ThinkPHP 使用 SwaggerUi 自动生成 api 文档

1、下载swagger-ui 

GitHub地址：https://github.com/swagger-api/swagger-ui

2、修改 ThinkPHP 的 build.php ，执行命令生成需要创建的模块

// 定义api模块的自动生成 （按照实际定义的文件名生成）
    'api'     => [
        '__file__'   => ['common.php'],
        '__dir__'    => ['controller'],
        'controller' => ['Passport'],
        'model'      => [],
        'view'       => [],
    ],
命令： php think build

3、修改刚刚生成的模块下的 config.php 文件

return [
    'default_return_type' => 'json', // 修改控制器默认输出json对象
    'url_param_type' => 1, // URL参数方式 0 按名称成对解析 1 按顺序解析
];

4、在刚刚生成的 application/api/contorller/Passport.php 下添加这几个方法

<?php
namespace appapicontroller;

/**
 * swagger: 登录相关
 */
class Passport
{
    /**
     * post: 发送验证码
     * path: sendVerify/{phone}/{deviceType}
     * method: sendVerify
     * param: phone - {string} 手机号
     * param: deviceType - {int} = [0|1|2|3|4] 设备类型(0: android手机, 1: ios手机, 2: android平板, 3: ios平板, 4: pc)
     */
    public function sendVerify($phone, $deviceType) {
        return [
            'code'        => 200,
            'message'    => '发送验证码',
            'data'        => [
                'phone'            => $phone,
                'deviceType'        => $deviceType
            ]
        ];
    }
    
    /**
     * post: 登陆
     * path: login
     * method: login
     * param: phone - {string} 手机号
     * param: password - {string} 密码
     * param: deviceType - {int} = [0|1|2|3|4] 设备类型(0: android手机, 1: ios手机, 2: android平板, 3: ios平板, 4: pc)
     * param: verifyCode - {string} = 0 验证码
     */
    public function login($phone, $password, $deviceType, $verifyCode = '0') {
        return [
            'code'        => 200,
            'message'    => '登陆成功',
            'data'        => [
                'phone'            => $phone,
                'password'        => $password,
                'deviceType'        => $deviceType,
                'verifyCode'        => $verifyCode
            ]
        ];
    }
    
    /**
     * get: 获取配置
     * path: profile
     * method: profile
     * param: keys - {string[]} 需要获取配置的Key值数组
     */
    public function profile($keys) {
        return [
            'code'        => 200,
            'message'    => '获取成功',
            'data'        => $keys
        ];
    }
}

5、把 swagger-ui 目录下的 dist 放到你的 public 目录下，然后更名为 swagger。

6、修改 swagger 下 index.html 的路径：

    window.onload = function() {
      // Begin Swagger UI call region
      const ui = SwaggerUIBundle({
        url : window.location.href.replace(window.location.hash, "").replace(/[^/]+$/, "swagger.json"),
        dom_id: '#swagger-ui',
        deepLinking: true,
        presets: [
          SwaggerUIBundle.presets.apis,
          SwaggerUIStandalonePreset
        ],
        plugins: [
          SwaggerUIBundle.plugins.DownloadUrl
        ],
        layout: "StandaloneLayout"
      })
      // End Swagger UI call region

      window.ui = ui
    }

7、整合ThinkPHP 和 swaggerUI：

在 public 目录下新建 api.php 

<?php

// +----------------------------------------------------------------------
// | ThinkPHP SWAGGER [ 够用就好 ]
// +----------------------------------------------------------------------
// | Copyright (c) 2016 http://jitlee.com All rights reserved.
// +----------------------------------------------------------------------
// | Licensed ( http://jitlee.com/licenses/LICENSE-1.0 )
// +----------------------------------------------------------------------
// | Author: Jitlee.Wan <www.wpj@163.com>
// +----------------------------------------------------------------------

// 定义应用目录
define('APP_PATH', __DIR__ . '/../application');

$tags = array(); // Tags对象
$paths = array(); // Path数组

$module_dir = opendir(APP_PATH);
while (($module_name = readdir($module_dir)) !== false) {
    if ($module_name != 'api') continue; //可以自己设置需要哪些模块用作api输出页面
    $module_path = APP_PATH . DIRECTORY_SEPARATOR . $module_name;    //构建子目录路径
    if (is_dir($module_path)) {
        $module = strtolower($module_name);

        $module_child_dir = opendir($module_path);
        while (($module_child_name = readdir($module_child_dir)) !== false) {
            $module_child_path = $module_path . DIRECTORY_SEPARATOR . $module_child_name;    //构建子目录路径
            if (is_dir($module_child_path) && $module_child_name == 'controller') {
                $controller_dir = opendir($module_child_path);
                while (($controller_file = readdir($controller_dir)) !== false) {
                    $controller_path = $module_child_path . DIRECTORY_SEPARATOR . $controller_file;    //构建子目录路径
                    $controller_name = strtolower(basename($controller_path, '.php'));
                    $contents = file_get_contents($controller_path);
                    if (preg_match_all('/swagger:s*([^
]+)/i', $contents, $swagger_matches)) {

                        // 添加tag
                        $found_tag = false;
                        foreach ($tags as $tag) {
                            if ($tag['name'] == $controller_name) {
                                $found_tag = true;
                                break;
                            }
                        }
                        if (!$found_tag) {
                            array_push($tags, array(
                                'name'            => $controller_name,
                                'description'    => $swagger_matches[1][0]
                            ));
                        }

