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/**
* @method test
* @author BinCain
* @return void
* @date 2017/11/5 0005 2:19
* @Description: 将srcObj对象字段的值拷贝到destObj字段(前提:两个对象中的字段名相同时)
* 其实就是通过反射将值先存在map中,在遍历set进目标对象
*/
public static void copyFieldToBean(Object srcObj,Object destObj){
Map<String, Object> srcMap = new HashMap<String, Object>();
Field[] srcFields = srcObj.getClass().getDeclaredFields();
for (Field srcField : srcFields) {
try {
srcField.setAccessible(true);
srcMap.put(srcField.getName(), srcField.get(srcObj)); //获取属性值
} catch (Exception e) {
e.printStackTrace();
}
}
Field[] destFields = destObj.getClass().getDeclaredFields();
for (Field destField : destFields) {
destField.setAccessible(true);
if (srcMap.get(destField.getName()) == null) {
continue;
}
try {
destField.set(destObj, srcMap.get(destField.getName())); //给属性赋值
} catch (Exception e) {
e.printStackTrace();
}
}
}
/**
* @author BinCain
* @version V1.0
* @Description: 第一个测试实体类:作为资源实体类
* @date 2017/11/5 0005 2:08
*/
public class FirstPerson {
private String name;
private int age;
//GETTER && SETTER
/**
* @author BinCain
* @version V1.0
* @Description: 第二个测试实体类:作为目标实体类
* @date 2017/11/5 0005 2:08
*/
public class SecondPerson {
private String name;
private int age;
//GETTER && SETTER
public static void main(String[] args) {
FirstPerson firstPerson = new FirstPerson();
SecondPerson secondPerson = new SecondPerson();
firstPerson.setAge(18);
firstPerson.setName("LiLi");
copyFieldToBean(firstPerson,secondPerson);
Field[] fds = secondPerson.getClass().getDeclaredFields();
for (Field fd : fds) {
try {
fd.setAccessible(true);
System.out.println(fd.getName() + "=" + fd.get(secondPerson));
} catch (Exception e) {
e.printStackTrace();
}
}
}
测试记结果如下:(符合预想)
name=LiLi
age=18
Process finished with exit code 0