1.composer添加swg依赖

composer.json添加:

"yii2mod/yii2-swagger": "*",

执行composer update

2.配置swg

在SiteController添加下边代码：

/**
     * @SWG\Swagger(
     *     basePath="/",
     *     schemes={"http","https"}, 
     *     produces={"application/json"},
     *     consumes={"application/json"},
     *     @SWG\ExternalDocumentation(description="Swagger官方文档",url="https://bfanger.nl/swagger-explained/#schemaObject"),
     *     @SWG\Info(version="1.0", title="SWG标题", description="SWG接口文档"),
     *     @SWG\Tag(name="模块", description="模块"), //文档模块
     * )
     */
    public function actions()
    {
        return [
            'docs' => [
                'class' => 'yii2mod\swagger\SwaggerUIRenderer',
                'restUrl' => Url::to(['site/json-schema']),
            ],
            'json-schema' => [
                'class' => 'yii2mod\swagger\OpenAPIRenderer',
                'scanDir' => [
                    Yii::getAlias('@app/modules/release/controllers'),
                    Yii::getAlias('@app/modules/release/models')
                ],
            ],
        ];
    }

3.代码添加swg注释

在需要配置的方法添加swg注释：

/**
     * @SWG\Post(
     *     path="/release/content-list",
     *     tags={"Content"},
     *     summary="获取内容列表",
     *     @SWG\Parameter(
     *          name="rawBody",
     *          in="body",
     *          description="传入参数",
     *          required=true,
     *          type="string",
     *          @SWG\Schema(ref="#/definitions/InContentList") //输入参数注释文件（详见InContentList.php）
     *     ),
     *     @SWG\Response(
     *         response = 200,
     *         description = "请求成功",
     *         @SWG\Schema(ref="#/definitions/OutContentList") //输出参数注释文件（详见OutContentList.php）
     *     ),
     *     @SWG\Response(
     *          response = 500,
     *          description = "请求失败",
     *     ),
     * )
     */
    public function actionContentList()
    {
    }

输入和输出swg注释：InBase,OutBase是输入和输出公共参数部分

InContentList:

/**
 * @SWG\Definition(required={"name"}) //这里的注释必须写 required 里边是必须字段
 */
class InContentList
{
    /**
    * @SWG\Property(
    *     type="string", //参数类型
    *     example="Jade", //参数实例
    *     description="名称" //参数注释
    * )
    */
    public $name;
}

OutContentList:
/**
 * @SWG\Definition() //这里的注释必须写
 */
class OutContentList
{
    /**
     *    @SWG\Property(
     *       type="array", //参数类型
     *          @SWG\Items(
     *          @SWG\Property(
     *              property="id", //数组包含字段
     *              type="string", //字段类型
     *              description="ID" //字段描述
     *          ),
     *          @SWG\Property(
     *              property="name",
     *              type="string",
     *              description="名称"
     *          ),
     *          @SWG\Property(
     *              property="address",
     *              type="string",
     *              description="地址"
     *          ),
     *     )
     * )
     */
    public $list; //返回数组
}