Tag：Account number
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Time：2021-9-21
WeChat official account: [front end pot]A little technology, a little thinking.For questions or suggestions, please leave a message for the official account. Related commands To view the native mongodb version:mongo -version To view mongodb running on this machine:ps aux | grep mongodb To connect to the native database:mongo localhost:27017 Connect to local database with account […]
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Time：2021-9-20
In daily development, we often need to click a button to provide interaction, pop up a dialog box and enter some information. The code of this article is added in additionBackground black maskAnd canArbitrary drag and drop dialog box。 JS knowledge points used: onclick, onmousedown, onmouseup, onMouseMove, mouse position Rendering GIF: Drag and drop freely: […]
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Time：2021-9-16
Win10 environment setup Recently, the special computer room of the school has been set up, so you need to build the relevant environment on the new computer. Here are some thoughts and processes recorded for reference when building the environment in the future. Do I need Ubuntu? When I first came here, I spent a […]
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Time：2021-9-9
preface Start of testMySQL 8As a database, as of May 13, 2021, airflow 2.0.2This problemNot resolved, so switch to usePostgreSQL 12 airflowIt is DAG (directed acyclic graph) task management system. It is simply understood as an advanced version of crontab. Airflow solves the problem of task dependency that crontab cannot solve. Airflow basic architecture Airflow […]
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Time：2021-9-9
environment Linux/Ubuntu20.04LTS mysql-client-core-8.0 mysql-server-8.0 (8.0.23-0ubuntu0.20.04.1) technological process Open the terminal and check whether MySQL is installed [email protected]:~$ mysql Command ‘mysql’ not found, but can be installed with: sudo apt install mysql-client-core-8.0 # version 8.0.23-0ubuntu0.20.04.1, or sudo apt install mariadb-client-core-10.3 # version 1:10.3.25-0ubuntu0.20.04.1 Follow the prompts to install it [email protected]:~$ sudo apt install mysql-client-core-8.0 Get: 1 […]
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Time：2021-9-8
Preface: This paper describes the construction and implementation of MySQL Cluster Based on master-slave replication + MHA + maxscaleMaster-slave switching，Failover，Read write separation and load balancingAnd other functions. 1、 Introduction: Maxscale is a MySQL data middleware developed by maridb. After configuring the master-slave replication architecture of MySQL, it hopes to realize the separation of read and […]
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Time：2021-9-7
There are many schemes for offline caching, 1、 What is offline caching? Offline caching is to store the data accessed by the user in the local database. The next time you open the app, first display the data you viewed last time (like wechat), and then refresh the request network to obtain new data. Take […]
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Time：2021-9-5
Vue basics primer 18: route nesting When routing jump is performed in a component container (for example, jump to login component and registration component in personal account component) Use the children attribute to implement sub routing <!DOCTYPE html> <html lang=”en”> <head> <meta charset=”UTF-8″> <meta name=”viewport” content=”width=device-width, initial-scale=1.0″> <meta http-equiv=”X-UA-Compatible” content=”ie=edge”> <title>Document</title> <script src=”https://cdn.jsdelivr.net/npm/vue”></script> <link rel=”stylesheet” […]
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Time：2021-9-4
brief introduction After the experiment, the system will automatically create a self built MySQL source database ECS instance and a target database RDS. Alibaba cloud experience Lab address (Alibaba cloud ECS experience scenario experience)https://developer.aliyun.com/… background knowledge Scene experience goalAfter the experiment, the system will automatically create a self built MySQL source database ECS instance and […]
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Time：2021-9-4
First, configure GIT and GitHub in IntelliJ idea.https://www.jianshu.com/p/ea1… If the password cannot be logged in, log in with token. See here:https://help.github.com/cn/gi… The following sections refer to the SSH key to connect the local and warehousehttps://blog.csdn.net/jingtin… Next, create a personal warehouse in GitHub. After creation, press the prompt of GitHub and enter it successively in the […]
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Time：2021-9-1
Sometimes we need to manage two or more GitHub accounts on one computer. For example, we need to use both personal and company GitHub accounts on the computer. How do we do that? (the following methods are also suitable for managing GitHub and gitlab accounts.) step Create a new SSH key Suppose you already have […]
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Time：2021-9-1
NPM common commands npm – v // View version number npm — help // View NPM all commands npm adduser // You can add an NPM account or register on the […]
