我使用" Autobahn"在android(Java)上作为客户端,在linux上作为服务器(python)。当我从客户端发送大消息时,我们已断开连接。这是因为超过了最大消息长度。对于不同的设备,这个限制也是不同的。对于" Minix Neo X8"是2Mb和#34; HTC One"是8Mb。问题是什么?如何强制设置最大长度消息?
import de.tavendo.autobahn.WebSocketConnection;
import de.tavendo.autobahn.WebSocketException;
import de.tavendo.autobahn.WebSocketHandler;
import de.tavendo.autobahn.WebSocketOptions;
WebSocketManager mWebSocketManager = new WebSocketManager();
MessageHandler messageHandler = new MessageHandler();
private final WebSocketConnection mConnection = new WebSocketConnection();
private void createSocket() {
try {
mConnection.connect("ws://192.168.45.86:1488/echo", mWebSocketManager);
} catch (WebSocketException e) {
Log.d(TAG, e.toString());
}
}
private class WebSocketManager extends WebSocketHandler {
@Override
public void onTextMessage(String data) {
try {
messageHandler.parseMessage(data);
} catch (ParseException e) {
e.printStackTrace();
}
}
@Override
public void onOpen() {
Log.d("RECD", "Connection established");
messageHandler.sendMessage("Request", "Login", 16, null);
}
@Override
public void onClose(int code, String reason) {
}
}
我尝试使用 setMaxMessagePayloadSize 来设置消息的最大长度(以八位字节为单位):
private void createSocket() {
try {
WebSocketOptions options = new WebSocketOptions();
options.setMaxMessagePayloadSize(33554432);
mConnection.connect("ws://192.168.45.86:1488/echo", mWebSocketManager , options);
} catch (WebSocketException e) {
Log.d("Error", e.toString());
}
}
但它不会影响邮件的长度。如果不使用 setMaxMessagePayloadSize ,那么当消息超过65536字节时,我会收到异常:
W / System.err:de.tavendo.autobahn.WebSocketException:消息有效负载 超过有效载荷限制
该文件指出消息的默认长度为4 mb。
http://autobahn.ws/android/_gen/de/tavendo/autobah/WebSocketOptions.html#setmaxmessagepayloadsize