在多个类的spring MVC控制器中应用自定义验证器

// 自定义验证器类
public class CustomValidator implements Validator {
    @Override
    public boolean supports(Class<?> clazz) {
        return YourModelClass.class.equals(clazz);
    }

    @Override
    public void validate(Object target, Errors errors) {
        ValidationUtils.rejectIfEmptyOrWhitespace(errors, "fieldName", "errorCode", "Error message");
        // 添加其他验证逻辑
    }
}

// 控制器类
@Controller
public class YourController {
    @Autowired
    private CustomValidator customValidator;

    @InitBinder
    protected void initBinder(WebDataBinder binder) {
        binder.addValidators(customValidator);
    }

    @RequestMapping("/yourEndpoint")
    public String yourMethod(@Valid YourModelClass model, BindingResult result) {
        if (result.hasErrors()) {
            // 处理验证错误
        }
        // 处理正常逻辑
    }
}