Prettyfacesとコンバータの使い方は？

Question

私はprettyface 3.3.2とJSF 2.2.1を使用しています。私はエンティティオブジェクトにかなりのURLの文字列を変換し、Webページでオブジェクトを使用したい。かなり-config.xmlに：

<url-mapping id="country"> 
    <pattern value="/country/#{countryBean.selectedCountry}"> 
     <convert param="#{countryBean.selectedCountry}" converterId="countryConverter" converterClass="Test.CountryBean" /> 
    </pattern> 
    <view-id value="/faces/countries/country.xhtml" /> 
</url-mapping> 

country.xhtml：

<f:metadata> 
    <f:viewParam name="country" value="#{countryBean.selectedCountry}"> 
     <f:converter converterId="countryConverter" /> 
    </f:viewParam> 
</f:metadata> 
<ui:define name="content"> 
    #{countryBean.selectedCountry.country} 
</ui:define> 

CountryConverter：

public static EntityCountry country = new EntityCountry(); 

EntityManagerFactory emf = Persistence.createEntityManagerFactory("testPU"); 

public EntityCountry getAsObject(FacesContext context, UIComponent component, String value) { 
    EntityManager em = emf.createEntityManager(); 

    Query query = em.createQuery("SELECT c FROM EntityCountry c WHERE c.url = :countryUrl") 
      .setParameter("countryUrl", value); 
    country = (EntityCountry) query.getSingleResult(); 
    return country; 
} 

public String getAsString(FacesContext context, UIComponent component, Object value) { 
    EntityCountry c = (EntityCountry) value; 
    return c.getUrl(); 
} 

私はgetAsObjectメソッドにブレークポイントを切り替えますが、それはブレークポイントにヒットしません。 -config.xmlが直面している：

<converter> 
    <converter-id>countryConverter</converter-id> 
    <converter-class>Test.CountryConverter</converter-class> 
</converter> 
<managed-bean> 
    <managed-bean-name>countryBean</managed-bean-name> 
    <managed-bean-class>Test.CountryBean</managed-bean-class> 
    <managed-bean-scope>session</managed-bean-scope> 
</managed-bean> 

CountryBean：

@Named("countryBean") 
@SessionScoped 
public class CountryBean implements Serializable { 
    private EntityCountry selectedCountry; 

    public EntityCountry getSelectedCountry() { return selectedCountry; } 
    public void setSelectedCountry(EntityCountry newValue) { selectedCountry = newValue; } 
} 

とエラー：

PrettyFaces: Exception occurred while processing <country:#{countryBean.selectedCountry}> for URL </country/turkiye> 
- Stack Trace 
com.ocpsoft.pretty.PrettyException: PrettyFaces: Exception occurred while processing <country:#{countryBean.selectedCountry}> for URL 

