验证路径变量大小

Question

我发现此示例如何验证路径变量：https://www.mkyong.com/spring-boot/spring-rest-validation-example/

@PostMapping(value = "/payment/{unique_transaction_id}")
      public ResponseEntity<StringResponseDTO> handleWpfMessage(@PathVariable("unique_transaction_id") @Valid @Max(32) String unique_transaction_id) throws Exception {

我可以添加@Valid的字符串@Max(32)限制的婴儿，还是必须按照课程中的说明在班级添加@Validated？

Answer 1

您可以为路径变量定义正则表达式

@PostMapping(value = "/payment/{unique_transaction_id:[a-zA-Z0-9]{0,32}}")