Socket.IO：Swift 客户端连接到 Node.js 服务器但服务器不会注册连接？

分类：编程问答

如何解决Socket.IO：Swift 客户端连接到 Node.js 服务器但服务器不会注册连接？

所以我遇到了一个问题，我的 Swift/Xcode 东西告诉我我已经连接到服务器，而我的节点文件没有告诉我终端中的“用户已连接”，这是一种重新发布但我没有很好地构建原始问题，因此没有得到答复。

我的节点文件看起来像：

const express = require('express');
const app = express();
const http = require('http').Server(app);
const io = require('socket.io')(http);
const port = process.env.PORT || 3000;

app.use(express.static(__dirname + '/public'));

function onConnection(socket){
  console.log('a user connected');
  socket.on('disconnect',onDisconnection);
}

function onDisconnection(socket){
  console.log('a user disconnected');
}

io.on('connection',onConnection);

http.listen(port,() => console.log('listening on port ' + port));

我的 Swift 看起来像：

class PDSocketManager: NSObject {

class var shared: PDSocketManager {
    struct Static{
        static let instance = PDSocketManager()
    }
    return Static.instance
}

var socket: SocketIOClient?
fileprivate var manager: SocketManager?

fileprivate override init(){}

func establishConnection(_ completion: (() -> Void)? = nil) {
    let socketUrlString: String = "http://ip-address:3000"
    self.manager = SocketManager(socketURL: URL(string: socketUrlString)!,config: [.log(true),.reconnects(true),.extraHeaders(["header": "customheader"])])
    self.socket = manager?.defaultSocket
    self.socket?.connect()

    self.socket?.once(clientEvent: .connect,callback: { (data,emitter) in
        print("\n\n\n connection done!! \n\n\n")
        if completion != nil{
            completion!()
        }
    })
}

func connect()  {
    socket?.connect()
    print("socket connect")
}

func disconnect()  {
    socket?.disconnect()
}

func checkSocktConnect() -> Bool {
    if let myManager = self.manager{
        if myManager.status == SocketIOStatus.connected{
          return true
        } else {
            self.socket?.connect()
            return false
        }
    } else{
        return false
    }
    } }

这是 XCode 日志输出：

2021-03-02 08:47:41.669119-0500 sockettest[992:1229560] LOG SocketIOClient{/}: Handling event: statusChange with data: [connecting,2]
2021-03-02 08:47:41.669315-0500 sockettest[992:1229560] LOG SocketIOClient{/}: Joining namespace /
2021-03-02 08:47:41.669392-0500 sockettest[992:1229560] LOG SocketManager: Tried connecting socket when engine isn't open. Connecting
2021-03-02 08:47:41.669435-0500 sockettest[992:1229560] LOG SocketManager: Adding engine
2021-03-02 08:47:41.672334-0500 sockettest[992:1229560] LOG SocketIOClient{/}: Adding once handler for event: connect
2021-03-02 08:47:41.672357-0500 sockettest[992:1229845] LOG SocketEngine: Starting engine. Server: http://ip-address:3000/
2021-03-02 08:47:41.672444-0500 sockettest[992:1229845] LOG SocketEngine: Handshaking
2021-03-02 08:47:41.697783-0500 sockettest[992:1229845] LOG SocketEnginePolling: Doing polling GET http://ip-address:3000/socket.io/?transport=polling&b64=1
2021-03-02 08:47:41.877242-0500 sockettest[992:1229843] LOG SocketEnginePolling: Got polling response
2021-03-02 08:47:41.877321-0500 sockettest[992:1229843] LOG SocketEnginePolling: Got poll message: 0{"sid":"jNuRNaYlTU1zFzXAAAAA","upgrades":["websocket"],"pingInterval":25000,"pingTimeout":5000}
2021-03-02 08:47:41.879715-0500 sockettest[992:1229843] LOG SocketEngine: Got message: 0{"sid":"jNuRNaYlTU1zFzXAAAAA","pingTimeout":5000}
2021-03-02 08:47:41.886369-0500 sockettest[992:1229560] LOG SocketIOClient{/}: Handling event: ping with data: []
2021-03-02 08:47:41.886399-0500 sockettest[992:1229843] LOG SocketEnginePolling: Doing polling GET http://ip-address:3000/socket.io/?transport=polling&b64=1&sid=jNuRNaYlTU1zFzXAAAAA
2021-03-02 08:47:41.886459-0500 sockettest[992:1229560] LOG SocketManager: Engine opened Connect
2021-03-02 08:47:41.886712-0500 sockettest[992:1229560] LOG SocketIOClient{/}: Socket connected
2021-03-02 08:47:41.886870-0500 sockettest[992:1229560] LOG SocketIOClient{/}: Handling event: statusChange with data: [connected,3]
2021-03-02 08:47:41.887384-0500 sockettest[992:1229560] LOG SocketIOClient{/}: Handling event: connect with data: ["/"]
2021-03-02 08:47:41.888137-0500 sockettest[992:1229560] LOG SocketIOClient{/}: Removing handler with id: 05D5AFD6-5108-4EBB-A774-FB350D145FDA
2021-03-02 08:47:41.888195-0500 sockettest[992:1229843] LOG SocketEngine: Writing poll:  has data: false



