Tag:Edition

  • Talk about git Series 1: git introduction and installation

    Time:2021-3-7

    1、 Version control 1. What is version control system A standard version control system (VCS) usually needs the following functions:Ability to create a repository for storing codeFacilitate code distribution to team members during collaborative developmentRecord the content, time and reason of each code modificationAble to create branches, which can be developed according to different scenariosAbility […]

  • Quickly building alink project with maven

    Time:2021-3-7

    The newly released version of alink 1.1.0 supports publishing to Maven central. Java developers can quickly build alink machine learning projects through Maven. This article will demonstrate a simple construction scheme, which is convenient for enthusiasts to get started quickly. Let’s talk about the related environment, windows system. The Jave editor used is interlij idea […]

  • SQL Server puzzle: can variables be used in query condition in

    Time:2021-3-6

    In SQL server query conditions, can variables be used in in? If you can, are there any places or restrictions that need attention? Before answering this question, let’s take a look at this example   IF EXISTS (SELECT 1 FROM sys.objects WHERE name=’TEST’ AND type=’U’) BEGIN     DROP TABLE TEST; END GO CREATE TABLE TEST ( ID INT, NAME […]

  • Build from scratch Node.js Enterprise web server (zero): static services

    Time:2021-3-6

    preface In the past five years, I have worked in the development of newbie network and ant financial services. On the one hand, I have supported the business team to develop various business systems; on the other hand, I have done basic technology construction in my own technical team. In the meantime Node.js Many web […]

  • Mysql database import SQL error (unknown collation: ‘utf8mb4_ 0900_ ai_ ci’ )

    Time:2021-3-6

    Error reason: high version database (8.0) transfers SQL file and imports low version database (5.7) terms of settlement: Scheme 1: upgrade Mysql to a higher version Scheme 2: the SQL file to be imported, the utf8mb4_0900_ai_ciReplace all withutf8_general_ci utf8mb4Replace withutf8 Re execute SQL file

  • Analysis: today’s Taobao S1 level fault

    Time:2021-3-6

    Write at the beginning: This picture has appeared in many headlines today. Xiaobian himself is also a must. The IOS version will still appear 100% now,At present, the prompt has been modified at 7.52 on March 25 (new version of XXXXX found) Taobao on IOS must be mostly written through Object-C, and then distributed and […]

  • Common problems in using IntelliJ idea and webstorm on Mac OS X

    Time:2021-3-6

    1. Chinese punctuation cannot be displayed At present, Oracle official JDK 8u51 can use Chinese punctuation normally, and other jdk8 versions can’t use Chinese punctuation normally, even to 8u74 version. 2. Switch JDK started by ide Press the shortcut keyCMD+Shift+A, inputjdk, selectSwitch IDE boot JDK…That is to switch between JDK installed in the system and […]

  • Get the submitted content of GIT

    Time:2021-3-6

    QT Jun recently work need to release a software, but encountered some problems. Software is requiredWrite Version DescriptionHowever, the content of version modification is in every commit of GIT. Manual copy is obviously too time-consuming and not worth it.    so I checked the manual and wrote this immediatelyExtract commit content commandSimple and convenient to […]

  • Laravel7 uses auth for user authentication

    Time:2021-3-6

    Original address: https://www.wjcms.net/archive… The laravel 7 version has removed auth. We all know that the previous version was used directlyphp artisan make:auth Can be used, but this version can not, then how to do it? Today I would like to talk about the specific steps. Laravel / UI package of laravel 7 provides a quick […]

  • Combine table and calendar of elementui to make a price calendar

    Time:2021-3-5

    In the project, we need to make a price calendar to display and modify the date and price. Let’s take a look at the final effect first, and then use the table and calendar of elementui to realize it. Let’s take a look at the main code (the code only retains the main code and […]

  • Different versions of web.xml Header information

    Time:2021-3-5

    2.3 <?xml version=”1.0″ encoding=”ISO-8859-1″?> <!DOCTYPE web-app PUBLIC “-//Sun Microsystems, Inc.//DTD Web Application 2.3//EN” “http://java.sun.com/dtd/web-app_2_3.dtd”> <web-app> </web-app> 2.4 <?xml version=”1.0″ encoding=”UTF-8″?> <web-app id=”WebApp_9″ version=”2.4″ xmlns=”http://java.sun.com/xml/ns/j2ee” xmlns:xsi=”http://www.w3.org/2001/XMLSchema-instance” xsi:schemaLocation=”http://java.sun.com/xml/ns/j2ee http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd”> </web-app> 2.5 <?xml version=”1.0″ encoding=”UTF-8″?> <web-app xmlns=”http://java.sun.com/xml/ns/javaee” xmlns:xsi=”http://www.w3.org/2001/XMLSchema-instance” xsi:schemaLocation=”http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_2_5.xsd” version=”2.5″> </web-app> JDK version above 1.5 3.0 <?xml version=”1.0″ encoding=”UTF-8″?> <web-app version=”3.0″ xmlns=”http://java.sun.com/xml/ns/javaee” xmlns:xsi=”http://www.w3.org/2001/XMLSchema-instance” xsi:schemaLocation=”http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd”> </web-app> JDK […]

  • Workflow of logagent

    Time:2021-3-5

    Project architecture design The workflow of logagent is as follows: Read log–tailfThird party Library func main() { fileName := “./my.log” config := tail.Config{ Reopen: true, // reopen Follow: true, // follow Location: & tail.SeekInfo {offset: 0, when: 2}, // where to start reading the file Mustexist: false, // no error will be reported if the […]