android4.0中HttpURLConnection抛异常java.io.FileNotFoundException

URL url = new URL(urlstr);
HttpURLConnection httpCon = (HttpURLConnection) url.openConnection();
httpCon.setRequestMethod("GET");
httpCon.setDoOutput(true);
httpCon.connect();

?

原因:
4.0中设置httpCon.setDoOutput(true),将导致请求以post方式提交,即使设置了httpCon.setRequestMethod("GET");
将代码中的httpCon.setDoOutput(true);删除即可