Question

我有两种不同的REST方法，我想同时调用它们。我怎样才能在Retrofit 2中做到这一点？

我当然可以逐个打电话给他们，但是在改造中是否有任何建议的方法？

我期待的是：

Call<...> call1 = myService.getCall1();
Call<...> call2 = myService.getCall2();

MagicRetrofit.call (call1,call2,new Callback(...) {...} );  // and this calls them at the same time, but give me result with one method

Answer 1

我会看一下使用RxJava和Retrofit。我喜欢Zip函数but there's a ton of others。以下是使用Java 8的Zip示例：

odds  = Observable.from([1, 3, 5, 7, 9]);
evens = Observable.from([2, 4, 6]);

Observable.zip(odds, evens, {o, e -> [o, e]}).subscribe(
    { println(it); },                          // onNext
    { println("Error: " + it.getMessage()); }, // onError
    { println("Sequence complete"); }          // onCompleted
);

结果是

[1, 2]
[3, 4]
[5, 6]
Sequence complete

改造不应该困难得多。

您的改造服务如果您想要状态代码，对象应返回Observable<...>或Observable<Result<...>>。

然后你打电话：

Observable.zip(
    getMyRetrofitService().getCall1(),
    getMyRetrofitService().getCall2(),
    (result1, result2) -> return [result1,result2])
    .subscribe(combinedResults -> //Combined! Do something fancy here.)

Answer 2

您可以在集合中添加两个调用并使用Java8的parallelStream来并行执行两个调用

<?php namespace App\Providers;

use App\Chat;
use Auth;
use Illuminate\Support\ServiceProvider;

class AppServiceProvider extends ServiceProvider {

    /**
     * Bootstrap any application services.
     *
     * @return void
     */
    public function boot() {
        if (Auth::check()) {
            $total_mess = Chat::whereRaw('view = ?  and  to_user = ?', [0, Auth::user()->username])->count();
            view()->share('total_mess', $total_mess);
        }
        if (Auth::guest()) {
            view()->share('total_mess', '');
        }
    }

如何在Retrofit 2中同时调用多个请求

2 个答案: