Question

我正在编写我的第一个春季启动应用程序而且我遇到了这个问题。我无法向用户显示错误消息。没有该数据的对象不会保存在数据库中，这没关系。但显示错误消息是问题所在。当我调试我得到错误size = 0

这是模型

hadoop fs

控制器

@Size(min = 1, message = "Address is invalid.")
@NotNull
@Column
private String address;

Thymeleaf

@RequestMapping(value = "/create", method = RequestMethod.POST, consumes = MediaType.APPLICATION_FORM_URLENCODED_VALUE)
public String createNewBusiness(@Valid @ModelAttribute("business") Business business,
                                BindingResult result, Model model) {
    model.addAttribute("userEmail", getUserEmail());
    logger.info("/business/create:" + business.toString());
    LocationResponse locationResponse = geoService.getCoords(business.getAddress());

    if (locationResponse.getStatus().equals("OK")) {
        business.setLatitude(locationResponse.getResults().get(0).getGeometry().getLocation().getLat());
        business.setLongitude(locationResponse.getResults().get(0).getGeometry().getLocation().getLng());
        business.setUserId(getUserId());

        businessService.createNew(business);

        model.addAttribute("business", business);

    } else {
        business.setAddress(null);
        model.addAttribute("business", business);
    }

    if (result.hasErrors()) {
        List<FieldError> errors = result.getFieldErrors();
        for (FieldError error : errors ) {
            System.out.println (error.getObjectName() + " - " + error.getDefaultMessage());
        }
        return "newBusiness";
    }

    return "business";
}

Answer 1

您是否在Validator中定义了@SpringBootApplication？

@SpringBootApplication
public class Application {
    public static void main(String[] args) {
        SpringApplication.run(Application.class);
    }

    @Bean
    public Validator validator() {
        return new LocalValidatorFactoryBean();
    }
}

Spring Boot错误消息不起作用

1 个答案: