实体类1
class Book {private String name;private Integer age;public Book() {}public Book(String name, Integer age) {this.name = name;this.age = age;}@Overridepublic String toString() {return "Book{" +"name='" + name + '\'' +", age=" + age +'}';}public String getName() {return name;}public void setName(String name) {this.name = name;}public Integer getAge() {return age;}}
实体类2
class Animal {private String name;private Integer age;private String color;public Animal() {}public Animal(String name, Integer age, String color) {this.name = name;this.age = age;this.color = color;}public String getName() {return name;}public void setName(String name) {this.name = name;}public Integer getAge() {return age;}public void setAge(Integer age) {this.age = age;}public String getColor() {return color;}public void setColor(String color) {this.color = color;}@Overridepublic String toString() {return "Animal{" +"name='" + name + '\'' +", age=" + age +", color='" + color + '\'' +'}';}}
转换对象之间属性的方法
/*** 判断某个类是否存在某个属性* @param t* @param fieldName* @return*/public static Boolean hasField(Class t,String fieldName){Field[] declaredFields = t.getDeclaredFields();for (Field declaredField : declaredFields) {if (declaredField.getName().equals(fieldName)){return true;}}return false;}/*** 对象转换* @param oldList* @param eClass* @param <E>* @param <T>* @return*/public static <E, T> List<T> convertListToList(List<E> oldList, Class<T> eClass) {List<T> newList = new ArrayList<>();try {if (CollectionUtils.isNotEmpty(oldList)) {Field[] fields = oldList.get(0).getClass().getDeclaredFields();for (E source : oldList) {T target = eClass.newInstance();for (Field field : fields) {field.setAccessible(true);if (hasField(eClass,field.getName())) {Field f = eClass.getDeclaredField(field.getName());f.setAccessible(true);f.set(target,field.get(source));}}newList.add(target);}}} catch (Exception e) {e.printStackTrace();}return newList;}/*** 测试的方法** @param args*/public static void main(String[] args) {List<Book> bookList = new ArrayList<>();bookList.add(new Book("zhangsan", 23));List<Animal> animals = convertListToList(bookList, Animal.class);System.out.println(animals);}
测试成功
