Question

我是android的新手。任何人都告诉我如何使用retrofit为api_key添加标题。我无法理解我是如何做到的。

我从net.where找到这个代码我必须将此代码放在android文件夹结构中。我对此感到困惑。我必须添加api_key。

// Define the interceptor, add authentication headers
Interceptor interceptor = new Interceptor() {
  @Override
  public okhttp3.Response intercept(Chain chain) throws IOException {
    Request newRequest = chain.request().newBuilder().addHeader("User-Agent", "Retrofit-Sample-App").build();
    return chain.proceed(newRequest);
  }
};

// Add the interceptor to OkHttpClient
OkHttpClient.Builder builder = new OkHttpClient.Builder();
builder.interceptors().add(interceptor);
OkHttpClient client = builder.build();

// Set the custom client when building adapter
Retrofit retrofit = new Retrofit.Builder()
  .baseUrl("https://api.github.com")
  .addConverterFactory(GsonConverterFactory.create())
  .client(client)
  .build();

Answer 1

您可以将api_key存储在strings.xml文件中，如下所示：

<string name="your_api_key_id" translatable="false">YOUR_API_KEY</string>

然后，在你的OkHttpClient定义类中，编写一个方法来构建你的OkHttpClient：

private final static String API_KEY_IDENTIFIER = "key_identifier";

private OkHttpClient getHttpClient(){
        OkHttpClient.Builder httpClient = new OkHttpClient.Builder();
        httpClient.addInterceptor(new Interceptor() {
            @Override
            public Response intercept(Chain chain) throws IOException {
                Request original = chain.request();
                HttpUrl originalUrl = original.url();
                HttpUrl url = originalUrl.newBuilder()
                        .addQueryParameter(API_KEY_IDENTIFIER, mContext.getString(R.string.your_api_key_id))
                        .build();
                Request.Builder requestBuilder = original.newBuilder().url(url);
                Request request = requestBuilder.build();
                return chain.proceed(request);
            }
        });
        return httpClient.build();
    }

您应该使用Singleton模式实现客户端构建器类，以便将客户端构建集中在代码中的一个位置

如何使用api_key访问api使用Retrofit

1 个答案: