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我想将Android客户端连接到java服务器。我的Android客户端在真实的手机和服务器上的本地主机。我试图连接，但显示错误：我无法从android clien连接到java服务器的套接字
09-28 11:08:44.399 14330-14371/smsagent.sedi.ru.sockets E/AndroidRuntime﹕ FATAL EXCEPTION: AsyncTask #1
Process: smsagent.sedi.ru.sockets, PID: 14330
java.lang.RuntimeException: An error occured while executing doInBackground()
at android.os.AsyncTask$3.done(AsyncTask.java:300)
at java.util.concurrent.FutureTask.finishCompletion(FutureTask.java:355)
at java.util.concurrent.FutureTask.setException(FutureTask.java:222)
at java.util.concurrent.FutureTask.run(FutureTask.java:242)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
at java.lang.Thread.run(Thread.java:818)
Caused by: java.lang.SecurityException: Permission denied (missing INTERNET permission?)
at java.net.InetAddress.lookupHostByName(InetAddress.java:451)
at java.net.InetAddress.getAllByNameImpl(InetAddress.java:252)
at java.net.InetAddress.getAllByName(InetAddress.java:215)
at java.net.Socket.tryAllAddresses(Socket.java:109)
at java.net.Socket.<init>(Socket.java:178)
at java.net.Socket.<init>(Socket.java:150)
at smsagent.sedi.ru.sockets.MainActivity$MyAsync.doInBackground(MainActivity.java:65)
at smsagent.sedi.ru.sockets.MainActivity$MyAsync.doInBackground(MainActivity.java:61)
at android.os.AsyncTask$2.call(AsyncTask.java:288)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
at java.lang.Thread.run(Thread.java:818)
Caused by: android.system.GaiException: android_getaddrinfo failed: EAI_NODATA (No address associated with hostname)
at libcore.io.Posix.android_getaddrinfo(Native Method)
at libcore.io.ForwardingOs.android_getaddrinfo(ForwardingOs.java:55)
at java.net.InetAddress.lookupHostByName(InetAddress.java:438)
at java.net.InetAddress.getAllByNameImpl(InetAddress.java:252)
at java.net.InetAddress.getAllByName(InetAddress.java:215)
at java.net.Socket.tryAllAddresses(Socket.java:109)
at java.net.Socket.<init>(Socket.java:178)
at java.net.Socket.<init>(Socket.java:150)
at smsagent.sedi.ru.sockets.MainActivity$MyAsync.doInBackground(MainActivity.java:65)
at smsagent.sedi.ru.sockets.MainActivity$MyAsync.doInBackground(MainActivity.java:61)
at android.os.AsyncTask$2.call(AsyncTask.java:288)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
at java.lang.Thread.run(Thread.java:818)
Caused by: android.system.ErrnoException: android_getaddrinfo failed: EACCES (Permission denied)
at libcore.io.Posix.android_getaddrinfo(Native Method)
at libcore.io.ForwardingOs.android_getaddrinfo(ForwardingOs.java:55)
at java.net.InetAddress.lookupHostByName(InetAddress.java:438)
at java.net.InetAddress.getAllByNameImpl(InetAddress.java:252)
at java.net.InetAddress.getAllByName(InetAddress.java:215)
at java.net.Socket.tryAllAddresses(Socket.java:109)
at java.net.Socket.<init>(Socket.java:178)
at java.net.Socket.<init>(Socket.java:150)
at smsagent.sedi.ru.sockets.MainActivity$MyAsync.doInBackground(MainActivity.java:65)
at smsagent.sedi.ru.sockets.MainActivity$MyAsync.doInBackground(MainActivity.java:61)
at android.os.AsyncTask$2.call(AsyncTask.java:288)
at java.util.concurrent.FutureTask.run(FutureTask.java:237)
at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
at java.lang.Thread.run(Thread.java:818)
我设置的Android权限：
<uses-permission android:name="ANDROID.PERMISSION.INTERNET" />
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE" />
这是我的代码：
private class MyAsync extends AsyncTask<Void, Void, Void>{
@Override
