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How to design a system that supports multiple users answering questions online

How to design a system that supports multiple users to answer questions online requires specific code examples. With the development of the Internet, the demand for online learning and online examinations is increasing. A system that supports multi-user online question answering can effectively meet the needs of users and provide convenient learning and examination methods. This article will introduce how to design a system that supports multi-user online question answering and provide specific code examples. 1. System design functional requirements A system that supports multi-user registration, login and management. Users can create, edit and delete their own question sets, and other users can

Sep 25, 2023 pm 02:39 PM

设计多用户系统在线答题

How to develop a RESTful-based API using Java

How to use Java to develop a RESTful-based API. RESTful is an architectural style based on the HTTP protocol. It uses the GET, POST, PUT, DELETE and other methods of the HTTP protocol to operate resources. In Java development, some frameworks can be used to simplify the development process of RESTful API, such as SpringMVC, Jersey, etc. This article will introduce you in detail how to use Java to develop a RESTful-based

Sep 21, 2023 pm 03:53 PM

API Java restful

How to use Java to develop a full-stack development application based on JHipster

How to use Java to develop a full-stack development application based on JHipster. JHipster is a very popular full-stack development framework. It provides a complete set of tools and templates to help developers quickly build modern web applications. This article will introduce how to use Java to develop a full-stack application based on JHipster, and provide some specific code examples. Preparation work First, you need to install the following tools and environments locally: JavaJDK: Make sure you have installed the Java development

Sep 21, 2023 pm 12:30 PM

全栈开发 Java开发 JHipster

How to use Java to develop a Web application based on Spring MVC

Overview of how to use Java to develop a SpringMVC-based Web application SpringMVC is a mature Java Web application framework based on the MVC (Model-View-Controller) pattern that can simplify the Web application development process. This article will introduce how to develop a simple web application using Java and SpringMVC, with specific code examples. Step 1: Environment setup First, we need to ensure that the following environments have been installed: Java development environment (JDK

Sep 20, 2023 pm 01:36 PM

Web应用 Java开发 Spring MVC

Java development: How to use JNDI for database connection and resource management

Java development: Using JNDI for database connection and resource management In Java development, JNDI (JavaNamingandDirectoryInterface) is a standard API for managing naming and directory services. It can be used not only to access naming services, but also to connect to databases, manage resources, etc. This article will introduce how to use JNDI for database connection and resource management, and provide detailed code examples. Configure the JNDI data source first, in Ja

Sep 20, 2023 am 10:10 AM

JNDI (个字) 数据库连接 (个字) 资源管理 (个字)

How to set up an Internet server

Building an Internet server requires: 1. Selecting the appropriate hardware and operating system. The first step is to select the appropriate hardware and operating system. 2. Installing and configuring the operating system is a key step in building an Internet server. 3. Installing and configuring the server software. , is the next step in building an Internet server. Common server software includes Apache, Nginx, Tomcat, etc.; 4. Configuring firewall and security is an important step in building an Internet server; 5. Domain name resolution and configuration is the last step in building an Internet server. step.

Sep 19, 2023 pm 02:45 PM

服务器互联网

Practical experience sharing and best practice summary of Java technology optimization to improve database search performance

Practical experience sharing and best practice summary of Java technology optimization to improve database search performance Summary: In large-scale applications, database search performance is a key factor. This article will share some practical experience in optimizing database search performance with Java technology and summarize some best practices. Specific code examples will be provided in the article to help readers better understand optimization techniques. Introduction: With the rapid development of the Internet, more and more applications need to process large amounts of data. Database searches are the most common and frequent operations in applications

Sep 18, 2023 pm 01:24 PM

最佳实践经验分享 Java技术优化实战数据库搜索性能

Simple bill splitting application written using Java Servlets

Servlets are small Java modules used on the server side of web connections to enhance the functionality of web servers. All methods and classes used to create servlets can be found in the "javax.servlet" and "javax.servlet.http" packages. Therefore, it is very important to import servlets into your program before using them. In this article, we will develop a simple bill splitting application using JavaServlet. Before you begin, make sure you have NetBeans IDE and Apache Tomcat server installed. Steps to Build a Simple Bill Splitter To develop this application, follow these steps - Step 1 Open

Sep 09, 2023 am 11:57 AM

What are the differences between java web and java

The difference between java web and java lies in definition and purpose, architecture and components, development process, application scenarios, technology stack and framework, etc. Detailed introduction: 1. Definition and purpose. Java is an object-oriented programming language that is platform-independent and can run on different operating systems. It is widely used in various fields, including desktop applications, mobile applications, and embedded applications. Java Web is a set of technologies developed based on the Java technology stack for building Web applications, including Java Servlet and so on.

Sep 05, 2023 pm 02:14 PM

java web java

What are the advantages of the spring boot framework?

The advantages of the spring boot framework include simplified configuration, rapid development, embedded server, microservice support, automated testing and ecosystem support. Detailed introduction: 1. Simplify configuration. Spring Boot adopts the principle of convention over configuration, reducing developers’ configuration work through default configuration and automatic configuration. It provides a set of default configuration options that can automatically configure all aspects of the application. , such as data sources, web servers, security, etc.; 2. Rapid development, Spring Boot provides a set of rapid development tools, etc.

Sep 05, 2023 am 09:51 AM

spring boot

Solution to Java missing dependency library exception (MissingDependencyException)

Solution to Java MissingDependencyException During the Java development process, we often encounter exceptions of missing dependency libraries. This kind of exception usually occurs when the program is running, causing it to fail to execute normally. To solve this problem, we need to find the missing dependent library and add it to the project. This article will introduce some common methods to solve the problem of missing dependent libraries in Java and provide corresponding code examples. How to solve Java missing dependent library exception

Aug 26, 2023 pm 04:20 PM

Java 依赖库异常解决

How to solve Java file upload size limit exception (FileUploadSizeLimitExceededException)

How to solve the Java file upload size limit exception (FileUploadSizeLimitExceededException) Introduction: In the process of developing web applications, file upload is a common functional requirement. However, when processing file uploads, you may sometimes encounter a Java file upload size limit exception (FileUploadSizeLimitExceededException). This exception usually occurs when the file upload size exceeds the server's allowed size.

Aug 25, 2023 pm 09:58 PM

文件上传 Java 大小限制

Dubbo source code analysis: Beginner's guide

If you are already proficient in using Dubbo, this article is not suitable for you, but if you want to understand Dubbo and learn Dubbo, it is very suitable for you.

Aug 23, 2023 pm 02:44 PM

dubbo

It is recommended to collect 100 Linux interview questions with answers

This article has a total of more than 30,000 words, covering Linux overview, disk, directory, file, security, syntax level, practical combat, file management commands, document editing commands, disk management commands, network communication commands, system management commands, backup compression commands, etc. Dismantling Linux knowledge points.

Aug 23, 2023 pm 02:37 PM

java面试题