Jersey异常:SEVERE:Java类的消息体阅读器 [英] Jersey Exception : SEVERE: A message body reader for Java class
问题描述
我有一个基于Jersey的Rest WS输出JSON。我正在实现一个Jersey客户端来调用WS并使用JSON响应。我拥有的客户端代码在
I have a Jersey based Rest WS which outputs JSON. I am implementing a Jersey Client to invoke the WS and consume the JSON response. The client code I have is below
WebResource r = restClient.resource(UriBuilder.fromUri("http://localhost/").port(8080).build());
String resp = r.path("/user").accept(MediaType.APPLICATION_JSON).get(String.class);
User[] users = r.path("/user").accept(MediaType.APPLICATION_JSON).get(User[].class);
第二行正确输出JSON字符串响应,但第三行没有发生JSON到POJO,我得到以下内容异常堆栈跟踪
The 2nd line outputs the JSON string response correctly, however the 3rd line to marshal JSON to the POJO is not happening and I get the following exception stacktrace
SEVERE: A message body reader for Java class [Lorg.shoppingsite.model.entity.jpa.User;, and Java type class [Lorg.shoppingsite.model.entity.jpa.User;, and MIME media type application/json was not found
Dec 21, 2011 11:32:01 AM com.sun.jersey.api.client.ClientResponse getEntity
SEVERE: The registered message body readers compatible with the MIME media type are:
*/* ->
com.sun.jersey.core.impl.provider.entity.FormProvider
com.sun.jersey.core.impl.provider.entity.StringProvider
com.sun.jersey.core.impl.provider.entity.ByteArrayProvider
com.sun.jersey.core.impl.provider.entity.FileProvider
com.sun.jersey.core.impl.provider.entity.InputStreamProvider
com.sun.jersey.core.impl.provider.entity.DataSourceProvider
com.sun.jersey.core.impl.provider.entity.XMLJAXBElementProvider$General
com.sun.jersey.core.impl.provider.entity.ReaderProvider
com.sun.jersey.core.impl.provider.entity.DocumentProvider
com.sun.jersey.core.impl.provider.entity.SourceProvider$StreamSourceReader
com.sun.jersey.core.impl.provider.entity.SourceProvider$SAXSourceReader
com.sun.jersey.core.impl.provider.entity.SourceProvider$DOMSourceReader
com.sun.jersey.core.impl.provider.entity.XMLRootElementProvider$General
com.sun.jersey.core.impl.provider.entity.XMLListElementProvider$General
com.sun.jersey.core.impl.provider.entity.XMLRootObjectProvider$General
com.sun.jersey.core.impl.provider.entity.EntityHolderReader
我的请求中有正确的MIME类型。我的POJO已使用XMLRootElement注释。我错过了什么
I have the correct MIME TYPES in my request. My POJO has been annotated with XMLRootElement. What am I missing.
谢谢
推荐答案
我能够通过以下方式解决问题为jersey-json添加maven依赖。
I was able to fix the issue by adding the maven dependency for jersey-json.
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