springmvc jsr303验证器在一个动作中与spring WebDataBinder验证器共存

由于springmvc 3.x现在支持jsr303和旧的spring style验证器,我想在我的示例应用程序中混合它们.但是只有一个方法为指定的控制器启用,是弹簧框架或JSR标准的限制吗？

这是我的示例代码.

User.java代表域模型,使用JSR303进行验证.

public class User{
    @Size(max = 16,message = "user loginId max-length is 16")
    private String loginId;
    //omit getter and setter
}

UserValidator.java,实现org.springframework.validation.Validator接口以支持用户验证.

public class UserValidator implements Validator {
    private UserService userService;
    public boolean supports(Class


UserController.java,使用InitBinder注释将UserValidator注入WebDataBinder.

@Controller("jspUserController")
@RequestMapping("/sys/users")
public class UserController {
    private UserValidator userValidator;
    @Autowired
    public void setUserValidator(UserValidator userValidator) {
        this.userValidator = userValidator;
    }
/*@InitBinder("user")
    public void initBinderUser(WebDataBinder binder) {
        binder.setValidator(userValidator);
    }*/
    @RequestMapping(value = "/save")
    public String save(@Valid User user,BindingResult bindingResult,Model model,HttpServletRequest request) {
        if (bindingResult.hasErrors()) {
            return "/sys/user/edit";
        }
        userService.saveUser(user);
        return "redirect:/sys/users/index";
    }
}
如果我取消注释UserController中的@InitBinder(“user”),将禁用JSR303验证.虽然当前注释的代码将使用JSR验证器来进行验证.
任何人都可以给我一个解决方法,将它们混合在一个控制器中？


最佳答案
您可以直接使用验证器,并让全局LocalValidatorfactorybean(JSR-303)也能正常工作：

    @Controller("jspUserController")
    @RequestMapping("/sys/users")
    public class UserController {
        private UserValidator userValidator;
        @Autowired
        public void setUserValidator(UserValidator userValidator) {
            this.userValidator = userValidator;
        }
        @RequestMapping(value = "/save")
        public String save(@Valid User user,HttpServletRequest request) {
            this.userValidator.validate(user,bindingResult);
            if (bindingResult.hasErrors()) {
                return "/sys/user/edit";
            }
            userService.saveUser(user);
            return "redirect:/sys/users/index";
        }
    }

springmvc jsr303验证器在一个动作中与spring WebDataBinder验证器共存

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