在AVD上测试没问题。换到设备上时报FileNotFound的异常，经常报这个异常。各位帮忙看看。
代码如下：
public class HttpAssist {
public static String doPost(JSONObject json) throws IOException{
URL postUrl = new URL(Config.url);
HttpURLConnection connection = (HttpURLConnection) postUrl.openConnection();
connection.setDoOutput(true);
connection.setDoInput(true);
connection.setRequestMethod("POST");
connection.setUseCaches(false);
connection.connect();
OutputStreamWriter out = new OutputStreamWriter (connection
.getOutputStream());
out.write( Config.getParameterName + "=" + json.toString());
out.flush();
out.close(); // flush and close
BufferedReader reader = new BufferedReader(new InputStreamReader(connection.getInputStream(),"utf-8"));
String line="";
String res = "";
while ((line = reader.readLine()) != null){
res += line;
System.out.println(line);
}
reader.close();
connection.disconnect();
return res;
}
}
异常如下：
也不是每次都报，但是经常会报这个异常。查了半天也没查到点有用的东西。各位，就看你们了。。。
HttpURLConnection FileNotFoundExcept
------解决方案--------------------
获取流之前 建议 判断responseCode是200.
------解决方案--------------------
那你就把返回的状态码判断下看看