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vue3-vite2-blog-h5 A simple version of mobile blog. The front-end project is mainly built by using Vue3's latest syntax sugar < script setup > and Vant3.0; Tsx is used to render common components; Vite 2.0 is used to build and package. The back-end project is mainly designed by Node framework Koa2 and MongoDB database. PC blog online pr ...

If you don't know this before reading this article, you won't simply use mongodb. Stamp here 1. Install mongodb dependency, here we install v2.2.33, if we've encountered it beforeDb.collectionIs not function is really just a mongodb library version issue (desktop creation of fml files) My project file name is fml C:\Users\admin\Desktop\fml> ...

Rent price analysis of rental housing in Shanghai In this paper, we use crawler to crawl the housing rental data of Shanghai, and use python to clean, analyze and display the data, and carry out data mining modeling and prediction for housing rent. # Import related packages import pandas as pd import numpy as np import seaborn as sns import ma ...

Mongodb's export mongodump is used in combination with mongorestore import tool. Can be used for database backup and restore. mongodump is a utility for creating binary exports of database content. mongodump can export data from mongod or mongos instances; that is, it can export data from independent, replica set and shard cluster deployment.I ...

1, Mongoose in egg 1. Installing mongoose in an egg project cnpm i mongoose --save 2. Configure the eg mongoose plug-in in config > plugin.js exports.mongoose = { enable: true, package: "egg-mongoose" }; 3. Configure the database connection address in config > config.default.js config.mongoose = { client: { // url ...

1. mongoose default parameter: when adding data, if no data is passed in, the data configured by default will be used. Connect to the database, a warning is reported below, useNewUrlParser:true This attribute will identify the db needed to verify the user in the url. You do not need to specify it before upgrading. You must specify it before u ...

Using excel file to import data and integrating mongodb to implement punch in system Environmental parameters Development tools: IDEA Basic environment: Maven+JDK8 Main technologies: SpringBoot, Mongodb Spring boot version: 2.2.6   The implementation steps are as follows: 1. Add dependency <dependency> <groupId>o ...

The connection between Java and mongodb 1. Single mongodb Mongo mg = new Mongo();//The default connection port of 127.0.0.1 is 27017 Mongo mg = new Mongo(ip);//You can specify that the ip port defaults to 27017 Mongo mg = new Mongo(ip,port);//ip and port can also be specified 2. Connect two mongodb s //ip is the host ip address, port is the ...

First on the renderings: Installation environment Centos,php7,MongoDB3,nginx php extension mongodb: http://pecl.php.net/package/mongodbtideways_xhprof: https://github.com/tideways/php-xhprof-extension Install MongoDB3 By default, MongoDB2 is installed in my environment yum. xhgui requires version 3 or above. Create a yum source for MongoDB3 vi ...

Common replication sets The common architecture of online environment is replica set, which can be understood as one master and many slaves. Below: 1 master and 2 slave Below: one master one slave one arbitration Server information: Three machines are configured with 2-core 16G memory storage disk 100G "host" : "10.1.1.159:27020""host" : "1 ...