JSF實體轉換錯誤：豐富suggestionbox轉換錯誤設定值「*」爲「空轉換器」

Question

我使用豐富：suggestionbox。

• 選擇從意見箱
• 的建議，然後保存我的形式
• 它提出了驗證錯誤說rich suggestionbox Conversion Error setting value '568-UNIMED-2005' for 'null Converter'。

我需要

• 什麼是錯我的代碼的幫助嗎？
• 如何解決這個問題？

這裏是我的LcInfo豆

@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); 
    } 


} 

這裏是我的XHTML源與豐富：suggestionbox。

  <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>     

這裏是控制器代碼是如何建議從控制器加載

@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

讓收到一個字符串值的輸入，而不是一個bean： 變化

value="#{lcInfo.itemIndentMastBean}", 

到

value="#{lcInfo.someString}", 

JSF不知道如何處理您的ItemIndentMast BEAN。 alternatevly您可以創建一個轉換器，該bean（字符串轉換爲豆） http://www.javabeat.net/tips/70-create-simple-custom-converter-implementation.html

Answer 2

這是我想出了在最後：Seam: Creating a custom converter