arthas
差别
这里会显示出您选择的修订版和当前版本之间的差别。
| 两侧同时换到之前的修订记录前一修订版 | |||
| arthas [2020/09/22 12:14] – plough | arthas [Unknown date] (当前版本) – 移除 - 外部编辑 (Unknown date) 127.0.0.1 | ||
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| 行 1: | 行 1: | ||
| - | < | ||
| - | # 下载 | ||
| - | wget https:// | ||
| - | # 启动 | ||
| - | java -jar arthas-boot.jar --target-ip 0.0.0.0 | ||
| - | # 帮助 | ||
| - | help | ||
| - | # 查看系统实时数据面板 | ||
| - | dashboard | ||
| - | # 打印线程 id1 的堆栈 | ||
| - | thread 1 | ||
| - | |||
| - | # 查找 JVM 中已加载的类 | ||
| - | sc -d *MathGame | ||
| - | # 反编译代码 | ||
| - | jad demo.MathGame | ||
| - | # 查看方法的返回值 | ||
| - | watch demo.MathGame primeFactors returnObj | ||
| - | |||
| - | # 彻底退出 | ||
| - | stop | ||
| - | </ | ||
| - | |||
| - | ===== 查看 JVM 信息 ===== | ||
| - | < | ||
| - | # 打印所有的 System Properties 信息 | ||
| - | sysprop | ||
| - | # 指定单个 key | ||
| - | sysprop java.version | ||
| - | # 设置新的 value | ||
| - | sysprop testKey testValue | ||
| - | |||
| - | # 获取环境变量 | ||
| - | sysenv | ||
| - | |||
| - | # 打印 JVM 的各种详细信息 | ||
| - | jvm | ||
| - | </ | ||
| - | |||
| - | ===== Tips ===== | ||
| - | < | ||
| - | # 快捷键 | ||
| - | keymap | ||
| - | # 历史命令 | ||
| - | history | ||
| - | # pipeline | ||
| - | sysprop | grep java | ||
| - | sysprop | wc -l | ||
| - | </ | ||
| - | |||
| - | ===== watch 相关 ===== | ||
| - | ==== 返回值表达式 ==== | ||
| - | * loader | ||
| - | * clazz | ||
| - | * method | ||
| - | * target | ||
| - | * params | ||
| - | * returnObj | ||
| - | * throwExp | ||
| - | * isBefore | ||
| - | * isThrow | ||
| - | * isReturn | ||
| - | |||
| - | 可以利用这些内置对象来组成不同的表达式。比如返回一个数组： | ||
| - | < | ||
| - | ==== 条件表达式 ==== | ||
| - | watch命令支持在第4个参数里写条件表达式，比如： | ||
| - | < | ||
| - | ==== 异常时捕获 ==== | ||
| - | watch命令支持-e选项，表示只捕获抛出异常时的请求： | ||
| - | < | ||
| - | watch com.example.demo.arthas.user.UserController * " | ||
| - | </ | ||
| - | ==== 按照耗时进行过滤 ==== | ||
| - | watch命令支持按请求耗时进行过滤，比如： | ||
| - | < | ||
| - | watch com.example.demo.arthas.user.UserController * ' | ||
| - | </ | ||
arthas.1600748040.txt.gz · 最后更改: 2022/12/28 17:53 (外部编辑)