Validation校验属性格式

喜欢ヅ旅行 2022-07-11 05:42 294阅读 0赞

## 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.validation</groupId>
        <artifactId>validation-api</artifactId>
        <version>1.0.0.GA</version>
    </dependency>
    <dependency>
        <groupId>org.hibernate</groupId>
        <artifactId>hibernate-validator</artifactId>
        <version>4.3.1.Final</version>
    </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<ConstraintViolation<Address>> constraintViolations = validator.validate(address);
    
            for (ConstraintViolation<Address> 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][http_www.xuebuyuan.com_1955429.html]

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