protected Void doInBackground(Void... params) {
try {
mSocket = new Socket(Constants.CHAT_SERVER_URL, 4444);
} catch (IOException e) {
e.printStackTrace();
}
return null;
}
}
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
MyAsync myAsync = new MyAsync();
myAsync.execute();
}
它是服务器主机：
public static final String CHAT_SERVER_URL = "http://192.168.0.33";
和
我试图打开这个IP在手机浏览器 - 打开一个空白页，并没有错误。 如果我尝试从我的电脑上的Java核心客户端连接 - 都很好。这意味着服务器运行良好。我尝试从Android模拟器与10.0.0.2 IP连接 - 没有帮助。
编辑 我添加权限
<uses-permission android:name="android.permission.CHANGE_NETWORK_STATE"/>
<uses-permission android:name="android.permission.CHANGE_WIFI_STATE"/>
<uses-permission android:name="android.permission.ACCESS_NETWORK_STATE"/>
<uses-permission android:name="android.permission.ACCESS_WIFI_STATE"/>
<uses-permission android:name="android.permission.INTERNET"/>
和应用程序不会压坏，但错误
09-28 11:36:36.829 28006-28046/smsagent.sedi.ru.sockets W/System.err﹕ java.net.UnknownHostException: Unable to resolve host "http://192.168.0.33": No address associated with hostname
09-28 11:36:36.829 28006-28046/smsagent.sedi.ru.sockets W/System.err﹕ at java.net.InetAddress.lookupHostByName(InetAddress.java:457)
09-28 11:36:36.829 28006-28046/smsagent.sedi.ru.sockets W/System.err﹕ at java.net.InetAddress.getAllByNameImpl(InetAddress.java:252)
09-28 11:36:36.829 28006-28046/smsagent.sedi.ru.sockets W/System.err﹕ at java.net.InetAddress.getAllByName(InetAddress.java:215)
09-28 11:36:36.829 28006-28046/smsagent.sedi.ru.sockets W/System.err﹕ at java.net.Socket.tryAllAddresses(Socket.java:109)
09-28 11:36:36.829 28006-28046/smsagent.sedi.ru.sockets W/System.err﹕ at java.net.Socket.<init>(Socket.java:178)
09-28 11:36:36.829 28006-28046/smsagent.sedi.ru.sockets W/System.err﹕ at java.net.Socket.<init>(Socket.java:150)
09-28 11:36:36.829 28006-28046/smsagent.sedi.ru.sockets W/System.err﹕ at smsagent.sedi.ru.sockets.MainActivity$MyAsync.doInBackground(MainActivity.java:65)
09-28 11:36:36.829 28006-28046/smsagent.sedi.ru.sockets W/System.err﹕ at smsagent.sedi.ru.sockets.MainActivity$MyAsync.doInBackground(MainActivity.java:61)
09-28 11:36:36.829 28006-28046/smsagent.sedi.ru.sockets W/System.err﹕ at android.os.AsyncTask$2.call(AsyncTask.java:288)
09-28 11:36:36.829 28006-28046/smsagent.sedi.ru.sockets W/System.err﹕ at java.util.concurrent.FutureTask.run(FutureTask.java:237)
09-28 11:36:36.829 28006-28046/smsagent.sedi.ru.sockets W/System.err﹕ at android.os.AsyncTask$SerialExecutor$1.run(AsyncTask.java:231)
09-28 11:36:36.829 28006-28046/smsagent.sedi.ru.sockets W/System.err﹕ at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1112)
09-28 11:36:36.829 28006-28046/smsagent.sedi.ru.sockets W/System.err﹕ at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:587)
09-28 11:36:36.829 28006-28046/smsagent.sedi.ru.sockets W/System.err﹕ at java.lang.Thread.run(Thread.java:818)
09-28 11:36:36.829 28006-28046/smsagent.sedi.ru.sockets W/System.err﹕ Caused by: android.system.GaiException: android_getaddrinfo failed: EAI_NODATA (No address associated with hostname)
09-28 11:36:36.829 28006-28046/smsagent.sedi.ru.sockets W/System.err﹕ at libcore.io.Posix.android_getaddrinfo(Native Method)
09-28 11:36:36.829 28006-28046/smsagent.sedi.ru.sockets W/System.err﹕ at libcore.io.ForwardingOs.android_getaddrinfo(ForwardingOs.java:55)
09-28 11:36:36.829 28006-28046/smsagent.sedi.ru.sockets W/System.err﹕ at java.net.InetAddress.lookupHostByName(InetAddress.java:438)
该端口是否正确？ –
确保任何防火墙不限制来自外部ips的连接。 – WannaBeGeek
我应该怎么知道？我命令所有的东西正确，但不起作用，所以我问 – Pavel