 connection done!! 



2021-03-02 08:47:41.888598-0500 sockettest[992:1229843] LOG SocketEnginePolling: Sending poll:  as type: 2
2021-03-02 08:47:41.888905-0500 sockettest[992:1229843] LOG SocketEnginePolling: Created POST string: 1:2
2021-03-02 08:47:41.889085-0500 sockettest[992:1229843] LOG SocketEnginePolling: POSTing
2021-03-02 08:47:41.889134-0500 sockettest[992:1229843] LOG SocketEnginePolling: Doing polling POST http://ip-address:3000/socket.io/?transport=polling&b64=1&sid=jNuRNaYlTU1zFzXAAAAA
2021-03-02 08:47:41.900166-0500 sockettest[992:1229845] LOG SocketEngineWebSocket: Sending ws: probe as type: 2
2021-03-02 08:47:41.900316-0500 sockettest[992:1229560] LOG SocketIOClient{/}: Handling event: websocketUpgrade with data: [["sec-websocket-accept": "3ydGn/18kSKfrJyp/ElciaZtQPI=","upgrade": "websocket","connection": "Upgrade"]]
2021-03-02 08:47:41.905261-0500 sockettest[992:1229840] LOG SocketEngine: Flushing probe wait
2021-03-02 08:47:41.906380-0500 sockettest[992:1229847] LOG SocketEnginePolling: Got polling response
2021-03-02 08:47:41.906615-0500 sockettest[992:1229847] LOG SocketEnginePolling: Doing polling GET http://ip-address:3000/socket.io/?transport=polling&b64=1&sid=jNuRNaYlTU1zFzXAAAAA
2021-03-02 08:47:41.914247-0500 sockettest[992:1229845] ERROR SocketEnginePolling: Error during long poll request
2021-03-02 08:47:41.914306-0500 sockettest[992:1229845] ERROR SocketEngine: Error
2021-03-02 08:47:41.914378-0500 sockettest[992:1229560] ERROR SocketManager: Error
2021-03-02 08:47:41.914382-0500 sockettest[992:1229845] LOG SocketEngine: Engine is being closed.
2021-03-02 08:47:41.914430-0500 sockettest[992:1229845] LOG SocketEnginePolling: Created POST string: 1:1
2021-03-02 08:47:41.914436-0500 sockettest[992:1229560] LOG SocketIOClient{/}: Handling event: error with data: ["Error"]
2021-03-02 08:47:41.914626-0500 sockettest[992:1229845] LOG SocketEnginePolling: Doing polling POST http://ip-address:3000/socket.io/?transport=polling&b64=1&sid=jNuRNaYlTU1zFzXAAAAA
2021-03-02 08:47:41.915164-0500 sockettest[992:1229560] LOG SocketManager: Starting reconnect
2021-03-02 08:47:41.915268-0500 sockettest[992:1229560] LOG SocketIOClient{/}: Handling event: statusChange with data: [connecting,2]
2021-03-02 08:47:41.915373-0500 sockettest[992:1229560] LOG SocketIOClient{/}: Handling event: reconnect with data: ["Error"]
2021-03-02 08:47:41.915468-0500 sockettest[992:1229560] LOG SocketManager: Trying to reconnect
2021-03-02 08:47:41.915559-0500 sockettest[992:1229560] LOG SocketIOClient{/}: Handling event: reconnectAttempt with data: [-1]
2021-03-02 08:47:41.915747-0500 sockettest[992:1229844] LOG SocketEngine: Starting engine. Server: http://ip-address:3000/
2021-03-02 08:47:41.915920-0500 sockettest[992:1229844] LOG SocketEngine: Handshaking
2021-03-02 08:47:41.916043-0500 sockettest[992:1229844] LOG SocketEnginePolling: Doing polling GET http://ip-address:3000/socket.io/?transport=polling&b64=1
2021-03-02 08:47:41.916365-0500 sockettest[992:1229560] LOG SocketManager: Scheduling reconnect in 22.380244474166073s
