Question

这是我的代码

 import { HttpClient, HttpHeaders } from '@angular/common/http';
import { Injectable } from '@angular/core';
import { Observable } from 'rxjs/Rx';

@Injectable()
export class LinkedinPageProvider {

  constructor(public http: HttpClient) {
    console.log('Hello LinkedinPageProvider Provider');
  }

  //posting facebook data ---------------------------------------
  postFacebookData(fbData) {
    alert(fbData.email);
    let headers = new HttpHeaders();
    //headers.append('Content-Type','application/json');
    return this.http.post('http://192.168.0.100:3000/api/facebookuser',fbData,{headers: headers})

  }

}

app.js文件

app.use(cors());
app.use(methodOverride());
app.use(methodOverride('X-HTTP-Method-Override'));
//app.use(express.session({ secret: 'keyboard dog' }));
app.use(function(req, res, next) {
    res.header("Access-Control-Allow-Origin", "*");
    res.header("Access-Control-Allow-Methods", "GET,HEAD,OPTIONS,POST,PUT");
    res.header("Access-Control-Allow-Headers", "Origin, X-Requested-With, Content-Type, Accept, Authorization");
    next();
  });
const users = require('./routes/users');
app.use('/api',users);

这是路由js文件（users.js）

router.post('/facebookuser', function(req,res) {
  console.log('facebook request');

在我的节点js控制台中，我可以看到facebook request。数据存储在数据库中，但在前端控制台（Chrome控制台）中引发错误

ERROR HttpErrorResponseerror：ProgressEventheaders： HttpHeadersmessage：“（失败的url）Http失败响应：0 未知错误“名称：” HttpErrorResponse“确定：错误状态：0statusText： “未知错误” URL：null__proto__：HttpResponseBase defaultErrorLogger @ vendor.js：1823 ErrorHandler.handleError @ vendor.js：1884

POST http://192.168.0.100:3000/api/facebookuser net::ERR_CONNECTION_REFUSED

（未知URL）的Http错误响应：0未知错误：

0 个答案: