JSF 错误消息和程序卡住。 JSON 解析错误和 primefaces

我在facelets中有以下形式：

 <h:form styleClass="registrationForm">
            <h:panelGrid columns="3" cellpadding="5" style="width:600px">

                <h:outputLabel for="registerLogin" styleClass="registerLabel" value="Логин: " />
                <p:inputText id="registerLogin" styleClass="registerText" value="#{register.login}" 
                            required="true" requiredMessage="Введите Логин" />  
                <h:panelGrid width="200">
                    <p:message for="registerLogin" />   
                </h:panelGrid>

                <h:outputLabel for="registrationPassword" styleClass="registerLabel" value="Пароль: " />
                <p:password id="registrationPassword"  styleClass="registerText" feedback="true" promptLabel="Введите пароль" weakLabel="Слабый пароль"  
                            goodLabel="Нормальный пароль" strongLabel="Сложный пароль" value="#{register.password}" 
                            required="true" requiredMessage="Введите Пароль" /> 
                <h:panelGrid width="200">
                    <p:message for="registrationPassword" />    
                </h:panelGrid>              

                <h:outputLabel for="registrationMail" styleClass="registerLabel" value="Адрес эл. почты: " />
                <p:inputText id="registrationMail"  styleClass="registerText" value="#{register.email}" 
                        required="true" requiredMessage="Введите Адрес Почты" >
                    <f:validateRegex pattern="^[_A-Za-z0-9-\+]+(\.[_A-Za-z0-9-]+)*@[A-Za-z0-9-]+(\.[A-Za-z0-9]+)*(\.[A-Za-z]{2,})$" />
                </p:inputText>
                <h:panelGrid width="200">
                    <p:message for="registrationMail" />        
                </h:panelGrid>                               

                <h:outputLabel for="registrationSex" styleClass="registerLabel" value="Пол: " />
                <p:selectOneRadio id="registrationSex" value="#{register.sex}">
                    <f:selectItem itemLabel="М" itemValue="male" />
                    <f:selectItem itemLabel="Ж" itemValue="female" />           
                </p:selectOneRadio>             
                <h:outputText value="" />

                <h:outputLabel for="registrationName" styleClass="registerLabel" value="Отображаемое имя: " />
                <p:inputText id="registrationName"  styleClass="registerText" value="#{register.name}" 
                        required="true" requiredMessage="Ведите Имя" />
                <h:panelGrid width="200">
                    <p:message for="registrationName" />            
                </h:panelGrid>              

                <h:outputLabel for="registrationCalendar" styleClass="registerLabel" value="Дата рождения: " />
                <p:calendar id="registrationCalendar" size="24" navigator="true" yearRange="-68" 
                                locale="ru" effect="explode" value="#{register.birthdate}" 
                                required="true" requiredMessage="Введите Дату Рождения" />   
                <h:panelGrid width="200">
                    <p:message for="registrationCalendar" />            
                </h:panelGrid>                          

                <h:outputLabel for="registrationConfirm" styleClass="registerLabel" value="" />
                <p:commandButton id="registrationConfirm" value="Зарегистрироваться" styleClass="registerButton" 
                                actionListener="#{register.processRegistration}" update=":loginField :content :title" onclick="changeHeader()" />

            </h:panelGrid>  
        </h:form>

以及以下支持 bean：

@ManagedBean
@RequestScoped
public class Register {

    @PersistenceContext(unitName="EnglishOnline")
    private EntityManager em;
    @Resource
    UserTransaction utx;
    @ManagedProperty(value="#{login}")
    private Login loginbean;
    @ManagedProperty(value="#{navigationBean}")
    private NavigationBean nav;

    private String name;
    private Sex sex;
    private Date birthdate;
    private String email;
    private String login;
    private String password;

    ...getters and setters ...

    public void setLoginbean(Login log) {
        this.loginbean = log;
    }
    public void setNav(NavigationBean nav) {
        this.nav = nav;
    }

    public void processRegistration(ActionEvent event) throws Exception {   

        User user = new User();
        user.setLogin(login);
        user.setPassword(password);
        user.setEmail(email);
        user.setName(name);
        user.setBirthdate(birthdate);
        user.setSex(sex);
        user.setRegistrationdate(new Date());

        TypedQuery<User> query = em.createQuery("SELECT u FROM User u WHERE u.login = :uLogin OR u.email = :mail", User.class);
        query.setParameter("uLogin", user.getLogin());
        query.setParameter("mail", user.getEmail());
        List<User> users = query.getResultList();
        if (users.size() != 0) {
            FacesContext.getCurrentInstance().addMessage(null, new FacesMessage("Ошибка", "Пользователь с таким логином или почтовым адресом уже существует!"));    
        } else {
            utx.begin();
            em.persist(user);
            utx.commit();
            loginbean.setUser(user);        
            nav.setHeader("Главная");
            nav.setAddress("templates/start.xhtml");            
        }       

