通过IIS发布Angular项目时SQL中没有数据

如何解决通过IIS发布Angular项目时SQL中没有数据

我有一个项目，它通过Node JS服务器与SQL Server通信。

我已经通过IIS发布了该项目（放置了dist文件夹）。

当我尝试使用从IIS（calc.voltabelting.com）获得的URL打开网站时，它会打开该网站，但是angular项目无法与Node JS服务器通信，因此我不会无法从SQL Server获取任何数据。

我添加了Node.js的代码

任何帮助将不胜感激！ 谢谢

var express = require('express'); // Web Framework
var app = express();
const sql = require('mssql');
const bodyParser = require('body-parser')
const nodemailer = require("nodemailer");
var cors = require('cors')

app.use(cors()) 

app.use(function(req,res,next) {
    res.header('Access-Control-Allow-Origin','http://localhost');
    res.header('Access-Control-Allow-Origin','http://localhost:4200');
    res.header("Access-Control-Allow-Origin","*");
    res.header("Access-Control-Allow-Headers","Origin,X-Requested-With,Content-Type,Accept");
    res.header('Access-Control-Allow-Methods','GET,POST,OPTIONS,DELETE,PUT');
   next();
  });

app.use(bodyParser.json());
app.use(express.static(process.cwd()+"/Cost-Saving-Calculator/dist/Cost-Saving-Calculator/"));
  var config = {
    user: 'sa',password: '123456',// server: 'localhost\\SQLEXPRESS',server: 'localhost',database: 'master',instanceName: "SQLEXPRESS",options: {
        "encrypt": false,"enableArithAbort": true
        }
};

 
sql.connect(config,function (err) {
    if (err) {
        console.log(err);
        res.send(err);}
    else {
        // create Request object
        var request = new sql.Request();
    }
    
    // app.get('/',(req,res) => {
    //     res.sendFile(process.cwd()+"/Cost-Saving-Calculator/dist/Cost-Saving-Calculator/index.html")
    //   });

    app.get('/FabricationTable',function (req,res) {
    
        request.query('select * from FABRICATION',function (err,recordset) {
        if (err) console.log(err)
        res.send(recordset);
        });
    });

    app.get('/accessList',res) {
        const user = req.query.user;
        const passwoard = req.query.passwoard;
        console.log(user+"  ## "+passwoard);
        request.query("select * from AccessList where Passwoard='"+passwoard+"'and UserName ='"+user+"'",recordset) {
        if (err) console.log(err)
        res.send(recordset);
        });
    });

    app.get('/CostSaveParams',res) {
        request.query('select * from CostSaveBasicParams',recordset) {
        if (err) console.log(err)
        res.send(recordset);
        });
    });

    app.get('/Belts',res) {
        request.query('select * from Belts',recordset) {
        if (err) console.log(err)
        res.send(recordset);
        });
    });

    app.get('/BeltsEnglish',res) {
        request.query('select * from BeltsEnglish',recordset) {
        if (err) console.log(err)
        res.send(recordset);
        });
    });

    app.post('/CostSaveParams',res) {
        var postData  = req.body;
        var query = "UPDATE CostSaveBasicParams SET value ="+postData.value+" WHERE name ='"+postData.name+"'";
        request.query(query,function (error,results,fields) {
            console.log(query);
        if (error){throw error; } 
        
        res.send(results);
        });
    });

    app.post('/accessList',res) {
        var postData  = req.body;
        request.query('INSERT INTO AccessList VALUES ?',postData,fields) {
        if (error) throw error;
        res.send(results);
        });
    });

    app.post('/sendEmail',res) {
        let user  = req.body;
        console.log(user);
            sendEmail(user,info =>{
                console.log(info);
                res.send(info)
            });
    });
    
    async function sendEmail(user,callback)
    {
        let transporter = nodemailer.createTransport({
            host:'smtp.gmail.com',port:587,secure:false,auth:{
            user:'[e-mail]',pass:'a2sfnobs'
            }
        })

        let mailOption={
            from:"company that is interested",to:"[e-mail]",subject:"registeration request from "+user.company,html:`<h1>registeration detail:</h1><br>
            <h4>First Name: ${user.firstName}.</h4>
            <br><h4>Last Name: ${user.lastName}. </h4><br>
            <h4>Mail Address: ${user.email}. </h4><br>
            <h4>Company Name: ${user.company}. </h4><br>
            <h4>Job Title: ${user.job}. </h4><br>
            <h4>Phone Number: ${user.phone}.</h4>`
        }

        let info = await transporter.sendMail(mailOption);
        callback(info);
    }
  
    app.post('/all',res) {
    var postData  = req.body;
    req.setHeader('Access-Control-Allow-Origin','http://localhost:4200');
        request.query('INSERT INTO FABRICATION SET ?',fields) {
            if (error) throw error;
            res.send(results);
        });
    });
});

var server = app.listen(5000,function () {
    console.log('Server is running..');
});