2021-03-02 08:47:41.931050-0500 sockettest[992:1229845] LOG SocketEnginePolling: Got polling response
2021-03-02 08:47:41.931126-0500 sockettest[992:1229845] LOG SocketEnginePolling: Got poll message: 0{"sid":"GncBvYHRVuwBwT4qAAAB","pingTimeout":5000}
2021-03-02 08:47:41.931198-0500 sockettest[992:1229845] LOG SocketEngine: Got message: 0{"sid":"GncBvYHRVuwBwT4qAAAB","pingTimeout":5000}
2021-03-02 08:47:41.932181-0500 sockettest[992:1229560] LOG SocketIOClient{/}: Handling event: ping with data: []
2021-03-02 08:47:41.932231-0500 sockettest[992:1229845] LOG SocketEnginePolling: Doing polling GET http://ip-address:3000/socket.io/?transport=polling&b64=1&sid=GncBvYHRVuwBwT4qAAAB
2021-03-02 08:47:41.932235-0500 sockettest[992:1229560] LOG SocketManager: Engine opened Connect
2021-03-02 08:47:41.932271-0500 sockettest[992:1229560] LOG SocketIOClient{/}: Socket connected
2021-03-02 08:47:41.932314-0500 sockettest[992:1229560] LOG SocketIOClient{/}: Handling event: statusChange with data: [connected,3]
2021-03-02 08:47:41.932393-0500 sockettest[992:1229560] LOG SocketIOClient{/}: Handling event: connect with data: ["/"]
2021-03-02 08:47:41.932697-0500 sockettest[992:1229845] LOG SocketEngine: Writing poll:  has data: false
2021-03-02 08:47:41.932972-0500 sockettest[992:1229845] LOG SocketEnginePolling: Sending poll:  as type: 2
2021-03-02 08:47:41.933028-0500 sockettest[992:1229845] LOG SocketEnginePolling: Created POST string: 1:2
2021-03-02 08:47:41.933490-0500 sockettest[992:1229845] LOG SocketEnginePolling: POSTing
2021-03-02 08:47:41.933547-0500 sockettest[992:1229845] LOG SocketEnginePolling: Doing polling POST http://ip-address:3000/socket.io/?transport=polling&b64=1&sid=GncBvYHRVuwBwT4qAAAB
2021-03-02 08:47:41.942594-0500 sockettest[992:1229560] LOG SocketIOClient{/}: Handling event: websocketUpgrade with data: [["connection": "Upgrade","sec-websocket-accept": "pa1QhnQkCVWnN+kL1zMm+z0mEX4="]]
2021-03-02 08:47:41.942612-0500 sockettest[992:1229844] LOG SocketEngineWebSocket: Sending ws: probe as type: 2
2021-03-02 08:47:41.944832-0500 sockettest[992:1229840] LOG SocketEnginePolling: Got polling response
2021-03-02 08:47:41.945680-0500 sockettest[992:1229840] LOG SocketEnginePolling: Doing polling GET http://ip-address:3000/socket.io/?transport=polling&b64=1&sid=GncBvYHRVuwBwT4qAAAB
2021-03-02 08:47:41.946001-0500 sockettest[992:1229840] LOG SocketEngine: Flushing probe wait
2021-03-02 08:47:41.951337-0500 sockettest[992:1229845] ERROR SocketEnginePolling: Error during long poll request
2021-03-02 08:47:41.951418-0500 sockettest[992:1229845] ERROR SocketEngine: Error
2021-03-02 08:47:41.951495-0500 sockettest[992:1229560] ERROR SocketManager: Error
2021-03-02 08:47:41.951551-0500 sockettest[992:1229560] LOG SocketIOClient{/}: Handling event: error with data: ["Error"]
2021-03-02 08:47:41.951683-0500 sockettest[992:1229845] LOG SocketEngine: Engine is being closed.
2021-03-02 08:47:41.951744-0500 sockettest[992:1229845] LOG SocketEnginePolling: Created POST string: 1:1