    }   

}

当我单击一次注册按钮时，某些字段出现错误消息，然后我无法再注册。我的意思是，如果我设法立即注册而没有验证错误，那么一切都可以...但是如果出现任何验证消息，则程序会停止响应 - 即使我更改字段值，也无法单击注册按钮并出现错误消息不再消失。 出了什么问题？

当我执行相同的操作时：当第一次提交表单时，字段为空，验证将继续，并且“验证”一词出现在控制台中。但根据后续请求，即使验证器也不会启动 - 它只是不再打印任何内容。有任何想法吗？至于Javascript错误：

Problem: SyntaxError: JSON.parse: unexpected non-whitespace character after JSON data
: http://localhost:8080/EnglishOnline/javax.faces.resource/jquery/jquery.js.jsf?ln=primefaces

其他没什么可疑的。

聚苯硫醚。从服务器返回以下响应：

<?xml version='1.0' encoding='UTF-8'?>
<partial-response><changes><update id="loginField"><![CDATA[<div id="loginField">
<form id="j_idt12" name="j_idt12" method="post" action="/EnglishOnline/index.jsf" class="login_form" enctype="application/x-www-form-urlencoded">
<input type="hidden" name="j_idt12" value="j_idt12" />
<span id="j_idt12:j_idt13"></span><script id="j_idt12:j_idt13_s" type="text/javascript">$(function(){PrimeFaces.cw('Growl','widget_j_idt12_j_idt13',{id:'j_idt12:j_idt13',sticky:false,life:1500,escape:true,msgs:[]});});</script><label for="j_idt12:login">
Логин: </label><input id="j_idt12:login" name="j_idt12:login" type="text" value="" class="ui-inputfield ui-inputtext ui-widget ui-state-default ui-corner-all login_field" /><script id="j_idt12:login_s" type="text/javascript">PrimeFaces.cw('InputText','widget_j_idt12_login',{id:'j_idt12:login'});</script><label for="j_idt12:password">
Пароль: </label><input id="j_idt12:password" name="j_idt12:password" type="password" class="ui-inputfield ui-password ui-widget ui-state-default ui-corner-all login_field" /><script id="j_idt12:password_s" type="text/javascript">$(function(){PrimeFaces.cw('Password','widget_j_idt12_password',{id:'j_idt12:password'});});</script><button id="j_idt12:j_idt16" name="j_idt12:j_idt16" class="ui-button ui-widget ui-state-default ui-corner-all ui-button-text-only login_button" onclick="PrimeFaces.ab({source:'j_idt12:j_idt16',update:'loginField'});return false;" type="submit"><span class="ui-button-text">Войти</span></button><script id="j_idt12:j_idt16_s" type="text/javascript">PrimeFaces.cw('CommandButton','widget_j_idt12_j_idt16',{id:'j_idt12:j_idt16'});</script>
</form><a id="j_idt20" href="#" class="ui-commandlink register_link" onclick="changeHeader();PrimeFaces.ab({source:'j_idt20',update:'content title'});return false;">Регистрация</a></div>]]></update><update id="title"><![CDATA[<span id="title">Регистрация</span>]]></update><update id="content"><![CDATA[<span id="content"><div class="registrationPanel">
<form id="registrationForm" name="registrationForm" method="post" action="/EnglishOnline/index.jsf" class="registrationForm" enctype="application/x-www-form-urlencoded">
<input type="hidden" name="registrationForm" value="registrationForm" />
<table cellpadding="5">
<tbody>
<tr>
<td><label for="registrationForm:registrationLogin" class="registerLabel">
Логин: </label></td>
<td><input id="registrationForm:registrationLogin" name="registrationForm:registrationLogin" type="text" value="" class="ui-inputfield ui-inputtext ui-widget ui-state-default ui-corner-all ui-state-error registerText" /><script id="registrationForm:registrationLogin_s" type="text/javascript">PrimeFaces.cw('InputText','widget_registrationForm_registrationLogin',{id:'registrationForm:registrationLogin'});</script></td>
</tr>
<tr>
<td><label for="registrationForm:registrationPassword" class="registerLabel">
Пароль: </label></td>
<td><input id="registrationForm:registrationPassword" name="registrationForm:registrationPassword" type="password" class="ui-inputfield ui-password ui-widget ui-state-default ui-corner-all registerText" /><script id="registrationForm:registrationPassword_s" type="text/javascript">$(function(){PrimeFaces.cw('Password','widget_registrationForm_registrationPassword',{id:'registrationForm:registrationPassword',feedback:true,inline:false,promptLabel:'Введите пароль',weakLabel:'Слабый пароль',goodLabel:'Нормальный пароль',strongLabel:'Сложный пароль'});});</script></td>
</tr>
<tr>
<td><label for="registrationForm:registrationMail" class="registerLabel">
Адрес эл. почты: </label></td>
<td><input id="registrationForm:registrationMail" name="registrationForm:registrationMail" type="text" value="" class="ui-inputfield ui-inputtext ui-widget ui-state-default ui-corner-all registerText" /><script id="registrationForm:registrationMail_s" type="text/javascript">PrimeFaces.cw('InputText','widget_registrationForm_registrationMail',{id:'registrationForm:registrationMail'});</script></td>
