when learning the reactor model today, I referred to the code written by others. reference blog address: https: blog.csdn.net u011693. the following are the questions to be asked: 1.reactorreactor_impl 2.reactor CPP rookie, also hope to be able t...
in order to decouple, I learned that servlet is required to be separated from Service (jsp servlet presentation layer; service business logic layer; Dao persistence layer), but I feel very uncomfortable when writing practical exercises for small project...
< H2 > background < H2 > in order to be compatible with a variety of businesses, I want to use some design patterns in the project for ease of management. for example, I need to create a user and return userid,. Each business is created in a differen...
with pictures this is a code to obtain order data. Function and method bindings are basically click events bound in html , as well as drop-down refresh functions. How to better organize the code structure for easy maintenance and module mode? I...
there are methods in the interface: after() before() doInit() when calling, I want to call the above three methods in this method by calling a method execute () . How should I design the class? there are two ways of thinking now: Add a method to...
Many people on use calculator examples to illustrate these two principles, but it seems that the difference is that OCP has an abstract class, while SRP does not inherit abstraction compared with SRP, OCP, the examples of 1.OCP are all independent of...
there is a class that has a lot of properties. Now I have a lot of other roles. Different roles use different fields. What design pattern do you use? ...
define association: Theme.belongsToMany(Product,{through:theme_product,foreignKey: theme_id }) Product.belongsToMany(Theme,{through:theme_product,foreignKey: product_id }) theme_product is the intermediate table error message: throw new ...
Car car = new Car(22000,"silver"); WeakReference<Car> weakCar = new WeakReference<Car>(car); car = null; System.gc(); when the above code is gc, weakCar.get () returns null, indicating that the Car object has been recycled, but th...
according to the suggestions on the Internet, the code has been simplified and a picture has been made transparent < image style= "height: 100% width: 100% src=: 0 " src= " http: devimg.webf10.com wech.; > < view > < image src= " http: devim...
when you encounter MP4 embedding video tag, the video will be played normally, but the video will change color code as follows: <video id="video" loop="loop" controls="controls" preload="auto" poster="up...
1 there is an exception in the process of learning python multi-inheritance. I really don t know what the problem is. Ask for a solution . class People(object): def __init__(self,name,sex): self.name=name self.sex=sex class Teacher(...