使用示例:
 

public static void main(String[] args) {//将ProjectA的值copy到ProjectBProjectB projectB = BeanCopierUtil.copy(new ProjectA("1", "项目名称"), ProjectB.class);List<ProjectA> list = new ArrayList<>();//将ProjectA数组copy到产生新的数组ProjectBList<ProjectB> list2 = BeanCopierUtil.copyLists(list, ProjectB.class);
}

工具类:

import cn.hutool.core.collection.CollectionUtil;
import cn.hutool.core.collection.ListUtil;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import java.util.concurrent.ConcurrentHashMap;
import java.util.function.BiConsumer;
import java.util.function.Supplier;
import org.springframework.cglib.beans.BeanCopier;
import org.springframework.cglib.core.Converter;public class BeanCopierUtil {private static final ConcurrentHashMap<String, BeanCopier> BEAN_COPIER_CACHE = new ConcurrentHashMap();public BeanCopierUtil() {}public static void copy(Object source, Object target, Converter converter) {String key = genKey(source.getClass(), target.getClass());BeanCopier beanCopier;if (BEAN_COPIER_CACHE.containsKey(key)) {beanCopier = (BeanCopier)BEAN_COPIER_CACHE.get(key);} else {beanCopier = BeanCopier.create(source.getClass(), target.getClass(), false);BEAN_COPIER_CACHE.put(key, beanCopier);}beanCopier.copy(source, target, converter);}public static void copy(Object source, Object target) {copy(source, (Object)target, (Converter)null);}public static <T> T copy(Object source, Class<T> target, Converter converter) {if (source != null && target != null) {Object obj;try {obj = target.newInstance();} catch (Exception var5) {throw new RuntimeException(var5);}copy(source, obj, converter);return (T) obj;} else {return null;}}public static <T> T copy(Object source, Class<T> target) {return (T) copy(source, (Class)target, (Converter)null);}public static <S, T> T copy(S source, Supplier<T> target, BiConsumer<S, T> callback) {if (source != null && target != null) {T obj = target.get();copy(source, (Object)obj, (Converter)null);if (callback != null) {callback.accept(source, obj);}return obj;} else {return null;}}public static <T, S> List<T> copyLists(List<S> sourceList, Class<T> targetClass) {return copyLists(sourceList, (Class)targetClass, (Converter)null);}public static <T, S> List<T> copyLists(List<S> sourceList, Class<T> targetClass, Converter converter) {if (CollectionUtil.isEmpty(sourceList)) {return ListUtil.empty();} else {List<T> target = new ArrayList(sourceList.size());Iterator var4 = sourceList.iterator();while(var4.hasNext()) {S source = (S) var4.next();T newInstance = copy(source, targetClass, converter);target.add(newInstance);}return target;}}public static <S, T> List<T> copyLists(List<S> sources, Supplier<T> targetSupplier, BiConsumer<S, T> callback) {if (CollectionUtil.isEmpty(sources)) {return ListUtil.empty();} else {List<T> target = new ArrayList(sources.size());Iterator var4 = sources.iterator();while(var4.hasNext()) {S source = (S) var4.next();T newInstance = copy(source, targetSupplier, callback);target.add(newInstance);}return target;}}private static String genKey(Class<?> srcClazz, Class<?> tgtClazz) {return srcClazz.getName() + tgtClazz.getName();}
}