2021-03-02 08:47:41.952027-0500 sockettest[992:1229845] LOG SocketEnginePolling: Doing polling POST http://ip-address:3000/socket.io/?transport=polling&b64=1&sid=GncBvYHRVuwBwT4qAAAB
2021-03-02 08:47:41.952431-0500 sockettest[992:1229560] LOG SocketManager: Starting reconnect
2021-03-02 08:47:41.952545-0500 sockettest[992:1229560] LOG SocketIOClient{/}: Handling event: statusChange with data: [connecting,2]
2021-03-02 08:47:41.952657-0500 sockettest[992:1229560] LOG SocketIOClient{/}: Handling event: reconnect with data: ["Error"]
2021-03-02 08:47:41.952759-0500 sockettest[992:1229560] LOG SocketManager: Trying to reconnect
2021-03-02 08:47:41.952856-0500 sockettest[992:1229560] LOG SocketIOClient{/}: Handling event: reconnectAttempt with data: [-1]
2021-03-02 08:47:41.952988-0500 sockettest[992:1229560] LOG SocketManager: Scheduling reconnect in 17.378798001778488s
2021-03-02 08:47:41.953118-0500 sockettest[992:1229845] LOG SocketEngine: Starting engine. Server: http://ip-address:3000/
2021-03-02 08:47:41.953264-0500 sockettest[992:1229845] LOG SocketEngine: Handshaking
2021-03-02 08:47:41.953632-0500 sockettest[992:1229845] LOG SocketEnginePolling: Doing polling GET http://ip-address:3000/socket.io/?transport=polling&b64=1
2021-03-02 08:47:41.967543-0500 sockettest[992:1229843] LOG SocketEnginePolling: Got polling response
2021-03-02 08:47:41.967609-0500 sockettest[992:1229843] LOG SocketEnginePolling: Got poll message: 0{"sid":"dGUd1NjkROAspt3hAAAC","pingTimeout":5000}
2021-03-02 08:47:41.967688-0500 sockettest[992:1229843] LOG SocketEngine: Got message: 0{"sid":"dGUd1NjkROAspt3hAAAC","pingTimeout":5000}
2021-03-02 08:47:41.968632-0500 sockettest[992:1229560] LOG SocketIOClient{/}: Handling event: ping with data: []
2021-03-02 08:47:41.968803-0500 sockettest[992:1229560] LOG SocketManager: Engine opened Connect
2021-03-02 08:47:41.968840-0500 sockettest[992:1229843] LOG SocketEnginePolling: Doing polling GET http://ip-address:3000/socket.io/?transport=polling&b64=1&sid=dGUd1NjkROAspt3hAAAC
2021-03-02 08:47:41.968850-0500 sockettest[992:1229560] LOG SocketIOClient{/}: Socket connected
2021-03-02 08:47:41.968952-0500 sockettest[992:1229560] LOG SocketIOClient{/}: Handling event: statusChange with data: [connected,3]
2021-03-02 08:47:41.969027-0500 sockettest[992:1229560] LOG SocketIOClient{/}: Handling event: connect with data: ["/"]
2021-03-02 08:47:41.969291-0500 sockettest[992:1229843] LOG SocketEngine: Writing poll:  has data: false
2021-03-02 08:47:41.969328-0500 sockettest[992:1229843] LOG SocketEnginePolling: Sending poll:  as type: 2
2021-03-02 08:47:41.969369-0500 sockettest[992:1229843] LOG SocketEnginePolling: Created POST string: 1:2
2021-03-02 08:47:41.970487-0500 sockettest[992:1229843] LOG SocketEnginePolling: POSTing
2021-03-02 08:47:41.970545-0500 sockettest[992:1229843] LOG SocketEnginePolling: Doing polling POST http://ip-address:3000/socket.io/?transport=polling&b64=1&sid=dGUd1NjkROAspt3hAAAC
2021-03-02 08:47:41.979132-0500 sockettest[992:1229560] LOG SocketIOClient{/}: Handling event: websocketUpgrade with data: [["connection": "Upgrade","sec-websocket-accept": "qXRyRflDO2o0fPGslzplhreoK+8="]]
