JSF 验证错误:值无效 [英] JSF Validation Error: Value is not valid

问题描述

我知道这似乎很常见，但我已经迷失了.在单击 Assessment.jsf 中的添加"按钮时发生.无论如何，我已经附上了我认为相关的部分.

I know this seems to be a common one, but I'm lost with it. Occurs on clicking the Add button in assessment.jsf. Anyway, I've attached what I think are the relevant sections.

FWIW，我调试时不会触发 AssessmentType.equals().

FWIW, AssessmentType.equals() isn't triggered when I debug.

提前致谢.

j_idt38:j_idt47:j_idt48: Validation Error: Value is not valid

评估.xhtml:

        <h:form>
            <h:selectOneMenu value="#{assessmentBean.assessmentField}">
                <f:selectItems value="#{assessmentBean.assessment.type.fields}" />
            </h:selectOneMenu>

            <h:commandButton value="Add" action="#{assessmentBean.doAddField}">
                <f:param name="assessmentId"
                    value="#{assessmentBean.assessment.id}" />
            </h:commandButton>
        </h:form>

评估.jsf:

<form id="j_idt38:j_idt47" name="j_idt38:j_idt47" method="post" action="/jsf-web/edit/assessment.jsf" enctype="application/x-www-form-urlencoded"> 
<input type="hidden" name="j_idt38:j_idt47" value="j_idt38:j_idt47" /> 
<select name="j_idt38:j_idt47:j_idt48" size="1">    <option value="1">Presenting Condition</option> 
    <option value="2">Problem Duration</option> 
</select> 
<script type="text/javascript" src="/jsf-web/javax.faces.resource/jsf.js.jsf?ln=javax.faces"></script>
<input type="submit" name="j_idt38:j_idt47:j_idt50" value="Add" onclick="mojarra.jsfcljs(document.getElementById('j_idt38:j_idt47'),{'j_idt38:j_idt47:j_idt50':'j_idt38:j_idt47:j_idt50','assessmentId':'1'},'');return false" /><input type="hidden" name="javax.faces.ViewState" id="javax.faces.ViewState" value="3431661972220941645:6952134510589038883" autocomplete="off" /> 
</form> 

评估类型.java:

import java.util.List;

import javax.persistence.CascadeType;
import javax.persistence.Entity;
import javax.persistence.FetchType;
import javax.persistence.GeneratedValue;
import javax.persistence.GenerationType;
import javax.persistence.Id;
import javax.persistence.OneToMany;
import javax.validation.constraints.NotNull;

import lombok.Data;

import org.hibernate.envers.Audited;

@Audited
@Data
@Entity
public class AssessmentType implements Comparable<AssessmentType> {

    @Id
    @GeneratedValue(strategy = GenerationType.IDENTITY)
    private Long id;

    @NotNull
    private String name;

    @OneToMany( fetch=FetchType.EAGER, cascade = {CascadeType.PERSIST, CascadeType.MERGE}, targetEntity=AssessmentField.class )
    private List<AssessmentField> fields;

    @Override
    public int compareTo(final AssessmentType o) {
        return getId().compareTo(o.getId());
    }

    @Override
    public String toString() {
        return getName();
    }
}

AssessmentFieldConverter.java

AssessmentFieldConverter.java

import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.convert.Converter;
import javax.faces.convert.FacesConverter;
import javax.naming.InitialContext;
import javax.naming.NamingException;

import com.htu.fizio.api.AssessmentFieldManager;
import com.htu.fizio.domain.AssessmentField;

@FacesConverter(forClass = AssessmentField.class)
public class AssessmentFieldConverter implements Converter {

    AssessmentFieldManager<AssessmentField> assessmentFieldManager;

    @SuppressWarnings({ "unchecked", "rawtypes" })
    @Override
    public Object getAsObject(FacesContext ctx, UIComponent component, String value) {
        try {
            final InitialContext ic = new InitialContext();

            assessmentFieldManager = (AssessmentFieldManager) ic.lookup("fizio/AssessmentFieldManagerImpl/local");

            return assessmentFieldManager.find(Long.valueOf(value));
        } catch (NamingException e) {
            e.printStackTrace();
        }

        return null;
    }

    @Override
    public String getAsString(FacesContext ctx, UIComponent component, Object value) {
        return String.valueOf(((AssessmentField) value).getId());
    }
}

AssessmentBean.java

AssessmentBean.java

    import java.util.List;

    import javax.annotation.PostConstruct;
    import javax.ejb.EJB;
    import javax.faces.bean.ManagedBean;
    import javax.faces.bean.ManagedProperty;
    import javax.faces.bean.SessionScoped;

    import lombok.Getter;
    import lombok.Setter;

    import com.htu.fizio.api.AssessmentManager;
    import com.htu.fizio.domain.Assessment;
    import com.htu.fizio.domain.AssessmentField;
    import com.htu.fizio.domain.AssessmentFieldValue;
    import com.htu.fizio.jsf.faces.FacesUtil;

...    

@PostConstruct
public void init() {
    if (FacesUtil.containsKey("assessmentId")) {
        final Long id = Long.parseLong(FacesUtil.get("assessmentId"));

        assessment = assessmentManager.find(id);
    } else {
        assessment = new Assessment();
    }
}

    public String doAddField() {
        final AssessmentFieldValue value = new AssessmentFieldValue();

        value.setField(assessmentField);
        value.setValue("");

        assessment.getFieldValues().add(value);

        assessmentManager.save(assessment);

        return "/edit/assessment";
    }

刚刚在调试时注意到这一点，它可能是可疑的吗?:

Just noticed this when debugging, is it a likely suspect?:

Daemon Thread [HandshakeCompletedNotify-Thread] (Suspended (exception ConcurrentModificationException)) 
    HashMap$EntryIterator(HashMap$HashIterator<E>).nextEntry() line: 793    
    HashMap$EntryIterator.next() line: 834  
    HashMap$EntryIterator.next() line: 832  
    SSLSocketImpl$NotifyHandshakeThread.run() line: 2214    

推荐答案

我想我已经解决了这个问题，至少，我已经转向下一个错误了！

I think I've resolved this, at least, I've moved on to the next error!

尽管发布了大量代码，但我没有发布包含多个嵌套表单标签的完整 xhtml.只有一种形式似乎允许传递assessmentId 参数，这反过来又允许AssessmentBean 正确填充评估类型的AssessmentFields 列表.

Despite posting reams of code I'd not posted the full xhtml in which there were multiple and nested form tags. Just the one form seems to allow passing the assessmentId parameter which in turn allows the AssessmentBean to then populate the List of AssessmentFields for the assessment type correctly.

感谢大家的帮助.

这篇关于JSF 验证错误:值无效的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！