在Spring MVC中验证 [英] Validation in Spring MVC

问题描述

如何在验证器类中获取请求对象，因为我需要验证内容，即请求对象中存在的参数。

how to get the request object in the validator class, as i need to validate the contents ie the parameters present in the request object.

推荐答案

不是100％确定我正确地关注了你的问题，但是使用Spring MVC，你将对象传递给方法并且注释它（至少在Spring 3中），如下所示：

Not 100% sure I'm following your question correctly, but with Spring MVC, you pass the object into the method and annotate it (at least with Spring 3), like so:

@RequestMethod(value = "/accounts/new", method = RequestMethod.POST)
public String postAccount(@ModelAttribute @Valid Account account, BindingResult result) {
    if (result.hasErrors()) {
        return "accounts/accountForm";
    }

    accountDao.save(account);
}

这里的相关注释是@Valid，它是JSR-303的一部分。包括BindingResult参数，以便您可以检查错误，如上所示。

The relevant annotation here is @Valid, which is part of JSR-303. Include the BindingResult param as well so you have a way to check for errors, as illustrated above.

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