FreeMarker template-Fehler! in struts2

Ich bin mit sturts 2 annotation-basierte Validierungen in meiner Klasse, während dispalying action-Fehler ich habe dieses seltsame "FreeMarker template-Fehler!" Dies ist meine entity-Klasse.

@Entity
public class User implements Serializable {

    private static final long serialVersionUID = 1L;

    @Id
    @GeneratedValue(strategy = GenerationType.AUTO)
    private Long userid;
    private String userPhoneNumber;
    private String userName;
    private String password;
    private String full_name;
    private String useremail;

    @OneToOne
    private userType usertypeid;

    public Long getUserid() {
        return userid;
    }

    public void setUserid(Long userid) {
        this.userid = userid;
    }

    public String getUserPhoneNumber() {
        return userPhoneNumber;
    }

    @RequiredStringValidator(message = "Enter Phone Number",type = ValidatorType.FIELD)
    public void setUserPhoneNumber(String userPhoneNumber) {
        this.userPhoneNumber = userPhoneNumber;
    }

    public String getUserName() {
        return userName;
    }

    @RequiredStringValidator(message = "Enter User Name",type = ValidatorType.FIELD)
    public void setUserName(String userName) {
        this.userName = userName;
    }

    public String getPassword() {
        return password;
    }

    @RequiredStringValidator(message = "Enter Password",type = ValidatorType.FIELD)
    public void setPassword(String password) {
        this.password = password;
    }

    public String getFull_name() {
        return full_name;
    }

    @RequiredStringValidator(message = "Enter Full Name",type = ValidatorType.FIELD)
    public void setFull_name(String full_name) {
        this.full_name = full_name;
    }

    public String getUseremail() {
        return useremail;
    }

    @RequiredStringValidator(message = "Enter Email Id",type = ValidatorType.FIELD)
    @EmailValidator(message = "Enter Valid Email Id",type = ValidatorType.FIELD)
    public void setUseremail(String useremail) {
        this.useremail = useremail;
    }

    public userType getUsertypeid() {
        return usertypeid;
    }

    public void setUsertypeid(userType usertypeid) {
        this.usertypeid = usertypeid;
    }

}

Dies ist mein Struts.xml Datei Aktion code

<action name="saveorupdate" class="com.elegant.purchasemodule.purchasemasters.user.UserAction"
            method="saveOrUpdate">
    <interceptor-ref name="defaultStackHibernateStrutsValidation"/>
    <result name="input">/AddUser.jsp</result>
    <result name="success" type="redirect">userlist</result>
</action>

Dies ist meine jsp-Seite

<s:form  action="saveorupdate" method="post" cssClass="form-horizontal"  theme="simple" >
    <s:push value="u">
        <s:hidden name="userid" id="userid"></s:hidden>
            <fieldset>
                <legend>User</legend>
                <div class="form-group">
                    <label class="col-md-3 control-label" for="textinput">User Name</label>  
                    <div class="col-md-3">
                    <s:textfield id="userName" name="userName" cssClass="form-control input-md"></s:textfield>
                        <div id="userNameError" style="color: red"></div>
                    <s:fielderror fieldName="userName" cssClass="alert-danger"/>
                </div>
            </div> 

            <div class="form-group">
                <label class="col-md-3 control-label" for="textinput">Full Name</label>  
                <div class="col-md-3">
                    <s:textfield id="full_name" name="full_name" cssClass="form-control input-md" ></s:textfield>
                    <div id="full_nameError" style="color: red"></div>
                    <s:fielderror fieldName="full_name" cssClass="alert-danger"/>
                </div>
            </div> 
            <div class="form-group">
                <label class="col-md-3 control-label" for="textinput">Contact No</label>  
                <div class="col-md-3">
                    <s:textfield id="userPhoneNumber" name="userPhoneNumber" cssClass="form-control input-md"></s:textfield>
                    <div id="contactNoError" style="color: red"></div>
                    <s:fielderror fieldName="userPhoneNumber" cssClass="alert-danger"/>
                </div>
            </div> 
            <div class="form-group">
                <label class="col-md-3 control-label" for="textinput">Email Id</label>  
                <div class="col-md-3">
                    <s:textfield id="useremail" name="useremail" cssClass="form-control input-md" ></s:textfield>
                    <div id="emailIdError" style="color: red"></div>
                    <s:fielderror fieldName="useremail" cssClass="alert-danger"/>
                </div>
            </div> 
            <div class="form-group">
                <label class="col-md-3 control-label" for="textinput">Password</label>  
                <div class="col-md-3">
                    <s:password id="password" name="password" cssClass="form-control"/>
                    <div id="passwordError" style="color: red"></div>
                    <s:fielderror fieldName="password" cssClass="alert-danger"/>
                </div>
            </div>    
            <div class="form-group">
                <label class="col-md-3 control-label" for="selectbasic">User Type</label>
                <div class="col-md-3">
                    <s:select id="UserType"
                              label="UserType" 
                              headerKey="-1" headerValue="Select Status"
                              list="usertylist"
                              listValue="usertypename"
                              listKey="usertypeid"
                              cssClass='form-control input-md'
                              name="usertypeid.usertypeid"/>
                </div>
                <div id="UserTypeError" style="color: red"></div>
            </div>  
            <div class="form-group">
                <label class="col-md-4 control-label" for="singlebutton">&nbsp;</label>
                <div class="col-md-4">
                    <button id="save" type="submit"  name="save" class="btn btn-primary">Save</button>&nbsp;
                    <button type="reset" value="reset" class="btn btn-primary">Reset</button>
                    <button type="button" onclick="window.location.href = 'userlist'" class="btn btn-primary ">Cancel</button>&nbsp;

