命令按鈕不會觸發動作 - Primefaces和JSF

您好，我看了很多教程和帖子，但是y看不到問題。我有一個對話框，必須將數據保存到調用託管bean中的方法的數據庫中，但是當我調試該方法時不會觸發。我的網頁的代碼是：命令按鈕不會觸發動作 - Primefaces和JSF

<h:form> 
     <p:commandButton id="btnCreateCity" update=":formCreateCity" oncomplete="createCity.show()" 
         title="Crear nueva ciudad" value="Crear ciudad" icon="ui-icon-search"/> 
</h:form> 
<h:form id="formCreateCity"> 
     <p:dialog header="Crear ciudad" widgetVar="createCity" id="dlgCreateCity" 
        resizable="false" modal="true" showEffect="fade" hideEffect="explode"> 
      <!-- Alta de ciudades --> 
      <f:facet name="header"> 
      <h:outputLabel value="Agregar nueva ciudad"/> 
      </f:facet> 
      <p> 
       <h:outputLabel for="city" value="Nombre de la ciudad:"/> 
       <p:inputText id="city" value="#{locationController.cityName}"/> 
       <p:message for="city"/> 
      </p> 
      <p> 
       <h:outputLabel for="postCode" value="Código Postal:"/> 
       <p:inputText id="postCode" value="#{locationController.postCode}"/> 
       <p:message for="postCode"/> 
      </p> 
      <p> 
       <p:selectOneMenu id="countries" value="#{locationController.selectedCountry}" required="true"> 
        <f:selectItem itemLabel="Seleccionar uno" itemValue="" /> 
        <f:selectItems value="#{locationController.countries}" 
         var="country" 
         itemLabel="#{country.name}" 
         itemValue="#{country.idCountry}"/> 
       </p:selectOneMenu> 
      </p> 
      <f:facet name="footer"> 
       <p:commandButton value="Aceptar" 
           actionListener="#{locationController.saveCity}" 
           oncomplete="createCity.hide()" 
           icon="ui-icon-save"> 
        <p:ajax update=":mainForm"/> 
       </p:commandButton> 
       <p:commandButton value="Cancelar" oncomplete="createCity.hide()" 
           icon="ui-icon-cancel"/> 
      </f:facet> 
     </p:dialog> 
    </h:form>

而且我的方法在管理bean是：

public void saveCity(){ 
    cityService = new CityServiceImpl(); 
    boolean saved = cityService.save(cityName, postCode, selectedCountry); 
    if(saved){ 
     FacesContext context = FacesContext.getCurrentInstance(); 
     context.addMessage("mainForm", new FacesMessage(
       FacesMessage.SEVERITY_INFO, "Operación realizada", 
       "Se guardó la ciudad")); 
    }else{ 
     FacesContext context = FacesContext.getCurrentInstance(); 
     context.addMessage("mainForm", new FacesMessage(
       FacesMessage.SEVERITY_INFO, "Operación no realizada", 
       "No se pudo guardar la ciudad")); 
    } 

}

我試圖把javax.faces.event.ActionEvent的方法和nthing的參數。你能幫我嗎？

來源

2013-10-16 user1977204

你不需要添加一個'號碼：上的commandButton ajax'，而不是，你可以使用'update'屬性。 – Cold

嘗試使用這樣的：

<p:commandButton value="Aceptar" 
    action="#{locationController.saveCity}" 
    oncomplete="createCity.hide()" 
    icon="ui-icon-save" 
    update=":mainForm" 
/>

我找不到的MainForm在你發佈的代碼。如果在視圖中不存在mainForm，您將得到一個異常。如果您嘗試更新formCreateCity，則只需使用update="@form"。

下面是我用來測試它的代碼：

觀

<?xml version='1.0' encoding='UTF-8' ?> 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml" 
     xmlns:h="http://xmlns.jcp.org/jsf/html" 
     xmlns:p="http://primefaces.org/ui" 
     xmlns:f="http://xmlns.jcp.org/jsf/core"> 
    <h:head> 
     <title>Facelet Title</title> 
    </h:head> 
    <h:body> 
     <p:messages autoUpdate="true" showDetail="true" showSummary="true" /> 

