和平共处QuizAction在同一目录，QuizAction是个Action，它象个javabean.没有执行任何方法。继承ActionSupport。

它有三个属性：name,age,color.它只对name,age验证，代码如下：

<!DOCTYPE validators PUBLIC "-//OpenSymphony Group//XWork Validator 1.0.2//EN" "http://www.opensymphony.com/xwork/xwork-validator-1.0.2.dtd"><validators> <field name="name"> <field-validator type="requiredstring"> <message>You must enter a name</message> </field-validator> </field> <field name="age"> <field-validator type="int"> <param name="min">13</param> <param name="max">19</param> <message>Only people ages 13 to 19 may take this quiz</message> </field-validator> </field></message> </field-validator> </field>--></validators>

(4)

.errorMessage { color: red;}