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servlet Before understanding the process of dispatcher servlet, we should first understand the technology of servlet. In a narrow sense, servlet is just an interface. In a broad sense, it is a specification. In traditional Java Web projects, the doGet and doPost methods are rewritten by inheriting HttpServlet (realizing the service interface ...

Well, I know it's midnight... But I still think it's worth spending half an hour to share this latest idea and get straight to the point Let's simulate a scenario. You need to grab a page, and then there are many URLs on this page, and after entering these sub URLs, there is data to grab. Simply put, let's look at the three layers, and our cod ...

(1) The significance of interface automation test and the idea of separation of front and back ends Advantages and disadvantages of interface automation test: advantage: 1. Test reusability. 2. The maintenance cost is lower than that of UI automation. Why? UI Higher automated maintenance costs? Because the front page changes too fas ...

preface Why did you play Toast to prompt that the download was successful without the network (on flight mode)? Subconsciously, the Toast prompt must be playing early. Just click the button and play Toast before downloading. Hurry to get your mobile phone to operate and verify it. There's really no network. After playing the download complet ...

Introduction​ Hello! I'm kimiko. Do you miss me again today? Didn't you have a Python beauty camera before? I wonder if you remember? The topic of this issue still revolves around the beauty aspect of the previous issue. Or the original formula, or the original taste. Occasionally, girls or boys have had such an experience. When they look i ...

let apples = ['🍎', '🍏']; let fruits = ['🥭', '🍌', '🍒']; // Add all items from apples onto fruits at start Array.prototype.unshift.apply(fruits, apples) console.log( fruits ); //=> ["🍎", "🍏", "🥭", "🍌", "🍒"] Now the red and green apples will merge at the beginning, not at the end. Abbreviation: We can still shorten ...

Create react app is a global command line tool used to create a new project. React scripts are the development dependencies required for a generated project. In order to use React in the browser, two class libraries need to be referenced: React and React dom. The React library is used to create views, and the React DOM library is used to rende ...

// ant-design-vue/lib/button/style/index.js 'use strict'; require('../../style/index.less'); require('./index.less'); // ant-design-vue/lib/button/style/css.js 'use strict'; require('../../style/index.css'); require('./index.css'); // ant-design-vue/es/button/style/index.js import '../../style/index.less'; import './index.less'; ...

1. Train of thought??? How to realize the function of multi language switching? Firstly, the basic operation flow is: the user selects the language, the multilingual input method adapts according to the language, and the interface adapts according to the selected language. So the question is, how does the input method apk choose the correspon ...

At this time, there are only two elements in the array, so we only need to constantly compare the sizes of child elements in the two elements to obtain a complete ordered array, as shown in the following figure: This is a complete merging and sorting process. Next, let's implement it with code function mergeSort(arr) { // Combin ...