我计划我的Spring项目可以处理多个请求表单，例如：
{
"notification": "order_creation_notification",
"data": {
"date": "22 Jan 2022"
}
}和
{
"notification": "login_notification",
"data": {
"email": "johndoe@email.com",
"at": "LA, USA"
}
}因此，我创建了我的控制器和请求主体，如下所示：
- 下面是我的控制器：
@PostMapping(value="/")
public void createNotification(@RequestBody NotificationRequest request) {
...
}- 下面是我请求类：
第一个
但是，当我尝试使用此json主体执行POST时：
{
"notification": "login_notification",
"data": {
"email": "johndoe@email.com",
"at": "LA, USA"
}
}我得到一个错误，它说：
JSON parse error: Cannot construct instance of `LoginNotification` (although at least one Creator exists): cannot deserialize from Object value (no delegate- or property-based Creator); nested exception is com.fasterxml.jackson.databind.exc.MismatchedInputException: Cannot construct instance of `LoginNotification` (although at least one Creator exists): cannot deserialize from Object value (no delegate- or property-based Creator)\n at [Source: (org.springframework.util.StreamUtils$NonClosingInputStream); line: 8, column: 13] (through reference chain: NotificationRequest[\"data\"])
1条答案
按热度按时间3zwjbxry1#
您的代码几乎是正确的。
只是不要在
OrderCreationNotification中使用Date date。使用字段
String date，并以自定义方式将String转换为Date。