Question

我有一个要求，我需要验证我的@RequestParam，以便与我的模式相匹配

示例：

 @RequestMapping(value = "/someTest")
  public Object sendWishes(@RequestParam("birthDate") String birthDate)

    {
      // i need birthDate to be a valid date format in YYYYMMDD format
      // if its not valid it should not hit this method
    }

Answer 1

应该很容易：

  @RequestMapping(value = "/someTest?birthDate={birthDate}")
  public Object sendWishes(@Valid @Pattern(regexp = "you-pattern-here") @RequestParam("birthDate") String birthDate)

  {
      // i need birthDate to be a valid date format in YYYYMMDD format
      // if its not valid it should not hit this method
  }

Answer 2

使用@DateTimeFormat

@RequestMapping(value = "/someTest")
public Object sendWishes(@RequestParam("birthDate") @DateTimeFormat(pattern="YYYYMMDD") LocalDate birthDate){ //Your code goes here }

Answer 3

InitBinder将用于服务目的。您应该在控制器中有以下init绑定代码：

@InitBinder
public void initBinder(WebDataBinder binder) {
    SimpleDateFormat dateFormat = new SimpleDateFormat("YYYYMMDD");

    binder.registerCustomEditor(Date.class, new CustomDateEditor(dateFormat, true));
}

之后，您可以在指定的YYYYMMDD中将birthDate作为日期对象：

@RequestMapping(value = "/someTest")
public Object sendWishes(@RequestParam("birthDate") Date birthDate)

我们可以用模式验证@RequestParam值吗？

3 个答案: