发送的广播数据报在Android中无法通过EACCES _Android

关山初度尘未洗，策马扬鞭再奋蹄！这篇文章主要讲述发送的广播数据报在Android中无法通过EACCES相关的知识，希望能为你提供帮助。
我想在android中使用套接字。但是它失败了，因为我收到了EACCESS异常。为了确保这一点，我包括了100多个Android权限，这不是一个权限问题。 ; ）我还会问我是否接受这些权限，是否手动安装...
2185-2199 / com.myexample.wakeonlan W / System.err：原因：libcore.io.ErrnoException：绑定失败：EACCES（权限被拒绝）
【发送的广播数据报在Android中无法通过EACCES】2185-2199 / com.myexample.wakeonlan W / System.err：位于libcore.io.Posix.bind（本机方法）
2185-2199 / com.myexample.wakeonlan W / System.err：位于libcore.io.ForwardingOs.bind（ForwardingOs.java:39）
2185-2199 / com.myexample.wakeonlan W / System.err：位于libcore.io.IoBridge.bind（IoBridge.java:87）
我尝试使用：

DatagramSocket socket = new DatagramSocket(1); try { InetSocketAddress address = new InetSocketAddress( "255.255.255.255", 0); DatagramPacket datagram = new DatagramPacket(packetData, packetLength, address); socket.setBroadcast(true); socket.send(datagram); } finally { if (socket != null) { socket.close(); } }

错误：

07-25 10:07:32.4622185-2185/com.myexample.wakeonlan D/gralloc_goldfish﹕ Emulator without GPU emulation detected. 07-25 10:07:42.6222185-2199/com.myexample.wakeonlan W/System.err﹕ java.net.BindException: bind failed: EACCES (Permission denied) 07-25 10:07:42.6222185-2199/com.myexample.wakeonlan W/System.err﹕ at libcore.io.IoBridge.bind(IoBridge.java:89) 07-25 10:07:42.6222185-2199/com.myexample.wakeonlan W/System.err﹕ at java.net.PlainDatagramSocketImpl.bind(PlainDatagramSocketImpl.java:68) 07-25 10:07:42.6222185-2199/com.myexample.wakeonlan W/System.err﹕ at java.net.DatagramSocket.createSocket(DatagramSocket.java:133) 07-25 10:07:42.6222185-2199/com.myexample.wakeonlan W/System.err﹕ at java.net.DatagramSocket.< init> (DatagramSocket.java:78) 07-25 10:07:42.6222185-2199/com.myexample.wakeonlan W/System.err﹕ at com.myexample.wakeonlan.WakeOnLan.wake(WakeOnLan.java:137) 07-25 10:07:42.6222185-2199/com.myexample.wakeonlan W/System.err﹕ at com.myexample.wakeonlan.WakeOnLan.wake(WakeOnLan.java:23) 07-25 10:07:42.6222185-2199/com.myexample.wakeonlan W/System.err﹕ at com.myexample.wakeonlan.EntryActivity$MyAsyncTask.doInBackground(EntryActivity.java:57) 07-25 10:07:42.6222185-2199/com.myexample.wakeonlan W/System.err﹕ at com.myexample.wakeonlan.EntryActivity$MyAsyncTask.doInBackground(EntryActivity.java:41) 07-25 10:07:42.6222185-2199/com.myexample.wakeonlan W/System.err﹕ at android.os.AsyncTask$2.call(AsyncTask.java:264) 07-25 10:07:42.6222185-2199/com.myexample.wakeonlan W/System.err﹕ at java.util.concurrent.FutureTask$Sync.innerRun(FutureTask.java:305) 07-25 10:07:42.6222185-2199/com.myexample.wakeonlan W/System.err﹕ at java.util.concurrent.FutureTask.run(FutureTask.java:137) 07-25 10:07:42.6222185-2199/com.myexample.wakeonlan W/System.err﹕ at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:208) 07-25 10:07:42.6222185-2199/com.myexample.wakeonlan W/System.err﹕ at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1076) 07-25 10:07:42.6222185-2199/com.myexample.wakeonlan W/System.err﹕ at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:569) 07-25 10:07:42.6222185-2199/com.myexample.wakeonlan W/System.err﹕ at java.lang.Thread.run(Thread.java:856) 07-25 10:07:42.6222185-2199/com.myexample.wakeonlan W/System.err﹕ Caused by: libcore.io.ErrnoException: bind failed: EACCES (Permission denied) 07-25 10:07:42.6222185-2199/com.myexample.wakeonlan W/System.err﹕ at libcore.io.Posix.bind(Native Method) 07-25 10:07:42.6222185-2199/com.myexample.wakeonlan W/System.err﹕ at libcore.io.ForwardingOs.bind(ForwardingOs.java:39) 07-25 10:07:42.6222185-2199/com.myexample.wakeonlan W/System.err﹕ at libcore.io.IoBridge.bind(IoBridge.java:87) 07-25 10:07:42.6222185-2199/com.myexample.wakeonlan W/System.err﹕ ... 14 more

相关代码：

private class MyAsyncTask extends AsyncTask< String, Void, String> {String msg = ""; @Override protected String doInBackground(String... params) { String adr = ""; if(params.length > 0) adr = params[0]; else { msg = "No Input for Mac Address"; return msg; }try { com.example.ethernet.wakeonlan.WakeOnLan.wake(adr); msg = "ok" + adr; } catch (Exception e) { msg = "not ok" + adr; e.printStackTrace(); }return "Executed"; }@Override protected void onPostExecute(String result) { TextView txt = (TextView) findViewById(R.id.textView); txt.setText(msg); }@Override protected void onPreExecute() {}@Override protected void onProgressUpdate(Void... values) {} }

单击按钮：

public void sendWakeOnLan(View v) { String adr = "a valid mac address"; new MyAsyncTask().execute(adr); }

答案由于声誉我无法添加评论我认为最好更改子网广播地址示例的IP地址255.255.255.255：192.168.1.255 ...，具体取决于您的网络地址。并且也将您的端口固定为1024以外的主要值
另一答案在我的情况下，此问题是由于我试图绑定DatagramSocket而引起的，该DatagramSocket必须已被设备上的另一个程序使用。我更改了端口，它正常工作。