A long article to study Spring - DI

3 DI 3.1 setter injection of dependency injection Note: Dependency injection is actually a process of assigning values ​​to properties in the current bean; it is actually very simple to implement this process in Spring, you only need to create a sub-label property for the corresponding bean tag in the configuration file, and specify the n ...

Posted by the_NEWBIE_ON_THE_BLOCK on Mon, 03 Oct 2022 00:26:35 +0300

Computer completed topic selection recommendation spring boot+vue used car trading platform ssm+vue used car auction system used car mall java used car auction system used car trading management system used car trading system

πŸ’–πŸ’– Author: IT Transition Valley Design Exhibition πŸ’™πŸ’™ Profile: I have been engaged in computer professional training and teaching for a long time, and I also love teaching in class. I am good at Java, WeChat applet, Python, Golang, Android, etc. I usually do some customized project development, code explanation, defense teaching, document wr ...

Posted by Bikkebakke on Sun, 25 Sep 2022 21:45:45 +0300

Detailed explanation of Redis caching problems

cache penetrationCache penetration means that the data requested by the client does not exist in the cache and the database, so the cache will never take effect, and these requests will hit the databaseIf a malicious user uses countless threads to concurrently access non-existent data, these requests will all reach the database, which is likely ...

Posted by bliss322 on Sun, 25 Sep 2022 21:01:59 +0300

Implementation of Common Sorting Algorithms (Java Version)

Common sorting algorithms 1, Select Sort Selective sorting is a simple and intuitive sorting algorithm 1. First, find the smallest (large) element in the unsorted sequence and store it at the beginning of the sorted sequence.2. Then continue to find the smallest (largest) element from the remaining unsorted elements, and then put it at the e ...

Posted by Clukey on Sat, 24 Sep 2022 21:46:56 +0300

HashMap's 7 traversal methods and performance analysis!

In general, HashMap traversal can be divided into the following four categories: Iterator mode traversal;For Each traversal;Lambda expression traversal (JDK 1.8+);Streams API traversal (JDK 1.8+). However, each type has different implementation methods, so the specific traversal methods can be divided into the following 7 types: 1. Use Itera ...

Posted by bookbuyer2000 on Mon, 19 Sep 2022 21:21:02 +0300

In-depth rich text editor

Editor introduction Common rich text editors can be divided into two categories, which are implemented by textarea and contenteditable. textarea The structure is simple and easy to use. Some text formats and complex styles are difficult to implement. It is recommended to be used only in scenarios with low editing requirements. contenteditab ...

Posted by jcornett on Mon, 19 Sep 2022 21:14:08 +0300

Java Collection Framework System - The whole system of Collection and Map from practicality, comparison to underlying analysis

Java Collection Framework System Summary Notice: This article cites a large number of high-quality articles, and some of the applied ones have links to directly view the in-depth analysis of knowledge points.As for the content involving the code section, it is presented in the form of Demo + annotations. Demo mainly involves basic and common ...

Posted by mrobertson on Sun, 18 Sep 2022 21:24:48 +0300

Java advanced programming class set framework (collection class)

Introduction to the Class Set Framework     In actual development, no development can leave the array, but the traditional array is very cumbersome to use, and the length is its fatal flaw. Officially, due to the length problem, it is impossible to use it on a large scale, but it is far from being used during development. Without arrays, we ca ...

Posted by cmgmyr on Sun, 18 Sep 2022 21:19:40 +0300

Weblogic Series Vulnerability Recurrence

#Disclaimer: This is a personal note, which is only for learning. It is prohibited to use it for any illegal act. Any illegal act has nothing to do with me. Weblogic XMLDecoder Deserialization Vulnerability (CVE-2017-10271) Vulnerability Overview Vulnerability No.: CVE-2017-10271 Vulnerability impact: wls wsat XMLDecoder deserialization vu ...

Posted by chelsea7 on Sat, 17 Sep 2022 21:36:21 +0300

shiro security framework

Rights management: Rights management is required for systems involving user participation. Rights management belongs to the category of system security. Rights management is to realize the control of user access to the system. Users can be controlled according to security rules or security policies, and users can only access their own user ...

Posted by earthlingzed on Thu, 15 Sep 2022 21:52:31 +0300