                </div>
            </div>
        </fieldset>
    </s:push>
</s:form>

Nach dem Absenden des Formulars zeigen diesen Fehler auch wenn ich es gebe gültigen Angaben

 org.apache.jasper.JasperException: Expression eKey is undefined on line 32, column 23 in template/simple/fielderror.ftl. - Class: freemarker.core.TemplateObject
File: TemplateObject.java
Method: assertNonNull
Line: 125 - freemarker/core/TemplateObject.java:125:-1
at org.apache.jasper.servlet.JspServletWrapper.handleJspException(JspServletWrapper.java:570)
at org.apache.jasper.servlet.JspServletWrapper.service(JspServletWrapper.java:457)
at org.apache.jasper.servlet.JspServlet.serviceJspFile(JspServlet.java:391)
at org.apache.jasper.servlet.JspServlet.service(JspServlet.java:334)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:728)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:305)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:749)
at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:487)
at org.apache.catalina.core.ApplicationDispatcher.doForward(ApplicationDispatcher.java:412)
at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:339)
at org.apache.struts2.dispatcher.ServletDispatcherResult.doExecute(ServletDispatcherResult.java:164)
at org.apache.struts2.dispatcher.StrutsResultSupport.execute(StrutsResultSupport.java:186)
at com.opensymphony.xwork2.DefaultActionInvocation.executeResult(DefaultActionInvocation.java:371)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:275)
at com.opensymphony.xwork2.validator.ValidationInterceptor.doIntercept(ValidationInterceptor.java:265)
at org.apache.struts2.interceptor.validation.AnnotationValidationInterceptor.doIntercept    (AnnotationValidationInterceptor.java:68)
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.ConversionErrorInterceptor.intercept(ConversionErrorInterceptor.java:138)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:249)
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.ParametersInterceptor.doIntercept(ParametersInterceptor.java:249)
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.StaticParametersInterceptor.intercept(StaticParametersInterceptor.java:191)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at org.apache.struts2.interceptor.MultiselectInterceptor.intercept(MultiselectInterceptor.java:73)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at org.apache.struts2.interceptor.CheckboxInterceptor.intercept(CheckboxInterceptor.java:91)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at org.apache.struts2.interceptor.FileUploadInterceptor.intercept(FileUploadInterceptor.java:252)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.ModelDrivenInterceptor.intercept(ModelDrivenInterceptor.java:100)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.ScopedModelDrivenInterceptor.intercept   (ScopedModelDrivenInterceptor.java:141)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.ChainingInterceptor.intercept(ChainingInterceptor.java:145)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.PrepareInterceptor.doIntercept(PrepareInterceptor.java:171)
at com.opensymphony.xwork2.interceptor.MethodFilterInterceptor.intercept(MethodFilterInterceptor.java:98)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.I18nInterceptor.intercept(I18nInterceptor.java:139)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at org.apache.struts2.interceptor.ServletConfigInterceptor.intercept(ServletConfigInterceptor.java:164)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.AliasInterceptor.intercept(AliasInterceptor.java:193)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.opensymphony.xwork2.interceptor.ExceptionMappingInterceptor.intercept(ExceptionMappingInterceptor.java:189)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at com.googlecode.s2hibernate.struts2.plugin.interceptors.SessionTransactionInjectorInterceptor.intercept   (SessionTransactionInjectorInterceptor.java:157)
at com.opensymphony.xwork2.DefaultActionInvocation.invoke(DefaultActionInvocation.java:246)
at org.apache.struts2.impl.StrutsActionProxy.execute(StrutsActionProxy.java:54)
at org.apache.struts2.dispatcher.Dispatcher.serviceAction(Dispatcher.java:562)
at org.apache.struts2.dispatcher.ng.ExecuteOperations.executeAction(ExecuteOperations.java:77)
at org.apache.struts2.dispatcher.ng.filter.StrutsPrepareAndExecuteFilter.doFilter   (StrutsPrepareAndExecuteFilter.java:99)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.displaytag.filter.ResponseOverrideFilter.doFilter(ResponseOverrideFilter.java:125)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:243)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:210)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:222)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:123)
at org.apache.catalina.authenticator.AuthenticatorBase.invoke(AuthenticatorBase.java:502)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:171)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:99)
at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:953)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:408)
at org.apache.coyote.http11.AbstractHttp11Processor.process(AbstractHttp11Processor.java:1023)
at org.apache.coyote.AbstractProtocol$AbstractConnectionHandler.process(AbstractProtocol.java:589)
at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:312)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1145)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:615)
at java.lang.Thread.run(Thread.java:745)

