在互联网软件开发领域，Spring Boot 框架以其便捷高效的开发体验，深受广大开发者的喜爱。其中，Spring Boot 3 中可执行 Jar 包的特性更是为项目的部署和运行带来了极大的便利。今天，我们就来深入探讨一下 Spring Boot 3 中 Jar 的运行原理，以及解压 Jar 包之后各个文件的含义。

jar文件是java的归档文件，用java虚拟机可以打开，以下是打开步骤：

工具

java JDK

方法/步骤

第一步：下载安装java jdk，如果是已经安装的可以跳过

第二步：安装完成后开始菜单里面会有一个JAVA的文件夹

第三步：现在找到你想打开的后缀为.jar的文件。

第四步：在该文件上右键，选择打开方式

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