如何在使用Symfony Serializer时修复DateTimeNormalizer问题

Question

我无法使用Symfony Serializer将DateTime对象规范化为字符串。

我使用以下代码：

protected function createResponse($data, Int $statusCode){

    $serializedData = $this->serialize($data);

    return new Response($serializedData, $statusCode, array(
        'Content-Type' => 'application/json',
    ));

}

protected function serialize($data, string $format = 'json')
{
    $encoders = [new JsonEncoder()];
    $normalizers = [new ObjectNormalizer(), new DateTimeNormalizer()];

    $serializer = new Serializer($normalizers, $encoders);

    return $serializer->serialize($data, $format);
}

我将包含DateTimeInterface变量的实体传递到上面定义的createResponse方法，但日期没有规范化为RFC3339格式。我错过了一个重要的步骤吗？

我得到的示例输出：

"reportDate":{"timezone":{"name":"UTC","transitions":[{"ts":-9223372036854775808,"time":"-292277022657-01-27T08:29:52+0000","offset":0,"isdst":false,"abbr":"UTC"}],"location":{"country_code":"??","latitude":0,"longitude":0,"comments":""}},"offset":0,"timestamp":1551398400}

Answer 1

tl; dr命令事项。

尝试：

$normalizers = [new DateTimeNormalizer(), new ObjectNormalizer()];

代替：

$normalizers = [new ObjectNormalizer(), new DateTimeNormalizer()];