方法retrieveRequestToken引发＆QUOT;通信与服务提供者失败：空＆QUOT;

问题描述

我使用twitter4j从我的应用程序发送的tweet。当我调用该方法retrieveRequestToken，我得到错误的服务提供者的通信失败：空

I am using twitter4j to send tweet from my application. When I invoke the method retrieveRequestToken, I get the error "Communication with the service provider failed: null".

public static void askOAuth(Context context) {
    try {
        // Use Apache HttpClient for HTTP messaging
        consumer = new CommonsHttpOAuthConsumer(CONSUMER_KEY, CONSUMER_SECRET);
        provider = new CommonsHttpOAuthProvider(
                "https://api.twitter.com/oauth/request_token",
                "https://api.twitter.com/oauth/access_token",
                "https://api.twitter.com/oauth/authorize");
        String authUrl = provider.retrieveRequestToken(consumer, CALLBACK_URL);
        Toast.makeText(context, "Authorize this app!", Toast.LENGTH_LONG).show();
        context.startActivity(new Intent(Intent.ACTION_VIEW, Uri.parse(authUrl)));
    } catch (Exception e) {
        Log.e(APP, e.getMessage());
        Toast.makeText(context, e.getMessage(), Toast.LENGTH_LONG).show();
    }
}

感谢你。

推荐答案

如果这是ICS，我强烈建议不要使用 StrictMode.enableDefaults;

If this is in ICS, I highly recommend against using StrictMode.enableDefaults;.

ICS不允许HTTP请求发生在UI线程，所以当你如上这样做，你得到这个错误。

ICS does not allow Http requests to occur in the UI thread, so when you do as above, you get that error.

要解决这个问题，做 provider.retrieveRequestToken（消费者，CALLBACK_URL）; 在后台线程以及 provider.retrieveAccessToken（消费者，验证）;

To fix this, do provider.retrieveRequestToken(consumer, CALLBACK_URL); in a background thread as well as provider.retrieveAccessToken(consumer, verifier);.

来源：<一href="http://$c$c.google.com/p/oauth-signpost/issues/detail?can=2&start=0&num=100&q=&colspec=ID%20Type%20Status%20Priority%20Milestone%20Owner%20Summary&groupby=&sort=&id=71">http://$c$c.google.com/p/oauth-signpost/issues/detail?can=2&start=0&num=100&q=&colspec=ID%20Type%20Status%20Priority%20Milestone%20Owner%20Summary&groupby=&sort=&id=71

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