java_jdbc and spring5_ Implementation and comparison of jdbctemplate (idea version)
catalogue preface 1, What is a JdbcTemplate 2, Implementation of jdbc 1.jdbc core steps 2. Concrete realization 3, Implementation of JdbcTemplate 1. Understanding of jdbctemplate 2. Concrete realization epilogue preface Novices learn the content of spring 5 framework JdbcTemplate through idea. UTF-8...
Posted by nigma on Thu, 14 Oct 2021 00:24:34 +0530
Method of publishing jar package to maven central warehouse
After writing code for many years, you always have some accumulation or good tools written by yourself. If you want to share them, you need to publish your jar package to maven central warehouse. For how to publish to maven central warehouse, please refer to the following steps! step Work orderUTF-8...
Posted by BahBah on Sat, 16 Oct 2021 14:56:43 +0530
Small project: supermarket management system
SMBMS classification How to build the project? Consider using a jar package without maven dependencies 1, Preparation for project construction 1. Build maven project; 2. Configure Tomcat; 3. Test whether the project runs; 4. Import the jar packages encountered in the project; 5. Create project UTF-8...
Posted by QuizToon on Fri, 22 Oct 2021 08:38:00 +0530
Dependency conflicts in Maven
The scenario shown in the following figure: the project needs to rely on jar package A (recorded as jarA) and jar package B (recorded as jarB). jarA and jarB also need to rely on jar package C (recorded as jarC). The difference is that jarA needs jarC version 1.0 and jarB needs jarC version 2.0UTF-8...
Posted by bibie on Thu, 28 Oct 2021 12:14:43 +0530
Java uses Hutool tool to complete encryption and decryption
explain POM When using Hutool encryption and decryption tool, the following dependencies are introduced cn.hutool hutool-crypto 5.7.15 Symmetric encryption and asymmetric encryption Add end teachers to getUTF-8...
Posted by sdotsen on Mon, 08 Nov 2021 12:26:04 +0530
Maven learns to use Maven--4.1 to create Maven projects based on coordinates in the command line environment
1, Create Maven project based on coordinates 1.Maven's core concept: coordinates ① Coordinates in Mathematics Using x, y and z vectors as the coordinate system of space, you can uniquely locate a point in space ② Coordinates in Maven (1) vector description Use three vectors to uniquely locate UTF-8...
Posted by skoobi on Tue, 15 Mar 2022 10:46:05 +0530
Why is the MySQL connection dead?
1, Background Recently, there are A lot of test feedback problems, among which the problems raised about system reliability test are troublesome. First, these problems sometimes belong to "accidental" phenomenon, which is difficult to reproduce quickly in the environment; Secondly, the positionUTF-8...
Posted by peter11 on Wed, 23 Mar 2022 11:22:31 +0530
Maven User Manual
what is Maven Apache Maven is a project management tool based on the concept of the Project Object Model (POM), which manages project builds, reports, and documentation through a small piece of descriptive information. effect Maven is a cross-platform project management tool, mainly serving JaUTF-8...
Posted by DoomyCheese on Thu, 19 May 2022 04:12:44 +0530
The principle of HBase BulkLoad and the practice of writing data in batches
Table of contents1. Introduction to HBase BulkLoadforewordWhy use bulkload to import?The realization principle of bulkload2. HBase BulkLoad writes data in batchesDevelop code to generate HFile filesMake it into a jar package and submit it to the cluster for runningObserve the output results on UTF-8...
Posted by funkyfela on Mon, 05 Dec 2022 07:41:56 +0530
Pycharm activation registration code (pycharm license activation)
New activation method:https://www.cnblogs.com/huahuawang/p/15098270.htmlsource: https://www.nocang.com/pycharm2019jihuoma/The activation code URL contains lookdiv.com The key inside is lookdiv.comOpen URL: lookdiv.comEnter: lookdiv.com click submitVarious software activation codes: http://www.iUTF-8...
Posted by carsonk on Sat, 18 Feb 2023 14:41:17 +0530