Java 用模块初始化Jersey客户端的正确方法是什么?
所以,这不应该这么难。我正试图让Jersey客户端应用程序中的Java 用模块初始化Jersey客户端的正确方法是什么?,java,module,jersey-client,Java,Module,Jersey Client,所以,这不应该这么难。我正试图让Jersey客户端应用程序中的ObjectMapper反序列化java.time.LocalDateTime。不幸的是,这导致了例外情况: Exception in thread "main" javax.ws.rs.client.ResponseProcessingException: com.fasterxml.jackson.databind.JsonMappingException: Can not construct instance of java.
ObjectMapper
反序列化java.time.LocalDateTime
。不幸的是,这导致了例外情况:
Exception in thread "main" javax.ws.rs.client.ResponseProcessingException: com.fasterxml.jackson.databind.JsonMappingException: Can not construct instance of java.time.LocalDateTime: no suitable constructor found, can not deserialize from Object value (missing default constructor or creator, or perhaps need to add/enable type information?)
好的,有一个模块为Java时间类型实现适当的序列化器/反序列化器:com.fasterxml.jackson.datatype.jsr310.JavaTimeModule
。很好,所以我们只需要在应用程序中安装该模块,一切正常。但是,如何
文档中没有提到这一点。我尝试了以下几行init代码的所有合理组合,但都没有成功:
ClientBuilder builder = ClientBuilder.newBuilder();
builder.register(new RequestFilter(this));
builder.register(new ResponseFilter(this));
builder.register(new JacksonJsonProvider(objectMapper));
builder.register(new JavaTimeModule());
ClientConfig cc = new ClientConfig();
cc.register(new JacksonJsonProvider(objectMapper));
cc.register(new JavaTimeModule());
// cc.getClasses().add(JavaTimeModule.class); // no go, this collection is unmodifiable
builder.register(cc);
// Client client = builder.build();
Client client = builder.withConfig(cc).build();
client.register(new JacksonJsonProvider(objectMapper));
client.register(new JavaTimeModule());
//client.getConfiguration().getClasses().add(JavaTimeModule.class); // and this one too.
上面的ObjectMapper
是一个单独的映射器,它在我的应用程序中随处可见(供客户端之外使用),并用以下代码初始化:
objectMapper = new ObjectMapper();
objectMapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
objectMapper.configure(SerializationFeature.INDENT_OUTPUT, true);
objectMapper.configure(SerializationFeature.WRITE_NULL_MAP_VALUES, false);
objectMapper.registerModule(new JavaTimeModule());
它也不能映射LocalDateTime
那么,配置Jersey客户端以使用该模块并反序列化java.time.LocalDateTime
?的正确方法是什么呢
val mapper=ObjectMapper()
registerModule(JavaTimeModule())
(为kotlin道歉-如您所料翻译成Java)。试试看
val mapper=ObjectMapper()
registerModule(JavaTimeModule())
(为kotlin道歉——正如您所期望的那样翻译成Java)
val provider = JacksonJaxbJsonProvider()
provider.setMapper(mapper)
val clientConfig = ClientConfig()
clientConfig.register(provider)