NodeJs TypeError:无法读取未定义的属性“Customer\u id”

Question

我试图创建一个post方法，以便将数据存储到mongoDb中，但是当我通过postman发送post请求时，出现了一个类型错误

我已经通过npm更新了软件包，但错误保持不变

类型错误：无法读取属性'Customer_id'的未定义在exports.create_customer（C：\用户\jawad\桌面\nodejspactise\控制器\admin.controll.js:64： 31）在Layer.handle[作为handle_request]（C：\用户\jawad\桌面\nodejspactise\node_modules\Express\lib\router\layer.js:95： 5）在下一个（C：\用户\jawad\Desktop\nodejspactise\node_modules\Express\lib\router\route.js:137： 13）在Route.dispatch（C：\用户\jawad\Desktop\nodejspactise\node_modules\Express\lib\router\route.js:112： 3）在Layer.handle[作为handle_request]（C：\用户\jawad\Desktop\nodejspactise\node_modules\Express\lib\router\layer.js:95： 5）在C：\用户\jawad\Desktop\nodejspactise\node_modules\Express\lib\router\index.js:281： 22在Function.process_params（C：\用户\jawad\Desktop\nodejSpractise\node_modules\Express\lib\router\index.js:335： 12）在下一个（C：\用户\jawad\Desktop\nodejspactise\node_modules\Express\lib\router\index.js:275： 10）在Function.handle（C：\用户\jawad\Desktop\nodejspactise\node_modules\Express\lib\router\index.js:174： 3）在路由器（C：\用户\jawad\Desktop\nodejspactise\node_modules\Express\lib\router\index.js:47： 12）在Layer.handle[handle_request]（C：\用户\jawad\Desktop\nodejspactise\node_modules\Express\lib\router\layer.js:95： 5）在trim_prefix（C：\用户\jawad\Desktop\nodejspactise\node_modules\Express\lib\router\index.js:317： 13）在C：\用户\jawad\Desktop\nodejspactise\node_modules\Express\lib\router\index.js:284： 7在Function.process_params（C：\用户\jawad\Desktop\nodejspactise\node_modules\Express\lib\router\index. js： 335:12）在下一个（C：\用户\jawad\Desktop\nodejSpractise\node_modules\Express\lib\router\index. js： 275:10）在jsonParser（C：\用户\jawad\Desktop\nodejspactise\node_modules\body-parser\lib\type\json. js： 101:7）

这是一个应用程序。js文件

const express= require('express');
    const body_parser=require('body-parser');
    const app=express();
    const mongo=require('mongoose');

    app.use(body_parser.urlencoded({extended:true}));
    app.use(body_parser.json());


    const admin_route=require('./routes/admin.routes');
    app.use('/admin',admin_route);
    mongo.connect("mongodb://localhost/DcPrimeDb", 
        {useNewUrlParser: true, useUnifiedTopology: true } );
    mongo.Promise = global.Promise;
    let db = mongo.connection;
    db.on('error', console.error.bind(console, 'MongoDB connection error:'));


    const port=8080;
    app.listen(port,()=>
        {

          console.log("Server is up "+port);
        });

customer.model.js文件

const mongoose=require('mongoose');
const Schema=mongoose.Schema;
const joi=require('joi');

let Customer_schema=new Schema(
    {

        Customer_id:{
            type:Number,
            required:true
        }, 
        Password:{type:String,
            required:true,
            max:100},

        Name:{type:String,
            required:true,
            max:100},

        Email:{type:String,
            required:true,
            max:200},

        Occupation:{type:String,
            required:true,
            max:30},

        Gender:{type:String,
            required:true,
            max:1,
            min:1},

        Dob:{type:Date,required:true,},
         Address:{type:String,required:true,max:500},
          City:{type:String,required:true,max:40},
           Country:{type:String,required:true,max:100}
    }

);
module.exports=mongoose.model('Customer',Customer_schema,'Customers');

admin.controll.js文件：

const Customer=require('..//model/customer.model');
const employee=require('..//model/employee.model');
const changerequest=require('..//model/ChangeRequest.model');
const joi=require('joi');
const mongo=require('mongoose');
let db=mongo.Connection;




exports.create_customer=function (res,req) 
{
    let  customer= new Customer(
    {

         Customer_id:req.body.Customer_id,

        Password:req.body.Password, 
        Name:req.body.Name, 
        Email:req.body.Email, 
        Occupation:req.body.Occupation, 
        Gender:req.body.Gender, 
        Dob:req.body.Dob ,
         Address:req.body.Address,
          City:req.body.City,
           Country:req.body.Country
    })

    customer.save((err)=>
    {
        if (err)
        {
            return next(err);
        }
        res.send("Customer  Sucessfull Created");

    }
    )

}

管理路线。js文件：

   const  express=require('express');
    const router=express.Router();
    const body_parser=require('body-parser');
    const app=express();
    app.use(body_parser.json());
    app.use(body_parser.urlencoded({extended:true}));
    const admin_controll=require('../controller/admin.controll');
    router.post('/createCustomer',admin_controll.create_customer);

    // router.get('/test',product_controll.test);
    module.exports=router;

Answer 1

您在这里导出。创建_customer=function（res，req）未指定正确的顺序。它必须是导出。创建客户=功能（请求、回复）