HttpURLConnection 老是不成功。

[cj12321]

String urlStr = "http://www.xxx.com/DevLogin.aspx?uid=chang&pwd=123456&version=V1.00.1";
try
{
URL myUrl = new URL(urlStr);

if (myUrl.getHost().length()<=0)
{
return retStr;
}

HttpURLConnection conn = (HttpURLConnection)myUrl.openConnection();

conn.setDoInput(true);
conn.setDoOutput(true);
conn.setConnectTimeout(20000);
conn.setReadTimeout(20000);
conn.setRequestMethod("POST");

conn.setRequestProperty("Accept-Language","zh-cn");
conn.setRequestProperty("Accept-Encoding","gzip, deflate");

conn.connect();

int resCode = conn.getResponseCode();
if(resCode == HttpURLConnection.HTTP_OK)
{
//.................
}

}
catch(Exception e)
{
e.printStackTrace();
}

由于我是用代理上网，而在模拟器里已经设置好了代理，模拟器的浏览器可以上baidu.com
XML里也加好了<uses-permission android:name="android.permission.INTERNET" />
url的网址放在浏览器里也可以访问
但是，每次都是到conn.connect();超时，超时后直接跳到Exception里e=Socket not connected
urlStr换成"http://www.baidu.com"也不行。
请帮我看看可能是什么问题，谢谢。

[Hinagi]

你的程序没有连接到网络,

//用这个代码测试哪些网络可以用,参数带运营商提供的网络类型
	public static String showActiveNetwork() {
		StringBuffer sb = new StringBuffer();
		ConnectivityManager connectivity = (ConnectivityManager) context
				.getSystemService(Context.CONNECTIVITY_SERVICE);
		if (connectivity != null) {
			NetworkInfo[] info = connectivity.getAllNetworkInfo();
			if (info != null) {
				for (int i = 0; i < info.length; i++) {
					if (info[i].getState() == NetworkInfo.State.CONNECTED) {
						sb.append(info[i].getApType());
						sb.append("   ");
					}
				}
			}
		}
		
		return sb.toString();
	}

//这个函数连接网络,中国移动的话可以带"wap" 和 "internet"两个值
	private static ConnectivityManager connectivity = 
		(ConnectivityManager)context.getSystemService(Context.CONNECTIVITY_SERVICE);

	public static void connectNetwork(String apnApType)
	{
		connectivity.startUsingNetworkFeature(ConnectivityManager.TYPE_MOBILE, apnApType);
	}

[BaddyBoy]

<uses-permission android:name="android.permission.INTERNET" /> 这个加了么？

[wang_zun_ren]

POST ==> GET