public class BeanUtil {
private static final Logger logger = LoggerFactory.getLogger(BeanUtil.class);
/**
* 功能描述:浅拷贝 - 转换Bean对象
*
* @param sourceObject
* @param clazz
* @return
* @author Elivense White
*/
public static <T> T convertToBean(Object sourceObject, Class<T> clazz) {
T result = null;
if (sourceObject != null) {
try {
result = clazz.newInstance();
} catch (Exception e) {
logger.error("convert error", e);
e.printStackTrace();
}
BeanUtils.copyProperties(sourceObject, result);
}
return result;
}
/**
* 功能描述:浅拷贝 - 转换List<bean> 对象
*
* @param sourceList
* @param clazz
* @return
* @author Elivense White
*/
public static <T> List<T> convertToBeanList(List<?> sourceList, Class<T> clazz) {
List<T> resultList = null;
try {
if (sourceList != null && sourceList.size() > 0) {
resultList = new ArrayList<T>();
Iterator<?> iterator = sourceList.iterator();
while (iterator.hasNext()) {
T t = clazz.newInstance();
Object sourceObject = iterator.next();
BeanUtils.copyProperties(sourceObject, t);
resultList.add(t);
}
}
} catch (Exception e) {
logger.error("convert error", e);
e.printStackTrace();
}
return resultList;
}
/**
* 将对象装换为map
*
* @param bean
* @return
*/
public static <T> Map<String, Object> beanToMap(T bean) {
Map<String, Object> map = Maps.newHashMap();
if (bean != null) {
BeanMap beanMap = BeanMap.create(bean);
for (Object key : beanMap.keySet()) {
map.put(key + "", beanMap.get(key));
}
}
return map;
}
/**
* 将map装换为javabean对象
*
* @param map
* @param bean
* @return
*/
public static <T> T mapToBean(Map<String, Object> map, T bean) {
BeanMap beanMap = BeanMap.create(bean);
beanMap.putAll(map);
return bean;
}
/**
* 将List<T>转换为List<Map<String, Object>>
*
* @param objList
* @return
* @throws JsonGenerationException
* @throws JsonMappingException
* @throws IOException
*/
public static <T> List<Map<String, Object>> objectsToMaps(List<T> objList) {
List<Map<String, Object>> list = Lists.newArrayList();
if (objList != null && objList.size() > 0) {
Map<String, Object> map = null;
T bean = null;
for (int i = 0, size = objList.size(); i < size; i++) {
bean = objList.get(i);
map = beanToMap(bean);
list.add(map);
}
}
return list;
}
/**
* 将List<Map<String,Object>>转换为List<T>
*
* @param maps
* @param clazz
* @return
* @throws InstantiationException
* @throws IllegalAccessException
*/
public static <T> List<T> mapsToObjects(List<Map<String, Object>> maps, Class<T> clazz)
throws InstantiationException, IllegalAccessException {
List<T> list = Lists.newArrayList();
if (maps != null && maps.size() > 0) {
Map<String, Object> map = null;
T bean = null;
for (int i = 0, size = maps.size(); i < size; i++) {
map = maps.get(i);
bean = clazz.newInstance();
mapToBean(map, bean);
list.add(bean);
}
}
return list;
}
}