节点js猫鼬类型错误

Question

我想要在散列他的电子邮件后添加用户到数据库中。我创建了以下猫鼬模型。但是，我不断收到TypeError：keyStore.createUser不是一个函数。

const bcrypt = require('bcrypt-nodejs'); 
    const crypto = require('crypto'); 
    const mongoose = require('mongoose'); 

    const KeyStoreSchema = new mongoose.Schema({ 
     email: { type: String, unique: true }, 
     key: String, 
     endTime: Date 
     }); 

    module.exports.createUser = function (email, callback) { 
     bcrypt.genSalt(10, function (err, salt) { 
      bcrypt.hash(newUser.email, salt, function (err, hash) { 
       newUser.email = email; 
       newUser.key = hash; 
       var myDate = new Date("2 dec 2012 3:30:00"); // your date object 
       console.log('Created key for user'+ newUser.email +'at time:'+myDate); 
       // add 24 hours to the key 
       myDate.setHours(myDate.getHours() + 24) 
       newUser.endTime = myDate; 
       newUser.save(callback); 
      }); 
     }); 
    } 

    module.exports.getUserByUsername = function (email, callback) { 
     var query = { email: username }; 
     KeyStore.findOne(query, callback); 
    } 

    module.exports.getUserkey = function (email, callback) { 
     var query = { email:username } 
     KeyStore.findOne(query, 'key', callback); 
    } 

    const KeyStore = mongoose.model('KeyStore', KeyStoreSchema); 

    module.exports = KeyStore; 

Answer 1

终于可以解决了！这里是我做的修改让它工作..

const bcrypt = require('bcrypt-nodejs'); 
    const crypto = require('crypto'); 
    const mongoose = require('mongoose'); 

    const KeyStoreSchema = new mongoose.Schema({ 
     email: { type: String, unique: true }, 
     key: String, 
     endTime: Date 
     }); 

    KeyStoreSchema.methods.createUser = function createUser(email, callback) { 
     bcrypt.genSalt(10, function (err, salt) { 
      bcrypt.hash(newUser.email, salt, function (err, hash) { 
       newUser.email = email; 
       newUser.key = hash; 
       var myDate = new Date("2 dec 2012 3:30:00"); // your date object 
       console.log('Created key for user'+ newUser.email +'at time:'+myDate); 
       // add 24 hours to the key 
       myDate.setHours(myDate.getHours() + 24) 
       newUser.endTime = myDate; 
       newUser.save(callback); 
      }); 
     }); 
    }; 

    KeyStoreSchema.methods.getUserByUsername = function getUserByUsername(email, callback) { 
     var query = { email: username }; 
     KeyStore.findOne(query, callback); 
    }; 

    KeyStoreSchema.methods.getUserKey = function getUserKey(email, callback)  { 
     var query = { email:username } 
     KeyStore.findOne(query, 'key', callback); 
    }; 

    const KeyStore = mongoose.model('KeyStore', KeyStoreSchema); 

    module.exports = KeyStore; 

Answer 2

所以，你不能返回几个“module.exports”。 Module.exports只能用于一次，并且这将是您在需要JavaScript文件时返回的内容。所以，实际返回的是最后分配的东西：
const KeyStore = mongoose.model（'KeyStore'，KeyStoreSchema）;

你有2种选择：

选项1：使用出口，并没有在所有申报module.exports：

exports.createUser = function(){ 
    //logic 
} 

exports.getUserByUserName(){ 
    //logic 
} 

exports.getUserkey = function() { 
    //logic 
} 

... 

选项2：定义一个独立的结构，并返回从模块。出口：

var x = {}; 

x.createUser = function(){ 
    //logic 
} 

x.getUserByUserName = function(){ 
    //logic 
} 

x.getUserkey = function(){ 
    //logic 
} 

... 

module.exports = x;