java将父类所有的属性COPY到子类中
public class FatherToChildUtils { /* * 将父类所有的属性COPY到子类中。 * 类定义中child一定要extends father; * 而且child和father一定为严格javabean写法,属性为deleteDate,方法为getDeleteDate */ public static void fatherToChild (Object father,Object child){ if(!(child.getClass().getSuperclass()==father.getClass())){ System.err.println("child不是father的子类"); } Class fatherClass= father.getClass(); Field ff[]= fatherClass.getDeclaredFields(); for(int i=0;i<ff.length;i++){ Field f=ff[i];//取出每一个属性,如deleteDate Class type=f.getType(); try { Method m = fatherClass.getMethod("get"+upperHeadChar(f.getName()));//方法getDeleteDate Object obj=m.invoke(father);//取出属性值 f.set(child,obj); } catch (SecurityException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IllegalArgumentException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (NoSuchMethodException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (IllegalAccessException e) { // TODO Auto-generated catch block e.printStackTrace(); } catch (InvocationTargetException e) { // TODO Auto-generated catch block e.printStackTrace(); } } } /** * 首字母大写,in:deleteDate,out:DeleteDate */ private static String upperHeadChar(String in){ String head=in.substring(0,1); String out=head.toUpperCase()+in.substring(1,in.length()); return out; } }