PHP和省道之间发送数据 [英] Send data between php and dart

问题描述

所以我要把镖客户方和使用AJAX的PHP服务器端之间的通信。因为直接执行是不可能的。我编译镖成JavaScript，然后一个Apache服务器上运行它。

So i am trying to communicate between dart clientside and a php server side using AJAX. Since direct execution is not possible. I compiled the dart to javascript and then run it on a apache server.

JSON数据在客户端产生的，但没有从服务器

json data is generated at client end, But there is no response from the the server

镖code

import 'dart:html';
import 'dart:json';

void main() {
  query("#clicker").on.click.add(callServer);

}

void callServer(Event event) {
  var data ={ 'name':"sendname"}
  ,jsondata=stringify(data);
  print(jsondata);

  var req = new HttpRequest();
  req.open('post','http://localhost:8080/darttest/server.php',true);
  //req.setRequestHeader('Content-type','application/json');
  req.send(jsondata);
  print(req.responseText);
}

PHP端，我只是回应接收到的内容。

php side i just echo the content received

<?php

$name = $_POST['name'];
echo $name;

?>

这是我第一次尝试在飞镖节目，所以让我知道，如果这种做法甚至有可能

This is my first try at dart programming, so do let me know if this approach is even possible

推荐答案

要读取响应，你必须把你的code在回调的 readyStateChange ：

To read the response, you have to put your code in a callback on readyStateChange :

var req = new HttpRequest();
req.open('post','http://localhost:8080/darttest/server.php',true);
req.on.readyStateChange.add((e){
  if (req.readyState == HttpRequest.DONE && req.status == 200){
    print(req.responseText);
  }
});
req.send(jsondata);

用c HTTP请求的$ C $，当你试图读取响应没有处理。你必须等待完成的请求来读取响应。

With your code the http request was not processed when you tried to read the response. You have to wait the completion of the request to read the response.

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