Vraptor, como formatar datas em um json?

Lucas_Cavalcanti · Julho 5, 2011, 6:08pm

mas o converter está sendo executado?
coloque um breakpoint no método toString(Object)

psico.indie · Julho 6, 2011, 12:02pm

É estranho, eu sei. Mas está sendo executado sim. Já verifiquei.
Coloquei a versão do projeto aqui: https://github.com/rafaelreuber/drover-vraptor
Se você puder me ajudar, ficarei muito agradecido.

Lucas_Cavalcanti · Julho 6, 2011, 2:09pm

vc ainda está usando new DateConverter… é pra usar o SingleValueConverter que eu passei acima

psico.indie · Julho 6, 2011, 4:02pm

Eu coloquei como você disse. Tá daquele jeito pq eu esqueci de commitar.

Lucas_Cavalcanti · Julho 6, 2011, 4:58pm

no toString(Object), coloque um throw new RuntimeException()… acho que não está passando por lá, senão estaria funcionando

psico.indie · Julho 7, 2011, 7:33am

GRAVE: Servlet.service() for servlet [default] in context with path [/drover] threw exception
br.com.caelum.vraptor.InterceptionException: exception raised, check root cause for details: java.lang.RuntimeException
	at br.com.caelum.vraptor.interceptor.ExecuteMethodInterceptor.intercept(ExecuteMethodInterceptor.java:96)
	at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
	at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)
	at br.com.caelum.vraptor.core.LazyInterceptorHandler.execute(LazyInterceptorHandler.java:61)
	at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)
	at br.com.caelum.vraptor.core.LazyInterceptorHandler.execute(LazyInterceptorHandler.java:61)
	at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)
	at br.com.caelum.vraptor.interceptor.InstantiateInterceptor.intercept(InstantiateInterceptor.java:48)
	at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
	at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)
	at br.com.caelum.vraptor.interceptor.ExceptionHandlerInterceptor.intercept(ExceptionHandlerInterceptor.java:71)
	at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
	at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)
	at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:56)
	at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)
	at br.com.caelum.vraptor.interceptor.FlashInterceptor.intercept(FlashInterceptor.java:83)
	at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
	at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)
	at br.com.caelum.vraptor.interceptor.ResourceLookupInterceptor.intercept(ResourceLookupInterceptor.java:69)
	at br.com.caelum.vraptor.core.ToInstantiateInterceptorHandler.execute(ToInstantiateInterceptorHandler.java:54)
	at br.com.caelum.vraptor.core.DefaultInterceptorStack.next(DefaultInterceptorStack.java:54)
	at br.com.caelum.vraptor.core.EnhancedRequestExecution.execute(EnhancedRequestExecution.java:23)
	at br.com.caelum.vraptor.VRaptor$1.insideRequest(VRaptor.java:92)
	at br.com.caelum.vraptor.ioc.spring.SpringProvider.provideForRequest(SpringProvider.java:58)
	at br.com.caelum.vraptor.VRaptor.doFilter(VRaptor.java:89)
	at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:242)
	at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:208)
	at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:240)
	at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:203)
	at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:164)
	at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:108)
	at org.apache.catalina.valves.AccessLogValve.invoke(AccessLogValve.java:558)
	at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:118)
	at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:379)
	at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:242)
	at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:259)
	at org.apache.tomcat.util.net.JIoEndpoint$SocketProcessor.run(JIoEndpoint.java:281)
	at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(Unknown Source)
	at java.util.concurrent.ThreadPoolExecutor$Worker.run(Unknown Source)
	at java.lang.Thread.run(Unknown Source)
Caused by: java.lang.RuntimeException
	at br.com.drover.util.CustomJSONSerialization$1.toString(CustomJSONSerialization.java:33)
	at com.thoughtworks.xstream.converters.SingleValueConverterWrapper.toString(SingleValueConverterWrapper.java:37)
	at com.thoughtworks.xstream.converters.SingleValueConverterWrapper.marshal(SingleValueConverterWrapper.java:45)
	at com.thoughtworks.xstream.core.TreeMarshaller.convert(TreeMarshaller.java:86)
	at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78)
	at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.marshallField(AbstractReflectionConverter.java:157)
	at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter$2.writeField(AbstractReflectionConverter.java:148)
	at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter$2.visit(AbstractReflectionConverter.java:118)
	at com.thoughtworks.xstream.converters.reflection.PureJavaReflectionProvider.visitSerializableFields(PureJavaReflectionProvider.java:129)
	at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.doMarshal(AbstractReflectionConverter.java:100)
	at com.thoughtworks.xstream.converters.reflection.AbstractReflectionConverter.marshal(AbstractReflectionConverter.java:58)
	at com.thoughtworks.xstream.core.TreeMarshaller.convert(TreeMarshaller.java:86)
	at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78)
	at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63)
	at com.thoughtworks.xstream.converters.collections.AbstractCollectionConverter.writeItem(AbstractCollectionConverter.java:64)
	at com.thoughtworks.xstream.converters.collections.CollectionConverter.marshal(CollectionConverter.java:55)
	at com.thoughtworks.xstream.core.TreeMarshaller.convert(TreeMarshaller.java:86)
	at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:78)
	at com.thoughtworks.xstream.core.TreeMarshaller.convertAnother(TreeMarshaller.java:63)
	at com.thoughtworks.xstream.core.TreeMarshaller.start(TreeMarshaller.java:98)
	at com.thoughtworks.xstream.core.AbstractTreeMarshallingStrategy.marshal(AbstractTreeMarshallingStrategy.java:38)
	at com.thoughtworks.xstream.XStream.marshal(XStream.java:837)
	at com.thoughtworks.xstream.XStream.marshal(XStream.java:826)
	at com.thoughtworks.xstream.XStream.toXML(XStream.java:801)
	at br.com.caelum.vraptor.serialization.xstream.XStreamSerializer.serialize(XStreamSerializer.java:237)
	at br.com.drover.controller.ClientesController.lista(ClientesController.java:30)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at br.com.caelum.vraptor.interceptor.ExecuteMethodInterceptor.intercept(ExecuteMethodInterceptor.java:61)
	... 39 more

