BeanWrapper解析

/**
 * 对象复制【浅克隆】
 */
public class NewCopyUtils {
    private static final String CLASS="class";
    /**
     * 复制对象【只能复制基本数据类型，浅克隆】
     * @param source 源对象
     * @param target 目标对象
     * @param ingoreAgrs 忽略的属性
     * @throws Exception
     */
    public static void copyProperties(Object source,Object target,String... ingoreAgrs) throws Exception {
        if (source.getClass().isInterface()||target.getClass().isInterface()){
            throw new Exception("source和target不能为接口");
        }
        BeanWrapper sourceWrap = createBeanWrap(source);
        BeanWrapper targetWrap = createBeanWrap(target);
        PropertyDescriptor[] targetPds = targetWrap.getPropertyDescriptors();
        PropertyDescriptor[] sourcePds = sourceWrap.getPropertyDescriptors();
        //根据名称分组，减少一层循环
        Map<String, List<PropertyDescriptor>> map = Arrays.asList(sourcePds).parallelStream().filter(o -> !StringUtils.equals(CLASS, o.getName())).collect(Collectors.groupingBy(o -> o.getName()));
        for (int i = 0; i < targetPds.length; i++) {
            PropertyDescriptor tpd=targetPds[i];
            //去掉class属性和不要的复制的属性
            if (!StringUtils.equals(CLASS,tpd.getName())&& !Arrays.asList(ingoreAgrs).contains(tpd.getName())){
                List<PropertyDescriptor> list = map.getOrDefault(tpd.getName(), null);
                if (Objects.nonNull(list)){
                    Method writeMethod = tpd.getWriteMethod();
                    Method readMethod = list.get(0).getReadMethod();
                    if (Objects.isNull(writeMethod)&&Objects.isNull(readMethod)){
                        throw  new Exception("属性必须有get和set方法");
                    }
                    Object o = readMethod.invoke(source);
                    writeMethod.invoke(target,o);
                }
            }
        }
    }
    /**
     * 构造BeanWrapImpl
     * @param source 对象
     * @return BeanWrapper
     */
    private static BeanWrapper createBeanWrap(Object source){
        return new BeanWrapperImpl(source);
    }
}