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little-flower's Introduction

little-flower (小花儿)

一个简单的 web 版 JVM 监控器(只测试过连接 HotSpot ,JDK 8)

Java Spring Boot wechat

以 JMX 技术为基础,差不多实现了一个 web 版的 visualVM,具备以下功能:

  • 支持连接本地 JVM 和 远程 JVM

  • 展示所有 MBeans,并可查看属性及调用操作

  • 仪表盘功能:

    • 实时系统信息,系统 CPU 使用率、内存占用等
    • JVM 参数信息
    • 实时 CPU 使用率曲线图、实时 Heap 、MetaSpace 使用量曲线图、实时类加载量曲线图、实时线程数曲线图
    • 垃圾收集器及垃圾收集次数

技术架构

服务端: Java 1.8 + Spring Boot 2.6.16 + jmxtools

仅后端运行方式

当前分支版本中,已经将最新版编译好的前端代码放到 Spring Boot 项目 resource/public 目录下,所以简单的 运行方式是直接运行 Spring Boot 项目。

项目设置的端口是 6002,并且设置了相对路径 jmx

正常启动项目后,在浏览器打开 http://localhost:6002/jmx/ ,即可使用。

  1. 前端启动成功后,在浏览器访问 http://localhost:3000/jmx,注意相对路径 /jmx,这是在项目路由中设置的。

  2. 在页面右侧会出现当前机器已启动的 JVM 进程;

  3. 点击任意一个 JVM 后面的「连接」按钮,即可监控此 JVM ,可切换 tab 查看系统信息、JVM 信息、试试监控图表、垃圾收集信息,以及 domains 信息

前后端运行方式

前端代码在 另外一个仓库中,使用方式可查看此仓库。

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