小编man*_*yar的帖子

我试图在谷歌应用引擎(1.9.22)上使用OKHTTP(版本2.4.0)进行改造(1.9.0).

这是我如何使用它:

    OkHttpClient okHttpClient = new OkHttpClient();
    okHttpClient.setConnectTimeout(COMPOSER_MODULE_CONNECTION_TIMEOUT,  TimeUnit.SECONDS);
    okHttpClient.setReadTimeout(COMPOSER_MODULE_SOCKET_TIMEOUT, TimeUnit.SECONDS);

    RestAdapter restAdapter = new RestAdapter.Builder()
                .setLogLevel(RestAdapter.LogLevel.FULL)
                .setConverter(new JacksonConverter())
                .setEndpoint(ENDPOINT_PATH)
                .setClient(new OkClient(okHttpClient))
                .build();

这会引发以下错误:

java.lang.NoClassDefFoundError: java.net.ProxySelector is a restricted class. Please see the Google App Engine developer's guide for more details.
at com.google.apphosting.runtime.security.shared.stub.java.net.ProxySelector.<clinit>(ProxySelector.java)
at com.squareup.okhttp.OkHttpClient.copyWithDefaults(OkHttpClient.java:614)
at com.squareup.okhttp.Call.<init>(Call.java:50)
at com.squareup.okhttp.OkHttpClient.newCall(OkHttpClient.java:595)
at retrofit.client.OkClient.execute(OkClient.java:53)

我从错误中收集到"java.net.ProxySelector"未列入白名单以用于google appengine.

问题1)是否可以在谷歌应用引擎(1.9.22)上使用OKHTTP(版本2.4.0)进行改造(1.9.0)？即,是否有解决此错误的方法

如果没有,问题2)还有其他方法:

(a) use async HTTP calls with google appengine (with URLFetchService, for instance) ?

(b) set connection and socket timeouts for the client used from (a) …