JAVA 反射构造函数带泛型参数的类
比如说：
public class User<T extends Person> {
private T rootType;
public User(T rootType){
this.rootType = rootType;
}
@Override
public String toString() {
return "User [rootType=" + rootType + "]";
}
}
public class Work extends Person {
@Override
public String toString() {
return "Work [getClass()=" + getClass() + ", hashCode()=" + hashCode()
+ ", toString()=" + super.toString() + "]";
}
}
public class Person {
@Override
public String toString() {
return "Person []";
}
}
我想要构造一个User(work), 如何构造？
public static <T extends Person> T getInstance() {
String className = "com.aaa.reflection.utils.User";
Class clazz;
try {
clazz = Class.forName(className);
Constructor<?>[] cons = clazz.getConstructors();
Constructor<?> con = cons[0];
Object initargs = Work.class;
T obj = (T) con.newInstance(initargs);
System.out.println(obj.toString());
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
return null;
}
