简单说下Retrofit怎么设置请求头信息

简单说下Retrofit怎么设置请求头信息

1、直接在参数里写 每次访问的时候都要传入一下

@GET("weatherservice/citylist")

Observable<WeatherRestBean> queryWeather(@Header("apikey") String apikey,@Query("cityname") String cityname);

2、写到注解里这样就少了个参数，但是每定义个接口都要写一次也是比较麻烦

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@Headers("apikey:ac7c302dc489a69082cbee6a89e3646c")

@GET("weatherservice/cityid")

Observable<WeatherEntity> query(@Query("cityid")String cityid);

3、在创建Retrofit的时候添加，最方便的方式

OkHttpClient client = new OkHttpClient.Builder()
.addInterceptor(new Interceptor() {
@Override
public Response intercept(Chain chain) throws IOException {
Request request = chain.request();
Request.Builder builder1 = request.newBuilder();
Request build = builder1.addHeader("apikey", "ac7c302dc489a69082cbee6********").build();
return chain.proceed(build);
}
}).retryOnConnectionFailure(true)
.build();
mRetrofit = new Retrofit.Builder()
.client(client)
.baseUrl(ConstantApi.url)
.addCallAdapterFactory(RxJavaCallAdapterFactory.create())
.addConverterFactory(GsonConverterFactory.create())