Category：Java
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“JavaSE “Lambda Expressions
Lambda expression summary functional interface explanatory note grammatical Basic Use of Lambda Expressions Variable Capture Use of Lambda in Collections 🍌forEach() 🍌sort summarize summary Lambda expressions are an important new feature in Java SE 8, based on the mathematical λ-arithmetic of the name, which can also be called closures.It allows us to passdisplayed formulaSubstitute Functional […]
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Installation and use of the new generation of JavaScript package manager
Article Catalog Yarn: Installation and Use of the Next Generation JavaScript Package Manager introductory I. Yarn Installation 1. System requirements 2. Install Yarn Installation on Mac or Linux Installation on Windows 3. Verification of installation Second, the basic use of Yarn 1. Initialization project 2. Installation of dependencies 3. Use of dependencies 4. Viewing and […]
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Java Microservices Distributed Split-Repository-Split-Table ShardingSphere – ShardingSphere-JDBC
preamble Apache ShardingSphere is a distributed database ecosystem that transforms any database into a distributed database and enhances it with capabilities such as data sharding, elastic scaling, encryption, and more. Apache ShardingSphere is designed with the philosophy of Database Plus to build a standard and ecosystem for the upper layers of heterogeneous databases. It focuses […]
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MySQL Installation Tutorial
I. MySQL Download (Installation Version) 1. Go to the official MySQL website Official website address:https://www.mysql.com/ 2. Click [DOWNLOADS]. 3. Scroll down and click [MySQL Community (GPL) Downloads] to download MySQL Community Edition. 4. Click [MySQL Installer for Windows] to download the MySQL installer. 5. You will then come to the MySQL latest version download page.（”MySQL […]
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Downloading, installing, and configuring JDK 8
catalogs Introduction to JDKsummaryVersion DescriptionBasic components of the JDK Installation of JDK on windowsdownloadingmountingdeployment Installing the JDK on Linuxdownloadingmountingdeployment Introduction to JDK summary Synopsis:Java Development Kit (JDK) is Sun’s (acquired by Oracle) software development kit for Java developers. Since the introduction of Java, the JDK has become the most widely used Java SDK (Software development […]
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Flink CDC in Detail
catalogs I. Introduction to CDC ?Flink CDC case practiceThree, Flink-CDC 2.0IV. Analysis of core principles I. Introduction to CDC ? What is CDC? CDC stands for Change Data Capture. The core idea is to monitor and capture database changes (including insertion, update, and deletion of data or data tables, etc.), record these changes in the […]
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SpringBoot Dynamic Timed Tasks
The timed task function in this article (Add, delete, change, start, pause) Without further ado, straight to the code, you guys can use it with direct CV!!!! Thread pool configuration class for executing timed tasks import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; import org.springframework.scheduling.TaskScheduler; import org.springframework.scheduling.concurrent.ThreadPoolTaskScheduler; @Configuration public class SchedulingConfig { @Bean public TaskScheduler taskScheduler() { ThreadPoolTaskScheduler taskScheduler […]
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Java 8: Stream API Stream Operations
Java 8：Stream API The Stream API in Java 8 is a set of new features for working with collection data; providing a way to manipulate collections in a declarative style, simplifying the processing of collections, making the code cleaner, more elegant, and able to work with data more efficiently; This style treats the set of […]
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JS built-in objects
preamble In today’s digital age, front-end technologies are increasingly becoming key to shaping the user experience. We need to use some properties of many js built-in objects in our development to help us develop faster. Maybe you are a newbie to the front-end field or a developer who wants to know more about built-in objects, […]
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Vue Installation and Configuration
I. Download and Install Vue Official website download addressDownload | Node.js Choose the version that suits you, we recommend LTS, Long Term Stable. I chose Windows Installer(.msi) 64-bit. Once downloaded, double-click on the downloaded installation package. Click next Check I accept………… Click next It is recommended to change the installation directory to the one you […]