创建拦截器类

• ReceivedCookiesInterceptor：用于获取服务器返回的Cookie。

  public class ReceivedCookiesInterceptor implements Interceptor {    @Override    public Response intercept(Chain chain) throws IOException {        Response originalResponse = chain.proceed(chain.request());        if (!originalResponse.headers("Set-Cookie").isEmpty()) {            for (String header : originalResponse.headers("Set-Cookie")) {                cookies.add(header);            }        }        return originalResponse;    }}

• AddCookiesInterceptor：用于在请求头中添加存储的Cookie。

  public class AddCookiesInterceptor implements Interceptor {    @Override    public Response intercept(Chain chain) throws IOException {        Request.Builder builder = chain.request().newBuilder();        for (String cookie : cookies) {            builder.addHeader("Cookie", cookie);            Log.v("OkHttp", "Adding Header: " + cookie);        }        return chain.proceed(builder.build());    }}

配置Retrofit和OkHttpClient

• 创建OkHttpClient并添加拦截器：

  OkHttpClient okHttpClient = new OkHttpClient.Builder()        .addInterceptor(new AddCookiesInterceptor())        .addInterceptor(new ReceivedCookiesInterceptor())        .connectTimeout(30, TimeUnit.SECONDS)        .build();

• 创建Retrofit对象：

  Retrofit retrofit = new Retrofit.Builder()        .baseUrl(Constant.BASE_URL)        .addConverterFactory(GsonConverterFactory.create())        .addCallAdapterFactory(RxJavaCallAdapterFactory.create())        .client(okHttpClient)        .build();

使用Retrofit发起请求

• 定义接口并创建调用实例：

  @GET("/token")void getToken(@Header("Content-Type") String type);retrofit.create();

测试和验证

• 通过工具如Fiddler抓包，确保Cookie被正确接收和添加。
• 检查日志，确保AddCookiesInterceptor正确添加了Cookie。