Setting up Javabean__java through introspection mechanism

First, the steps:

1 using the PropertyDescriptor class to get the property descriptor object

PD references the name attribute of Student
propertydescriptor pd = new PropertyDescriptor ("name", Student.class);

2) through the Getwritemethod () method +invoke () method to set

Equivalent to getting SetName () method
m = Pd.getwritemethod ();        
M.invoke (Stu, "Berrry");

3) through the Getreadmethod () method +invoke () method to obtain

Equivalent to getting GetName ()
m = Pd.getreadmethod ();
String returnvalue = (string) m.invoke (s, null);

Second, through the beaninfo to traverse all the attributes and set

1 The BeanInfo object is obtained by the static method Getbeaninfo () method of Introspector class

BeanInfo represents all the property collection objects of the Student object
BeanInfo bi = introspector.getbeaninfo (student.class);

2 Get all property collections

Gets the collection of all properties of the student object
propertydescriptor[] pds = Bi.getpropertydescriptors ();

3) As above: through the Getwritemethod () and Getreadmethod () + Invoke () method to do the appropriate operation.