Mongoose 举个简单的例子；承诺已在处理程序中创建，但未从中返回；

我看了这里的每一篇文章，但没有一篇是匹配的

使用最新来源

"mongoose": "^4.8.1"
"bluebird": "^3.4.7"

以猫鼬的方式使用蓝鸟

mongoose.Promise = require('bluebird');

“respHelper.resp…”调用时出错 其中Trader.Model是猫鼬模型“TraderModel=mongoose.Model（'Trader'，Trader）；”

完整堆栈跟踪：

(node:11912) Warning: a promise was created in a handler but was not returned from it, see goo.gl/rRqMUw
    at new Promise (d:\Projects\work\UCConnectAPI\server\node_modules\bluebird\js\release\promise.js:77:14)
    at Model.compile.model.Query.exec (d:\Projects\work\UCConnectAPI\server\node_modules\mongoose\lib\query.js:2536:17)
    at Model.compile.model.Query.Query.then (d:\Projects\work\UCConnectAPI\server\node_modules\mongoose\lib\query.js:2584:15)
    at module.exports.getTraderByAccount (d:\Projects\work\UCConnectAPI\server\app\controllers\controller_api_trader.js:25:4)
    at Layer.handle [as handle_request] (d:\Projects\work\UCConnectAPI\server\node_modules\express\lib\router\layer.js:95:5)
    at next (d:\Projects\work\UCConnectAPI\server\node_modules\express\lib\router\route.js:131:13)
    at Route.dispatch (d:\Projects\work\UCConnectAPI\server\node_modules\express\lib\router\route.js:112:3)
    at Layer.handle [as handle_request] (d:\Projects\work\UCConnectAPI\server\node_modules\express\lib\router\layer.js:95:5)
    at d:\Projects\work\UCConnectAPI\server\node_modules\express\lib\router\index.js:277:22
    at Function.process_params (d:\Projects\work\UCConnectAPI\server\node_modules\express\lib\router\index.js:330:12)
    at next (d:\Projects\work\UCConnectAPI\server\node_modules\express\lib\router\index.js:271:10)
    at d:\Projects\work\UCConnectAPI\server\app\lib\apitokenmanager.js:59:9
    at runCallback (timers.js:649:20)
    at tryOnImmediate (timers.js:622:5)
    at processImmediate [as _immediateCallback] (timers.js:594:5)
From previous event:
    at d:\Projects\work\UCConnectAPI\server\app\lib\apitokenmanager.js:53:43
    at d:\Projects\work\UCConnectAPI\server\node_modules\jsonwebtoken\verify.js:27:18
    at _combinedTickCallback (internal/process/next_tick.js:67:7)
    at process._tickCallback (internal/process/next_tick.js:98:9)

编辑：添加了TraderModel

var mongoose = require('mongoose');
var Schema = mongoose.Schema;

var Trader = new Schema({
  // Trader profile datas
  companyName: String,
  ustIdent: String,
  plz: String,
  city: String,
  country: String,
  street: String,
  streetNumber: String,
  contactPersonTechnical: String,
  contactPersonBilling: String,
  email: String,
  // Accounts für den Trader
  accounts: [
    {
      accountid: {type: Schema.Types.ObjectId, ref: 'Account'},
    // Rechte
      rights: {
        allowAddAccount: Boolean
      }
    }
  ],
  // Kunden des Traders
  customerids: [{type: Schema.Types.ObjectId, ref: 'Customer', index: true}],
  // Sub-Trader (untergeordnet)
  traderids: [{type: Schema.Types.ObjectId, ref: 'Trader', index: true}],
  // Haupttrader (übergeordnet)
  traderid: {type: String, trim: true, index: {unique: true}},
  created: {type: Date, default: Date.now()}, // im system angelegt am....
  changed: {type: Date, default: Date.now(), index: true} // geändet am...
});
Trader.set('toJSON', {getters: true, virtuals: false, depopulate: true});

Trader.methods.filterForPublic = function() {
  var tmpJson = this.toJSON();
  var publicData = {
    id: tmpJson._id,
    traderid: tmpJson.traderid,
    companyName: tmpJson.companyName,
    ustIdent: tmpJson.ustIdent,
    plz: tmpJson.plz,
    city: tmpJson.city,
    street: tmpJson.street,
    streetNumber: tmpJson.streetNumber,
    country: tmpJson.country,
    contactPersonTechnical: tmpJson.contactPersonTechnical,
    contactPersonBilling: tmpJson.contactPersonBilling
  };
  return publicData;
};

var TraderModel = mongoose.model('Trader', Trader);

---

很抱歉，我看不见：/

原因完全不同。应该好好看看堆栈跟踪

从以前的事件： 位于d:\Projects\work\UCConnectAPI\server\app\lib\apitonkmanager.js:53:43

---

在d:\Projects\work\UCConnectAPI\server\node\u modules\jsonwebtoken\verify.js:27:18上，请向我们展示有关

TraderModel.findOne（）的代码。这是否在
.then（）处理程序中？我们可能需要更多地了解代码context.Added。这是猫鼬的功能。
var mongoose = require('mongoose');
var Schema = mongoose.Schema;

var Trader = new Schema({
  // Trader profile datas
  companyName: String,
  ustIdent: String,
  plz: String,
  city: String,
  country: String,
  street: String,
  streetNumber: String,
  contactPersonTechnical: String,
  contactPersonBilling: String,
  email: String,
  // Accounts für den Trader
  accounts: [
    {
      accountid: {type: Schema.Types.ObjectId, ref: 'Account'},
    // Rechte
      rights: {
        allowAddAccount: Boolean
      }
    }
  ],
  // Kunden des Traders
  customerids: [{type: Schema.Types.ObjectId, ref: 'Customer', index: true}],
  // Sub-Trader (untergeordnet)
  traderids: [{type: Schema.Types.ObjectId, ref: 'Trader', index: true}],
  // Haupttrader (übergeordnet)
  traderid: {type: String, trim: true, index: {unique: true}},
  created: {type: Date, default: Date.now()}, // im system angelegt am....
  changed: {type: Date, default: Date.now(), index: true} // geändet am...
});
Trader.set('toJSON', {getters: true, virtuals: false, depopulate: true});

Trader.methods.filterForPublic = function() {
  var tmpJson = this.toJSON();
  var publicData = {
    id: tmpJson._id,
    traderid: tmpJson.traderid,
    companyName: tmpJson.companyName,
    ustIdent: tmpJson.ustIdent,
    plz: tmpJson.plz,
    city: tmpJson.city,
    street: tmpJson.street,
    streetNumber: tmpJson.streetNumber,
    country: tmpJson.country,
    contactPersonTechnical: tmpJson.contactPersonTechnical,
    contactPersonBilling: tmpJson.contactPersonBilling
  };
  return publicData;
};

var TraderModel = mongoose.model('Trader', Trader);