Reflection of a generic type

package cn.itcast.oa.base;import java.lang.reflect.parameterizedtype;import  javax.annotation.resource;import cn.itcast.oa.service.departmentservice;import  cn.itcast.oa.service.roleservice;import cn.itcast.oa.service.userservice;import  Com.opensymphony.xwork2.actionsupport;import com.opensymphony.xwork2.modeldriven;public abstract  class BaseAction<T> extends ActionSupport implements ModelDriven<T> Support for  {    // =============== modeldriven  ==================     protected t model;    public baseaction ()  {         try {             //  get the True type of model by reflection              parameterizedtype pt =  (Parameterizedtype)  this.getclass (). GETGEnericsuperclass ();            class<t>  clazz =  (class<t>)  pt.getactualtypearguments () [0];             //  Create an instance of model by reflection              model = clazz.newinstance ();         } catch  (exception e)  {             throw new runtimeexception (e);        }     }    public t getmodel ()  {         return model;    }    // ===============  service instance declarations  ==================     @Resource     protected  roleservice roleservice;     @Resource     protected DepartmentService  departmentservice;     @Resource     protected UserService  UserService;}

Abstract classes cannot be instantiated, so this within an abstract class refers to the instantiated object of its derived class in the actual invocation

Reference article:

http://blog.csdn.net/liang5630/article/details/40185591

This article is from the "bit accumulation" blog, please be sure to keep this source http://tianxingzhe.blog.51cto.com/3390077/1743536

Reflection of a generic type