ElasticSearch -- full text search

ElasticSearch -- full text search Source: [Shangsi Valley] - Advanced chapter of grain mall 1, Introduction Official website: https://www.elastic.co/cn/what-is/elasticsearch Full text search is the most common requirement. Open source Elasticsearch is the first choice of full-text search engines. It can quickly store, search and analyze ...

Posted on Tue, 23 Nov 2021 06:20:43 -0500 by urneegrux

Java Basics (object-oriented Java inheritance)

Object oriented Java inheritance 1, Inheritance is that a subclass inherits the methods and properties of its parent class, which makes the code more concise and improves the reusability of the code //Dogs public class Dog {    private String color;    private String name;    private int price;    private int age; ​    public Dog(String ...

Posted on Thu, 18 Nov 2021 10:51:02 -0500 by chombone

Simple use of Lombok in Mybatis basic learning

preface: Hello, guys, I'm running snail rz. Of course, you can call me snail Jun. I'm a rookie who has studied Java for more than half a year. At the same time, I also have a great dream, that is, to become an excellent Java Architect one day. This Mybatis basic learning series is used to record the whole process of learning the basic ...

Posted on Fri, 05 Nov 2021 15:01:05 -0400 by law

HashMap Code Implementation (JDK7 Array + Chain List)

The first thing we need to do is tap code to implement HashMap, so what is HashMap? What is the data structure? What is the underlying principle? What is i hashMap? We all know that hashMap, a storage unit that stores data as key s and value s, should also be used in projects. And hashMap is an out-of-order storage structure, so why is it o ...

Posted on Mon, 01 Nov 2021 13:27:04 -0400 by coder_

IDEA's fast build SpringBoot+MyBatis project

In the past, when I started learning the framework, I imported the relevant packages bit by bit on the pom.xml file, which was too cumbersome. Let's talk about how to use idea to quickly build the SpringBoot+MyBatis project (clean and fast) 1, Create project Open idea and select create project (take idea 2020.1.2 as an example) Select S ...

Posted on Mon, 01 Nov 2021 12:09:33 -0400 by dennissanche

A brief review of spring MVC basic learning MVC architecture and the use of servlets

preface: Hello, guys, I'm running snail rz. Of course, you can call me snail Jun. I'm a rookie who has studied Java for more than half a year. At the same time, I also have a great dream, that is, to become an excellent Java Architect one day. This spring MVC basic learning series is used to record the whole process of my learning the ...

Posted on Sun, 31 Oct 2021 13:41:50 -0400 by imurkid

Build Maven + spring MVC + Tomcat demo project with idea

The environment jdk, maven, tomcat and idea are required. The demo version is as follows: jdk 8maven 3.5tomcat 8.5idea 2020.1.4   1. idea click file - > New - > project, select maven create, and select maven archetype webapp (note that check Create from archetype, otherwise you cannot select maven template)   2. Select the project locati ...

Posted on Sat, 30 Oct 2021 13:18:09 -0400 by soianyc

IDEA plug-in development, how do I move the company's publishing system to IDEA

It has to be said that JetBrains is very direct. Every programmer can find his own development tool on the official website of JetBrains. These development tools have brought us great convenience in our work. A variety of basic plug-ins, third-party plug-ins, who really knows, fast code prompt, syntax detection, and more importantly, many UI p ...

Posted on Fri, 29 Oct 2021 07:20:40 -0400 by richardk1

Implementation of Spring transaction in Spring basic learning

preface: Hello, guys, I'm running snail rz. Of course, you can call me snail Jun. I'm a rookie who has studied Java for more than half a year. At the same time, I also have a great dream, that is, to become an excellent Java Architect one day. This Spring basic learning series is used to record the whole process of learning the basic ...

Posted on Fri, 22 Oct 2021 11:12:16 -0400 by puritania

AOP aspect oriented programming for Spring basic learning

preface: Hello, guys, I'm running snail rz. Of course, you can call me snail Jun. I'm a rookie who has studied Java for more than half a year. At the same time, I also have a great dream, that is, to become an excellent Java Architect one day. This Spring basic learning series is used to record the whole process of learning the basic knowle ...

Posted on Sat, 16 Oct 2021 13:07:39 -0400 by scratchwax2003