Gets the generic type defined on the interface or class

The type of the parent class or interface is obtained by Getgenericsuperclass () or getgenericinterfaces () on class. Then through Parameterizedtype.getactualtypearguments ()

You can get a generic type defined on a class or interface, as in the following code:

 Packagecom.jiaoyiping.event;/** Created with Intellij idea * USER: Coke A flat * Mail: [email protected] * DATE:2016/12/4 * time:9:28 * to change t His template use File | Settings | Editor | File and Code Templates*/ImportJava.lang.reflect.ParameterizedType;ImportJava.lang.reflect.Type; Public classGenerictypetest {Static classTest1extendsT<person, animal> {    }    Static classTest2ImplementsI<person, Animal>, i2<fruit> {    }     Public Static voidMain (string[] args) {//gets the generic type on the class definitionTest1 test1 =NewTest1 (); Type Types=Test1.getclass (). Getgenericsuperclass (); Type[] GenericType=((Parameterizedtype) types). Getactualtypearguments ();  for(Type t:generictype) {System.out.println (T.gettypename ()); } System.out.println ("==============================================="); //gets the generic type on the interface definitionTest2 test2 =NewTest2 (); //A class may implement multiple interfaces, and the generic types defined on each interface are preferable totype[] Interfacestypes =Test2.getclass (). Getgenericinterfaces ();  for(Type t:interfacestypes) {type[] genericType2=( (Parameterizedtype) t). Getactualtypearguments ();  for(Type t2:generictype2) {System.out.println (T2.gettypename ()); }        }    }}classT&LT;T1, t2> {     Public voidPrintt (T1 t1, T2 T2) {System.out.println (T1.getclass ());    System.out.println (T2.getclass ()); }}InterfaceI&LT;T1, t2> {}InterfaceI2<k> {}classPerson {@Override PublicString toString () {return"Person Type"; }}classAnimal {@Override PublicString toString () {return"Animal Type"; }}classFruit {@Override PublicString toString () {return"Fruit Type"; }}

Gets the generic type defined on the interface or class