Yii2后端接收application/json类型POST请求的解决方案

let csrfToken = document.querySelector("meta[name='csrf-token']").content;
let csrfParam = document.querySelector("meta[name='csrf-param']").content;

fetch("http://site.se/react/save-babysitter", {
  method: "POST",
  headers: {
    "Content-Type": "application/json",
    "Accept": "application/json",
    "csrf-param": csrfParam, // Yii2 CSRF参数
    "X-CSRF-Token": csrfToken // Yii2 CSRF令牌
  },
  body: JSON.stringify({
    'id': 123,
    'name': 'Test Name'
  })
}).then(response => response.json())
  .then((data) => console.log(data));

public function actionSaveBabysitter()
{
    $request = Yii::$app->request;
    $postData = $request->post('name'); // 此时 $postData 将为 null

    // 如果尝试获取所有POST数据
    // $allPostData = $request->post(); // 此时 $allPostData 将为空数组

    echo json_encode(['received_data' => $postData]);
    Yii::$app->end();
}

// config/web.php 或 config/main.php
return [
    'components' => [
        'request' => [
            // !!! insert a secret key in the following (if it is empty) - this is required by cookie validation
            'cookieValidationKey' => 'your-secret-key',
            'enableCsrfValidation' => true, // 确保CSRF验证开启
            'parsers' => [
                'application/json' => 'yii\web\JsonParser',
                // 如果还需要处理XML或其他类型，也可以在此处添加
                // 'application/xml' => 'yii\web\XmlParser',
            ],
            // ... 其他 request 组件的配置
        ],
        // ... 其他组件配置
    ],
    // ... 其他顶级配置
];

public function actionSaveBabysitter()
{
    $request = Yii::$app->request;

    // 获取所有解析后的POST数据
    $allPostData = $request->post();

    // 获取特定字段，例如 'name'
    $name = $request->post('name');
    $id = $request->post('id');

    // 可以在此处对 $allPostData, $name, $id 进行业务逻辑处理
    // 例如：保存到数据库，验证数据等

    // 返回响应
    if ($name && $id) {
        return $this->asJson([
            'status' => 'success',
            'message' => 'Data received successfully!',
            'received_id' => $id,
            'received_name' => $name
        ]);
    } else {
        return $this->asJson([
            'status' => 'error',
            'message' => 'Missing required data.'
        ]);
    }
}