import java.util.ArrayList;
import java.util.List;
class GenericsList<T> {
private List<T> list;
public GenericsList(List<T> list) {
this.list = list;
}
public Class<?> getElementClass() {
//此处需要T的类 (return T.class;)
}
}
class User {
private String name; public String getName() {
return name;
} public void setName(String name) {
this.name = name;
}
}
public class GenericsListDemo {
public static void main(String args[]) {
List<User> list = new ArrayList<User>();
GenericsList<User> gList = new GenericsList<User>(list);
hibernate.loadAll(gList.getElementClass());
}
}
import java.util.List;
class GenericsList<T> {
private List<T> list;
public GenericsList(List<T> list) {
this.list = list;
}
public Class<?> getElementClass() {
//此处需要T的类 (return T.class;)
}
}
class User {
private String name; public String getName() {
return name;
} public void setName(String name) {
this.name = name;
}
}
public class GenericsListDemo {
public static void main(String args[]) {
List<User> list = new ArrayList<User>();
GenericsList<User> gList = new GenericsList<User>(list);
hibernate.loadAll(gList.getElementClass());
}
}
http://www.laozizhu.com/view.jsp?articleId=371
import java.lang.reflect.Type;
import java.util.ArrayList;
import java.util.List;class GenericsList<T> {
private List<T> list; public GenericsList(List<T> list) {
this.list = list;
getElementClass();
} public void getElementClass() {
// 此处需要T的类 (return T.class;)
Type type = list.getClass().getGenericSuperclass();
System.out.println(type);
ParameterizedType pType = (ParameterizedType)type;
System.out.println(pType);
Type[] aType = pType.getActualTypeArguments();
System.out.println(aType[0]);
System.out.println(aType[0].getClass());
}
public List<T> getList() {
return list;
}
}class Dog {
}class Cat {
}public class GenericsListDemo {
public static void main(String args[]) { List<Dog> list1 = new ArrayList<Dog>(); GenericsList<Dog> gList1 = new GenericsList<Dog>(list1);
gList1.getList();
// List<Cat> list2 = new ArrayList<Cat>();
// GenericsList<Cat> gList2 = new GenericsList<Cat>(list2);
// gList2.getList();
}
}