Okhttp3设置超时是没有用的 [英] Okhttp3 set timeout is useless

问题描述

OkHttpClient client;

client = new OkHttpClient.Builder()
        .connectTimeout(5, TimeUnit.SECONDS)
        .writeTimeout(5, TimeUnit.SECONDS)
        .readTimeout(5, TimeUnit.SECONDS)
        .build();

Request request22 = new Request.Builder()
        .url("http://www.goo.com/")
        .build();

Utils.myLog("-begin-");
Response response = null;
try {
    response = client.newCall(request22).execute();
    if (response.isSuccessful()) {
        Utils.myLog("-donw-");
    }
} catch (Exception e) {
    e.printStackTrace();
    Utils.myLog("-error-" + e.toString());
}

这是我的代码，我将超时设置为5秒，但是在开始"之后仍然需要 20秒才能收到错误unknownhostexception"?为什么我的代码没用?我看了OKHTTP的源代码，默认超时是10秒(如果我是对的)，我很困惑.

This is my code, I have set timeout to 5 seconds, but it still taked 20 seconds to receive "error unknownhostexception " after "begin"? why my code is useless? I have looked the source code of OKHTTP, default timeout is 10 seconds(if I'm right), I'm confused.

任何人都可以提供帮助，我非常感谢.

Anyone can help, id really appreciated.

推荐答案

目前，OkHttp无法中断耗时的DNS请求(请参阅

For now, OkHttp can't interrupt time-consuming DNS requests (see https://github.com/square/okhttp/issues/95), but you still can do something like this:

        OkHttpClient client = new OkHttpClient.Builder()
                .addInterceptor(interceptor)
                .readTimeout(15, TimeUnit.SECONDS)
                .writeTimeout(15, TimeUnit.SECONDS)
                .connectTimeout(15, TimeUnit.SECONDS)
                .dns(hostname -> Single.fromCallable(
                        () -> Arrays.asList(InetAddress.getAllByName(hostname))
                ).timeout(15, TimeUnit.SECONDS)
                        .subscribeOn(Schedulers.io())
                        .observeOn(Schedulers.computation())
                        .onErrorReturnItem(new ArrayList<>())
                        .blockingGet())
                .build();

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