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jcat's Introduction

概述

这是一个Java开发者控制台,类似前端的Chrome的开发者控制台,可以执行任意java代码。

其原理是在jvm进程中基于javaagent方式注入一个WEB管理后台,并接收运行groovy脚本。

Snipaste_2024-08-10_10-14-25

启动方式

1.启动加载器

java -jar jcat-boot.jar

2.选择目标jvm应用

常见问题

找不到tools.jar包

java.lang.NoClassDefFoundError: com/sun/tools/attach/AttachNotSupportedException 原因:该问题发生在jdk8,原因是%JAVA_HOME%/lib/tools.jar包不存在 解决办法:去oracle官网下载一个jdk8并把tools.jar复制到%JAVA_HOME%/lib/ 或%JAVA_HOME%/jre/lib/ext/ 目录中。

连接attach目标虚拟机失败

应用权限不够,改用管理员方式启动 sudo java -jar jcat-boot.jar

jcat's People

Contributors

tommy811 avatar

Stargazers

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