php实现的一个简单json rpc框架实例
php实现的一个简单json rpc框架实例
这篇文章主要介绍了php实现的一个简单json rpc框架实例,本文给出了RPC服务端和客户端代码以及应用实例,需要的朋友可以参考下
json rpc 是一种以json为消息格式的远程调用服务,它是一套允许运行在不同操作系统、不同环境的程序实现基于Internet过程调用的规范和一系列的实现。这种远程过程调用可以使用http作为传输协议,也可以使用其它传输协议,传输的内容是json消息体。
下面我们code一套基于php的rpc框架,此框架中包含rpc的服务端server,和应用端client;
(一)PHP服务端RPCserver jsonRPCServer.php
代码如下:
class jsonRPCServer {
/**
*处理一个request类,这个类中绑定了一些请求参数
* @param object $object
* @return boolean
*/
public static function handle($object) {
// 判断是否是一个rpc json请求
if ($_SERVER['REQUEST_METHOD'] != 'POST' || empty($_SERVER['CONTENT_TYPE'])
||$_SERVER['CONTENT_TYPE'] != 'application/json') {
return false;
}
// reads the input data
$request = json_decode(file_get_contents('php://input'),true);
// 执行请求类中的接口
try {
if ($result = @call_user_func_array(array($object,$request['method']),$request['params'])) {
$response = array ( 'id'=> $request['id'],'result'=> $result,'error'=> NULL );
} else {
$response = array ( 'id'=> $request['id'], 'result'=> NULL,
'error' => 'unknown method or incorrect parameters' );}
} catch (Exception $e) {
$response = array ('id' => $request['id'],'result' => NULL, 'error' =>$e->getMessage());
}
// json 格式输出
if (!empty($request['id'])) { // notifications don't want response
header('content-type: text/javascript');
echo json_encode($response);
}
return true;
}
}
(二)Rpc客户端,jsonRPCClient.php
复制代码 代码如下:
/*
*/
class jsonRPCClient {
private $debug;
private $url;
// 请求id
private $id;
private $notification = false;
/**
* @param $url
* @param bool $debug
*/
public function __construct($url,$debug = false) {
// server URL
$this->url = $url;
// proxy
empty($proxy) ? $this->proxy = '' : $this->proxy = $proxy;
// debug state
empty($debug) ? $this->debug = false : $this->debug = true;
// message id
$this->id = 1;
}
/**
*
* @param boolean $notification
*/
public function setRPCNotification($notification) {
empty($notification) ? $this->notification = false : $this->notification = true;
}
/**
* @param $method
* @param $params
* @return bool
* @throws Exception
*/
public function __call($method,$params) {
// 检验request信息
if (!is_scalar($method)) {
throw new Exception('Method name has no scalar value');
}
if (is_array($params)) {
$params = array_values($params);
} else {
throw new Exception('Params must be given as array');
}
if ($this->notification) {
$currentId = NULL;
} else {
$currentId = $this->id;
}
// 拼装成一个request请求
$request = array( 'method' => $method, 'params' => $params,'id' => $currentId);
$request = json_encode($request);
$this->debug && $this->debug.='***** Request *****'."\n".$request."\n".'***** End Of request *****'."\n\n";
$opts = array ('http' => array (
'method' => 'POST',
'header' => 'Content-type: application/json',
'content' => $request
));
// 关键几部
$context = stream_context_create($opts);
if ( $result = file_get_contents($this->url, false, $context)) {
$response = json_decode($result,true);
} else {
throw new Exception('Unable to connect to '.$this->url);
}
// 输出调试信息
if ($this->debug) {
echo nl2br(($this->debug));
}
// 检验response信息
if (!$this->notification) {
// check
if ($response['id'] != $currentId) {
throw new Exception('Incorrect response id (request id: '.$currentId.', response id: '.$response['id'].')');
}
if (!is_null($response['error'])) {
throw new Exception('Request error: '.$response['error']);
}
return $response['result'];
} else {
return true;
}
}
}
?>
(三) 应用实例
(1)服务端 server.php
代码如下:
require_once 'jsonRPCServer.php';
代码如下:
// member 为测试类
require 'member.php';
// 服务端调用
$myExample = new member();
// 注入实例
jsonRPCServer::handle($myExample)
or print 'no request';
?>
(2)测试类文件,member.php
代码如下:
class member{
public function getName(){
return 'hello word ' ; // 返回字符串
}
}
(3)客户端 client.php
代码如下:
require_once 'jsonRPCClient.php';
$url = 'http://localhost/rpc/server.php';
$myExample = new jsonRPCClient($url);
// 客户端调用
try {
$name = $myExample->getName();
echo $name ;
} catch (Exception $e) {
echo nl2br($e->getMessage()).'
'."\n";
}

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics











PHP and Python each have their own advantages, and choose according to project requirements. 1.PHP is suitable for web development, especially for rapid development and maintenance of websites. 2. Python is suitable for data science, machine learning and artificial intelligence, with concise syntax and suitable for beginners.

PHP is a scripting language widely used on the server side, especially suitable for web development. 1.PHP can embed HTML, process HTTP requests and responses, and supports a variety of databases. 2.PHP is used to generate dynamic web content, process form data, access databases, etc., with strong community support and open source resources. 3. PHP is an interpreted language, and the execution process includes lexical analysis, grammatical analysis, compilation and execution. 4.PHP can be combined with MySQL for advanced applications such as user registration systems. 5. When debugging PHP, you can use functions such as error_reporting() and var_dump(). 6. Optimize PHP code to use caching mechanisms, optimize database queries and use built-in functions. 7

PHP is widely used in e-commerce, content management systems and API development. 1) E-commerce: used for shopping cart function and payment processing. 2) Content management system: used for dynamic content generation and user management. 3) API development: used for RESTful API development and API security. Through performance optimization and best practices, the efficiency and maintainability of PHP applications are improved.

PHP and Python each have their own advantages, and the choice should be based on project requirements. 1.PHP is suitable for web development, with simple syntax and high execution efficiency. 2. Python is suitable for data science and machine learning, with concise syntax and rich libraries.

PHP is still dynamic and still occupies an important position in the field of modern programming. 1) PHP's simplicity and powerful community support make it widely used in web development; 2) Its flexibility and stability make it outstanding in handling web forms, database operations and file processing; 3) PHP is constantly evolving and optimizing, suitable for beginners and experienced developers.

PHP and Python have their own advantages and disadvantages, and the choice depends on project needs and personal preferences. 1.PHP is suitable for rapid development and maintenance of large-scale web applications. 2. Python dominates the field of data science and machine learning.

PHP is suitable for web development, especially in rapid development and processing dynamic content, but is not good at data science and enterprise-level applications. Compared with Python, PHP has more advantages in web development, but is not as good as Python in the field of data science; compared with Java, PHP performs worse in enterprise-level applications, but is more flexible in web development; compared with JavaScript, PHP is more concise in back-end development, but is not as good as JavaScript in front-end development.

PHP is mainly procedural programming, but also supports object-oriented programming (OOP); Python supports a variety of paradigms, including OOP, functional and procedural programming. PHP is suitable for web development, and Python is suitable for a variety of applications such as data analysis and machine learning.
