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Apache Kafka is an open-source distributed event streaming platform used by thousands of companies for high-performance data pipelines, streaming analytics, data integration, and mission-critical applications. 1 Overview 1.1 basic concepts 1.1.1 Topic By classifying messages through Topic mechanism, we can think that each Topic is a queue ...

Recently, major vulnerabilities have been revealed in log4j2. The company also urgently requires all projects to check themselves and upgrade the version of log4j to a safe version At present, we are using springboot version 1.5.9, and the built-in log4j2 is version 2.7. Although mybatis is integrated, the built-in version of log4i is still b ...

Portal VUE project (III) Page component optimization Breadcrumb navigation breadcrumbs displays the path information (Home / blog) of the current page in the effect of bread crumbs. Would it be better for the user experience if navigation click events or custom information could be added to the path. Modify / SRC / components / layout / ...

Official document Chinese website http://bootstrap-fileinput.com/events.html First, introduce the css and js files of bootstrap fileinput Note: here is a distinction between synchronous and asynchronous Synchronous callback takes filebatchuploadsuccess Asynchronous callback fileuploaded Configuration item uploadAsync: false, / / synchronous ...

Django template development & rewriting & using bootstrap This paper uses Django's own template system base.html Django's template system is inseparable from base Html is a template file, which is equivalent to a large framework. It is spliced through various block blocks, which is similar to vue's template. You can do it at ba ...

brief introduction Channel is not only the channel of data transmission and data processing in netty, but also an indispensable part of netty program. In netty, channel is an interface, which has different implementations for different data types or protocols. Although channel is very important, it is really mysterious in the code. Basica ...

1. Concept Is a front-end development frameworkBootstrap is based on HTML, CSS and JAVASCRIPT. It is simple and flexible, making Web development faster.Many css styles and js plug-ins are defined. Developers can directly use these styles and plug-ins to get rich page effectsFramework: a semi-finished software. Developers can develop and simpli ...

1, Create a maven project 2, Introduce the jar package that the project depends on [new knowledge mybatis reverse engineering, spring unit test] <?xml version="1.0" encoding="UTF-8"?> <project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http ...

1, IntroductionSocial media websites are popular. People often use comments to express their views. The comment function has become a part of the website.2, Knowledge points2.1 media objectsOfficial explanation: This is an abstract style used to build different types of components with images aligned to the left or right of the text content (su ...

1, Introduction Social media websites are popular. People often use comments to express their views. The comment function has become a part of the website. 2, Knowledge points 2.1 media objects Official explanation: This is an abstract style used to build different types of components with images aligned to the left or right of the text content ...