                        // 添加path
                        if (preg_match_all('//*((?!*/).)+*//s', $contents, $func_matches)) {
                            $length = count($func_matches[0]);
                            if ($length > 1) {
                                for ($i = 1; $i < $length; $i++) {
                                    $func_array = array();

                                    // 解析每个方法
                                    $func_contents = $func_matches[0][$i];

                                    // 方法说明
                                    if (!preg_match_all('/(get|post|delete)s*:s*([^
]+)/i', $func_contents, $matches)) {
                                        break;
                                    }
                                    $method = $matches[1][0];
                                    $summary = $matches[2][0];

                                    // 路径
                                    if (!preg_match_all('/paths*:s*([^
]+)/i', $func_contents, $matches)) {
                                        break;
                                    }
                                    $path = $matches[1][0];

                                    // 方法名称
                                    $operations = explode('/', $path);
                                    $operationId = $operations[0];
                                    if (preg_match_all('/methods*:s*([^
]+)/i', $func_contents, $matches)) {
                                        $operationId = $matches[1][0];
                                    }

                                    $paths[$path] = array();
                                    $parameters = array();
                                    $func = array(
                                        'tags'            => [$controller_name],
                                        'summary'        => $summary,
                                        'description'    => '',
                                        'operationId'    => $operationId,
                                        'produces'        => ['application/json']
                                    );

                                    // 参数
                                    $pattern = '/params*:s*(?<name>w+)s*-s*{(?<type>w+(?<array>[])?)}s*(=s*(([(?<enum>[^]]+)])|(?<default>[^s]+))s*)?(?<summary>[^*]+)/i';
                                    if (preg_match_all($pattern, $func_contents, $matches)) {
                                        $names = $matches['name'];         // 参数名称
                                        $types = $matches['type'];         // 参数类型
                                        $enums = $matches['enum'];         // 参数枚举
                                        $defaults = $matches['default']; // 默认值
                                        $summarys = $matches['summary']; // 参数说明
                                        $arrays = $matches['array']; // 参数说明

                                        $params_count = count($names);
                                        for ($j = 0; $j < $params_count; $j++) {
                                            $in = $method == 'get' ? 'query' : 'formData';
                                            if (strpos($path, '{' . $names[$j] . '}') !== false) {
                                                $in = 'path';
                                            }

                                            $parameter = array(
                                                'name'            => $names[$j],
                                                'in'                => $in,
                                                'required'        => true,
                                                'description'    => $summarys[$j]
                                            );

                                            if ($defaults[$j] !== '') {
                                                $parameter['required'] = false;
                                                $parameter['defaultValue'] = $defaults[$j];
                                            }

                                            $type = str_replace('[]', '', $types[$j]);
                                            if ($type == 'int') {
                                                $type = 'integer';
                                            }

                                            if ($arrays[$j] != '') { // 是否数据参数
                                                $parameter['type'] = 'array';
                                                $parameter['items'] = array(
                                                    'type'    => str_replace('[]', '', $type)
                                                );
                                                $parameter['collectionFormat'] = 'brackets'; // url带中括号
                                                //                                                $parameter['collectionFormat'] = 'multi'; // url不带中括号
                                            } else if ($enums[$j] != '') { // 是否枚举参数
                                                $enum = explode('|', $enums[$j]);
                                                $parameter['type'] = $type;
                                                $parameter['enum'] = $enum;
                                            } else {
                                                $parameter['type'] = $type;
                                            }
                                            array_push($parameters, $parameter);
                                        }
                                    }
                                    $func['parameters'] = $parameters;
                                    // 生成api访问路径
                                    $paths['/' . $module . '/' . $controller_name . '/' . $path][$method] = $func;
                                }
                            }
                        }
                    }
                }
                closedir($controller_dir);
            }
        }
        closedir($module_child_dir);
    }
}
closedir($module_dir);

$swagger = array(
    'swagger'    => '2.0',
    'info'        => array(
        'description'    => 'APP 后台服务',
        'version'        => '1.0.0',
        'title'            => '［我的APP］Swagger',
        'termsOfService' => 'http://www.ritacc.cn/',
        'contact'        => array(
            'email'        => 'www.wpj@163.com'
        ),
        'license'        => array(
            'name'        => 'Apache 2.0',
            'url'        => 'http://www.apache.org/licenses/LICENSE-2.0.html'
        )
    ),
    'host'        => $_SERVER['SERVER_NAME'] . ':' . $_SERVER['SERVER_PORT'],
    'basePath'    => '',
    'tags'        => $tags,
    'schemes'    => [
        'http'
    ],
    'paths'        => $paths,
    'securityDefinitions' => array(),
    'definitions' => array(),
    'externalDocs' => array(
        'description'    => 'Find out more about Swagger',
        'url'            => 'http://swagger.io'
    )
);

$jsonFile = fopen("swagger/swagger.json", "w") or die("Unable to open file!");
fwrite($jsonFile, json_encode($swagger));
fclose($jsonFile);

// 跳转到Swagger UI
$url = '/swagger/index.html';
Header('HTTP/1.1 303 See Other');
Header("Location: $url");
exit;

8、打开浏览器运行 public 下的 api.php 就 ok 了。