Angular 4200端口显示带有html的数据，而nodejs 8080端口显示不带html的json数据 [英] Angular 4200 port showing data with html but nodejs 8080 port showing json data without html

查看：99 发布时间：2019/11/26 19:19:04 javascript json node.js angular

本文介绍了Angular 4200端口显示带有html的数据，而nodejs 8080端口显示不带html的json数据的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！

问题描述

我正在使用带有结点js的angular 5来制作事件数据. 当我尝试从通过Angle运行的4200 port (http://localhost:4200/event)获取事件数据时，工作正常.它以html格式显示所有值.但是，当我使用来自nodejs的8080 port (http://localhost:8080/event)时，它仅在json中显示数据.这里没有显示来自event.component.html的html内容. express.js看起来像这样

I am using angular 5 with node js to make a crud for events data. When I am trying to get events data from 4200 port(http://localhost:4200/event) which is running through angular is working well. It is showing the data in html with all the values. But when I am using 8080 port(http://localhost:8080/event) which one is from nodejs it is showing data only in json. No html content from event.component.html is showing here. express.js looks like this

/* ===================
Import Node Modules
=================== */
const express = require('express');
const app = express();
const router = express.Router();

const mongoose = require('mongoose');
const config = require('./database');
const path = require('path');
const appRoot = require('app-root-path');

//custom module
const event = require('../config/routes/event.router');

const bodyParser = require('body-parser');
const cors = require('cors');
const port = process.env.PORT || 8080; // Allows heroku to set port


mongoose.Promise = global.Promise;
//assigning value 
process.env.NODE_ENV = 'devlopment';

/**
 * Database connection
 */

mongoose.connect(config.uri, {
  useMongoClient: true,
}, (err) => {
  // Check if database was able to connect
  if (err) {
    console.log('Could NOT connect to database: ', err); // Return error message
  } else {
    console.log('Connected to ' + config.db); // Return success message
  }
});

app.use(cors());
app.use(bodyParser.urlencoded({ extended: false }));
app.use(bodyParser.json());


app.use(express.static(path.join(appRoot.path, 'dist')));

/**
 * Routing
 */

app.use('/event', event); //Event Router

app.get('*', (req, res) => {
 res.sendFile(path.join(appRoot.path, 'dist/index.html'));
});

/**
 * Assiging port to server
 */
app.listen(port, () => {
  console.log('Listening on port ' + port + ' in ' + process.env.NODE_ENV + ' mode');
});

我的event.router.js看起来像这样

my event.router.js looks like this

const Event = require('../../model/event.model');
var multer  = require('multer');
var upload  = multer({ dest: './public/uploads/img/',fileFilter:function(req,file,cb){
  var ext = file.originalname.split('.').pop();
  cb(null, file.fieldname + '-' + Date.now() + '.' + ext);
    }
}).single('eventimage');

/* GET ALL EVENTS */
router.get('/', function(req, res, next) {
  Event.find(function (err, events) {
    if (err) return next(err);
    res.json(events);
  });
});

/* GET SINGLE EVENT BY ID */
 router.get('/:id', function(req, res, next) {
   Event.findById(req.params.id, function (err, post) {
     if (err) return next(err);
     res.json(post);
   });
 });

module.exports = router;

event.component.html看起来像这样

event.component.html looks like this

<div class="container">
  <h1>Event List</h1>
  <table class="table">
    <thead>
      <tr>
        <th>Event Id</th>
        <th>Event Name</th>
        <th>Event Desc</th>
        <th>Event Date</th>
      </tr>
    </thead>
    <tbody>
      <tr *ngFor="let event of events">
        <td><a routerLink="/event-details/{{ event._id }}">{{ event._id }}</a></td>
        <td>{{ event.eventname }}</td>
        <td>{{ event.eventdesc }}</td>
        <td>{{ event.eventdates }}</td>
      </tr>
    </tbody>
  </table>
</div>

event.components.ts看起来像这样

event.components.ts looks like this

import { Component, OnInit } from '@angular/core';
import { EventService } from '../event.service';

@Component({
  selector: 'app-event',
  templateUrl: './event.component.html',
  styleUrls: ['./event.component.css']
})
export class EventComponent implements OnInit {

  events: Event[] = [];

  constructor(
    protected eventService: EventService
    ) { }

  ngOnInit() {
    this.getAll();
  }

  getAll() {
    this.eventService.getEvents().subscribe(res => {
      this.events = res as Event[];
    }, err => {
      console.log(err);
    });
  }
}

event.service.ts看起来像这样

event.service.ts looks like this

import { Injectable } from '@angular/core';
import { Http, Headers, RequestOptions } from '@angular/http';
import { Observable } from 'rxjs';
import { HttpClientModule } from '@angular/common/http';

import { HttpClient } from "@angular/common/http";
import 'rxjs/add/operator/map';


@Injectable()
export class EventService {

  domain = 'http://localhost:8080';

  headers = new Headers({ 'Content-Type': 'application/json' });

  constructor(
   private http: Http,
    ) { }

  getEvent(id: string) {
    return this.http.get(this.domain + '/event/' + id, { headers: this.headers }).map(res => res.json());
  }

  getEvents(){
    return this.http.get( this.domain + '/event', {headers: this.headers}).map(res => res.json() );
  }

}

所以有人可以告诉我这是怎么回事.为什么我在8080端口中以json格式获取数据，为什么在4200端口中可以正常显示数据?我将如何在8080端口中使用html获取数据?任何帮助和建议都将非常可观.

So can someone tell me what is the wrong here. Why I am getting data as json in 8080 port and why its showing fine with 4200 port? How I will get the data with html in 8080 port? Any help and suggestions will be really appreciable.

Angular 4200端口显示带有html的数据，而nodejs 8080端口显示不带html的json数据 [英] Angular 4200 port showing data with html but nodejs 8080 port showing json data without html

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Angular 4200端口显示带有html的数据，而nodejs 8080端口显示不带html的json数据 [英] Angular 4200 port showing data with html but nodejs 8080 port showing json data without html

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