将Android客户端连接到sails.js

Question

我正在使用nkzawa socket.io android client。 如何将它连接到sails.js服务器？ 我试过的方法从Sending Socket request from Client (iOS & Android) to Sails.js Server和Simple Sails.js and Android Example，但我得到我的船帆服务器上的以下错误：

Running "watch" task 
Waiting... 
verbose: A socket is being allowed to connect, but the session could not be loaded. Will create an empty, one-time session to use for the life of the socket connection. Details: 
Error: Session could not be loaded 
    at _createError (/usr/local/node-v0.12.4-linux-x64/lib/node_modules/sails/lib/hooks/session/index.js:271:21) 
    at Immediate._onImmediate (/usr/local/node-v0.12.4-linux-x64/lib/node_modules/sails/lib/hooks/session/index.js:274:13) 
    at processImmediate [as _immediateCallback] (timers.js:358:17) { [Error: Session could not be loaded] code: 'E_SESSION' } 
verbose: A socket is being allowed to connect, but the session could not be loaded. Will create an empty, one-time session to use for the life of the socket connection. Details: 
Error: Session could not be loaded 
    at _createError (/usr/local/node-v0.12.4-linux-x64/lib/node_modules/sails/lib/hooks/session/index.js:271:21) 
    at Immediate._onImmediate (/usr/local/node-v0.12.4-linux-x64/lib/node_modules/sails/lib/hooks/session/index.js:274:13) 
    at processImmediate [as _immediateCallback] (timers.js:358:17) { [Error: Session could not be loaded] code: 'E_SESSION' } 
verbose: Could not fetch session, since connecting socket has no cookie (is this a cross-origin socket?) 
Generated a one-time-use cookie:sails.sid=s%3AZfXLqUZt5kQ4M0hPd-NI6-0AzciPjXDf.IjhbWcteKvKB9h5v0kcxYRis8Lo1JhpTHN9eTweXpdwand saved it on the socket handshake. 
This will start this socket off with an empty session, i.e. (req.session === {}) 
That "anonymous" section will only last until the socket is disconnected unless you persist the session id in your database, 
or by setting the set-cookie response header for an HTTP request that you *know* came from the same user (etc) 
Alternatively, just make sure the socket sends a `cookie` header or query param when it initially connects. 
verbose: Could not fetch session, since connecting socket has no cookie (is this a cross-origin socket?) 
Generated a one-time-use cookie:sails.sid=s%3AFOsga3uhvU0N-CZsgAPAjY_IWZlGb5Cr.%2FjoQX1LkUU0OWeB1Kt3pr7cbFFOkMAirJ5ODPLwXgNAand saved it on the socket handshake. 
This will start this socket off with an empty session, i.e. (req.session === {}) 
That "anonymous" section will only last until the socket is disconnected unless you persist the session id in your database, 
or by setting the set-cookie response header for an HTTP request that you *know* came from the same user (etc) 
Alternatively, just make sure the socket sends a `cookie` header or query param when it initially connects. 
verbose: Receiving incoming message from Socket.io: [ { url: '/user/new' } ] 
error: Error (SAILS:HOOK:SOCKETS:PARSE_VIRTUAL_REQ):: Failed to parse incoming socket.io request. 
    at new constructor (/usr/local/node-v0.12.4-linux-x64/lib/node_modules/sails/node_modules/sails-hook-sockets/standalone/create-error-constructor.js:38:16) 
    at Errorpack.factory [as PARSE_VIRTUAL_REQ] (/usr/local/node-v0.12.4-linux-x64/lib/node_modules/sails/node_modules/sails-hook-sockets/standalone/create-error-factory.js:34:12) 
    at respondWithParseError (/usr/local/node-v0.12.4-linux-x64/lib/node_modules/sails/node_modules/sails-hook-sockets/lib/receive-incoming-sails-io-msg.js:247:29) 
    at receiveIncomingSailsIOMsg (/usr/local/node-v0.12.4-linux-x64/lib/node_modules/sails/node_modules/sails-hook-sockets/lib/receive-incoming-sails-io-msg.js:41:14) 
    at Socket.<anonymous> (/usr/local/node-v0.12.4-linux-x64/lib/node_modules/sails/node_modules/sails-hook-sockets/lib/on-connect.js:84:9) 
    at Socket.emit (events.js:107:17) 
    at Socket.onevent (/usr/local/node-v0.12.4-linux-x64/lib/node_modules/sails/node_modules/sails-hook-sockets/node_modules/socket.io/lib/socket.js:330:8) 
    at Socket.onpacket (/usr/local/node-v0.12.4-linux-x64/lib/node_modules/sails/node_modules/sails-hook-sockets/node_modules/socket.io/lib/socket.js:290:12) 
    at Client.ondecoded (/usr/local/node-v0.12.4-linux-x64/lib/node_modules/sails/node_modules/sails-hook-sockets/node_modules/socket.io/lib/client.js:193:14) 
    at Decoder.Emitter.emit (/usr/local/node-v0.12.4-linux-x64/lib/node_modules/sails/node_modules/sails-hook-sockets/node_modules/socket.io/node_modules/socket.io-parser/node_modules/component-emitter/index.js:134:20) 
    at Decoder.add (/usr/local/node-v0.12.4-linux-x64/lib/node_modules/sails/node_modules/sails-hook-sockets/node_modules/socket.io/node_modules/socket.io-parser/index.js:247:12) 
    at Client.ondata (/usr/local/node-v0.12.4-linux-x64/lib/node_modules/sails/node_modules/sails-hook-sockets/node_modules/socket.io/lib/client.js:175:18) 
    at Socket.emit (events.js:107:17) 
    at Socket.onPacket (/usr/local/node-v0.12.4-linux-x64/lib/node_modules/sails/node_modules/sails-hook-sockets/node_modules/socket.io/node_modules/engine.io/lib/socket.js:99:14) 
    at WebSocket.emit (events.js:129:20) 
    at WebSocket.Transport.onPacket (/usr/local/node-v0.12.4-linux-x64/lib/node_modules/sails/node_modules/sails-hook-sockets/node_modules/socket.io/node_modules/engine.io/lib/transport.js:91:8) { [Error (SAILS:HOOK:SOCKETS:PARSE_VIRTUAL_REQ):: Failed to parse incoming socket.io request.] 
    code: 'SAILS:HOOK:SOCKETS:PARSE_VIRTUAL_REQ', 
    name: 'Error (SAILS:HOOK:SOCKETS:PARSE_VIRTUAL_REQ):', 
    status: 400, 
    message: 'Failed to parse incoming socket.io request.', 
    stack: 'Error (SAILS:HOOK:SOCKETS:PARSE_VIRTUAL_REQ):: Failed to parse incoming socket.io request.\n at new constructor (/usr/local/node-v0.12.4-linux-x64/lib/node_modules/sails/node_modules/sails-hook-sockets/standalone/create-error-constructor.js:38:16)\n at Errorpack.factory [as PARSE_VIRTUAL_REQ] (/usr/local/node-v0.12.4-linux-x64/lib/node_modules/sails/node_modules/sails-hook-sockets/standalone/create-error-factory.js:34:12)\n at respondWithParseError (/usr/local/node-v0.12.4-linux-x64/lib/node_modules/sails/node_modules/sails-hook-sockets/lib/receive-incoming-sails-io-msg.js:247:29)\n at receiveIncomingSailsIOMsg (/usr/local/node-v0.12.4-linux-x64/lib/node_modules/sails/node_modules/sails-hook-sockets/lib/receive-incoming-sails-io-msg.js:41:14)\n at Socket.<anonymous> (/usr/local/node-v0.12.4-linux-x64/lib/node_modules/sails/node_modules/sails-hook-sockets/lib/on-connect.js:84:9)\n at Socket.emit (events.js:107:17)\n at Socket.onevent (/usr/local/node-v0.12.4-linux-x64/lib/node_modules/sails/node_modules/sails-hook-sockets/node_modules/socket.io/lib/socket.js:330:8)\n at Socket.onpacket (/usr/local/node-v0.12.4-linux-x64/lib/node_modules/sails/node_modules/sails-hook-sockets/node_modules/socket.io/lib/socket.js:290:12)\n at Client.ondecoded (/usr/local/node-v0.12.4-linux-x64/lib/node_modules/sails/node_modules/sails-hook-sockets/node_modules/socket.io/lib/client.js:193:14)\n at Decoder.Emitter.emit (/usr/local/node-v0.12.4-linux-x64/lib/node_modules/sails/node_modules/sails-hook-sockets/node_modules/socket.io/node_modules/socket.io-parser/node_modules/component-emitter/index.js:134:20)\n at Decoder.add (/usr/local/node-v0.12.4-linux-x64/lib/node_modules/sails/node_modules/sails-hook-sockets/node_modules/socket.io/node_modules/socket.io-parser/index.js:247:12)\n at Client.ondata (/usr/local/node-v0.12.4-linux-x64/lib/node_modules/sails/node_modules/sails-hook-sockets/node_modules/socket.io/lib/client.js:175:18)\n at Socket.emit (events.js:107:17)\n at Socket.onPacket (/usr/local/node-v0.12.4-linux-x64/lib/node_modules/sails/node_modules/sails-hook-sockets/node_modules/socket.io/node_modules/engine.io/lib/socket.js:99:14)\n at WebSocket.emit (events.js:129:20)\n at WebSocket.Transport.onPacket (/usr/local/node-v0.12.4-linux-x64/lib/node_modules/sails/node_modules/sails-hook-sockets/node_modules/socket.io/node_modules/engine.io/lib/transport.js:91:8)', 
    details: 'No url provided in request: [object Object]' } 

这是我的Android客户端：

JSONArray arr = new JSONArray(); 
JSONObject obj = new JSONObject(); 
try { 
    obj.put("url", "/user/new"); 
} catch (JSONException e) { 
    e.printStackTrace(); 
} 
arr.put(obj); 
socket.emit("get", arr); 

Answer 1

在对象已构造发出来服务器，跳过JSONArray包装应该解决这个问题。将代码更改为：

JSONObject obj = new JSONObject(); 
try { 
    obj.put("url", "/user/new"); 
} catch (JSONException e) { 
    e.printStackTrace(); 
} 
socket.emit("get", obj); 

如果问题仍然存在，还有另一个可以查看的区域。

如果客户端ID低于0.11.0，Socket-io将面临解析虚拟请求的问题。修复此问题的方法是编辑parse-sdk-metadata.js文件，该文件可在/node_modules/sails-hook-sockets/lib/或/node_modules/sails/node_modules/sails-hook-sockets/lib/中找到，具体取决于您的NPM版本。

在这里面，更改以下：

if (!(handshake.headers[SDK_META_PARAMS.version] || handshake.query[SDK_META_PARAMS.version])) { 
      handshake.query[SDK_META_PARAMS.version] = '0.9.0'; 
} 

TO：

if (!(handshake.headers[SDK_META_PARAMS.version] || handshake.query[SDK_META_PARAMS.version])) { 
      handshake.query[SDK_META_PARAMS.version] = '0.11.0'; 
} 

这应该解决您收到Error (SAILS:HOOK:SOCKETS:PARSE_VIRTUAL_REQ)！