相关疑难解决方法(0)

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): …

我们正在使用HTTP基本身份验证向Web服务器发出基于HttpURLConnection的请求.代码在Android版本2.x,3.x.,4.0.x上运行良好现在使用Jelly Bean和v4.1.x身份验证失败,LogCat中包含以下消息:

01-27 10:54:18.886: ...::doReadRawData(731): An exception occured while reading data from remote host. httpURLConn.responseCode = 401 / httpURLConn.responseMessage = UNAUTHORIZED
01-27 10:54:18.886: ...::doReadRawData(731): java.io.IOException: No authentication challenges found

我们在Android文档中使用HttpURLConnection的身份验证代码:

private void doAuthorize() {
        Authenticator.setDefault(new Authenticator() {
            protected PasswordAuthentication getPasswordAuthentication() {
                return new PasswordAuthentication(USER, PASSWORD.toCharArray());
            }
        });
    }

经过进一步调查和排除故障后,我们发现4.1 Jelly Bean中没有调用此代码!

Android Jelly Bean 4.1中基本身份验证的解决方法或正确方法有哪些？

有人发现这个相关主题的Android源代码有所不同,我认为我们遇到的问题与这个差异有关:HttpURLConnection在Android 2.x中运行良好,但在4.1中没有运行:没有发现身份验证挑战

在Android 5.0及更高版本中运行时,我的代码运行正常.但是在Android 4.1.1中它会抛出java.net.SocketTimeoutException:SSL握手超时.

    URL url;
    HttpURLConnection connection = null; 
    String charset = "UTF-8";

    String accessToken = "";

    try {

        ArrayList<NameValuePair> postParameters = new ArrayList<NameValuePair>();
        postParameters.add(new BasicNameValuePair("client_id", CLIENT_ID));
        postParameters.add(new BasicNameValuePair("client_secret", CLIENT_SECRET));
        postParameters.add(new BasicNameValuePair("grant_type", CLIENT_CREDENTIALS_GRANT_TYPE));

        //Create connection
        url = new URL(ACCESS_TOKEN_URL);
        connection = (HttpURLConnection)url.openConnection();
        connection.setReadTimeout( 10000 /*milliseconds*/ );
        connection.setConnectTimeout( 15000 /* milliseconds */ );
        connection.setInstanceFollowRedirects(false);
        connection.setRequestMethod("POST");
        connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded;charset=" + charset);
        connection.setUseCaches(false);
        connection.setDoInput(true);
        connection.setDoOutput(true);

        //Send request
        DataOutputStream wr = new DataOutputStream(connection.getOutputStream());
        wr.write(getQuery(postParameters).getBytes(charset));
        wr.flush();
        wr.close();

        int responseCode = connection.getResponseCode();
        InputStream is = null;

        if(responseCode==HttpStatus.SC_OK) …

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 …