RESTEasy客户端：重建对象 [英] RESTEasy client: reconstructing an object

问题描述

我正在使用RESTEasy来使用REST服务，我正在尝试使用Twitter的搜索API。

I'm playing with RESTEasy to consume REST services, and I'm trying it out with Twitter's search API.

所以我创建了这个界面：

So I create this interface:

public interface SimpleClient {

  @GET
  @Path("search.json")
  @Produces("application/json")
  ClientResponse<Set<String>> getSearchResults(
      @QueryParam("q") String hashtag, 
      @QueryParam("result_type") String resultType
  );
}

并将其称为：

SimpleClient client = 
    ProxyFactory.create(SimpleClient.class,"http://search.twitter.com/");
ClientResponse<Set<String>> response = 
    client.getSearchResults("#wowodc","recent");
System.out.println(response.getEntity(Set.class));

但我得到：

ClientResponseFailure：无法找到内容类型application / json的MessageBodyReader; charset =utf-8并输入interface java.util.Set

ClientResponseFailure: Unable to find a MessageBodyReader of content-type application/json;charset="utf-8" and type interface java.util.Set

我尝试使用POJO而不是java.util.Set，但我得到了同样的异常。唯一没有抛出异常的是使用String而不是Set。

I have tried using a POJO instead of java.util.Set, but I'm getting the same kind of exception. The only thing that didn't throw an exception is using String instead of Set.

通过阅读Web上的一些示例代码，我认为Set或POJO为实体类型可以工作，但它不适合我。对Twitter的查询确实返回了有效结果。

By reading some example code on the Web, I was thinking that Set or a POJO as the entity type would have work, but it doesn't for me. The query to Twitter did return valid results.

推荐答案

您需要确保包含可以解组JSON响应的RESTEasy提供程序。有一个基于你可以使用的Jackson解析器库，它在docs 这里。

You need to make sure you include a RESTEasy provider that can unmarshal JSON responses. There's a one based on the Jackson parser library that you can use, it's described in the docs here.

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