如何设置Autobahn Websocket的最大消息长度?

时间:2016-03-01 06:28:04

标签: java android python websocket autobahn

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

0 个答案:

没有答案
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