Question

以下是我获得异常的代码（超时）请提供相同的解决方案或教程。在4.0.4 api级设备上使用

 HttpClient client = new DefaultHttpClient();

HttpPost request = new HttpPost(url);

 List<NameValuePair> params = new LinkedList<NameValuePair>();

> param has some values and a string of bitmap.

 HttpResponse response = client.execute(request);

StringBuilder receivedData = new StringBuilder();

BufferedReader reader = new BufferedReader(new InputStreamReader(response.getEntity().getContent()));

String line = null;

while ((line = reader.readLine()) != null) 
{

receivedData.append(line);

}

Answer 1

试试这个：

HttpConnectionParams.setConnectionTimeout(httpParams,
        TIMEOUT_MILLISEC);
HttpConnectionParams.setSoTimeout(httpParams, TIMEOUT_MILLISEC);

Answer 2

首先，你需要了解什么是connectiontimeoutexception：

连接到HTTP服务器或等待来自HttpConnectionManager的可用连接时超时。

这意味着您的设备的互联网无法与HTTP服务器建立连接并且请求超时。你可以做以下两件事来避免这种情况：

在使用以下方法进行HTTP呼叫之前检查是否有活动的互联网连接：

public static Boolean checkActiveInternet(Context activity) {
ConnectivityManager cm = (ConnectivityManager) activity.getSystemService(Context.CONNECTIVITY_SERVICE);
    NetworkInfo netInfo = cm.getActiveNetworkInfo();
    if (netInfo != null && netInfo.isConnectedOrConnecting()) {
        return true;
    } else if (netInfo != null&& (netInfo.getState() == NetworkInfo.State.DISCONNECTED|| netInfo.getState() == NetworkInfo.State.DISCONNECTING|| netInfo.getState() == NetworkInfo.State.SUSPENDED || netInfo.getState() == NetworkInfo.State.UNKNOWN)) {
        return false;
    } else {
        return false;
    }

}

为HTTP请求设置更大的超时时间，如下所示：

public static String connect（String url）抛出IOException {

HttpGet httpget = new HttpGet(url);
HttpResponse response;
HttpParams httpParameters = new BasicHttpParams();
int timeoutConnection = 60 * 1000;
HttpConnectionParams.setConnectionTimeout(httpParameters, timeoutConnection);
int timeoutSocket = 60 * 1000;

HttpConnectionParams.setSoTimeout(httpParameters, timeoutSocket);
HttpClient httpclient = new DefaultHttpClient(httpParameters);
try {

    response = httpclient.execute(httpget);

    HttpEntity entity = response.getEntity();
    if (entity != null) {
        InputStream instream = entity.getContent();
        result = convertStreamToString(instream);
        // instream.close();
    }
} catch (ClientProtocolException e) {
    Utilities.showDLog("connect", "ClientProtocolException:-" + e);
} catch (IOException e) {
    Utilities.showDLog("connect", "IOException:-" + e);
}
return result;

}

Android连接TimeOut异常

2 个答案: