TypeError: db.collection is not a function

2022-05-16 00:11 221阅读 0赞

1、错误描述

F:\nodejs>node insertData.js
    (node:10028) DeprecationWarning: current URL string parser is deprecated, and wi
    ll be removed in a future version. To use the new parser, pass option { useNewUr
    lParser: true } to MongoClient.connect.
    ���ӳɹ���
    F:\nodejs\node_modules\_mongodb@3.1.1@mongodb\lib\operations\mongo_client_ops.js
    :439
          throw err;
          ^
    
    TypeError: db.collection is not a function
        at writeData (F:\nodejs\insertData.js:5:22)
        at F:\nodejs\insertData.js:19:2
        at result (F:\nodejs\node_modules\_mongodb@3.1.1@mongodb\lib\utils.js:414:17
    )
        at executeCallback (F:\nodejs\node_modules\_mongodb@3.1.1@mongodb\lib\utils.
    js:406:9)
        at err (F:\nodejs\node_modules\_mongodb@3.1.1@mongodb\lib\operations\mongo_c
    lient_ops.js:285:5)
        at connectCallback (F:\nodejs\node_modules\_mongodb@3.1.1@mongodb\lib\operat
    ions\mongo_client_ops.js:240:5)
        at process.nextTick (F:\nodejs\node_modules\_mongodb@3.1.1@mongodb\lib\opera
    tions\mongo_client_ops.js:436:7)
        at process._tickCallback (internal/process/next_tick.js:61:11)
    
    F:\nodejs>node insertData.js
    (node:4900) DeprecationWarning: current URL string parser is deprecated, and wil
    l be removed in a future version. To use the new parser, pass option { useNewUrl
    Parser: true } to MongoClient.connect.
    ���ӳɹ���
    F:\nodejs\node_modules\_mongodb@3.1.1@mongodb\lib\operations\mongo_client_ops.js
    :439
          throw err;
          ^
    
    TypeError: collection.insert is not a function
        at writeData (F:\nodejs\insertData.js:7:13)
        at F:\nodejs\insertData.js:19:2
        at result (F:\nodejs\node_modules\_mongodb@3.1.1@mongodb\lib\utils.js:414:17
    )
        at executeCallback (F:\nodejs\node_modules\_mongodb@3.1.1@mongodb\lib\utils.
    js:406:9)
        at err (F:\nodejs\node_modules\_mongodb@3.1.1@mongodb\lib\operations\mongo_c
    lient_ops.js:285:5)
        at connectCallback (F:\nodejs\node_modules\_mongodb@3.1.1@mongodb\lib\operat
    ions\mongo_client_ops.js:240:5)
        at process.nextTick (F:\nodejs\node_modules\_mongodb@3.1.1@mongodb\lib\opera
    tions\mongo_client_ops.js:436:7)
        at process._tickCallback (internal/process/next_tick.js:61:11)
    
    F:\nodejs>node insertData.js
    (node:9572) DeprecationWarning: current URL string parser is deprecated, and wil
    l be removed in a future version. To use the new parser, pass option { useNewUrl
    Parser: true } to MongoClient.connect.
    ���ӳɹ���
    F:\nodejs\node_modules\_mongodb@3.1.1@mongodb\lib\operations\mongo_client_ops.js
    :439
          throw err;
          ^
    
    TypeError: collection.insertOne is not a function
        at writeData (F:\nodejs\insertData.js:7:13)
        at F:\nodejs\insertData.js:19:2
        at result (F:\nodejs\node_modules\_mongodb@3.1.1@mongodb\lib\utils.js:414:17
    )
        at executeCallback (F:\nodejs\node_modules\_mongodb@3.1.1@mongodb\lib\utils.
    js:406:9)
        at err (F:\nodejs\node_modules\_mongodb@3.1.1@mongodb\lib\operations\mongo_c
    lient_ops.js:285:5)
        at connectCallback (F:\nodejs\node_modules\_mongodb@3.1.1@mongodb\lib\operat
    ions\mongo_client_ops.js:240:5)
        at process.nextTick (F:\nodejs\node_modules\_mongodb@3.1.1@mongodb\lib\opera
    tions\mongo_client_ops.js:436:7)
        at process._tickCallback (internal/process/next_tick.js:61:11)
    
