Question

以下代码调用了webservice，我希望在Android上使用Retrofit实现，但是我收到此错误：

No Retrofit annotation found

使用Web Service调用CURL：

curl -H "X-Auth-Token: 9HqLlyZOugoStsXCUfD_0YdwnNnunAJF8V47U3QHXSq" \
     -H "X-User-Id: aobEdbYhXfu5hkeqG" \
     http://localhost:3000/api/v1/channels.list

我用上面的代码编写了这个界面：

import retrofit2.Call;
import retrofit2.http.GET;
import retrofit2.http.Header;
public interface RocketRestfulService {
    @GET("/api/v1/channels.list")
    Call<List<ChannelsList>> getChannelsList(
            @Header("X-Auth-Token") String AuthToken,
            @Header("X-User-Id") String UserId,
            ChannelsList channelsList);
}

我正在通过此代码调用此休息Web Service：

ChannelsList channelsList = new ChannelsList();
Call<List<ChannelsList>> call = rocketRestfulService.getChannelsList(
        "HNv1VtMiyUky2RkXWUydyj4f2bfciQ6DzVQgKULSwfe",
        "Wz9ex2N2z9zzJWdzD",
        channelsList);
call.enqueue(new Callback<List<ChannelsList>>() {
    @Override
    public void onResponse(Call<List<ChannelsList>> call, final Response<List<ChannelsList>> response) {
        Log.e("contentLength ", response.code() + "");
    }
    @Override
    public void onFailure(Call<List<ChannelsList>> call, Throwable t) {
        t.printStackTrace();
    }
});

我的代码问题是什么，我无法调用，我收到错误？

Answer 1

您忘记了@Body注释。由于您必须发送正文，因此必须为您的API创建POST。如果不是POST，您必须找到如何发送ChannelsList才能成为GET请求，因为这取决于您的服务器实施。

@POST("/api/v1/channels.list")
Call<List<ChannelsList>> getChannelsList(
        @Header("X-Auth-Token") String AuthToken,
        @Header("X-User-Id") String UserId,
        @Body ChannelsList channelsList);

Answer 2

问题通过以下代码解决：

接口：

public interface RocketRestfulService {
    @GET("/api/v1/channels.list")
    Call<ResponseBody> getChannelsList(
            @Header("X-Auth-Token") String AuthToken,
            @Header("X-User-Id") String UserId);
}

致电请求并获得回复：

ChannelsList channelsList = new ChannelsList();
Call<ResponseBody> call = rocketRestfulService.getChannelsList(
        "HNv1VtMiyUky2RkXWUydyj4f2bfciQ6DzVQgKULSwfe",
        "Wz9ex2N2z9zzJWdzD");
call.enqueue(new Callback<ResponseBody>() {
    @Override
    public void onResponse(Call<ResponseBody> call, final Response<ResponseBody> response) {
        if (response.isSuccessful()) {
            try {
                String     jsonString = response.body().string();
                JSONObject jsonObject = new JSONObject(jsonString);
                JSONArray  jsonarray  = jsonObject.getJSONArray("channels");
            } catch (IOException e) {
                e.printStackTrace();
            } catch (JSONException e) {
                e.printStackTrace();
            }
        }
    }
    @Override
    public void onFailure(Call<ResponseBody> call, Throwable t) {
        Log.e("Err: ", t.getMessage());
    }
});

为改造实现自定义标头，我发现没有Retrofit注释，错误

2 个答案: