java指定用于bean的验证组
规范:hibernate验证程序[5.2.4.Final],spring上下文[4.2.2.RELEASE]
我正试图使here 描述的解决方案如下所示。但没有遇到违反约束的情况&;一切都很顺利。为什么?
我有两个孩子,一个是父母,另一个是孩子。儿童定义如下
package code;
import javax.validation.constraints.NotNull;
import org.hibernate.validator.constraints.NotBlank;
import org.hibernate.validator.constraints.NotEmpty;
import org.springframework.stereotype.Service;
import org.springframework.validation.annotation.Validated;
@Service("SampleBean")
@Validated
public class SampleBean {
@NotNull(message= "value can not be null" , groups = Group1.class)
// @NotNull(message= "value can not be null")
private Integer value;
@NotNull(message= "value1 can not be null" , groups = Group2.class)
// @NotNull(message= "value can not be null" )
private Integer value1;
public Integer getValue() {
return value;
}
public void setValue(@NotNull
Integer value) {
this.value = value;
}
public Integer getValue1() {
return value1;
}
public void setValue1(Integer value1) {
this.value1 = value1;
}
}
父bean定义如下:
package code;
import javax.validation.Valid;
import javax.validation.constraints.NotNull;
import org.springframework.stereotype.Service;
import org.springframework.validation.annotation.Validated;
@Service("SampleBeanParent")
@Validated
public class SampleBeanParent {
public void acceptChildBean(@NotNull(message = "child cannot be null")
// @Valid
@Validated(Group1.class)
SampleBean childBean) throws NoSuchMethodException, SecurityException{
System.out.println("successfully finished");
}
}
测试类如下所示
package code;
import java.util.ArrayList;
import java.util.List;
import javax.validation.ConstraintViolation;
import javax.validation.ConstraintViolationException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
public class Test {
public static void main(String[] args) throws NoSuchMethodException, SecurityException{
ApplicationContext context = new AnnotationConfigApplicationContext(SpringConfiguration.class);
SampleBean sampleBean = (SampleBean) context.getBean("SampleBean");
try{
SampleBeanParent parent = (SampleBeanParent) context.getBean("SampleBeanParent");
parent.acceptChildBean(sampleBean);
}
catch(ConstraintViolationException e){
System.out.println("there were validation errors");
}
}
}
顺便说一下,我已经设置了适当的spring级别bean,如下所示&;它在没有组的情况下工作得很好(我已经对上面代码中的验证行进行了注释,没有工作案例的组)。所以这不是问题:)
package code;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.ComponentScan;
import org.springframework.context.annotation.Configuration;
import org.springframework.validation.beanvalidation.LocalValidatorFactoryBean;
import org.springframework.validation.beanvalidation.MethodValidationPostProcessor;
@Configuration
@ComponentScan(basePackageClasses = {SampleBean.class})
public class SpringConfiguration {
@Bean(name = "validator")
public LocalValidatorFactoryBean initValidatorFactory(){
return new LocalValidatorFactoryBean();
}
@Bean
public MethodValidationPostProcessor initValidationPostProcessor(){
return new MethodValidationPostProcessor();
}
}
# 1 楼答案
我可以这样做。更改的类如下所示(从特定问题的角度来看,我删除了代码中似乎多余/不必要的所有内容)
还请参考此线程:Spring @Validated in service layer,它包含几个有用的要点,其中引用了其中一个答案:
“@Validated注释仅用于指定验证组,它本身并不强制任何验证。您需要使用javax.validation注释之一,如@Null或@Valid。”-指示示例中的
@Validated(Group1.class) SampleBean childBean
似乎不正确最后一个答案是讨论在方法参数上除了@Valid之外还有另一个注释的具体情况,就像在您的例子中还有@NotNull(message=“child cannot be null”)