search

Home >Web Front-end >JS Tutorial >Ajax implements remote communication

Ajax implements remote communication

韦小宝
韦小宝Original
2018-01-13 11:41:291549browse

This article mainly introduces the relevant information about ajax to realize remote communication. Friends who are interested in ajax can refer to the article about ajax to realize remote communication.

The example of this article shares with you the realization of ajax to realize remote communication. For your reference, the specific content is as follows

The first file:html 

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>ajax解决跨域问题</title>
  <script src="jquery-3.0.0.min.js" type="text/javascript"></script>
</head>
<body>
<script>
  $.ajax({
    type:"POST",
    url:"postDemo.php",
    data:{
      "url":"http://192.168.4.101:90/PHPStudy4/server.php",
      "username":"admin",
      "password":"admin",
    },success:function(data){
      var result=eval("("+data+")");
      console.log(result);
    }

  })
</script>
</body>
</html>

The second file: Server-side processing data 

<?php
/**
 * Created by PhpStorm.
 * User: Administrator
 * Date: 2016-7-21
 * Time: 10:12
 */

if ($_SERVER["REQUEST_METHOD"] == "POST") {
//  echo json_encode(array("111"=>"112"));
  if (isset($_POST["url"]) && isset($_POST["username"]) && isset($_POST["password"])) {
    $result = postDemo($_POST["url"], array("username" => $_POST["username"], "password" => $_POST["password"]));
    echo $result;

  } else {
    echo json_encode(array("msg2" => "!!!!!!!!!!!!!!!!!!!!!error!!!!!2"));
  }
} else {
  echo json_encode(array("msg" => "error!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!"));
}
function postDemo($url, $data)
{

  $query = http_build_query($data);
  $options = array(
    "http" => array(
      "header" => "Content-type: application/x-www-form-urlencoded\r\n" .
        "Content-length:" . strlen($query) . "\r\n" .
        "User-Agent:MyAgent/1.0/r/n",
      "method" => "POST",
      "content" => $query
    )
  );
  $content = stream_context_create($options);
  $result = file_get_contents($url, false, $content);
  return $result;
}

//echo postDemo("http://192.168.4.101:90/PHPStudy4/server.php",array("username"=>"admin","password"=>"admin"));

where"url":"http://192.168.4.101 :90/PHPStudy4/server.php",This url is our remote access address.

Related recommendations:

ajax synchronization verification order number Is there a method for

js and ajax to process the json object returned by the java background?

Ajax gets the data and then displays it on the page

The above is the detailed content of Ajax implements remote communication. For more information, please follow other related articles on the PHP Chinese website!

Java php json ajax html JS 对象 http
Statement：
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Previous article：Use trigonometric functions to draw dotted lines on canvasNext article：Use trigonometric functions to draw dotted lines on canvas

Related articles

See more