Validation校验属性格式

Validation校验属性格式

基于javax.validation.Validation校验属性格式

一、maven依赖

<dependency>
    <groupId>javax.validationgroupId>
    <artifactId>validation-apiartifactId>
    <version>1.0.0.GAversion>
dependency>
<dependency>
    <groupId>org.hibernategroupId>
    <artifactId>hibernate-validatorartifactId>
    <version>4.3.1.Finalversion>
dependency>

二、代码示列

package validation;

import javax.validation.constraints.NotNull;
import javax.validation.constraints.Size;

public class Address {

    @NotNull
    @Size(max = 30)
    private String addressline1;

    @Size(max = 30)
    private String addressline2;

    private String zipCode;

    private String city;

    public String getAddressline1() {
        return addressline1;
    }

    public void setAddressline1(String addressline1) {
        this.addressline1 = addressline1;
    }

    public String getAddressline2() {
        return addressline2;
    }

    public void setAddressline2(String addressline2) {
        this.addressline2 = addressline2;
    }

    public String getZipCode() {
        return zipCode;
    }

    public void setZipCode(String zipCode) {
        this.zipCode = zipCode;
    }

    @Size(max = 30)
    @NotNull
    public String getCity() {
        return city;
    }

    public void setCity(String city) {
        this.city = city;
    }
}

package validation;

import javax.validation.ConstraintViolation;
import javax.validation.Validation;
import javax.validation.Validator;
import javax.validation.ValidatorFactory;
import java.util.Set;

/**
 * Created by zhengyong on 17/1/17.
 */
public class ValidationTest {

    public static void main(String[] args) {
        Address address = new Address();
        address.setAddressline1(null);
        address.setAddressline2(null);
        address.setCity("Llanfairpwllgwyngyllgogerychwyrndrobwyll-llantysiliogogogoch");
        ValidatorFactory factory = Validation.buildDefaultValidatorFactory();
        Validator validator = factory.getValidator();

        Set> constraintViolations = validator.validate(address);

        for (ConstraintViolation
 constraintViolation : constraintViolations) {
            System.out.println(constraintViolation.getPropertyPath() + ":" + constraintViolation.getMessage());
        }
    }
}

三、运行结果

city:个数必须在0和30之间
addressline1:不能为null

四、注意事项

异常：

Caused by: java.lang.NoClassDefFoundError: javax/validation/ParameterNameProvider
    at org.hibernate.validator.HibernateValidator.createGenericConfiguration(HibernateValidator.java:41)
    at javax.validation.Validation$GenericBootstrapImpl.configure(Validation.java:269)
    at javax.validation.Validation.buildDefaultValidatorFactory(Validation.java:111)
    at org.hibernate.cfg.beanvalidation.TypeSafeActivator.getValidatorFactory(TypeSafeActivator.java:445)
    at org.hibernate.cfg.beanvalidation.TypeSafeActivator.activate(TypeSafeActivator.java:96)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
    at java.lang.reflect.Method.invoke(Unknown Source)
    at org.hibernate.cfg.beanvalidation.BeanValidationIntegrator.integrate(BeanValidationIntegrator.java:150)
    ... 50 more

解决参考：http://www.xuebuyuan.com/1955429.html