什么处理了转换异常？

如果有这样的什么处理了转换异常？

@POST 
@Consumes({"application/json"}) 
@Produces({"application/json"}) 
public Response createProfileExtensionSchema(ExtensionMetaDataRest extensionSchema, @Context UriInfo info)

POST方法的对象ExtensionMetaDataRest标注有杰克逊的资源

如果有JAX-RS应用

public class MyJaxrsApplication extends JaxRsApplication implements InitializingBean, BeanFactoryAware { 

    @Autowired 
    @Qualifier("restletComponent") 
    public Component component; 

    @Autowired 
    public MyJaxrsApplication(final Context context) { 
    super(context); 
    } 

    public void afterPropertiesSet() throws Exception { 
    setContext(component.getContext().createChildContext()); 
    add(new MyApplication()); 
    getJaxRsRestlet().addClass(ServiceExceptionMapper.class); 
    getJaxRsRestlet().addClass(BaseExceptionMapper.class); 
    component.getDefaultHost().attach(this); 
    } 

    public void setBeanFactory(final BeanFactory beanFactory) throws BeansException { 
    setObjectFactory(new ObjectFactory() { 
     public <T> T getInstance(Class<T> jaxRsClass) throws InstantiateException { 
     // Bean instantiation is delegated to spring 
     return beanFactory.getBean(jaxRsClass); 
     } 
    }); 
    } 
}

我开始是这样的：

public void start() throws Exception { 

    LOGGER.info("Starting web component"); 

    application.setDebugging(true); 

    restletComponent.getDefaultHost().attach(configService.getBaseUrl(), application); 
    restletComponent.start(); 
    //following added to test if status service was used 
    final StatusService statusService = application.getStatusService(); 
    if (!statusService.isEnabled()) { 
    statusService.setEnabled(true); 
    } 
    if (!statusService.isStarted()) { 
    statusService.stop(); 
    } 
    proxyManager.configureProxy(); 

    //Start proxy now 
    camelContext.start(); 
    camelContext.startAllRoutes(); 
    LOGGER.info("Web component started"); 

    }

所以我依靠除ionMapper处理响应异常。这在大多数情况下都能正常工作，除非我有JSON错误。如果JSON是格式不正确，我很期待去通过异常映射，而是我得到以下内容的400错误的请求：

org.restlet.ext.jaxrs.internal.exceptions.ConvertRepresentationException: Could not convert the message body to a com.genesys.ucs.cs.model.ExtensionMetaDataRest 
    at org.restlet.ext.jaxrs.internal.exceptions.ConvertRepresentationException.object(ConvertRepresentationException.java:49) 
    at org.restlet.ext.jaxrs.internal.wrappers.params.EntityGetter.getValue(EntityGetter.java:107) 
    at org.restlet.ext.jaxrs.internal.wrappers.params.ParameterList.get(ParameterList.java:1123) 
    at org.restlet.ext.jaxrs.internal.wrappers.AbstractMethodWrapper.internalInvoke(AbstractMethodWrapper.java:160) 
    at org.restlet.ext.jaxrs.internal.wrappers.ResourceMethod.invoke(ResourceMethod.java:283) 
    at org.restlet.ext.jaxrs.JaxRsRestlet.invokeMethod(JaxRsRestlet.java:997) 
    at org.restlet.ext.jaxrs.JaxRsRestlet.handle(JaxRsRestlet.java:746) 
    at org.restlet.routing.Filter.doHandle(Filter.java:150) 
    at org.restlet.routing.Filter.handle(Filter.java:197) 
    at org.restlet.routing.Filter.doHandle(Filter.java:150) 
    at org.restlet.routing.Filter.handle(Filter.java:197) 
    at org.restlet.routing.Filter.doHandle(Filter.java:150) 
    at org.restlet.engine.application.StatusFilter.doHandle(StatusFilter.java:140) 
    at org.restlet.routing.Filter.handle(Filter.java:197) 
    at org.restlet.routing.Filter.doHandle(Filter.java:150) 
    at org.restlet.routing.Filter.handle(Filter.java:197) 
    at org.restlet.engine.CompositeHelper.handle(CompositeHelper.java:202) 
    at org.restlet.engine.application.ApplicationHelper.handle(ApplicationHelper.java:75) 
    at org.restlet.Application.handle(Application.java:385) 
    at org.restlet.routing.Filter.doHandle(Filter.java:150) 
    at org.restlet.routing.Filter.handle(Filter.java:197) 
    at org.restlet.routing.Router.doHandle(Router.java:422) 
    at org.restlet.routing.Router.handle(Router.java:639) 
    at org.restlet.routing.Filter.doHandle(Filter.java:150) 
    at org.restlet.routing.Filter.handle(Filter.java:197) 
    at org.restlet.routing.Router.doHandle(Router.java:422) 
    at org.restlet.routing.Router.handle(Router.java:639) 
    at org.restlet.routing.Filter.doHandle(Filter.java:150) 
    at org.restlet.engine.application.StatusFilter.doHandle(StatusFilter.java:140) 
    at org.restlet.routing.Filter.handle(Filter.java:197) 
    at org.restlet.routing.Filter.doHandle(Filter.java:150) 
    at org.restlet.routing.Filter.handle(Filter.java:197) 
    at org.restlet.engine.CompositeHelper.handle(CompositeHelper.java:202) 
    at org.restlet.Component.handle(Component.java:408) 
    at org.restlet.Server.handle(Server.java:507) 
    at org.restlet.engine.connector.ServerHelper.handle(ServerHelper.java:63) 
    at org.restlet.engine.adapter.HttpServerHelper.handle(HttpServerHelper.java:143) 
    at org.restlet.ext.jetty.JettyServerHelper$WrappedServer.handle(JettyServerHelper.java:273) 
    at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:310) 
    at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:257) 
    at org.eclipse.jetty.io.AbstractConnection$2.run(AbstractConnection.java:540) 
    at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:635) 
    at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:555) 
    at java.lang.Thread.run(Thread.java:745) 
Caused by: com.fasterxml.jackson.databind.JsonMappingException: Unexpected character ('}' (code 125)): was expecting double-quote to start field name 
at [Source: [email protected]; line: 2, column: 39] (through reference chain: com.genesys.ucs.cs.model.ExtensionMetaDataRest["attributes"]->java.util.ArrayList[0]) 
    at com.fasterxml.jackson.databind.JsonMappingException.wrapWithPath(JsonMappingException.java:210) 
    at com.fasterxml.jackson.databind.JsonMappingException.wrapWithPath(JsonMappingException.java:189) 
    at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.deserialize(CollectionDeserializer.java:249) 
    at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.deserialize(CollectionDeserializer.java:206) 
    at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.deserialize(CollectionDeserializer.java:25) 
    at com.fasterxml.jackson.databind.deser.SettableBeanProperty.deserialize(SettableBeanProperty.java:538) 
    at com.fasterxml.jackson.databind.deser.impl.MethodProperty.deserializeAndSet(MethodProperty.java:99) 
    at com.fasterxml.jackson.databind.deser.BeanDeserializer.vanillaDeserialize(BeanDeserializer.java:238) 
    at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:118) 
    at com.fasterxml.jackson.databind.ObjectReader._bindAndClose(ObjectReader.java:1269) 
    at com.fasterxml.jackson.databind.ObjectReader.readValue(ObjectReader.java:864) 
    at org.restlet.ext.jackson.JacksonRepresentation.getObject(JacksonRepresentation.java:299) 
    at org.restlet.ext.jackson.JacksonConverter.toObject(JacksonConverter.java:208) 
    at org.restlet.service.ConverterService.toObject(ConverterService.java:229) 
    at org.restlet.ext.jaxrs.internal.provider.ConverterProvider.readFrom(ConverterProvider.java:144) 
    at org.restlet.ext.jaxrs.internal.wrappers.provider.SingletonProvider.readFrom(SingletonProvider.java:409) 
    at org.restlet.ext.jaxrs.internal.wrappers.params.EntityGetter.getValue(EntityGetter.java:101) 
    ... 42 more 
Caused by: com.fasterxml.jackson.core.JsonParseException: Unexpected character ('}' (code 125)): was expecting double-quote to start field name 
at [Source: [email protected]; line: 2, column: 39] 
    at com.fasterxml.jackson.core.JsonParser._constructError(JsonParser.java:1419) 
    at com.fasterxml.jackson.core.base.ParserMinimalBase._reportError(ParserMinimalBase.java:508) 
    at com.fasterxml.jackson.core.base.ParserMinimalBase._reportUnexpectedChar(ParserMinimalBase.java:437) 
    at com.fasterxml.jackson.core.json.UTF8StreamJsonParser._handleOddName(UTF8StreamJsonParser.java:1799) 
    at com.fasterxml.jackson.core.json.UTF8StreamJsonParser._parseName(UTF8StreamJsonParser.java:1496) 
    at com.fasterxml.jackson.core.json.UTF8StreamJsonParser.nextToken(UTF8StreamJsonParser.java:693) 
    at com.fasterxml.jackson.databind.deser.BeanDeserializer.vanillaDeserialize(BeanDeserializer.java:231) 
    at com.fasterxml.jackson.databind.deser.BeanDeserializer.deserialize(BeanDeserializer.java:118) 
    at com.fasterxml.jackson.databind.deser.std.CollectionDeserializer.deserialize(CollectionDeserializer.java:232) 
    ... 56 more

我不明白这是为什么不通过处理异常映射器。

我试图禁用状态服务，没有任何改变。我试图添加我自己的，它没有被使用。

如果资源内部发生错误，则调用异常映射器，但不在jackson转换过程中。我希望能够在发生json转换错误的情况下自定义发送给用户的消息

来源

2015-10-30 gartcimore

查看JAXRS扩展的代码后，看起来ConvertRepresentationException s被直接封装到JAXRS WebApplicationException中。应该在这个级别使用JaxRsProviders.convert方法，但不是。所以在这种情况下你不能利用JAXRS ExceptionHandler。

有关更多详细信息，请参阅JaxRsRestlet#invokeMethod和ExceptionHandler#convertRepresentationExc方法的内容。似乎JaxRsRestlet#handleInvocationTargetExc方法的内容就是您期望的行为。

我为此创建了一个问题：https://github.com/restlet/restlet-framework-java/issues/1162。

希望它HEPS你，蒂埃里

来源

2015-11-02 09:07:35

感谢亨利。有没有办法使用现有的机制来重载这种行为？ – gartcimore

什么处理了转换异常？

回答

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