</country/turkiye> 
    at com.ocpsoft.pretty.faces.beans.ParameterInjector.injectPathParams(ParameterInjector.java:96) 
    at com.ocpsoft.pretty.faces.beans.ParameterInjector.injectParameters(ParameterInjector.java:54) 
    at com.ocpsoft.pretty.faces.event.PrettyPhaseListener.afterPhase(PrettyPhaseListener.java:98) 
    at com.sun.faces.lifecycle.Phase.handleAfterPhase(Phase.java:189) 
    at com.sun.faces.lifecycle.Phase.doPhase(Phase.java:107) 
    at com.sun.faces.lifecycle.RestoreViewPhase.doPhase(RestoreViewPhase.java:116) 
    at com.sun.faces.lifecycle.LifecycleImpl.execute(LifecycleImpl.java:118) 
    at javax.faces.webapp.FacesServlet.service(FacesServlet.java:593) 
    at org.apache.catalina.core.StandardWrapper.service(StandardWrapper.java:1539) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:343) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217) 
    at com.ocpsoft.pretty.PrettyFilter.doFilter(PrettyFilter.java:118) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217) 
    at org.apache.catalina.core.ApplicationDispatcher.doInvoke(ApplicationDispatcher.java:785) 
    at org.apache.catalina.core.ApplicationDispatcher.invoke(ApplicationDispatcher.java:649) 
    at org.apache.catalina.core.ApplicationDispatcher.processRequest(ApplicationDispatcher.java:483) 
    at org.apache.catalina.core.ApplicationDispatcher.doDispatch(ApplicationDispatcher.java:454) 
    at org.apache.catalina.core.ApplicationDispatcher.dispatch(ApplicationDispatcher.java:350) 
    at org.apache.catalina.core.ApplicationDispatcher.forward(ApplicationDispatcher.java:300) 
    at com.ocpsoft.pretty.PrettyFilter.doFilter(PrettyFilter.java:110) 
    at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:256) 
    at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:217) 
    at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:279) 
    at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) 
    at org.apache.catalina.core.StandardPipeline.doInvoke(StandardPipeline.java:655) 
    at org.apache.catalina.core.StandardPipeline.invoke(StandardPipeline.java:595) 
    at com.sun.enterprise.web.WebPipeline.invoke(WebPipeline.java:98) 
    at com.sun.enterprise.web.PESessionLockingStandardPipeline.invoke(PESessionLockingStandardPipeline.java:91) 
    at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:162) 
    at org.apache.catalina.connector.CoyoteAdapter.doService(CoyoteAdapter.java:330) 
    at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:231) 
    at com.sun.enterprise.v3.services.impl.ContainerMapper.service(ContainerMapper.java:174) 
    at com.sun.grizzly.http.ProcessorTask.invokeAdapter(ProcessorTask.java:828) 
    at com.sun.grizzly.http.ProcessorTask.doProcess(ProcessorTask.java:725) 
    at com.sun.grizzly.http.ProcessorTask.process(ProcessorTask.java:1019) 
    at com.sun.grizzly.http.DefaultProtocolFilter.execute(DefaultProtocolFilter.java:225) 
    at com.sun.grizzly.DefaultProtocolChain.executeProtocolFilter(DefaultProtocolChain.java:137) 
    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:104) 
    at com.sun.grizzly.DefaultProtocolChain.execute(DefaultProtocolChain.java:90) 
    at com.sun.grizzly.http.HttpProtocolChain.execute(HttpProtocolChain.java:79) 
    at com.sun.grizzly.ProtocolChainContextTask.doCall(ProtocolChainContextTask.java:54) 
    at com.sun.grizzly.SelectionKeyContextTask.call(SelectionKeyContextTask.java:59) 
    at com.sun.grizzly.ContextTask.run(ContextTask.java:71) 
    at com.sun.grizzly.util.AbstractThreadPool$Worker.doWork(AbstractThreadPool.java:532) 
    at com.sun.grizzly.util.AbstractThreadPool$Worker.run(AbstractThreadPool.java:513) 
    at java.lang.Thread.run(Thread.java:722) 
Caused by: javax.el.ELException: java.lang.IllegalArgumentException: Cannot convert turkiye of type class 

java.lang.String to class Test.EntityCountry 
    at com.sun.el.ExpressionFactoryImpl.coerceToType(ExpressionFactoryImpl.java:68) 
    at org.jboss.weld.util.el.ForwardingExpressionFactory.coerceToType(ForwardingExpressionFactory.java:37) 
    at com.ocpsoft.pretty.faces.util.FacesElUtils.setValue(FacesElUtils.java:86) 
    at com.ocpsoft.pretty.faces.beans.ParameterInjector.injectPathParams(ParameterInjector.java:90) 
    ... 46 more 
Caused by: java.lang.IllegalArgumentException: Cannot convert turkiye of type class java.lang.String to 

class Test.EntityCountry 
    at com.sun.el.lang.ELSupport.coerceToType(ELSupport.java:397) 
    at com.sun.el.ExpressionFactoryImpl.coerceToType(ExpressionFactoryImpl.java:66) 
    ... 49 more 

Answer 1

をあなたはPrettyFaces注入とViewParamsの両方を使用しているように見えます。あなたがViewParamsを使用している場合、あなたはこのようなPrettyFacesから代わりにパラメータ注射の名前付きパラメータ、使用する必要があります。

<url-mapping id="country"> 
    <pattern value="/country/#{country}" /> 
    <view-id value="/faces/countries/country.xhtml" /> 
</url-mapping> 

を次に、JSFは、あなたがそうすることを求めていると値を変換する作業をやらせることができます。