JAVA中通过Hibernate-Validation进行参数验证

<dependency>

   <groupid>org.hibernate</groupid>

   <artifactid>hibernate-validator</artifactid>

   <version> 4.3 . 1 . final </version>

</dependency>

import javax.validation.constraints.pattern;

import javax.validation.constraints.size;

import org.hibernate.validator.constraints.notempty;

public class payrequestdto {

   /**

    * 支付完成时间

    **/

   @notempty (message= "支付完成时间不能空" )

   @size (max= 14 ,message= "支付完成时间长度不能超过{max}位" )

   private string paytime;

   /**

    * 状态

    **/

   @pattern (regexp = "0[0123]" , message = "状态只能为00或01或02或03" )

   private string status;

   public string getpaytime() {

     return paytime;

   }

   public void setpaytime(string paytime) {

     this .paytime = paytime;

   }

   public string getstatus() {

     return status;

   }

   public void setstatus(string status) {

     this .status = status;

   }

}

import java.util.set;

import javax.validation.constraintviolation;

import javax.validation.validation;

import javax.validation.validator;

import org.hibernate.validator.hibernatevalidator;

import com.atai.framework.lang.appexception;

public class validationutils {

   /**

    * 使用hibernate的注解来进行验证

    *

    */

   private static validator validator = validation

       .byprovider(hibernatevalidator. class ).configure().failfast( true ).buildvalidatorfactory().getvalidator();

   /**

    * 功能描述: <br>

    * 〈注解验证参数〉

    *

    * @param obj

    * @see [相关类/方法](可选)

    * @since [产品/模块版本](可选)

    */

   public static <t> void validate(t obj) {

     set<constraintviolation<t>> constraintviolations = validator.validate(obj);

     // 抛出检验异常

     if (constraintviolations.size() > 0 ) {

       throw new appexception( "0001" , string.format( "参数校验失败:%s" , constraintviolations.iterator().next().getmessage()));

     }

   }

}

validationutils.validate(requestdto);