Programmer Think

Interceptors in Spring In web development, interceptor is a commonly used function. It can help us verify whether to login, authorization, data validation, pre-set data and the efficiency of statistical methods, etc. Today I'll talk about the interceptor in spring in detail. There are two main types of interceptors in spring: Handler Intercepto ...

In RxJS, the full flow of a data stream needs to contain at least Observable and Observer. Observable is the observer, Observer is the observer, Observer subscribes to Observable, Observable pushes data to Observer to complete the whole process. It can be said that a complete RxJS data stream is an interactive game between Observable and Obser ...

1. Deformation transform: element objects can be rotate d, scale d, moved translate, skew, matrix deformations.Example: transform: rotate(90deg) scale(1.5,0.8) translate(100px,50px) skew(45deg,45deg); /*Matrix Deformation*/ matrix(<number>,<number>,<number>,<number>,<number>,<number>); /*perspective*/ persp ...

MVC in Asp.net is mainly oriented to Content-Type of "text" type to handle HTTP requests. In addition to file transfer, even json and xml are text types. Therefore, MVC naturally handles input and output of text type very well. Sometimes, however, this does not satisfy us. What happens when we want to transfer binary byte [] ...

These simple-looking graphics are all implemented using pure CSS plus an HTML tag. Many of the implementations I've introduced before, or you know, but some believe you haven't seen them before. 1.Square Real-time rendering works as follows: Related CSS code: #square { width: 100px; height: 100px; background: red; } 2. Rectangles Effect: ...

React-Native brings new horizons to the front-end. You can use the web development language javascript to implement Native development (ios/android). Now the front-end can do more. The Use of Reaction-Navigation Reaction-native uses navigators to implement native routing functions, but the official website is too brief, the only entry docu ...

I. background Shortly after joining the new company, I met a colleague who was leaving and handed over the project to me. Colleagues leave their jobs in a hurry, so the handover is not very good, which is also an objective reason for the more problems behind. As shown in the title, the front end is developed by vue.js+node.js, the back end is d ...

CSS is powerful in handling typesetting, not impossible but unexpected.Next, we'll work on a column chart. Start with a specific framework.We use an unordered list as a whole, and what's inside we simply choose inline null span, strong, em to fill. <ul class="chart"> <li><em>Call of Duty</em><span>: < ...

Dubbox 1: IntroductionDubbox is a distributed service framework. Its predecessor is Dubbo, an open source project of Alibaba, which is used in domestic e-commerce and Internet projects. In the later period, Alibaba stopped the maintenance of the project. Dangdang Networks optimized and maintained on the basis of Dubbo. In order to distinguish ...