Java反射与动态代理

1.反射对象

1.1 通过反射构建无参数对象

public class ReflectServiceImpl {
    public void sayHello(String name){
        System.err.println("Hello "+name);
    }


    public ReflectServiceImpl getInstance(){
        ReflectServiceImpl object = null;

        try {
            //给类加载器注册一个类ReflectServiceImpl的全限定类名，然后通过newInstance办法初始化一个类对象
            object = (ReflectServiceImpl)Class.forName("com.lean.ssm.chapter2.ReflectServiceImpl").newInstance();
        } catch (InstantiationException e) {
            e.printStackTrace();
        } catch (IllegalAccessException e) {
            e.printStackTrace();
        } catch (ClassNotFoundException e) {
            e.printStackTrace();
        }
        return object;
    }
}
public class ReflectService