- public static void main(String[] args) throws IntrospectionException, IllegalAccessException, IllegalArgumentException, InvocationTargetException
- {
- Person p1 = new Person();
-
- String property1 = "name";
-
- PropertyDescriptor pd = getProperty(p1, property1);
-
- Object value = "zhangsan";
- setProperty(p1, property1, value);
- }
- private static void setProperty(Person p1, String property1, Object value)
- throws IntrospectionException, IllegalAccessException,
- InvocationTargetException
- {
- PropertyDescriptor pd2 = new PropertyDescriptor(property1,p1.getClass());
- Method setN = pd2.getWriteMethod();
- setN.invoke(p1, value);
- }
- <font color="red">//这里,我想知道为什么按照张老师的说法去做的,而我重构出来的方法返回值是PropertyDescriptor呢?</font>
- private static PropertyDescriptor getProperty(Object p1, String property1)
- throws IntrospectionException, IllegalAccessException,
- InvocationTargetException
- {
- PropertyDescriptor pd = new PropertyDescriptor(property1,p1.getClass());
- Method getN = pd.getReadMethod();
- Object retVal = getN.invoke(p1);
- return pd;
- }
复制代码 谁知道这个是怎么回事 ,麻烦帮忙解决下啊?
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