Spring 4中的@PathVariable验证
我如何在Spring验证我的路径变量。我想验证id字段,因为我不想将其移到Pojo,因为它只有一个字段
@RestControllerpublic class MyController {
@RequestMapping(value = "/{id}", method = RequestMethod.PUT)
public ResponseEntity method_name(@PathVariable String id) {
/// Some code
}
}
我尝试在路径变量中添加验证,但仍无法正常工作
@RestController @Validated
public class MyController {
@RequestMapping(value = "/{id}", method = RequestMethod.PUT)
public ResponseEntity method_name(
@Valid
@Nonnull
@Size(max = 2, min = 1, message = "name should have between 1 and 10 characters")
@PathVariable String id) {
/// Some code
}
}
回答:
您需要在Spring配置中创建一个bean:
@Bean public MethodValidationPostProcessor methodValidationPostProcessor() {
return new MethodValidationPostProcessor();
}
您应该将@Validated
注释留在控制器上。
而且您需要在MyController
类中使用Exceptionhandler 处理ConstraintViolationException
:
@ExceptionHandler(value = { ConstraintViolationException.class }) @ResponseStatus(value = HttpStatus.BAD_REQUEST)
public String handleResourceNotFoundException(ConstraintViolationException e) {
Set<ConstraintViolation<?>> violations = e.getConstraintViolations();
StringBuilder strBuilder = new StringBuilder();
for (ConstraintViolation<?> violation : violations ) {
strBuilder.append(violation.getMessage() + "\n");
}
return strBuilder.toString();
}
进行这些更改之后,您将在验证成功时看到您的消息。
PS:我只是在您的@Size
验证下尝试过。
以上是 Spring 4中的@PathVariable验证 的全部内容, 来源链接: utcz.com/qa/418610.html