Question

我想拦截改装引擎收到的所有回复，并扫描HTTP错误代码，例如错误403.

我知道我可以使用每个请求的失败（RetrofitError错误）回调并检查403，但我想全局包装响应。

我可以看到请求拦截是可能的，但我没有看到类似的响应选项。

有什么建议吗？

Answer 1

我能够通过向改装正在使用的OkHttpClient添加一个拦截器来实现这一点。

Retrofix 2.x：

   OkHttpClient.Builder clientBuilder = new OkHttpClient.Builder();
   clientBuilder.
            addInterceptor(new Interceptor() {
                @Override
                public Response intercept(Chain chain) throws IOException {
                   Request request = chain.request();
                   Response response = chain.proceed(request);
                   if (response.code() == 403) {
                         handleForbiddenResponse();
                   }
                   return response;
                }
            });


    Retrofit retrofit = new Retrofit.Builder()
            .baseUrl(API_BASE_URL)
            .addConverterFactory(GsonConverterFactory.create())
            .client(clientBuilder.build();)
            .build();

改造1.x：

public class ForbiddenInterceptor implements Interceptor {

    @Override
    public Response intercept(Chain chain) throws IOException {
        Request request = chain.request();
        Response response = chain.proceed(request);
        if (response.code() == 403) {
             handleForbiddenResponse();
        }
        return response;
    }
}



OkHttpClient okHttpClient = Utils.createUnsafeOkHttpClient();
okHttpClient.interceptors().add(new ForbiddenInterceptor());

RestAdapter.Builder restAdapterBuilder = new RestAdapter.Builder()
        .setEndpoint(API_BASE_URL)
        .setClient(new OkClient(okHttpClient));

Answer 2

另一种可能性是覆盖Retrofit execute中的OkClient方法。在我的情况下，我一直在寻找一个特定的响应头，所以它是这样的：

OkClient client = new OkClient(okHttpClient) {
    @Override
    public retrofit.client.Response execute(retrofit.client.Request request) throws IOException {
        retrofit.client.Response response = super.execute(request);

        // Do whatever with 'response', such as looking for the value of a particular header:

        List<retrofit.client.Header> headers = response.getHeaders();
        for (retrofit.client.Header header : headers) {
            if (MY_HEADER.equalsIgnoreCase(header.getName())) {
                this.savedValue = header.getValue();
                break;
            }
        }

        return response;
    }
};

RestAdapter.Builder restAdapterBuilder = new RestAdapter.Builder()
        .setEndpoint(API_BASE_URL)
        .setClient(client);

Answer 3

id='pass'

正如您在上面的代码段中所看到的，OkHttpClient okHttpClient = new OkHttpClient.Builder() .addInterceptor(new Interceptor() { @Override public okhttp3.Response intercept(Chain chain) throws IOException { Request request = chain.request(); okhttp3.Response response = chain.proceed(request); // todo deal with the issues the way you need to if (response.code() == 500) { startActivity( new Intent( ErrorHandlingActivity.this, ServerIsBrokenActivity.class ) ); return response; } return response; } }) .build(); Retrofit.Builder builder = new Retrofit.Builder() .baseUrl("http://your_url") .client(okHttpClient) .addConverterFactory(GsonConverterFactory.create()); Retrofit retrofit = builder.build();行访问服务器响应。因此，我们可以使用okhttp3.Response response = chain.proceed(request);检查状态代码，然后打开if (response.code() == 500)。

改造 - 全球拦截响应

3 个答案: