spring项目非controller方法上使用@Valid / service类方法使用@Valid校验参数

top:参考博客：

    https://blog.csdn.net/f641385712/article/details/97402946

1. 方法校验bean添加到spring容器:

import org.hibernate.validator.HibernateValidator;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.validation.beanvalidation.MethodValidationPostProcessor;
import javax.validation.Validation;
import javax.validation.Validator;

@Configuration
public class ValidConfigBean {

    @Bean
    public MethodValidationPostProcessor methodValidationPostProcessor() {
        MethodValidationPostProcessor postProcessor = new MethodValidationPostProcessor();
        postProcessor.setBeforeExistingAdvisors(true);
        postProcessor.setProxyTargetClass(true);
        postProcessor.setValidator(validator());
        return postProcessor;
    }
    /**
     * 开启快速失败模式，一旦失败立即抛出异常
     *
     * @return
     */
    @Bean
    public Validator validator() {
        return Validation.byProvider(HibernateValidator.class).configure().failFast(true).buildValidatorFactory().getValidator();
    }
}

2. 校验配置

2.1 自定义校验组:

public interface GroupInsert {
}

2.2 自定义model：

@Data
public class ValidDto {
    @NotNull(groups = GroupInsert.class)
    private Integer validInteger;
    @NotBlank
    private String validString;
}

2.3 接口校验规则定义：@NotBlank,@Valid…

public interface ValidService {
    /**
     * 校验参数
     * @param id
     * @return
     */
    String normal(@NotBlank String id);
    /**
     * 校验model
     * 默认：@Validated(Default.class)
     * @param validDto
     * @return
     */
    String normalObject(@Valid ValidDto validDto);
    /**
     * 校验model-指定组
     * normalObject 默认:@Validated(Default.class)
     * @param validDto
     * @return
     */
    @Validated(GroupInsert.class)
    String groupObject(@Valid ValidDto validDto);
}

2.4 实现类声明支持校验参数：@Validated

@Service
@Validated
public class ValidServiceImpl interface ValidService{
    // 实现方法...
}

2.5 controller示例：

@RestController
@RequestMapping
public class TestValidController {

    @Resource
    private ValidService validService;

    @GetMapping("/normal")
    public String normal(@RequestParam("id") String id) {
        return validService.normal(id);
    }

    @GetMapping("/normalObject")
    public String normalObject(@ModelAttribute ValidDto validDto) {
        return validService.normalObject(validDto);
    }

    @GetMapping("/groupObject")
    public String groupObject(@ModelAttribute ValidDto validDto) {
        return validService.groupObject(validDto);
    }

}