BeanUtils.copyProperties和beanCopier.copy的性能差距

public static void main(String[] args) {
        MobileCardCompanyDO cardPayOrderModel = new MobileCardCompanyDO();
        cardPayOrderModel.setCompanyCode("HS");
        cardPayOrderModel.setCompanyDesc("a1231241241awdasdf");
        cardPayOrderModel.setCompanyName("123124dzvsds");
        cardPayOrderModel.setId(2l);
        cardPayOrderModel.setStatus("1");
        CompanyModel companyModel = new CompanyModel();

        /**
         * 10W次 
         * BeanUtils.copyProperties：718 
         * beanCopier.copy：56
         */

        /**
         * 100W次 
         * BeanUtils.copyProperties：5673 
         * beanCopier.copy：70
         */

        //BeanUtils性能
        long start = System.currentTimeMillis();
        for (int i = 0; i < 1000000; i++) {
            BeanUtils.copyProperties(cardPayOrderModel, companyModel);
        }
        long end = System.currentTimeMillis();
        System.out.println(end - start);

        //BeanCopier性能
        long start1 = System.currentTimeMillis();
        BeanCopier beanCopier = BeanCopier.create(MobileCardCompanyDO.class, CompanyModel.class,
            false);
        for (int i = 0; i < 1000000; i++) {
            beanCopier.copy(cardPayOrderModel, companyModel, null);
        }
        long end1 = System.currentTimeMillis();
        System.out.println(end1 - start1);
    }

如果系统中有很多属性拷贝，对系统的性能还是有影响的。建议使用cglib。

评论

1 楼 zyq521140 2018-01-16  

    受益匪浅