android - Retrofit 从基本 url 中删除查询参数

Question

我有用于所有请求的查询参数。它被添加到基本 url，如下所示

private val baseUrl = HttpUrl.Builder()
            .scheme("http")
            .host("ws.audioscrobbler.com")
            .addPathSegment("2.0")
            .addPathSegment("")
            .addQueryParameter("format", "json")
            .addQueryParameter("api_key", "val")
            .build()

retrofit = Retrofit.Builder()
                .baseUrl(baseUrl)
                .client(okHttpClient)
                .build()

api服务调用是

 @GET("./")
    fun searchTracks(@Query("otherParam") query: String): Call<Any>

正确构建 url 直到进行实际调用。它删除了在基本 url 中添加的查询参数，只保留在服务调用中添加的参数。
在调试中显示，直到在 ExecutorCallAdapterFactory 中调用 delegate.enqueue():"http://ws.audioscrobbler.com/2.0/?format=json&api_key=val&otherParam=val "
显示在日志中(通过拦截器):“http://ws.audioscrobbler.com/2.0/?otherParam=val”

知道为什么会发生这种情况以及如何保留参数吗？

Answer 1

您应该在请求拦截器中将查询参数添加到 url。

        OkHttpClient.Builder httpClient =  
    new OkHttpClient.Builder();
httpClient.addInterceptor(new Interceptor() {  
    @Override
    public Response intercept(Chain chain) throws IOException {
        Request original = chain.request();
        HttpUrl originalHttpUrl = original.url();

        HttpUrl url = originalHttpUrl.newBuilder()
                .addQueryParameter("format", "json")
                .addQueryParameter("api_key", "val")
                .build();

        // Request customization: add request headers
        Request.Builder requestBuilder = original.newBuilder()
                .url(url);

        Request request = requestBuilder.build();
        return chain.proceed(request);
    }
});