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BeanUtils.copyProperties跟beanCopier.copy的性能差距

2012-10-29 
BeanUtils.copyProperties和beanCopier.copy的性能差距public static void main(String[] args) {MobileCa

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。

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