[Java] 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);