InformationsquelleAutor developer uday | 2014-12-31

4

Die Ausnahme ist, sagen Ihnen genau, wo der Fehler:

org.apache.jasper.JasperException: Ausdruck E-Key ist nicht definiert in Zeile 32, Spalte 23 in template/simple/fielderror.ftl. - Klasse: freemarker.core.TemplateObject

Der Täter ist ein fieldError mit einem unmatching fieldName. Nach den tests (in den Kommentaren) es stellte sich heraus, dass full_name, appearently der Unterstrich ist nicht ordnungsgemäß behandelt durch die ganze Kette:
```
<s:textfield id="full_name" name="full_name" ... />
...
<s:fielderror fieldName="full_name" cssClass="alert-danger"/>
```
full_name sollte dann geändert werden, um fullName so lange mit den Variablen und deren Getter und Setter, um zu arbeiten:
```
<s:fielderror fieldName="fullName" cssClass="alert-danger"/>
```
Auch stellen Sie sicher, um die neuesten und ausgerichtet struts-Bibliotheken und-plugins, ist mit der richtigen version von externen Abhängigkeiten (Hibernate validator, etc.)

Sagte, ich möchte Ihnen ein paar Tipps zur Benennung von Variablen:
1. Immer verwenden camelCase für Variablen, die aus mehreren Wörtern: password ist password (ein einzelnes Wort, obwohl zusammengesetzten), sondern username und useremail sollte userName und userEmail. Sie haben 3 verschiedene Konventionen für die 6 Variablen, die von einer einzelnen Klasse...
2. Da sind die Variablen der User Klasse , vermeiden die redundante user im Variablen-Namen: Benutzer-id = id, username = name, userPhoneNumber = phoneNumber, etc...
  Wenn du das getan hast für mehr Lesbarkeit in die JSP, dann nur vermeiden, mit den <s:push> tag, das könnte verwirren.
Wenn Sie beginnen, die änderung der Datenbank-Spalte-Namen sollten keine Schmerzen... ansonsten bewahren Sie diese Hinweise für Ihr Nächstes Projekt.

P. S: beachten Sie, dass mit JPA und Hibernate können Sie verwenden camelCase Variablen und Unterstrich Spaltennamen (phoneNumber in Entity, phone_number in der Datenbank) automatisch mit dieser Einstellung in persistence.xml:
```
<property name="hibernate.ejb.naming_strategy"
         value="org.hibernate.cfg.ImprovedNamingStrategy" />
```
- Versuchen Sie entfernen der einen von full_name und sehen, ob es der Schuldige ist. Ich lief aus Ideen, wenn Sie einem anderen KRIEG, bei dem es funktioniert, prüfen Sie sorgfältig jeden Unterschied in der Konfiguration, Bibliotheken, Anmerkungen, jsp...
- Gott sei Dank endlich gelöst.Der Täter ist full_name.Nur entfernt man die Validierung für diese variable.Ich weiß nicht, warum und Unterstrich, verursacht ein großes problem.Das u so viel für Ihre kontinuierliche Hilfe und für Ihre Geduld im Zuhören von meinen amateur-Worte .
- Vielen Dank für Ihre große Hilfe.
InformationsquelleAutor Andrea Ligios

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