2021-03-02 08:47:41.979201-0500 sockettest[992:1229844] LOG SocketEngineWebSocket: Sending ws: probe as type: 2
2021-03-02 08:47:41.983692-0500 sockettest[992:1229845] LOG SocketEngine: Got message: 3probe
2021-03-02 08:47:41.983814-0500 sockettest[992:1229845] LOG SocketEngine: Received probe response,should upgrade to WebSockets
2021-03-02 08:47:41.983862-0500 sockettest[992:1229845] LOG SocketEngine: Upgrading transport to WebSockets
2021-03-02 08:47:41.983904-0500 sockettest[992:1229845] LOG SocketEnginePolling: Sending poll:  as type: 6
2021-03-02 08:47:41.984048-0500 sockettest[992:1229560] LOG SocketIOClient{/}: Handling event: pong with data: []
2021-03-02 08:47:41.985388-0500 sockettest[992:1229840] LOG SocketEnginePolling: Got polling response
2021-03-02 08:47:41.985457-0500 sockettest[992:1229840] LOG SocketEngine: Switching to WebSockets
2021-03-02 08:47:41.985503-0500 sockettest[992:1229840] LOG SocketEngineWebSocket: Sending ws:  as type: 5
2021-03-02 08:47:41.985545-0500 sockettest[992:1229840] LOG SocketEngine: Flushing probe wait
2021-03-02 08:47:41.986551-0500 sockettest[992:1229840] ERROR SocketEngine: connection closed by server. code=1000,type=protocolError
2021-03-02 08:47:41.986866-0500 sockettest[992:1229560] ERROR SocketManager: connection closed by server. code=1000,type=protocolError
2021-03-02 08:47:41.987293-0500 sockettest[992:1229560] LOG SocketIOClient{/}: Handling event: error with data: ["connection closed by server. code=1000,type=protocolError"]
2021-03-02 08:47:41.987443-0500 sockettest[992:1229560] LOG SocketManager: Starting reconnect
2021-03-02 08:47:41.987494-0500 sockettest[992:1229560] LOG SocketIOClient{/}: Handling event: statusChange with data: [connecting,2]
2021-03-02 08:47:41.987556-0500 sockettest[992:1229560] LOG SocketIOClient{/}: Handling event: reconnect with data: ["connection closed by server. code=1000,type=protocolError"]
2021-03-02 08:47:41.987605-0500 sockettest[992:1229560] LOG SocketManager: Trying to reconnect
2021-03-02 08:47:41.987676-0500 sockettest[992:1229560] LOG SocketIOClient{/}: Handling event: reconnectAttempt with data: [-1]
2021-03-02 08:47:41.987783-0500 sockettest[992:1229560] LOG SocketManager: Scheduling reconnect in 21.743261523169984s
2021-03-02 08:47:41.987783-0500 sockettest[992:1229850] LOG SocketEngine: Starting engine. Server: http://ip-address:3000/
2021-03-02 08:47:41.988147-0500 sockettest[992:1229850] LOG SocketEngine: Handshaking
2021-03-02 08:47:41.988303-0500 sockettest[992:1229850] LOG SocketEnginePolling: Doing polling GET http://ip-address:3000/socket.io/?transport=polling&b64=1
2021-03-02 08:47:42.005212-0500 sockettest[992:1229843] LOG SocketEnginePolling: Got polling response
2021-03-02 08:47:42.005291-0500 sockettest[992:1229843] LOG SocketEnginePolling: Got poll message: 0{"sid":"S0NLdRPF5uCHUoKaAAAD","pingTimeout":5000}
2021-03-02 08:47:42.005704-0500 sockettest[992:1229843] LOG SocketEngine: Got message: 0{"sid":"S0NLdRPF5uCHUoKaAAAD","pingTimeout":5000}
