一、开发项目划分与搭建
JSON RPC 是一种基于 JSON 格式的轻量级的 RPC 协议标准，易于使用和阅读。在 Hyperf 里由 hyperf/json-rpc 组件来实现，可自定义基于 HTTP 协议来传输，或直接基于 TCP 协议来传输。
本次我选择使用基于 TCP 协议的 jsonrpc 协议来搭建服务。
服务有两种角色，一种是 服务提供者(ServiceProvider)，即为其它服务提供服务的服务，另一种是 服务消费者(ServiceConsumer)，即依赖其它服务的服务，一个服务既可能是 服务提供者(ServiceProvider)，同时又是 服务消费者(ServiceConsumer)。而两者直接可以通过 服务契约 来定义和约束接口的调用，在 Hyperf 里，可直接理解为就是一个 接口类(Interface)，通常来说这个接口类会同时出现在提供者和消费者下。
本次我搭建了一个服务提供者 calculate，为其他服务提供计算功能；一个消费者，通过 jsonrpc 协议调用 calculate 提供的计算功能。搭建过程如下：
1、搭建 calculate 服务提供者
composer create-project hyperf/hyperf-skeleton calculate
Which RPC protocol do you want to use ?
[1] JSON-RPC with Service Governance
[2] JSON-RPC
[3] gRPC
[n] None of the above
Make your selection or type a composer package name and version (n): 2
Which config center do you want to use ?
[1] Apollo
[2] Aliyun ACM
[n] None of the above
Make your selection or type a composer package name and version (n): 1
Do you want to use hyperf/constants component ?
[1] yes
[n] None of the above
Make your selection (n): 1
Do you want to use hyperf/async-queue component ? (A simple redis queue component)
[1] yes
[n] None of the above
Make your selection or type a composer package name and version (n): 1
Do you want to use hyperf/amqp component ?
[1] yes
[n] None of the above
Make your selection or type a composer package name and version (n): 1
Do you want to use hyperf/model-cache component ?
[1] yes
[n] None of the above
Make your selection or type a composer package name and version (n): 1
Do you want to use hyperf/elasticsearch component ?
[1] yes
[n] None of the above
Make your selection or type a composer package name and version (n): n
Do you want to use hyperf/tracer component ? (A open tracing protocol component, adapte with Zipkin etc.)
[1] yes
[n] None of the above
Make your selection or type a composer package name and version (n): 1
2、搭建 gateway 服务消费者
composer create-project hyperf/hyperf-skeleton gateway
Which RPC protocol do you want to use ?
[1] JSON-RPC with Service Governance
[2] JSON-RPC
[3] gRPC
[n] None of the above
Make your selection or type a composer package name and version (n): 2
Which config center do you want to use ?
[1] Apollo
[2] Aliyun ACM
[n] None of the above
Make your selection or type a composer package name and version (n): 1
Do you want to use hyperf/constants component ?
[1] yes
[n] None of the above
Make your selection (n): 1
Do you want to use hyperf/async-queue component ? (A simple redis queue component)
[1] yes
[n] None of the above
Make your selection or type a composer package name and version (n): 1
Do you want to use hyperf/amqp component ?
[1] yes
[n] None of the above
Make your selection or type a composer package name and version (n): 1
Do you want to use hyperf/model-cache component ?
[1] yes
[n] None of the above
Make your selection or type a composer package name and version (n): 1
Do you want to use hyperf/elasticsearch component ?
[1] yes
[n] None of the above
Make your selection or type a composer package name and version (n): n
Do you want to use hyperf/tracer component ? (A open tracing protocol component, adapte with Zipkin etc.)
[1] yes
[n] None of the above
Make your selection or type a composer package name and version (n): 1
二、JSON RPC服务开发与配置
1、calculate 功能开发
app 目录结构
app
Constants
Controller
Exception
JsonRpc
CalculatorService.php
CalculatorServiceInterface.php
Listener
Model
Process
app\JsonRpc\CalculatorService.php
app\JsonRpc\CalculatorServiceInterface.php
calculate 服务配置
config\autoload\server.php
SWOOLE_PROCESS,
'servers' => [
[
'name' => 'jsonrpc',
'type' => Server::SERVER_BASE,
'host' => '0.0.0.0',
'port' => 9501,
'sock_type' => SWOOLE_SOCK_TCP,
'callbacks' => [
SwooleEvent::ON_RECEIVE => [Hyperf\JsonRpc\TcpServer::class, 'onReceive'],
],
'settings' => [
'open_eof_split' => true,
'package_eof' => "\r\n",
]
],
],
'settings' => [
'enable_coroutine' => true,
'worker_num' => swoole_cpu_num(),
'pid_file' => BASE_PATH . '/runtime/hyperf.pid',
'open_tcp_nodelay' => true,
'max_coroutine' => 100000,