</tr>
<tr>
<td><label for="registrationForm:registrationSex" class="registerLabel">
Пол: </label></td>
<td><table id="registrationForm:registrationSex" class="ui-selectoneradio ui-widget"><td><div class="ui-radiobutton ui-widget"><div class="ui-helper-hidden-accessible"><input id="registrationForm:registrationSex:0" name="registrationForm:registrationSex" type="radio" value="male" /></div><div class="ui-radiobutton-box ui-widget ui-corner-all ui-radiobutton-relative ui-state-default"><span class="ui-radiobutton-icon"></span></div></div></td><td><label for="registrationForm:registrationSex:0">М</label></td><td><div class="ui-radiobutton ui-widget"><div class="ui-helper-hidden-accessible"><input id="registrationForm:registrationSex:1" name="registrationForm:registrationSex" type="radio" value="female" checked="checked" /></div><div class="ui-radiobutton-box ui-widget ui-corner-all ui-radiobutton-relative ui-state-default ui-state-active"><span class="ui-radiobutton-icon ui-icon ui-icon-bullet"></span></div></div></td><td><label for="registrationForm:registrationSex:1">Ж</label></td></table><script id="registrationForm:registrationSex_s" type="text/javascript">$(function(){PrimeFaces.cw('SelectOneRadio','widget_registrationForm_registrationSex',{id:'registrationForm:registrationSex'});});</script></td>
</tr>
<tr>
<td><label for="registrationForm:registrationName" class="registerLabel">
Отображаемое имя: </label></td>
<td><input id="registrationForm:registrationName" name="registrationForm:registrationName" type="text" value="" class="ui-inputfield ui-inputtext ui-widget ui-state-default ui-corner-all registerText" /><script id="registrationForm:registrationName_s" type="text/javascript">PrimeFaces.cw('InputText','widget_registrationForm_registrationName',{id:'registrationForm:registrationName'});</script></td>
</tr>
<tr>
<td><label for="registrationForm:registrationCalendar" class="registerLabel">
Дата рождения: </label></td>
<td><span id="registrationForm:registrationCalendar"><input id="registrationForm:registrationCalendar_input" name="registrationForm:registrationCalendar_input" type="text" class="ui-inputfield ui-widget ui-state-default ui-corner-all" size="24" /></span><script id="registrationForm:registrationCalendar_s" type="text/javascript">$(function(){PrimeFaces.cw('Calendar','widget_registrationForm_registrationCalendar',{id:'registrationForm:registrationCalendar',popup:true,locale:'ru',dateFormat:'dd.mm.y',yearRange:'-68',changeMonth:true,changeYear:true,showAnim:'explode',duration:'normal'});});</script></td>
</tr>
<tr>
<td><label for="registrationForm:registrationConfirm" class="registerLabel">
</label></td>
<td><button id="registrationForm:registrationConfirm" name="registrationForm:registrationConfirm" class="ui-button ui-widget ui-state-default ui-corner-all ui-button-text-only registerButton" onclick="PrimeFaces.ab({source:'registrationForm:registrationConfirm',process:'registrationForm',update:'loginField content title registrationForm'});return false;" type="submit"><span class="ui-button-text">Зарегистрироваться</span></button><script id="registrationForm:registrationConfirm_s" type="text/javascript">PrimeFaces.cw('CommandButton','widget_registrationForm_registrationConfirm',{id:'registrationForm:registrationConfirm'});</script></td>
</tr>
</tbody>
</table>
<div id="registrationForm:j_idt46" class="ui-message-error ui-widget ui-corner-all"><span class="ui-message-error-icon"></span><span class="ui-message-error-detail">registrationForm:registrationLogin: Validation Error: Value is required.</span></div>
</form></div></span>]]></update><update id="javax.faces.ViewState"><![CDATA[-7975648054570174914:1199185624285089158]]></update><extension ln="primefaces" type="args">{"validationFailed":true}</extension><extension ln="primefaces" type="args">{"validationFailed":true}</extension></changes></partial-response>

P{3,}S。如果我们看一下这一行：

<extension ln="primefaces" type="args">{"validationFailed":true}</extension>
<extension ln="primefaces" type="args">{"validationFailed":true}</extension>

应该调用2次吗？是否是由于在我的部署中的某个地方，primefaces 库被引用了 2 次而导致的？

终于解决了！ 问题出在 primefaces .jar 文件的部署中。 我的 Web 应用程序在 Glassfish v3 上运行，并在 Eclipse 中开发。当我下载 primefaces jar 文件时，我将其放入 glassfish/lib 文件夹中。之后，我将此 jar 的副本放入 WEB-INF 中并像这样部署它。这是一个问题。 我不明白为什么，但在内部，脚本收到了来自两个 jar 的 2 个响应，并由于解析错误而停止工作。

结论：切勿将 primefaces.jar 的副本放入应用程序的 glassfish/lib 和 WEB-INF/lib 中。希望它可以帮助遇到同样问题的人。