2021-03-02 08:47:42.006542-0500 sockettest[992:1229560] LOG SocketIOClient{/}: Handling event: ping with data: []
2021-03-02 08:47:42.006648-0500 sockettest[992:1229560] LOG SocketManager: Engine opened Connect
2021-03-02 08:47:42.006989-0500 sockettest[992:1229560] LOG SocketIOClient{/}: Socket connected
2021-03-02 08:47:42.007041-0500 sockettest[992:1229560] LOG SocketIOClient{/}: Handling event: statusChange with data: [connected,3]
2021-03-02 08:47:42.007084-0500 sockettest[992:1229560] LOG SocketIOClient{/}: Handling event: connect with data: ["/"]
2021-03-02 08:47:42.007179-0500 sockettest[992:1229843] LOG SocketEnginePolling: Doing polling GET http://ip-address:3000/socket.io/?transport=polling&b64=1&sid=S0NLdRPF5uCHUoKaAAAD
2021-03-02 08:47:42.009173-0500 sockettest[992:1229843] LOG SocketEngine: Writing poll:  has data: false
2021-03-02 08:47:42.009252-0500 sockettest[992:1229843] LOG SocketEnginePolling: Sending poll:  as type: 2
2021-03-02 08:47:42.009302-0500 sockettest[992:1229843] LOG SocketEnginePolling: Created POST string: 1:2
2021-03-02 08:47:42.009431-0500 sockettest[992:1229843] LOG SocketEnginePolling: POSTing
2021-03-02 08:47:42.009690-0500 sockettest[992:1229843] LOG SocketEnginePolling: Doing polling POST http://ip-address:3000/socket.io/?transport=polling&b64=1&sid=S0NLdRPF5uCHUoKaAAAD
2021-03-02 08:47:42.021928-0500 sockettest[992:1229560] LOG SocketIOClient{/}: Handling event: websocketUpgrade with data: [["upgrade": "websocket","sec-websocket-accept": "/i3oWtmlG0z06qeeQyi4FPgnkvI=","connection": "Upgrade"]]
2021-03-02 08:47:42.022166-0500 sockettest[992:1229850] LOG SocketEngineWebSocket: Sending ws: probe as type: 2
2021-03-02 08:47:42.026699-0500 sockettest[992:1229845] LOG SocketEngine: Got message: 3probe
2021-03-02 08:47:42.026815-0500 sockettest[992:1229845] LOG SocketEngine: Received probe response,should upgrade to WebSockets
2021-03-02 08:47:42.026860-0500 sockettest[992:1229845] LOG SocketEngine: Upgrading transport to WebSockets
2021-03-02 08:47:42.026905-0500 sockettest[992:1229845] LOG SocketEnginePolling: Sending poll:  as type: 6
2021-03-02 08:47:42.026992-0500 sockettest[992:1229560] LOG SocketIOClient{/}: Handling event: pong with data: []
2021-03-02 08:47:42.029955-0500 sockettest[992:1229850] LOG SocketEngine: Flushing probe wait
2021-03-02 08:47:42.031221-0500 sockettest[992:1229845] LOG SocketEnginePolling: Got polling response
2021-03-02 08:47:42.031283-0500 sockettest[992:1229845] LOG SocketEngine: Switching to WebSockets
2021-03-02 08:47:42.031324-0500 sockettest[992:1229845] LOG SocketEngineWebSocket: Sending ws:  as type: 5
2021-03-02 08:47:42.031366-0500 sockettest[992:1229845] LOG SocketEngine: Flushing probe wait
2021-03-02 08:48:09.377870-0500 sockettest[992:1229843] LOG SocketEngine: Writing ws:  has data: false
2021-03-02 08:48:09.377870-0500 sockettest[992:1229560] LOG SocketIOClient{/}: Handling event: ping with data: []
2021-03-02 08:48:09.378081-0500 sockettest[992:1229843] LOG SocketEngineWebSocket: Sending ws:  as type: 2

