Android连接到MJPEG流 - 权限被拒绝错误

时间:2012-04-09 14:31:43

标签: java android sockets mjpeg

我正在使用此代码:

public static MjpegInputStream read(String url) {
    HttpResponse res;
    DefaultHttpClient httpclient = new DefaultHttpClient();   
    httpclient.getCredentialsProvider().setCredentials(
            new AuthScope(AuthScope.ANY_HOST, AuthScope.ANY_PORT),
            new UsernamePasswordCredentials("admin", "1234"));
    try {
        res = httpclient.execute(new HttpGet(URI.create(url)));
        return new MjpegInputStream(res.getEntity().getContent());              
    } catch (ClientProtocolException e) { Log.e("MjpegInputStream - CP", e.getMessage()); } 
    catch (IllegalArgumentException e) { Log.e("MjpegInputStream - IA", e.getMessage()); } 
    catch (IOException e) { Log.e("MjpegInputStream - IO", e.toString() + " " + e.getMessage()); } 
    return null;
}

我得到 IOExcetion:

  

04-09 17:27:52.350:E / MjpegInputStream - IO(5749):   java.net.SocketException:Permission denied Permission denied

我的网址是 http://192.168.1.113/videostream.cgi 当我用浏览器连接时,用户名和密码为( admin 1234

我做错了什么?

更新:

我添加了INTERNET权限,现在我的应用程序在此行崩溃了:

res = httpclient.execute(new HttpGet(URI.create(url)));

NetworkOnMainThreadException

2 个答案:

答案 0 :(得分:1)

好像你忘了添加

<uses-permission android:name="android.permission.INTERNET"/>

到你的清单文件。

另见Security and Permissions

答案 1 :(得分:1)

您的 NetworkOnMainThreadException 错误是由在主UI线程上运行网络操作引起的。我有一个类似的问题,还没有弄清楚如何正确修复它,但我知道你需要让MjpegInputStream进入自己的线程。一个临时的解决方案是允许网络操作在UI线程上运行,但这是不好的做法,不应该发货:

//DO NOT LEAVE THIS IN PUBLISHED CODE: http://stackoverflow.com/a/9984437/1233435
StrictMode.ThreadPolicy policy = new StrictMode.ThreadPolicy.Builder()
.permitAll()
.build();
StrictMode.setThreadPolicy(policy);
//END of DO NOT LEAVE THIS IN PUBLISHED CODE