Question

在我的pom.xml文件中，我添加了这些延迟的依赖项

 <dependency>
     <groupId>org.glassfish.jersey.ext</groupId>
     <artifactId>jersey-bean-validation</artifactId>
     <version>2.25.1</version>
  </dependency>

并且在我的CustomApplication类中扩展了ResourceConfig我注册了这2个以下的属性

property(ServerProperties.BV_SEND_ERROR_IN_RESPONSE, true); 
property(ServerProperties.BV_DISABLE_VALIDATE_ON_EXECUTABLE_OVERRIDE_CHECK, true);

我有像这样的DTO（POJO）

import java.util.ArrayList;
import javax.validation.constraints.NotNull;
import org.hibernate.validator.constraints.NotBlank;

public class PlotDTO {

private String guid;
@NotNull
private String plot_name;
@NotNull
private String farmer_id;
@NotNull
private float distance_from_warehouse;
@NotNull
private int area;
@NotNull
private float sand;
.............
.............
}

在我的资源类中，我正在尝试使用g @Valid

来验证这一点

@Path("addplot")
@POST
@Produces(MediaType.APPLICATION_JSON)
@Consumes(MediaType.APPLICATION_JSON)
public Response addPlot(@Valid PlotDTO plot) 
{
 ..............
 ..............
}

当我发送请求时，这些@NotNull验证都没有工作

有人可以帮助我吗

Answer 1

@NotNull

注释仅对字符串和包装器有效。它不适用于int，float和boolean等原语，因为它们已经有默认值。

Answer 2

请执行以下操作以获得验证。它对我有用。

为Spring实现Validator，InitializingBean的类
为Jersey配置实现ContextResolver<ValidationConfig>的类。

实施ExceptionMaper<ConstraintViolationException>

的班级

@Component
public class BeanValidator implements Validator,InitializingBean {
    private Validator validator;

    public void afterPropertiesSet() throws Exception {
        ValidatorFactory validatorFactory = Validation.buildDefaultValidatorFactory();
        validator = validatorFactory.usingContext().getValidator();
    }

    public boolean supports(Class clazz) {
        return true;
    }

    public void validate(Object target, Errors errors) {
        Set<ConstraintViolation<Object>> constraintViolations = validator.validate(target);
        for (ConstraintViolation<Object> constraintViolation : constraintViolations) {
            String propertyPath = constraintViolation.getPropertyPath().toString();
            String message = constraintViolation.getMessage();
            errors.rejectValue(propertyPath, "", message);
        }
    }

    @Override
    public ExecutableValidator forExecutables() {
        // TODO Auto-generated method stub
        return null;
    }

    @Override
    public BeanDescriptor getConstraintsForClass(Class<?> arg0) {
        // TODO Auto-generated method stub
        return null;
    }

    @Override
    public <T> T unwrap(Class<T> arg0) {
        // TODO Auto-generated method stub
        return null;
    }

    @Override
    public <T> Set<ConstraintViolation<T>> validate(T arg0, Class<?>... arg1) {
        // TODO Auto-generated method stub
        return null;
    }

    @Override
    public <T> Set<ConstraintViolation<T>> validateProperty(T arg0, String arg1, Class<?>... arg2) {
        // TODO Auto-generated method stub
        return null;
    }

    @Override
    public <T> Set<ConstraintViolation<T>> validateValue(Class<T> arg0, String arg1, Object arg2, Class<?>... arg3) {
        // TODO Auto-generated method stub
        return null;
    }
}

2. Jersey configuration Classes.
@Provider
public class ValidationConfigurationContextResolver implements ContextResolver<ValidationConfig> {
    @Context
    private ResourceContext resourceContext;    

    /**Get a context*/
    @Override
    public ValidationConfig getContext(Class<?> type) {
        final ValidationConfig config = new ValidationConfig();
        config.constraintValidatorFactory(resourceContext.getResource(InjectingConstraintValidatorFactory.class));
        config.parameterNameProvider(new CustomParameterNameProvider());
        return config;
    }

    private class CustomParameterNameProvider implements ParameterNameProvider {
        private final ParameterNameProvider nameProvider;
        public CustomParameterNameProvider() {
            nameProvider = Validation.byDefaultProvider().configure().getDefaultParameterNameProvider();
        }

        @Override
        public List<String> getParameterNames(final Constructor<?> constructor) {
            return nameProvider.getParameterNames(constructor);
        }

        @Override
        public List<String> getParameterNames(final Method method) {
            return nameProvider.getParameterNames(method);
        }
    }
}

如果你使用maven，你可以使用ValidationMessages.properties放入资源路径来实现内化和本地化。请参阅以下链接Github- bean-validation-webapp

@Valid Bean验证不适用于球衣

2 个答案: