相关疑难解决方法(0)

当我正在使用的库(路标1.1-SNAPSHOT)时,我似乎在Android 1.5上遇到了一个特殊的问题,它连续两次连接到远程服务器.第二个连接始终失败了HttpURLConnection.getResponseCode()的-1

这是一个暴露问题的测试用例:

// BROKEN
public void testDefaultOAuthConsumerAndroidBug() throws Exception {
    for (int i = 0; i < 2; ++i) {
        final HttpURLConnection c = (HttpURLConnection) new URL("https://api.tripit.com/oauth/request_token").openConnection();
        final DefaultOAuthConsumer consumer = new DefaultOAuthConsumer(api_key, api_secret, SignatureMethod.HMAC_SHA1);
        consumer.sign(c);                             // This line...
        final InputStream is = c.getInputStream();
        while( is.read() >= 0 ) ;                     // ... in combination with this line causes responseCode -1 for i==1 when using api.tripit.com but not mail.google.com
        assertTrue(c.getResponseCode() > 0);
    }
}

基本上,如果我签署请求然后使用整个输入流,则下一个请求将失败,结果代码为-1.如果我只是从输入流中读取一个字符,似乎不会发生故障.

请注意,任何网址都不会发生这种情况 - …

我正在尝试从服务器注销.但是它会返回"0"响应代码并带有此异常.我正在使用GET动词来做到这一点.

logcat的

10-17 14:54:13.261: W/System.err(868): java.io.IOException: Received authentication challenge is null
10-17 14:54:13.284: W/System.err(868):  at libcore.net.http.HttpURLConnectionImpl.processAuthHeader(HttpURLConnectionImpl.java:397)
10-17 14:54:13.284: W/System.err(868):  at libcore.net.http.HttpURLConnectionImpl.processResponseHeaders(HttpURLConnectionImpl.java:345)
10-17 14:54:13.304: W/System.err(868):  at libcore.net.http.HttpURLConnectionImpl.getResponse(HttpURLConnectionImpl.java:276)
10-17 14:54:13.324: W/System.err(868):  at libcore.net.http.HttpURLConnectionImpl.getResponseCode(HttpURLConnectionImpl.java:479)
10-17 14:54:13.324: W/System.err(868):  at com.remote.synchronizer.haris.CustomHttpClient.executeGet(CustomHttpClient.java:131)
10-17 14:54:13.354: W/System.err(868):  at com.remote.synchronizer.haris.OptionsActivity$1$3$1.run(OptionsActivity.java:87)
10-17 14:54:13.364: W/System.err(868):  at android.os.Handler.handleCallback(Handler.java:605)
10-17 14:54:13.384: W/System.err(868):  at android.os.Handler.dispatchMessage(Handler.java:92)
10-17 14:54:13.384: W/System.err(868):  at android.os.Looper.loop(Looper.java:137)
10-17 14:54:13.404: W/System.err(868):  at android.app.ActivityThread.main(ActivityThread.java:4424)
10-17 14:54:13.424: W/System.err(868):  at java.lang.reflect.Method.invokeNative(Native Method)
10-17 14:54:13.424: W/System.err(868):  at java.lang.reflect.Method.invoke(Method.java:511)
10-17 14:54:13.454: W/System.err(868):  at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:784)
10-17 14:54:13.474: W/System.err(868): …

我需要一个响应代码,但它抛出一个IOException.我不知道发生了什么事!

    try
    {
        url = new URL(urlBuilder.toString());
        conn = (HttpURLConnection) url.openConnection();
        conn.setDoInput(true);
        conn.setConnectTimeout(TIME_OUT);
        conn.setRequestMethod(METHOD_GET);
        conn.setRequestProperty("accept", "*/*");
        conn.connect();
        int responseCode = conn.getResponseCode();   //throw IOException:Received authentication challenge is null
        if (responseCode == HTTP_OK)
        {
            inStream = conn.getInputStream();
            response = getResponse(inStream);
        }
        else
        {
            response = "response code?"+responseCode;
        }
    } catch (Exception e)
    {
        throw e;
    }
    finally
    {
        conn.disconnect();
    }
    return response;
}

IOException是:

05-03 20:14:01.577: WARN/System.err(1515): java.io.IOException: Received authentication challenge is null
05-03 20:14:01.596: WARN/System.err(1515):     at org.apache.harmony.luni.internal.net.www.protocol.http.HttpURLConnectionImpl.doRequestInternal(HttpURLConnectionImpl.java:1694)
05-03 20:14:01.577: INFO/QQWeiBo(1515): Received …