废弃
注意：类需要public访问权限，否则会报错
1、根据对象获得所有字段的值
public static void method(Object obj) {
try {
Class clazz = obj.getClass();
Field[] fields = clazz.getDeclaredFields();// 获得属性
for (Field field : fields) {
PropertyDescriptor pd = new PropertyDescriptor(field.getName(), clazz);
Method getMethod = pd.getReadMethod();// 获得get方法
Object o = getMethod.invoke(obj);// 执行get方法返回一个Object
System.out.println(o);
}
} catch (SecurityException e) {
e.printStackTrace();
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (IntrospectionException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
}
}2、通过对象和具体的字段名字获得字段的值
public static void method(Object obj, String filed) {
try {
Class clazz = obj.getClass();
PropertyDescriptor pd = new PropertyDescriptor(filed, clazz);
Method getMethod = pd.getReadMethod();// 获得get方法
if (pd != null) {
Object o = getMethod.invoke(obj);// 执行get方法返回一个Object
System.out.println(o);
}
} catch (SecurityException e) {
e.printStackTrace();
} catch (IllegalArgumentException e) {
e.printStackTrace();
} catch (IntrospectionException e) {
e.printStackTrace();
} catch (IllegalAccessException e) {
e.printStackTrace();
} catch (InvocationTargetException e) {
e.printStackTrace();
}
}