无法使用http.post ionic发送数据

Question

I'm not able to send data through http.post with the following code. I'm able to get a response but not able to send data for processing.

the following is the code:

appServer.ts

import { Component } from '@angular/core';
import { Http, HttpModule, Headers } from '@angular/http';
import 'rxjs/add/operator/map';

@Component({
  selector: 'server',
  templateUrl: 'home.html'
})
export class appServer {
    connectServer: any;
    send_data: any;
    constructor(private http: Http) {
    }
    serverConnect(){
        let headers = new Headers({'Content-Type': 'application/x-www-form-urlencoded'});
        let req = {call: 'insert_BOT',data: this.send_data};
        this.http.post('http://www.o9village.com/myBOT_api/botfeeds.php',JSON.stringify(req), headers)
        .map(res=>res.json())
        .subscribe(res=>{
            this.connectServer = res;
            console.log(res);
        },(err)=>{
            console.log('Can\'t fetch data');
        })
    }
}

botfeeds.php

header('Access-Control-Allow-Origin: *');
header('Access-Control-Allow-Methods: POST');
header('Access-Control-Allow-Headers: Content-Type');

echo json_encode($array);

console.log(res) returns a null value/

Answer 1

You can not send post data ie when you send data with

Header Content-Type: application/json you can not see it in $_POST variable in php.

You have to send data with

Header Content-Type: application/x-www-form-urlencoded

Then you will be able to see Post data on server.

Answer 2

http.post takes three parameters

1) url,

2) data you want to send,

3)header

in the header you specify as json but you are doing JSON.stringify it will convert it into string may be this is the error. send it as it is may solve the problem.

try this

this.http.post('http://www.o9village.com/myBOT_api/botfeeds.php', req, headers)