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1. Install VS 2019, SQL Server 2019 (Optional) 2. Open VS and select new ASP.NET Core Web Application project 3. Fill in project name, solution name, modify storage path, etc. 4. Select the version of. NET Core. By default, we select 3.1 and API.   This is the default directory structure after ...

Throw question Some time ago, a big guy said that PHP redis's pconnect can't realize long links. After the request ends, the connection is released. I have doubts in my mind. If so, why does PHP redis have connect and pconnect? Search document The connection will not be closed on end of request un ...

https://github.com/php-fig/fig-standards/blob/master/accepted/PSR-3-logger-interface.md composer require psr/log Log interface specification In this paper, the general interface specification of log class library is established. The main purpose of this specification is to make the log class library record log information by receiving a Ps ...

Generation project Sir, a package.json cnpm init Node? Modules folder, which contains the modules provided by node.js cnpm install Install Express scaffolding cnpm i express-generator Install express **cnpm install express --save** Create an Express application named myapp, use ejs template engine ...

Is there a query (command) that truncates all tables in the database in one operation? I wonder if this can be done through a query. #1 building I found that even after NOCHECK CONSTRAINT ALL, TRUNCATE TABLE.. still has a foreign key constraint problem, so I used the DELETE FROM statement instead. This does mean that the identity seed wi ...

0. Preface CRSF is based on session, which sounds like XSS cross site scripting attack, but in fact, the attack mode is totally different. When I wrote XSS, I mentioned that many websites would use cookie s to save the login information of users. For example, when I finished using CSDN last night, I c ...

crud of MyBatis single table Create maven project and add dependency, junit, mysql, and mybatis(3.4.6) Create the configuration file of mybatis under Resources <?xml version="1.0" encoding="UTF-8" ?> <!DOCTYPE configuration PUBLIC "-//mybatis.org//DTD Config 3.0//EN" "http ...

  Request line: Request Method, Request Address and Parameters public class LineServlet extends HttpServlet { protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { //1. How to get the request String method = request.getMethod( ...

    1. Introduction Previous articles have provided a preliminary introduction to the use of quartz quartz-2.2.3 Source Code Analysis and Integration of Quartz and Spring In this article, the Quartz distributed cluster implementation is analyzed from the source code perspective. 2. Quartz Cluster ...

First of all, think about how to display the data in a List collection in the form of a drop-down box (select tag) without using the DropdownList control? Use drop-down box (pure select) to display classification data Steps: Processing backend: ① Define a public userID variable in the back-end code to save the userID obtained in the url public ...