'open_http2_protocol' => true,
'max_request' => 100000,
'socket_buffer_size' => 2 * 1024 * 1024,
],
'callbacks' => [
SwooleEvent::ON_BEFORE_START => [Hyperf\Framework\Bootstrap\ServerStartCallback::class, 'beforeStart'],
SwooleEvent::ON_WORKER_START => [Hyperf\Framework\Bootstrap\WorkerStartCallback::class, 'onWorkerStart'],
SwooleEvent::ON_PIPE_MESSAGE => [Hyperf\Framework\Bootstrap\PipeMessageCallback::class, 'onPipeMessage'],
],
];
2、gateway 消费者功能开发
app 目录结构
app
Constants
Controller
IndexController.php
Exception
JsonRpc
CalculatorServiceInterface.php
Listener
Model
Process
app\JsonRpc\CalculatorServiceInterface.php
config\routes.php
app\Controller\IndexController.php
request->input('user', 'Hyperf');
$method = $this->request->getMethod();
return [
'method' => $method,
'message' => "Hello {$user}.",
];
}
public function add()
{
$client = ApplicationContext::getContainer()->get(CalculatorServiceInterface::class);
$value = $client->add(10, 20);
return $value;
}
}
gateway 服务配置
config\autoload\server.php
SWOOLE_PROCESS,
'servers' => [
[
'name' => 'http',
'type' => Server::SERVER_HTTP,
'host' => '0.0.0.0',
'port' => 9500,
'sock_type' => SWOOLE_SOCK_TCP,
'callbacks' => [
SwooleEvent::ON_REQUEST => [Hyperf\HttpServer\Server::class, 'onRequest'],
],
],
],
'settings' => [
'enable_coroutine' => true,
'worker_num' => swoole_cpu_num(),
'pid_file' => BASE_PATH . '/runtime/hyperf.pid',
'open_tcp_nodelay' => true,
'max_coroutine' => 100000,
'open_http2_protocol' => true,
'max_request' => 100000,
'socket_buffer_size' => 2 * 1024 * 1024,
],
'callbacks' => [
SwooleEvent::ON_BEFORE_START => [Hyperf\Framework\Bootstrap\ServerStartCallback::class, 'beforeStart'],
SwooleEvent::ON_WORKER_START => [Hyperf\Framework\Bootstrap\WorkerStartCallback::class, 'onWorkerStart'],
SwooleEvent::ON_PIPE_MESSAGE => [Hyperf\Framework\Bootstrap\PipeMessageCallback::class, 'onPipeMessage'],
],
];
config\autoload\services.php
[
[
// name 需与服务提供者的 name 属性相同
'name' => 'CalculatorService',
// 服务接口名，可选，默认值等于 name 配置的值，如果 name 直接定义为接口类则可忽略此行配置，如 name 为字符串则需要配置 service 对应到接口类
'service' => \App\JsonRpc\CalculatorServiceInterface::class,
// 对应容器对象 ID，可选，默认值等于 service 配置的值，用来定义依赖注入的 key
'id' => \App\JsonRpc\CalculatorServiceInterface::class,
// 服务提供者的服务协议，可选，默认值为 jsonrpc-http
'protocol' => 'jsonrpc',
// 负载均衡算法，可选，默认值为 random
'load_balancer' => 'random',
// 这个消费者要从哪个服务中心获取节点信息，如不配置则不会从服务中心获取节点信息
// 'registry' => [
// 'protocol' => 'consul',
// 'address' => 'http://127.0.0.1:8500',
// ],
// 如果没有指定上面的 registry 配置，即为直接对指定的节点进行消费，通过下面的 nodes 参数来配置服务提供者的节点信息
'nodes' => [
['host' => '127.0.0.1', 'port' => 9501],
],
]
],
];
三、服务启动与通信演示
1、启动 calculate 服务
root@cosyphp-VirtualBox:~# cd /home/wwwroot/calculate/
root@cosyphp-VirtualBox:/home/wwwroot/calculate# php bin/hyperf.php start
2、启动 gateway 服务
root@cosyphp-VirtualBox:~# cd /home/wwwroot/gateway/
root@cosyphp-VirtualBox:/home/wwwroot/gateway# php bin/hyperf.php start
3、请求 gateway 服务
root@cosyphp-VirtualBox:~# curl http://127.0.0.1:9500/add
30
root@cosyphp-VirtualBox:~#
四、各服务关系总览
各服务关系
使用阿里云配置中心的配置。
阿里云配置中心配置文件内容对象会直接覆盖到本机config对象。以后修改配置信息就不需要重启服务了。
安装依赖
composer require hyperf/config-aliyun-acm
config/autoload 文件夹内增加一个 aliyun_acm.php文件内容如下：
true,
// 是否使用独立进程来拉取config，如果否则将在worker内以协程方式拉取
'use_standalone_process' => true,
// 配置更新间隔（秒）
'interval' => 5,
// 阿里云 ACM 断点地址，取决于您的可用区
'endpoint' => env('ALIYUN_ACM_ENDPOINT', 'acm.aliyun.com'),
// 当前应用需要接入的 Namespace
'namespace' => env('ALIYUN_ACM_NAMESPACE', '733e4119-6098-4491-9959a866ceb24'),
// 您的配置对应的 Data ID
'data_id' => env('ALIYUN_ACM_DATA_ID', 'hyperf-demo'),
// 您的配置对应的 Group
'group' => env('ALIYUN_ACM_GROUP', 'DEFAULT_GROUP'),
// 您的阿里云账号的 Access Key
'access_key' => env('ALIYUN_ACM_AK', 'LTAI4G8MwXoLGd'),
// 您的阿里云账号的 Secret Key
'secret_key' => env('ALIYUN_ACM_SK', 'YXLViuYKqM5WoRrCon4U'),
];
或者在根目录.env 添加：
ALIYUN_ACM_NAMESPACE=733e4119-6098-4491-9950-4b24
ALIYUN_ACM_DATA_ID=hyperf-demo
ALIYUN_ACM_GROUP=DEFAULT_GROUP
ALIYUN_ACM_AK=LTAI4G8MwXosb2S
ALIYUN_ACM_SK=YXLViuYKqM5W
然后