为什么我在端口8080而不是mongos上安装了enterprisedb？

Question

我在Angular 8和mongoDB中的API遇到问题。我从教程中获得了简单的服务，但是当我与localhost：8080连接时，我获得了与Enterprisedb相似的信息，为什么？我想用localhst：8080 / api / getUsers连接，但我不能。为什么8080端口被锁定？

代码api

var express = require('express');
var path = require("path");
var bodyParser = require('body-parser');
var mongo = require('mongoose');

var db = mongo.connect("mongodb://localhost:27017/crud", function(err, response){
    if(err) {console.log(err); }
    else { console.log("Connected to"+ db, " + ", response); }
});

var app = express();
app.use(bodyParser());
app.use(bodyParser.json({limit: '5mb'}));
app.use(bodyParser.urlencoded({extended:true}));

app.use(function (req, res, next) {
    res.setHeader('Access-Control-Allow-Origin', 'http://http://localhost:4200');
    res.setHeader('Access-Control-Allow-Methods', 'GET, POST, OPTIONS, PUT, PATCH, DELETE');
    res.setHeader('Access-Control-Allow-Headers', 'X-Requested-With,content-type');
    res.setHeader('Access-Control-Allow-Credentials',true);
    next();
});

var Schema = mongo.Schema;

var UserSchema = new Schema({
    name: { type: String },
    address: {type: String},
}, { versionKey: false});

var model = mongo.model('users', UserSchema, 'users');
app.get("/api/getUser", function(req, res) {
    model.find({}, function(err) {
        if(err) {
            res.send(err);
        } else {
            res.send(data)
        }
    });
});

app.listen(8080, function() {
    console.log('example app listening on port 8080')
});