psico.indie · Julho 7, 2011, 7:34am

Ele está passando por lá sim. Também acho que deveria estar funcionando. Não estou entendendo o porquê de não estar funcionando.

Lucas_Cavalcanti · Julho 7, 2011, 7:47am

commita a última versão no seu projeto, que eu dou uma olhada

psico.indie · Julho 7, 2011, 8:22am

Commitei:

Lucas_Cavalcanti · Julho 7, 2011, 8:49am

adiciona isso no CustomJson:

xstream.aliasSystemAttribute(null, "class");

o xstream coloca o @class sempre que vc usa uma classe diferente da declarada no objeto…

psico.indie · Julho 7, 2011, 9:01am

Sendo assim, não bastava anotar as datas com @Temporal(TemporalType.DATE)?

Lucas_Cavalcanti · Julho 7, 2011, 9:40am

não… pq o jdbc retorna java.sql.Date, não java.util.Date

psico.indie · Julho 7, 2011, 9:52am

Deu certo! Esse XStream parece meio complicadinho.

Lucas_Cavalcanti · Julho 7, 2011, 10:05am

é nada
vai fazer essa mesma coisa em JAX-B ou coisa do tipo rsrs

psico.indie · Julho 7, 2011, 10:12am

Lucas, só uma pergunta: seria muito complicado implentar o vRaptor para deserealizar json para objectos java?

Lucas_Cavalcanti · Julho 7, 2011, 10:41am

não… só criar um deserializer baseado nesse daqui:

github.com

caelum/vraptor/blob/master/vraptor-core/src/main/java/br/com/caelum/vraptor/deserialization/XStreamXMLDeserializer.java

/***
 * Copyright (c) 2009 Caelum - www.caelum.com.br/opensource All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package br.com.caelum.vraptor.deserialization;

import java.io.InputStream;
import java.lang.reflect.Method;

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só que mudando o getXStream pra ficar parecido com o do :

github.com

caelum/vraptor/blob/master/vraptor-core/src/main/java/br/com/caelum/vraptor/serialization/xstream/XStreamJSONSerialization.java

/***
 * Copyright (c) 2009 Caelum - www.caelum.com.br/opensource All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */
package br.com.caelum.vraptor.serialization.xstream;

import java.io.IOException;

import javax.servlet.http.HttpServletResponse;

This file has been truncated. show original

mudando o accept pra “application/json”

lucasmurata · Outubro 5, 2011, 10:34pm

Nossa, esse tópico salvou as minhas madrugadas com esse codigo:

xstream.aliasSystemAttribute(null, "class");

Valeu.

system · Janeiro 6, 2016, 3:40am

Vraptor, como formatar datas em um json?

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