Spring5新功能@Nullable注解及函数式注册对象

public class User {
    public static void main(String[] args) {
        User user = new User();
    }
}

@Test
    public void testGeneric() {
        // 创建 GenericApplicationContext 对象
        GenericApplicationContext context = new GenericApplicationContext();
 
        // 调用 context 对象的方法进行注册，用 Lambda 表达式
        context.refresh();
        context.registerBean("user1", User.class, () -> new User());
 
        // 获取在 spring 中创建的对象
        User user = (User) context.getBean("user1");
        System.out.println(user);
    }

com.pingguo.spring5.test.User@76707e36

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