为什么阿里巴巴禁止使用Apache Beanutils进行属性的copy？

public class PersonDO {

    private Integer id;

    private String name;

    private Integer age;

    private Date birthday;

    //省略setter/getter

}

public class PersonDTO {

    private String name;

    private Integer age;

    private Date birthday;

}

private void mappingBySpringBeanUtils(PersonDO personDO, int times) {

    StopWatch stopwatch = new StopWatch();

    stopwatch.start();


    for (int i = 0; i < times; i++) {

        PersonDTO personDTO = new PersonDTO();

        org.springframework.beans.BeanUtils.copyProperties(personDO, personDTO);

    }

    stopwatch.stop();

    System.out.println("mappingBySpringBeanUtils cost :" + stopwatch.getTotalTimeMillis());

}

private void mappingByCglibBeanCopier(PersonDO personDO, int times) {

    StopWatch stopwatch = new StopWatch();

    stopwatch.start();

    for (int i = 0; i < times; i++) {

        PersonDTO personDTO = new PersonDTO();

        BeanCopier copier = BeanCopier.create(PersonDO.class, PersonDTO.class, false);

        copier.copy(personDO, personDTO, null);

    }

    stopwatch.stop();

    System.out.println("mappingByCglibBeanCopier cost :" + stopwatch.getTotalTimeMillis());

}

private void mappingByApacheBeanUtils(PersonDO personDO, int times)

    throws InvocationTargetException, IllegalAccessException {

    StopWatch stopwatch = new StopWatch();

    stopwatch.start();

    for (int i = 0; i < times; i++) {

        PersonDTO personDTO = new PersonDTO();

        BeanUtils.copyProperties(personDTO, personDO);

    }

    stopwatch.stop();

    System.out.println("mappingByApacheBeanUtils cost :" + stopwatch.getTotalTimeMillis());

}

private void mappingByApachePropertyUtils(PersonDO personDO, int times)

    throws InvocationTargetException, IllegalAccessException, NoSuchMethodException {

    StopWatch stopwatch = new StopWatch();

    stopwatch.start();

    for (int i = 0; i < times; i++) {

        PersonDTO personDTO = new PersonDTO();

        PropertyUtils.copyProperties(personDTO, personDO);

    }

    stopwatch.stop();

    System.out.println("mappingByApachePropertyUtils cost :" + stopwatch.getTotalTimeMillis());

}

public static void main(String[] args)

    throws InvocationTargetException, IllegalAccessException, NoSuchMethodException {

    PersonDO personDO = new PersonDO();

    personDO.setName("Hollis");

    personDO.setAge(26);

    personDO.setBirthday(new Date());

    personDO.setId(1);


    MapperTest mapperTest = new MapperTest();


    mapperTest.mappingBySpringBeanUtils(personDO, 100);

    mapperTest.mappingBySpringBeanUtils(personDO, 1000);

    mapperTest.mappingBySpringBeanUtils(personDO, 10000);

    mapperTest.mappingBySpringBeanUtils(personDO, 100000);

    mapperTest.mappingBySpringBeanUtils(personDO, 1000000);

    mapperTest.mappingByCglibBeanCopier(personDO, 100);

    mapperTest.mappingByCglibBeanCopier(personDO, 1000);

    mapperTest.mappingByCglibBeanCopier(personDO, 10000);

    mapperTest.mappingByCglibBeanCopier(personDO, 100000);

    mapperTest.mappingByCglibBeanCopier(personDO, 1000000);

    mapperTest.mappingByApachePropertyUtils(personDO, 100);

    mapperTest.mappingByApachePropertyUtils(personDO, 1000);

    mapperTest.mappingByApachePropertyUtils(personDO, 10000);

    mapperTest.mappingByApachePropertyUtils(personDO, 100000);

    mapperTest.mappingByApachePropertyUtils(personDO, 1000000);

    mapperTest.mappingByApacheBeanUtils(personDO, 100);

    mapperTest.mappingByApacheBeanUtils(personDO, 1000);

    mapperTest.mappingByApacheBeanUtils(personDO, 10000);

    mapperTest.mappingByApacheBeanUtils(personDO, 100000);

    mapperTest.mappingByApacheBeanUtils(personDO, 1000000);

}

画了一张折线图更方便大家进行对比

<!--Apache PropertyUtils、Apache BeanUtils-->

<dependency>

    <groupId>commons-beanutils</groupId>

    <artifactId>commons-beanutils</artifactId>

    <version>1.9.4</version>

</dependency>



<dependency>

    <groupId>commons-logging</groupId>

    <artifactId>commons-logging</artifactId>

    <version>1.1.2</version>

</dependency>



<!--Spring PropertyUtils-->

<dependency>

    <groupId>org.springframework</groupId>

    <artifactId>org.springframework.beans</artifactId>

    <version>3.1.1.RELEASE</version>

</dependency>



<!--cglib-->

<dependency>

    <groupId>cglib</groupId>

    <artifactId>cglib-nodep</artifactId>

    <version>2.2.2</version>

</dependency>



<!--dozer-->

<dependency>

    <groupId>net.sf.dozer</groupId>

    <artifactId>dozer</artifactId>

    <version>5.5.1</version>

</dependency>



<!--日志相关-->

<dependency>

    <groupId>org.slf4j</groupId>

    <artifactId>slf4j-api</artifactId>

    <version>1.7.7</version>

</dependency>



<dependency>

    <groupId>org.slf4j</groupId>

    <artifactId>jul-to-slf4j</artifactId>

    <version>1.7.7</version>

</dependency>



<dependency>

    <groupId>org.slf4j</groupId>

    <artifactId>jcl-over-slf4j</artifactId>

    <version>1.7.7</version>

</dependency>



<dependency>

    <groupId>org.slf4j</groupId>

    <artifactId>log4j-over-slf4j</artifactId>

    <version>1.7.7</version>

</dependency>



<dependency>

    <groupId>org.slf4j</groupId>

    <artifactId>slf4j-jdk14</artifactId>

    <version>1.7.7</version>

</dependency>