看名字猜测应该是根据构造对象和范型参数来生成一个对象，不知道是不是这样子。
感觉跟ConstructorBorning应该差不多，但是ConstructorCastingBorning怎么用，范型相关参数如何传入，没看明白，
下面是ConstructorBorning的测试方法：
Constructor constructor = School.class.getConstructor(String.class,String.class);
ConstructorBorning a = new ConstructorBorning(constructor);
Object b = a.born("北京大学","北京市海淀区");
System.out.println(Json.toJson(b));
完整代码贴这里，有什么问题的话，兽兽请指出
public class ConstructorCastingBorningTest extends TestCase {
public void testBorn() throws Exception {
Constructor constructor = School.class.getConstructor(String.class,String.class);
ConstructorBorning borning = new ConstructorBorning(constructor);
Object school = borning.born("北京大学","北京市海淀区");
System.out.println(Json.toJson(school));
Constructor constructor2 = User.class.getConstructor(School.class);
ConstructorCastingBorning borning2 = new ConstructorCastingBorning(constructor2);
User user = (User) borning2.born(school);
user.setUsername("zhangsan");
System.out.println(Json.toJson(user));
}
}
class User<T extends School> {
private String username;
private T school;
public User(T school){
this.school = school;
}
public String getUsername() {
return username;
}
public void setUsername(String username) {
this.username = username;
}
public T getSchool() {
return school;
}
public void setSchool(T school) {
this.school = school;
}
}
class School {
private String name;
private String addr;
public School(String name,String addr){
this.name = name;
this.addr = addr;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
public String getAddr() {
return addr;
}
public void setAddr(String addr) {
this.addr = addr;
}
}