Question

我也在尝试获取在枚举“CityCodes.java”中定义的城市代码，这是我的枚举类，我的定义如下：

public enum Cities {

AL("Alabama","1"),
AK("Alaska","2"),
        .......
WY("Wyoming","51");

  ---------------------------------------------------   
  ******** My managed bean definition*************
  ---------------------------------------------------

public class CityCodes {                                    
     public Cities[] getCityCodes(){
     return Cities.values();
}

我在config.faces.xml

中定义了相同的内容

<managed-bean>
<managed-bean-name>cityCodes</managed-bean-name>
<managed-bean-class>com.web.form.CityCodes</managed-bean-class>
<managed-bean-scope>session</managed-bean-scope>
</managed-bean>

在我的UI中调用相同内容时，我的代码如下所示

<h:outputText value="#{msg.stateName}" />
<p:selectOneMenu value="#{addressForm.stateCode}">
  <f:selectItems itemLabel="#{cityCodes.getCityCodes}" />
</p:selectOneMenu>

当我运行构建并部署应用程序时....我没有收到任何错误，我也没有得到填写状态代码的下拉列表。

Answer 1

试试这个......

在你的xhtml中：

<p:selectOneRadio id="myRadio" value="#{myBean.selectedState}">
   <f:selectItems value="#{myBean.statesToPick}"/>
</p:selectOneRadio>

在你的bean中：

public stateToPick selectedState;

public enum stateToPick {
STATE_1 ("S1"), STATE_2 ("S2"), STATE_3 ("S3"), STATE_4 ("S4"), STATE_5 ("S5");
private String value;
private stateToPick (String value) { this.value = value;}
}
public stateToPick statesToPick[] = stateToPick.values();

Answer 2

我用jsf 2尝试了这个。

在xhtml中：

select state:
<p:selectOneMenu value="#{enumSelect.selectedCode}">
    <f:selectItem itemLabel="Select State" />
    <f:selectItems var="state" value="#{enumSelect.stateCodes}"
                    itemValue="#{state}" itemLabel="#{state.name()} - #{state.cityCode}" />
</p:selectOneMenu>

在豆子里：

public enum StateCode {

    ISTANBUL(34) , 
    ANKARA(6),
    IZMIR(35);

    private int cityCode = 0;

    private StateCode(int cityCode) {
        this.cityCode = cityCode;
    }

    public int getCityCode(){
        return cityCode;
    }
}

@ManagedBean(name="enumSelect")
public class EnumSelectOneMenu {

    private StateCode selectedCode;

    public StateCode[] getStateCodes(){
        return StateCode.values();
    }

    public StateCode getSelectedCode() {
        return selectedCode;
    }

    public void setSelectedCode(StateCode selectedCode) {
        this.selectedCode = selectedCode;
    }
}

枚举为Primefaces中的下拉列表

2 个答案: