itemLabel =「＃{} client2.nomClient」：房產「nomClient」在java.lang.String類型未發現

Question

我會檢索selectOneMenu用於的選擇值，但是當我執行程序此異常出現：

Etat HTTP 500 - /pages/T.xhtml @59,33 itemLabel="#{client2.nomClient}": Property 'nomClient' not found on type java.lang.String 

這是我的看法：

<p:selectOneMenu value="#{ticketBean.maValeur}" 
          style="width:210px; height:20px; font-size:10px; font-weight:1px;" 
          required="true" requiredMessage="REQUIRED"> 
          <f:selectItem itemLabel="Select Client" itemValue=""/> 
          <f:selectItems value="#{ticketBean.getMesElementsTest()}" var="client2" itemLabel="#{client2.nomClient}" itemValue="#{client2.nomClient}" 
           style="font-size:10px;"> 
          </f:selectItems> 

這是我班的客戶：

package com.model; 

public class Client { 
    private int idClient; 
    private String nomClient; 
    private String adresseClient; 
    private String telephoneClient; 
    private String mailClient; 

// GETTERS && SETTERS 
} 

這是我fonction getMe sElementsTest：

private static Map<String, Object> mesElementsTest; 
    private static ClientDaoImp clientDaoImp= new ClientDaoImp(); 
    public static Map<String, Object> getMesElementsTest() { 
     mesElementsClient = new LinkedHashMap<String, Object>(); 
     List<Client> clientlist = clientDaoImp.getAllClients(); 
     Iterator<Client> i = clientlist.iterator(); 
     while(i.hasNext()){ 
      Client client=i.next(); 
      mesElementsClient.put(client.getNomClient(),client.getNomClient()); 

     }  
     return mesElementsClient; 
    } 

Answer 1

您只能使用List，並有這樣的事情：

... 
public static List<Client> getMesElementsTest() { 
     return clientDaoImp.getAllClients();  
     } 
... 

頁：

...  
<p:selectOneMenu value="#{ticketBean.maValeur}" style="..." required="true" requiredMessage="..."> 
     <f:selectItem itemLabel="Select Client" itemValue=""/> 
     <f:selectItems value="#{ticketBean.getMesElementsTest()}" var="client2" itemLabel="#{client2.nomClient}" itemValue="#{client2.nomClient}" style="..."> 
    </f:selectItems> 
... 

而且，這種形式更高效，東陽你不需要填寫其他數據結構。

希望它有幫助