Spring 5 integrates mongodb4 (spring 5.2.17 + mongodb4.4 + spring-data-mongo2. X)

spring5.2.17+mongodb4.4+spring-data-mongo2.x preface Recently, I have used the spring 5.2.17 + mongodb 4.4 integration framework for three days. Finally, I'm ready. Now I'll record the process. Environmental requirements 1,JDK-1.8 2,spring-5.2.17 3,mongodb4.4 4,spring-data-mongo-2.2.13 5,mongo-UTF-8...

Posted by hermzz on Thu, 30 Sep 2021 06:19:15 +0530

Introduction to mongodb -- installation and simple steps of mongodb

Introduction to mongodb -- installation and simple steps of mongodb 1. Decompression installation To custom directory Modify profile dbpath=D:\APP\mongodb\data # Modify to decompression path logpath=D:\APP\mongodb\log\mongodb.log # Modify to decompression path logappend=true journal=false quietUTF-8...

Posted by gekko on Sat, 09 Oct 2021 05:21:18 +0530

Advanced operations in MongoDB

one polymerization Aggregation in MongoDB is mainly used to process data (such as statistical average, summation, etc.) and return calculated data results. It is similar to count(*) in sql statements one insert data >db.article.insert({ title: 'MongoDB Overview', description: 'MongoDB is no sqlUTF-8...

Posted by john_bboy7 on Sat, 16 Oct 2021 06:54:14 +0530

Get started quickly with MongoDB database

MongoDB database 1, Introduction to NoSQL NoSQL(NoSQL = Not Only SQL), which means "not just SQL". In modern computing systems, a huge amount of data will be generated on the network every day. A large part of this data is processed by relational database management system (RDBMS). In 1970, E.FUTF-8...

Posted by paegn on Tue, 19 Oct 2021 01:53:49 +0530

Introduction to MongoDB with pictures and texts

Introduction to MongoDB MongoDB is a database based on distributed file storage. Written in C + +. It aims to provide scalable high-performance data storage solutions for WEB applications. MongoDB is a product between relational database and non relational database. It has the richest functionsUTF-8...

Posted by eevan79 on Mon, 25 Oct 2021 04:26:08 +0530

Detailed steps of MongoDB single machine security authentication and fragment cluster security authentication

1, Description MongoDB has no account by default and can be connected directly without authentication. The permissions in the actual project must be verified. Since 2016, there have been many ransom incidents of MongoDB hackers. Most of the security problems of MongoDB have exposed that the weaUTF-8...

Posted by stangoe on Sun, 13 Mar 2022 07:48:02 +0530

[high concurrency] deeply analyze the Callable interface

This article is pure dry goods. It deeply analyzes the Callable interface from the perspective of source code. I hope you can step down, open your IDE, and follow the article to see the source code. I believe you will gain a lot. 1. Introduction to callable interface The Callable interface is UTF-8...

Posted by NoFear on Fri, 18 Mar 2022 17:01:26 +0530

Vue project member management system teacher management module

catalogue 1, Teacher management - list query 1.1 nodejs add data list interface 1.1.1 create a teacher js 1.1.2 router. Add a method to get the teacher list in JS 1.2 Api calling interface 1.2.1 create a teacher.net under src/api JS, the calling interface code is as follows: 1.2.2 manually add UTF-8...

Posted by digitalflash on Wed, 23 Mar 2022 15:14:44 +0530

Common operations of Mongodb replica set

Manual master-slave switching Method 1: Modify master node status Demote the Primary node to the Secondary node myapp:PRIMARY> rs.stepDown() This command will demote the primary node to the Secondary node for 60s. If no new primary node is elected during this period, the node can request re-eleUTF-8...

Posted by abheesree on Wed, 25 May 2022 06:17:25 +0530

MongoDB - Introduction (installation, startup, shutdown, MongoShell)

Installation, startup and shutdown environment CentOS Linux release 7.9.2009 install wget https://fastdl.mongodb.org/linux/mongodb-linux-x86_64-rhel70-4.4.6.tgz tar -zxvf mongodb-linux-x86_64-rhel70-4.4.6.tgz Configure environment variables To facilitate the execution of the MongoDB command, wUTF-8...

Posted by erth on Thu, 26 May 2022 12:30:31 +0530