     <h:form id="mainForm"> 

     </h:form> 
     <h:form> 
      <p:commandButton id="btnCreateCity" update=":formCreateCity" oncomplete="createCity.show()" 
          title="Crear nueva ciudad" value="Crear ciudad" icon="ui-icon-search"/> 
     </h:form> 
     <h:form id="formCreateCity"> 
      <p:dialog header="Crear ciudad" widgetVar="createCity" id="dlgCreateCity" 
         resizable="false" modal="true" showEffect="fade" hideEffect="explode"> 
       <!-- Alta de ciudades --> 
       <f:facet name="header"> 
        <h:outputLabel value="Agregar nueva ciudad"/> 
       </f:facet> 
       <p> 
        <h:outputLabel for="city" value="Nombre de la ciudad:"/> 
        <p:inputText id="city" value="#{locationController.cityName}"/> 
        <p:message for="city"/> 
       </p> 
       <p> 
        <h:outputLabel for="postCode" value="Código Postal:"/> 
        <p:inputText id="postCode" value="#{locationController.postCode}"/> 
        <p:message for="postCode"/> 
       </p> 
       <p> 
        <p:selectOneMenu id="countries" value="#{locationController.selectedCountry}" required="true"> 
         <f:selectItem itemLabel="Seleccionar uno" itemValue="" /> 
         <f:selectItems value="#{locationController.countries}" 
             var="country" 
             itemLabel="#{country.name}" 
             itemValue="#{country.idCountry}"/> 
        </p:selectOneMenu> 
       </p> 
       <f:facet name="footer"> 
        <p:commandButton value="Aceptar" 
            actionListener="#{locationController.saveCity}" 
            oncomplete="createCity.hide()" 
            icon="ui-icon-save" /> 
        <p:commandButton value="Cancelar" oncomplete="createCity.hide()" 
            icon="ui-icon-cancel"/> 
       </f:facet> 
      </p:dialog> 
     </h:form> 
    </h:body> 
</html>

實體

import java.util.Objects; 

/** 
* 
* @author DIRGTI 
*/ 
public class Country { 

    private Long idCountry; 
    private String name; 

    public Country(){ 

    } 

    public Country(Long idCountry, String name) { 
     this.idCountry = idCountry; 
     this.name = name; 
    } 

    public Long getIdCountry() { 
     return idCountry; 
    } 

    public void setIdCountry(Long idCountry) { 
     this.idCountry = idCountry; 
    } 

    public String getName() { 
     return name; 
    } 

    public void setName(String name) { 
     this.name = name; 
    } 

    @Override 
    public int hashCode() { 
     int hash = 7; 
     hash = 89 * hash + Objects.hashCode(this.idCountry); 
     return hash; 
    } 

    @Override 
    public boolean equals(Object obj) { 
     if (obj == null) { 
      return false; 
     } 
     if (getClass() != obj.getClass()) { 
      return false; 
     } 
     final Country other = (Country) obj; 
     if (!Objects.equals(this.idCountry, other.idCountry)) { 
      return false; 
     } 
     return true; 
    } 
}

轉換器

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

/** 
* 
* @author DIRGTI 
*/ 
@FacesConverter(forClass = Country.class) 
public class CountryConverter implements Converter { 

    @Override 
    public Object getAsObject(FacesContext context, UIComponent component, String value) { 
     return new Country(1L, "Brasil"); 
    } 

    @Override 
    public String getAsString(FacesContext context, UIComponent component, Object value) { 
     if (value == null) { 
      return null; 
     } 
     return ((Country) value).getIdCountry().toString(); 
    } 
}

管理bean

import java.io.Serializable; 
import java.util.ArrayList; 
import java.util.List; 
import javax.annotation.PostConstruct; 
import javax.faces.view.ViewScoped; 
import javax.inject.Named; 

/** 
* 
* @author DIRGTI 
*/ 
@Named 
@ViewScoped 
public class LocationController implements Serializable { 

    private String cityName; 
    private String postCode; 
    private String selectedCountry; 
    private List<Country> countries; 

    @PostConstruct 
    public void setup() { 
     countries = new ArrayList<>(); 
     countries.add(new Country(1L, "Brazil")); 
     countries.add(new Country(2L, "Peru")); 
    } 

    public void saveCity() { 
     System.out.println("Action triggered"); 
    } 

    public String getCityName() { 
     return cityName; 
    } 

    public void setCityName(String cityName) { 
     this.cityName = cityName; 
    } 

    public String getPostCode() { 
     return postCode; 
    } 

    public void setPostCode(String postCode) { 
     this.postCode = postCode; 
    } 

    public String getSelectedCountry() { 
     return selectedCountry; 
    } 

    public void setSelectedCountry(String selectedCountry) { 
     this.selectedCountry = selectedCountry; 
    } 

    public List<Country> getCountries() { 
     return countries; 
    } 

    public void setCountries(List<Country> countries) { 
     this.countries = countries; 
    } 
}

來源

2013-10-16 17:13:01

我的mainForm是頁面中的另一個表格，它有一個表格。 – user1977204

我把但沒有變化！ – user1977204

確保您在提交表單時沒有發生任何驗證問題。你在視圖中是否有？ –

添加過程= 「@這個」帶命令按鈕

<p:commandButton value="Aceptar" process="@this" 
          actionListener="#{locationController.saveCity}" 
          oncomplete="createCity.hide()" 
          icon="ui-icon-save">

來源

2013-10-17 05:48:58 Pushkar

請解釋一下... – Cold

命令按鈕不會觸發動作 - Primefaces和JSF

回答

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