    F:\nodejs>node insertData.js
    (node:10664) DeprecationWarning: current URL string parser is deprecated, and wi
    ll be removed in a future version. To use the new parser, pass option { useNewUr
    lParser: true } to MongoClient.connect.
    ���ӳɹ���
    ����MongoError: doc parameter must be an object
    ^C
    F:\nodejs>node insertData.js
    (node:10308) DeprecationWarning: current URL string parser is deprecated, and wi
    ll be removed in a future version. To use the new parser, pass option { useNewUr
    lParser: true } to MongoClient.connect.
    ���ӳɹ���
    CommandResult {
      result: { n: 1, ok: 1 },
      connection:
       Connection {
         _events:
          { error: [Function],
            close: [Function],
            timeout: [Function],
            parseError: [Function] },
         _eventsCount: 4,
         _maxListeners: undefined,
         options:
          { host: 'localhost',
            port: 27017,
            size: 5,
            minSize: 0,
            connectionTimeout: 30000,
            socketTimeout: 360000,
            keepAlive: true,
            keepAliveInitialDelay: 300000,
            noDelay: true,
            ssl: false,
            checkServerIdentity: true,
            ca: null,
            crl: null,
            cert: null,
            key: null,
            passPhrase: null,
            rejectUnauthorized: false,
            promoteLongs: true,
            promoteValues: true,
            promoteBuffers: false,
            reconnect: true,
            reconnectInterval: 1000,
            reconnectTries: 30,
            domainsEnabled: false,
            disconnectHandler: [Store],
            cursorFactory: [Function],
            emitError: true,
            monitorCommands: false,
            socketOptions: {},
            promiseLibrary: [Function: Promise],
            clientInfo: [Object],
            read_preference_tags: null,
            readPreference: [ReadPreference],
            dbName: 'student',
            servers: [Array],
            server_options: [Object],
            db_options: [Object],
            rs_options: [Object],
            mongos_options: [Object],
            socketTimeoutMS: 360000,
            connectTimeoutMS: 30000,
            bson: BSON {} },
         id: 0,
         logger: Logger { className: 'Connection' },
         bson: BSON {},
         tag: undefined,
         messageHandler: [Function],
         maxBsonMessageSize: 67108864,
         port: 27017,
         host: 'localhost',
         family: undefined,
         keepAlive: true,
         keepAliveInitialDelay: 300000,
         noDelay: true,
         connectionTimeout: 30000,
         socketTimeout: 360000,
         destroyed: false,
         domainSocket: false,
         singleBufferSerializtion: true,
         serializationFunction: 'toBinUnified',
         ca: null,
         crl: null,
         cert: null,
         key: null,
         passphrase: null,
         ciphers: null,
         ecdhCurve: null,
         ssl: false,
         rejectUnauthorized: false,
         checkServerIdentity: true,
         responseOptions:
          { promoteLongs: true,
            promoteValues: true,
            promoteBuffers: false },
         flushing: false,
         queue: [],
         connection:
          Socket {
            connecting: false,
            _hadError: false,
            _handle: [TCP],
            _parent: null,
            _host: 'localhost',
            _readableState: [ReadableState],
            readable: true,
            _events: [Object],
            _eventsCount: 5,
            _maxListeners: undefined,
            _writableState: [WritableState],
            writable: true,
            allowHalfOpen: false,
            _sockname: null,
            _pendingData: null,
            _pendingEncoding: '',
            server: null,
            _server: null,
            timeout: 360000,
            [Symbol(asyncId)]: 15,
            [Symbol(lastWriteQueueSize)]: 0,
            [Symbol(timeout)]: [Timeout],
            [Symbol(kBytesRead)]: 0,
            [Symbol(kBytesWritten)]: 0 },
         writeStream: null,
         hashedName: '29bafad3b32b11dc7ce934204952515ea5984b3c',
         workItems: [],
         buffer: null,
         sizeOfMessage: 0,
         bytesRead: 0,
         stubBuffer: null },
      message:
       Response {
         parsed: true,
         raw:
          <Buffer 3c 00 00 00 f0 02 00 00 02 00 00 00 01 00 00 00 08 00 00 00 00 00
    00 00 00 00 00 00 00 00 00 00 01 00 00 00 18 00 00 00 10 6e 00 01 00 00 00 01 6f
     6b ... >,
         data:
          <Buffer 08 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 01 00 00 00 18 00
    00 00 10 6e 00 01 00 00 00 01 6f 6b 00 00 00 00 00 00 00 f0 3f 00>,
         bson: BSON {},
         opts:
          { promoteLongs: true,
            promoteValues: true,
            promoteBuffers: false },
         length: 60,
         requestId: 752,
         responseTo: 2,
         opCode: 1,
         fromCompressed: undefined,
         responseFlags: 8,
         cursorId: Long { _bsontype: 'Long', low_: 0, high_: 0 },
         startingFrom: 0,
         numberReturned: 1,
         documents: [ [Object] ],
         cursorNotFound: false,
         queryFailure: false,
         shardConfigStale: false,
         awaitCapable: true,
         promoteLongs: true,
         promoteValues: true,
         promoteBuffers: false,
         index: 44,
         hashedName: '29bafad3b32b11dc7ce934204952515ea5984b3c' },
      ops:
       [ { name: 'zhangsan', age: '30', _id: 5b70f4bea602b02844490a15 } ],
      insertedCount: 1,
      insertedId: 5b70f4bea602b02844490a15 }
    
    F:\nodejs>

2、错误原因

在使用Node.js操作MongoDB数据库，想向里面插入数据记录，写了一个JavaScript文件，调用了collection函数，但是这个旧版本的方法，新版本的方法不是这个，换成db()。

3、解决办法