JSF 实体转换错误：丰富的建议框转换错误，为'null Converter'设置值'*'

Question

我使用的是rich:suggestionbox

• 从建议框中选择建议
然后保存我的表单
• 它提出验证错误，说rich suggestionbox Conversion Error setting value '568-UNIMED-2005' for 'null Converter' .

我需要帮助

• 我的代码有什么问题?
• 如何解决这个问题?

这是我的LcInfo bean

@AutoCreate
@Scope(ScopeType.CONVERSATION)
@Name("lcInfo")
@Entity
@Table(name="lc_info")
public class LcInfo implements Serializable {
    private static final long serialVersionUID = 1L;
    private Integer id;
    private ItemIndentMast itemIndentMastBean;
    public LcInfo() {
    }

    @Id
    @GeneratedValue(strategy=GenerationType.AUTO)
    @Column(unique=true, nullable=false)
    public Integer getId() {
        return this.id;
    }
    public void setId(Integer id) {
        this.id = id;
    }
    //bi-directional many-to-one association to ItemIndentMast
    @ManyToOne
    @JoinColumn(name="item_indent_mast", nullable=false)
    public ItemIndentMast getItemIndentMastBean() {
        return this.itemIndentMastBean;
    }
    public void setItemIndentMastBean(ItemIndentMast itemIndentMastBean) {
        this.itemIndentMastBean = itemIndentMastBean;
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + id;
        return result;
    }
    @Override
    public boolean equals(Object object) {
        if (this == object) return true;
        if (object == null) return false;
        if (getClass() != object.getClass()) return false;
        LcInfo other = (LcInfo) object;
        return id.equals(other.id);
    }

}

这是我的XHTML源代码与丰富:建议框。

            <h:inputText value="#{lcInfo.itemIndentMastBean}" id="itemIndentMastBean" required="true"/>
            <rich:suggestionbox for="itemIndentMastBean"
                suggestionAction="#{lcInfoController.suggestion}"
                var="result" 
                fetchValue="#{result}"
                minChars="3"
                nothingLabel="No capitals found" >
                <f:facet name="header">
                    <h:outputText value="Select Indent Number" style="font-size: 10px; padding-left: 5px"/>
                </f:facet>
                <h:column>
                    <h:outputText value="#{result}" />
                </h:column>
            </rich:suggestionbox>                

下面是如何从控制器

加载建议的控制器代码

@Name("lcInfoController")
@Scope(ScopeType.CONVERSATION)
@AutoCreate
public class LcInfoController {

    public List<ItemIndentMast> suggestion(Object query) {
        String queryText = query.toString();
        if(StringUtils.isBlank(queryText) || queryText.length() < 3) {
            return Collections.emptyList();
        }
        return itemIndentMastService.filterIndent(queryText+"%");
    }
}

Answer 1

这是我最后想到的:Seam:创建一个自定义转换器

Answer 2

使输入接收一个字符串值而不是bean:把

value="#{lcInfo.itemIndentMastBean}",

  value="#{lcInfo.someString}",

JSF不知道如何处理ItemIndentMast BEAN。或者，您可以为该bean创建一个转换器(将字符串转换为bean)http://www.javabeat.net/tips/70-create-simple-custom-converter-implementation.html