返回的InputStream在设备黑莓空 [英] InputStream return null in device blackberry

问题描述

我使用这样的黑莓连接类获得的InputStream

I am getting the inputstream using the connection class in blackberry like this

HttpConnection httpConnection = new HttpConnection("http://www.bankofcanada.ca/rss/fx/noon/fx-noon-all.xml");
InputStream is = httpConnection.StreamConnection();

它运作良好的模拟器，但是当在设备上运行的输入流返回null。可以告诉这个问题的解决方案。先谢谢了。

it works well in simulator, but the input stream returns null when run at device. Can please tell the solution for this problem. Thanks in advance.

推荐答案

在实际的设​​备，你需要添加相应的URL参数，根据您所使用的连接类型（WIFI / BES / BIS / WAP2 / TCP）。

On real device you need to append appropriate URL parameter according to connection type(WiFi/BES/BIS/WAP2/TCP) you are using.

    For example if you are using BES connection:

    streamConn = (StreamConnection)Connector.open("http://www.bankofcanada.ca/rss/fx/noon/fx-noon-all.xml;deviceside=false");

and if your are using WiFi:

    streamConn = (StreamConnection)Connector.open("http://www.bankofcanada.ca/rss/fx/noon/fx-noon-all.xml;deviceside=true;interface=wifi");

and For WAP2/TCP:

        streamConn = (StreamConnection)Connector.open("http://www.bankofcanada.ca/rss/fx/noon/fx-noon-all.xml;deviceside=true");

这篇关于返回的InputStream在设备黑莓空的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！