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package com.starry.test; import java.lang.reflect.InvocationTargetException; import java.util.ArrayList; import java.util.List; import java.util.Map; import org.apache.commons.collections.CollectionUtils; import org.apache.commons.lang.ArrayUtils; import org.springframework.beans.BeanUtils; import com.alibaba.fastjson.JSON; import com.mysql.fabric.xmlrpc.base.Array; /**  * bean转化类  * @author Starry  *  */ public class BeanConvertor { /** * 方法说明：将bean转化为另一种bean实体 *  * @param object * @param entityClass * @return */ public static <T> T convertBean(Object object, Class<T> entityClass) { if(null == object) { return null; } return JSON.parseObject(JSON.toJSONString(object), entityClass); } /** * 方法说明：对象转换 *  * @param source 原对象 * @param target 目标对象 * @param ignoreProperties 排除要copy的属性 * @return */ public static <T> T copy(Object source, Class<T> target, String...ignoreProperties){ T targetInstance = null; try { targetInstance = target.newInstance(); } catch (Exception e) { e.printStackTrace(); } if(ArrayUtils.isEmpty(ignoreProperties)) { BeanUtils.copyProperties(source, targetInstance); }else { BeanUtils.copyProperties(source, targetInstance, ignoreProperties); } return targetInstance; } /** * 方法说明：对象转换(List) *  * @param list 原对象 * @param target 目标对象 * @param ignoreProperties 排除要copy的属性 * @return */ public static <T, E> List<T> copyList(List<E> list, Class<T> target, String...ignoreProperties){ List<T> targetList = new ArrayList<>(); if(CollectionUtils.isEmpty(list)) { return targetList; } for(E e : list) { targetList.add(copy(e, target, ignoreProperties)); } return targetList; } /** * 方法说明：map转化为对象 *  * @param map * @param t * @return * @throws InstantiationException * @throws IllegalAccessException * @throws InvocationTargetException */ public static <T> T mapToObject(Map<String, Object> map, Class<T> t) throws InstantiationException, IllegalAccessException, InvocationTargetException { T instance = t.newInstance(); org.apache.commons.beanutils.BeanUtils.populate(instance, map); return instance; } /** * 方法说明：对象转化为Map *  * @param object * @return */ public static Map<?, ?> objectToMap(Object object){ return convertBean(object, Map.class); } }

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