Programming VIP

preface What is MVC mode In the classic MVC mode, m refers to the business model, V refers to the user interface, and C is the controller. The purpose of using MVC is to separate the implementation codes of M and V, so that the same program can use different forms of expression—— An idea of design pattern Spring MVC is a modu ...

aggregate Comparison of differences between sets and arrays Set basis Comparison of characteristics between set and array Features of collection class: it provides a storage model with variable storage space, and the stored data capacity can be changedThe difference between a set and an array: they all have in common: they are containers fo ...

development environment System: windows 11 jdk: 1.8 Framework: spring boot 2.1 4 + maven Tool: idea Tesseract installation Related links Official website: https://github.com/tesseract-ocr/tesseract Official documents: https://github.com/tesseract-ocr/tessdoc Language pack address: https://github.com/tesseract-ocr/tessdata Download addr ...

Object oriented inheritance II 1, Inherited benefits 1. Reduce the complexity of the code and improve the reusability of the code 2. Convenient for function expansion 3. It provides a premise for the use of polymorphism 2, Inherited format class A extends B{ } A: Subclass, derived class, subclass B: Parent class, superclass, base class, sup ...

Hello, everyone. Today I'd like to share with you the steps of JDBC connecting to the database. Steps to connect JDBC to database: 1. Load database driver 2. Get connection to database 3. Gets the execution object used to execute sql commands 4. Execute 5. Processing results 6. Recycling resources 1. Loading database driver: the higher ...

1, IO TCP chat program 1. IO introduction ① Server blocking point server.accept(); When getting sockets inputStream.read(bytes); When the input stream reads data pass ② The unified socket is a short connection and can be used as a short connection server. It cannot make a long connection. It belongs to the ask and answer mode. For exam ...

prerequisite: Install Hadoop 2 7.3 (under Linux system) Install MySQL (under Windows or Linux system) Install Hive (under Linux system) reference: Hive installation configuration Title: Download search data from Sogou lab for analysis The downloaded data contains 6 fields, and the data format is described as follows: Access time user ID ...

Recently, I am interested in expanding various functions in combination with the development capability of IDEA Plugin. Based on this, different cases are used to explore the IDEA Plugin plug-in development technology. I hope this systematic learning and verification summary can help more partners who need this technology.Source address: ...

In the past, there were many configuration files in the traditional ssm framework. After reading the documents for several days, I made a mess of the logical relationship of xml. At that time, I completely followed the version requirements of the demo on the Internet (jdk and tomcat), so in the end, I failed to run with various problems. Today ...

Message: information carrier            Queue: data structure, first in first out   Several application mechanisms of message queuing: 1. Asynchronous communication The communication mode of message queue is similar to that of distributed service call, but asynchronous communication ...