带有Android的PHP套接字 [英] PHP Socket with android
本文介绍了带有Android的PHP套接字的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我想问一下如何创建一个可以实时接收来自Android手机的请求的PHP套接字吗?现在,我完成了这部分代码并能够使用telnet对其进行测试.但是,当Android手机尝试连接时,它无法接收任何内容或将任何内容发送到服务器.
I would like to ask how to create a PHP socket which able receive request from android phone in real time? For now, i done this part of code and able test it using telnet. However, when the android phone try to connect, it unable receive or send anything to server.
if (!defined('SOCKET_ADDRESS')) {
define('SOCKET_ADDRESS', '192.168.1.4');
}
if (!defined('SOCKET_PORT')) {
define('SOCKET_PORT', '5888');
}
if (!defined('MAX_CLIENTS')) {
define('MAX_CLIENTS', '10');
}
set_time_limit(0);
$socket = socket_create(AF_INET, SOCK_STREAM, SOL_TCP);
socket_set_option($socket, SOL_SOCKET, SO_REUSEADDR, 1);
socket_bind($socket, SOCKET_ADDRESS, SOCKET_PORT) or die('Could not bind to address ' . SOCKET_ADDRESS . ' on port ' . SOCKET_PORT . "!\n");
socket_listen($socket, MAX_CLIENTS) or die("Could not setup socket listener!\n");
// setup read socket array
$read = array();
// client array w/ default initial socket
$clients = array('0' => array('socket' => $socket));
// force debug at first run..
$debug = true;
$time = time();
printf('Time: %d%s', $time, "\n");
$status = true;
while ($status) {
if (time() - $time >= 10) {
$time = time();
printf('Time: %d%s', $time, "\n");
$debug = true;
}
if ($debug === true) {
printf('Debug: %s%s', $debug, "\n");
}
// $read[0] = $socket;
if ($debug) {
var_dump($read);
}
// Handle clients
for ($i = 0; $i < count($clients); $i++) {
if (isset($clients[$i]['socket'])) {
if ($debug === true) {
printf('Setting socket %d to client %d%s', $i, $i, "\n");
}
$read[$i] = $clients[$i]['socket'];
}
}
if ($debug) {
var_dump($read);
}
// Any changed sockets?
// $write and $except are only placeholders
$changed_sockets = socket_select($read, $write = NULL, $except = NULL, 0);
if ($debug === true) {
printf('Changed sockets: %d%s', $changed_sockets, "\n");
}
// Handle new connections
if (in_array($socket, $read)) {
for ($i = 0; $i < MAX_CLIENTS; $i++) {
if (!isset($clients[$i])) {
$clients[$i]['socket'] = socket_accept($socket);
socket_getpeername($clients[$i]['socket'], $ip);
$clients[$i]['ip'] = $ip;
printf('Accepting connection into client %d from %s%s', $i, $ip, "\n");
break;
}
// } elseif($i == MAX_CLIENTS - 1) {
// echo 'Too many clients connected!', "\n";
// }
if ($changed_sockets < 1) {
continue;
}
}
}
if ($debug) {
var_dump($clients);
}
for ($i = 0; $i < count($clients); $i++) {
$client = $clients[$i];
// Has our client socket seen any changes?
if (in_array($client['socket'], $read)) {
printf('Client %d has changed! Reading...%s', $i, "\n");
$data = socket_read($client['socket'], 1024);
if ($data === false) {
$error = socket_strerror(socket_last_error());
printf('An error occured...%s%s', $error, "\n");
}
printf("Read raw data %s from client %i%s", $data, $i, "\n");
if ($data === null) {
// disconnected
unset($clients[$i]);
}
$data = trim($data);
if ($data == 'Q') {
printf('Received exit command from client%s', "\n");
socket_close($clients[$i]['socket']);
$status = false;
} elseif ($data) {
// Strip whitespace
printf('Received data: %s from client %d%s', $data, $i, "\n");
$output = sprintf('%s%s%s', $data, "\n", chr(0));
socket_write($client['socket'], $output);
}
}
}
// reset debug
$debug = false;
}
socket_close($socket);
推荐答案
在build.gradle中添加此库.
Add this library in build.gradle.
compile "org.java-websocket:Java-WebSocket:1.3.0"
连接:
private void connectWebSocket() {
URI uri;
try {
uri = new URI("ws://websockethost:8080");
} catch (URISyntaxException e) {
e.printStackTrace();
return;
}
mWebSocketClient = new WebSocketClient(uri) {
@Override
public void onOpen(ServerHandshake serverHandshake) {
Log.i("Websocket", "Opened");
mWebSocketClient.send("Hello from " + Build.MANUFACTURER + " " + Build.MODEL);
}
@Override
public void onMessage(String s) {
final String message = s;
runOnUiThread(new Runnable() {
@Override
public void run() {
TextView textView = (TextView)findViewById(R.id.messages);
textView.setText(textView.getText() + "\n" + message);
}
});
}
@Override
public void onClose(int i, String s, boolean b) {
Log.i("Websocket", "Closed " + s);
}
@Override
public void onError(Exception e) {
Log.i("Websocket", "Error " + e.getMessage());
}
};
mWebSocketClient.connect();
}
发送消息:
public void sendMessage(String message) {
mWebSocketClient.send(message);
}
ref: https://github.com/elabs/mobile-websocket-example
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