Programming VIP

1. Use idea to create an empty maven project and delete the src folder in it, because in the later stage, each module will be established under the new project, and the original src folder is not required. 2. Under the general project, maven is used to introduce the jar package of servlet and jsp, which can be found in( https://mvnrepository.co ...

During this time, I received a task, which is to jar the project according to the module. The purpose is: 1. Package according to modules to facilitate upgrading 2. After the module is subcontracted, which module is modified, update the corresponding module separately. There is no need to worry about the abnormal operation of the project due ...

1. Why should we optimize the jvm? In the local development environment, we rarely encounter the need to optimize the jvm, but in the production environment, we may have the following requirements: The running application is "stuck", the log does not output, and the program does not respond The CPU load of the server suddenly incr ...

1. Concept: Java database connectivity, Java database connection, Java language operation database JDBC essence: it is actually a set of rules defined by the official (sun company) to operate all relational databases, that is, interfaces. Each database manufacturer implements this interface and provides database driver jar package. We can use ...

Tip: after the article is written, the directory can be generated automatically. Please refer to the help document on the right for how to generate it target Our local projects should be released through Jar package or used by others. Today, I recorded the packaging process of the project completed by le idea and maven. Using Idea+Ma ...

Java Agent for bytecode instrumentation This article will explain the knowledge of Java Agent in detail, uncover its mystery, help developers understand its dark magic and help us complete more business needs What is Java Agent Java Agent, also known as Java probe, provides the function of adding bytecode to existing compiled Java classes, w ...

1, Preface: Since Jcenter has stopped serving, we usually publish the library to Maven Central;Maven Central, like Jcenter, is also a public warehouse. The library published on it can be used by yourself and others; Since Android Studio 4.2, Google has made Maven central a part of gradle 2, Process of Publishing Library (jar/aar) to Maven Cent ...

ASM is a popular class library used to read script code in Java. It is used to analyze and convert code based on bytecode layer. In the process of reading and writing, custom logic can be added to enhance or modify the original compiled bytecode. For example, CGLIB uses it to implement dynamic proxy. ASM is designed to generate and transfor ...

1, Scene description The modular management of parent-child project can solve most scenarios and problems of module version and dependency between modules Using spring boot plug-in for project packaging and deployment can solve 90% of the problems of continuous project integration and deployment In the process of project development, wi ...

01. What is annotation Annotation is from jdk5 New technologies introduced from 0Function of Annotation Not the program itself, you can explain the program (this is no different from comments)It can be read by other programs (such as compiler, etc.) Format of Annotation Annotations exist in the code as @ annotation name. You can also add ...