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# Maven Introduction Maven is a project management and build automation tool, primarily used for Java projects, but also applicable to other languages (such as Kotlin, Scala). Maven addresses two aspects of software building: * How software is built. * Software dependencies. !(#) Maven's core features include: * **Project Building** (compile, test, package, deploy) * **Dependency Management** (automatically download and manage third-party libraries) * **Standardized Project Structure** (convention over configuration) * **Plugin Extensions** (support for custom build processes) ### **Maven Development History** * **2002**: Maven was created by **Jason van Zyl** to replace Apache Ant (Ant required manual build scripts, while Maven provides standardized processes). * **2004**: Maven 1.0 released. * **2005**: Maven 2.0 introduced **POM (Project Object Model)** and **dependency management**. * **2010**: Maven 3.0 released, optimizing performance and improving APIs. * **Present**: Maven remains one of the most popular build tools in the Java ecosystem, co-dominating the market with Gradle. ### **Maven Main Features and Advantages** | **Feature** | **Description** | | --- | --- | | **Dependency Management** | Automatically download and manage `.jar` files, avoiding manual dependency management | | **Standardized Build Process** | Provides standard lifecycle phases such as `clean`, `compile`, `test`, `package` | | **Project Templates (Archetype)** | Quickly generate project structures (e.g., `maven-archetype-quickstart`) | | **Multi-Module Support** | Suitable for large projects, can be split into multiple sub-modules | | **Plugin Extensions** | Support for custom build tasks (e.g., `maven-compiler-plugin` to specify Java version) | **Advantages:** * **Reduced Configuration**: Convention over configuration, reducing manual configuration like `build.xml` (Ant). * **Automatic Dependency Management**: Just declare dependencies, Maven automatically downloads and resolves conflicts. * **Cross-Platform**: Based on Java, can run on Windows, Linux, and macOS. * **IDE Integration**: Eclipse, IntelliJ IDEA, and VS Code all support Maven. ### **Maven vs. Other Build Tools** | **Tool** | **Characteristics** | **Applicable Scenarios** | | --- | --- | --- | | **Maven** | XML-based configuration, strong dependency management, standardized build process | Traditional Java projects requiring stable dependency management | | **Gradle** | Groovy/Kotlin DSL based, more flexible build scripts, better performance | Android, Kotlin projects requiring custom build processes | | **Ant** | XML-based, manually write build steps, high flexibility | Legacy projects requiring fine-grained build control |