Mybatis often meet questions
#{} is precompiled processing, and ${} is string substitution. Using #{} can effectively prevent SQL injection and improve system security. I think the second way...
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Tag: Java EE
JavaWeb foundation Filter
December 29, 2023
by Anya Dass
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Servlet, Filter, Listener Filter is aWeb service component Filter that adds processing functions to the request and response processing of Web applications
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Let’s talk about the Java thread pool
December 28, 2023
by Kara Fuentes
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. The article is explained from the perspective of pure interview, so there are many details that have not been prepared. It is difficult to...
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Are 2020 still want to learn JSP?
December 28, 2023
by 王佩君
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2020, still need to learn JSP? I'm sure some of you who are still in college have this question. In fact, I have seen similar...
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Shenzhen a small company interview question: what is AQS? Fair and unfair locks? Already?
December 28, 2023
by Madison Cairns-Stevenson
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The article is explained from the perspective of pure interview, so there are many details that have not been prepared. Want to answer AQS and...
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Getting Started with Java to Architecture – Excellent books
December 28, 2023
by Jennifer Curtis
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Recently I have been thinking about how to learn and study Java efficiently. If I want to master a new technology completely from entry to...
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Inheritance is one of the three main features of Java orientation
December 28, 2023
by 王雅玲
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Last time I wrote for you the "inheritance", inheritance is one of the three object-oriented features is a necessary knowledge of Java learning, if you...
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Caffeine, a high-performance Java cache library
December 28, 2023
by Tammy Hood
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In this article, I introduce Caffeine, a high-performance Java cache library. One fundamental difference between a cache and a Map is that the cache can...
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Getting Started with Linux (3) To Configuring Linux networks
December 28, 2023
by 段雅芳
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After Linux is installed on a VM, you must be able to access Linux from the host and access the Internet. The following describes how...
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ServletContext An introduction to context objects and use cases
December 27, 2023
by Ishita Batta
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The concept of the ServletContext context object in Javaweb was introduced in detail, as well as some common usage methods.
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JSP and MVC development patterns
December 27, 2023
by Dennis Gray
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JSP1. Directive function: configure JSP page or import resource file format: <%@ directive name attribute name 1= attribute value 1 Attribute name 2= attribute value...
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Play MySQL (7) view
December 27, 2023
by Emma Booth
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In this chapter, we will learn about views in MySQL. Views are an important component of a database. We will explain what a view is,...
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Multithreading basics
December 27, 2023
by Sarah Green
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The article is explained from the perspective of pure interview, so there are many details that are not foreshadowed. From the feedback of the last...
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What is a Push message
December 27, 2023
by Kevin Arroyo
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Push message is a very important and common type among so many types. Recently, I hope to make some new attempts against Push Push, so...
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Servlet development cases and Servlet details
December 27, 2023
by Tracey Manning
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The concept of Java Servlet as well as the development method and details are introduced in detail. The concept of Java Servlet as well as...
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(4) Sentinel basic flow control rules
December 27, 2023
by Patricia Nolan
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Large Internet applications have a large amount of user traffic. When they encounter some special time nodes, such as "Double Eleven" and "Spring Festival", a...
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The most detailed SpringBoot configuration file details
December 27, 2023
by Ellen Christensen
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Spring Boot provides a range of automated configurations for common development scenarios to reduce the complexity of template-based configurations with few changes. However, we still...
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Cookies, Session
December 26, 2023
by Bobby Rangel
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Session is divided into client Session and server Session. When a user establishes a connection with the Web server for the first time, the server...
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Java collection Queue – PriorityQueue
December 25, 2023
by Rebecca Short
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There are two types of priority queues: maximum priority queues, in which the largest element is first queued; Minimum priority queue. The smallest current element...
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Details of the HttpServletResponse response object and how to use it
December 25, 2023
by Ojas Shan
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Common uses and apis for HttpServletResponse in servlets, such as setting the response header, response body, redirection, etc.
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Development is no longer boring, recommend several fun and practical IDEA plug-ins
December 25, 2023
by Eva Barr
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Here does not talk about what technology, pure for fun, collected several good fun IDEA plug-in, recommend. After installing this plug-in, I found myself unable...
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Play MySQL (6) index
December 25, 2023
by Neelofar Mahajan
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In this chapter, we will learn about indexes in MySQL. This article will introduce the function of indexes, index classification, index syntax, index usage strategy...
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GitHub open Source project
December 25, 2023
by Katherine Walton
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You can't write programs, but you can't have never heard of Github, someone might say, that Github? right right Yes, that's github. Github is the...
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XA business water is very deep, young man I am afraid you can not grasp!
December 25, 2023
by Martyn Stevenson
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@[TOC] Distributed Transaction series continues! TCC mode and AT mode in Seata are introduced by Songo. If you have not seen it, you can experience...
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Comparison and difference between BIO and NIO mode of Tomcat Connector
December 24, 2023
by Chelsea Parrish DDS
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This paper introduces in detail the BIO and NIO modules, modes and workflow of Tomcat Connector components, as well as the differences between them.
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Wechat applets development — basic knowledge
December 24, 2023
by Kathy Manning
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This is the 21st day of my Participation in the August Update Challenge. See the details: August Update Challenge 1, Directory Structure 2, Configuring a...
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Java maze small game, old programmers spend a day to complete, you can?
December 23, 2023
by Reece Iqbal
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Take the starting point as the current maze unit and mark it as visited. Loop 1 if there are unmarked maze units. If the current...
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Kafka data loss, repeated consumption, sequential consumption issues
December 23, 2023
by Michael Hart
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Interviewer: Today I want to ask, do you think Kafka loses data? Candidates: Well, using Kafka, it is possible to lose message candidates in the...
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Getting Started with Linux (7) ~ Nginx Deployment Vue project
December 22, 2023
by Elijah Williamson
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1, download Nginx http://nginx.org/en/download.wget - https://nginx.org/download/nginx-1.12.0.tar.tar - ZXVF c Nginx - 1.12.2. Tar... If the startup is successful, open the browser and enter: HTTP...
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MySQL > select * from ‘MySQL’
December 22, 2023
by 鄧宗翰
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In this chapter, we will learn the advanced parts of SQL queries, such as inner joins, outer joins, and subqueries, with which we will be...
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