解决方法

你必须在 Xcode 中删除它：

.version(.two)

当您设置 SocketManager 时。然后它就可以工作了。

我认为它不起作用是因为服务器上的 Socket.io 版本。我认为您在服务器端使用 version3，在客户端使用 version2（默认为 version 3），因此它们不会一起通信。

您必须像这样更新您的 Pod：

pod 'Socket.IO-Client-Swift'

然后 pod 安装

版权声明：本文内容由互联网用户自发贡献，该文观点与技术仅代表作者本人。本站仅提供信息存储空间服务，不拥有所有权，不承担相关法律责任。如发现本站有涉嫌侵权/违法违规的内容， 请发送邮件至 dio@foxmail.com 举报，一经查实，本站将立刻删除。

相关推荐

导入项目后报错问题
依赖报错 idea导入项目后依赖报错，解决方案：https://blog.csdn.net/weixin_42420249/article/details/81191861 依赖版本报错：更换其他版本 无法下载依赖可参考：https://blog.csdn.net/weixin_42628809/a
idea不能识别yaml文件
使用mybatis plus常见错误
错误1：代码生成器依赖和mybatis依赖冲突 启动项目时报错如下 2021-12-03 13:33:33.927 ERROR 7228 [ main] o.s.b.d.LoggingFailureAnalysisReporter : *************************** APPL
gradle常见问题与错误
错误1：gradle项目控制台输出为乱码 # 解决方案：https://blog.csdn.net/weixin_43501566/article/details/112482302 # 在gradle-wrapper.properties 添加以下内容 org.gradle.jvmargs=-Df
Mybatis Plus传入参数0不起作用
错误还原：在查询的过程中，传入的workType为0时，该条件不起作用 <select id="xxx"> SELECT di.id, di.name, di.work_type, di.updated... <where> <if test=&qu
linux中make编译源码包失败
报错如下，gcc版本太低 ^ server.c:5346:31: 错误：‘struct redisServer’没有名为‘server_cpulist’的成员 redisSetCpuAffinity(server.server_cpulist); ^ server.c: 在函数‘hasActiveC
微服务启动错误：Command line is too long. Shorten command line for
解决方案1 1、改项目中.idea/workspace.xml配置文件，增加dynamic.classpath参数 2、搜索PropertiesComponent，添加如下 <property name="dynamic.classpath" value="tru
vue常见错误
删除根组件app.vue中的默认代码后报错：Module Error (from ./node_modules/eslint-loader/index.js): 解决方案：关闭ESlint代码检测，在项目根目录创建vue.config.js，在文件中添加 module.exports = { lin
spark常见错误
查看spark默认的python版本 [root@master day27]# pyspark /home/software/spark-2.3.4-bin-hadoop2.7/conf/spark-env.sh: line 2: /usr/local/hadoop/bin/hadoop: No s
matplotlib报错：AttributeError: module 'backend_interagg' has no attribute 'FigureCanvas'. Did you mean: 'FigureCanvasAgg'?
使用本地python环境可以成功执行 import pandas as pd import matplotlib.pyplot as plt # 设置字体 plt.rcParams['font.sans-serif'] = ['SimHei'] # 能正确显示负号 p
gitlab登录失败，报错：This challenge page was accidentally cached by an intermediary and is no longer available.
设置时间 控制面板
后端开发常见错误
错误1：Request method ‘DELETE‘ not supported 错误还原：controller层有一个接口，访问该接口时报错：Request method ‘DELETE‘ not supported 错误原因：没有接收到前端传入的参数，修改为如下 参考 错误2：cannot r
docker常见错误
错误1：启动docker镜像时报错：Error response from daemon: driver failed programming external connectivity on endpoint quirky_allen 解决方法：重启docker -> systemctl r
idea常见错误
错误1：private field ‘xxx‘ is never assigned 按Altʾnter快捷键，选择第2项 参考：https://blog.csdn.net/shi_hong_fei_hei/article/details/88814070 错误2：启动时报错，不能找到主启动类 #
pip安装依赖失败
报错如下，通过源不能下载，最后警告pip需升级版本 Requirement already satisfied: pip in c:\users\ychen\appdata\local\programs\python\python310\lib\site-packages (22.0.4) Coll
maven常见错误
错误1：maven打包报错 错误还原：使用maven打包项目时报错如下 [ERROR] Failed to execute goal org.apache.maven.plugins:maven-resources-plugin:3.2.0:resources (default-resources)
cloud项目中常见错误
错误1：服务调用时报错 服务消费者模块assess通过openFeign调用服务提供者模块hires 如下为服务提供者模块hires的控制层接口 @RestController @RequestMapping("/hires") public class FeignControl
springboot常见错误
错误1：运行项目后报如下错误 解决方案 报错2：Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.8.1:compile (default-compile) on project sb 解决方案：在pom.
springmvc拦截器中使用redisTemplate报空指针异常
参考 错误原因 过滤器或拦截器在生效时，redisTemplate还没有注入 解决方案：在注入容器时就生效 @Component //项目运行时就注入Spring容器 public class RedisBean { @Resource private RedisTemplate<String
vite报错：npm ERR! command C:WINDOWSsystem32cmd.exe /d /s /c C:UsersychenAppDataLocalTempnpx-dde1c848.cmd
使用vite构建项目报错 C:\Users\ychen\work>npm init @vitejs/app @vitejs/create-app is deprecated, use npm init vite instead C:\Users\ychen\AppData\Local\npm-
pythonJavaScriptjavaHTMLPHPreactjsC#AndroidCSSNode.jssqlrpython-3.xMysqLjQueryc++pandasFlutterangularIOSdjangolinuxswifttypescript路由器JSON路由器设置无线路由器h3c华三华三路由器设置华三路由器电脑软件教程arraysdocker软件图文教程Cvue.jslaravelspring-boot