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LEVEL TYPE NAME VALUE SUMMARY DESCRIPTION
-------------------------------------------------------------------------------------------------------
< span class = "token number" > 0< / span > boolea unsafe < span class = "token boolean" > false< / span > Option to support sy This option enables to proxy functionality
n stem-level class of JVM classes. Due to serious security r
isk a JVM crash is possibly be introduced.
Do not activate it unless you are able to
manage.
< span class = "token number" > 1< / span > boolea dump < span class = "token boolean" > false< / span > Option to dump the e This option enables the enhanced classes t
n nhanced classes o be dumped to external < span class = "token function" > file< / span > < span class = "token keyword" > for< / span > further d
e-compilation and analysis.
< span class = "token number" > 1< / span > boolea batch-re-tra < span class = "token boolean" > true< / span > Option to support ba This options enables to reTransform classe
n nsform tch reTransform Clas s with batch mode.
s
< span class = "token number" > 2< / span > boolea json-format < span class = "token boolean" > false< / span > Option to support JS This option enables to < span class = "token function" > format< / span > object outpu
n ON < span class = "token function" > format< / span > of object t with JSON when < span class = "token parameter variable" > -x< / span > option selected.
output
< span class = "token number" > 1< / span > boolea disable-sub- < span class = "token boolean" > false< / span > Option to control < span class = "token keyword" > in< / span > This option disable to include sub class w
n class clude sub class when hen matching class.
class matching
< span class = "token number" > 1< / span > boolea support-defa < span class = "token boolean" > true< / span > Option to control < span class = "token keyword" > in< / span > This option disable to include default met
n ult-method clude default method hod < span class = "token keyword" > in< / span > interface when matching class.
< span class = "token keyword" > in< / span > interface when c
lass matching
< span class = "token number" > 1< / span > boolea save-result < span class = "token boolean" > false< / span > Option to print < span class = "token function" > comm< / span > This option enables to save each < span class = "token builtin class-name" > command< / span > < span class = "token string" > ' s
n and' < / span > s result to log result to log file, < span class = "token function" > which< / span > path is < span class = "token variable" > ${user.
file home}< / span > /logs/arthas-cache/result.log.
< span class = "token number" > 2< / span > String job-timeout 1d Option to job timeou This option setting job timeout,The unit c
t an be d, h, m, s < span class = "token keyword" > for< / span > day, hour, minute, se
cond. 1d is one day < span class = "token keyword" > in< / span > default
< span class = "token number" > 1< / span > boolea print-parent < span class = "token boolean" > true< / span > Option to print all This option enables print files < span class = "token keyword" > in< / span > parent
n < span class = "token parameter variable" > -fields< / span > fileds < span class = "token keyword" > in< / span > parent cla class, default value true.
ss
< span class = "token number" > 1< / span > boolea verbose < span class = "token boolean" > false< / span > Option to print verb This option enables print verbose informat
n ose information ion, default value false.
< span class = "token number" > 1< / span > boolea strict < span class = "token boolean" > true< / span > Option to strict mod By default, strict mode is true, not allow
n e ed to < span class = "token builtin class-name" > set< / span > object properties. Want to < span class = "token builtin class-name" > set< / span > o
bject properties, execute < span class = "token variable" > < span class = "token variable" > `< / span > options strict
< span class = "token boolean" > false< / span > < span class = "token variable" > `< / span > < / span >
< / code > < / pre > < div class = "line-numbers" aria-hidden = "true" > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < / div > < / div > < h2 id = "获取-option-的值" tabindex = "-1" > < a class = "header-anchor" href = "#获取-option-的值" aria-hidden = "true" > #< / a > 获取 option 的值< / h2 > < div class = "language-text ext-text line-numbers-mode" > < pre class = "language-text" > < code > $ options json-format
LEVEL TYPE NAME VALUE SUMMARY DESCRIPTION
--------------------------------------------------------------------------------------------
2 bool json-format false Option to support This option enables to format object
ean JSON format of obj output with JSON when -x option selec
ect output ted.
< / code > < / pre > < div class = "line-numbers" aria-hidden = "true" > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < / div > < / div > < div class = "custom-container tip" > < p class = "custom-container-title" > 提示< / p > < p > 默认情况下< code > json-format< / code > 为 false， < code > watch< / code > /< code > tt< / code > 等命令结果以 json 格式输出，则可以设置< code > json-format< / code > 为 true。< / p > < / div > < h2 id = "设置指定的-option" tabindex = "-1" > < a class = "header-anchor" href = "#设置指定的-option" aria-hidden = "true" > #< / a > 设置指定的 option< / h2 > < p > 例如，想打开执行结果存日志功能，输入如下命令即可：< / p > < div class = "language-text ext-text line-numbers-mode" > < pre class = "language-text" > < code > $ options save-result true
NAME BEFORE-VALUE AFTER-VALUE
----------------------------------------
save-result false true
< / code > < / pre > < div class = "line-numbers" aria-hidden = "true" > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < / div > < / div > < h2 id = "打开-unsafe-开关-支持-jdk-package-下的类" tabindex = "-1" > < a class = "header-anchor" href = "#打开-unsafe-开关-支持-jdk-package-下的类" aria-hidden = "true" > #< / a > 打开 unsafe 开关，支持 jdk package 下的类< / h2 > < p > 默认情况下，< code > watch< / code > /< code > trace< / code > /< code > tt< / code > /< code > trace< / code > /< code > monitor< / code > 等命令不支持< code > java.*< / code > package 下的类。可以设置< code > unsafe< / code > 为 true， < / p > < div class = "language-bash ext-sh line-numbers-mode" > < pre class = "language-bash" > < code > $ options unsafe < span class = "token boolean" > true< / span >
NAME BEFORE-VALUE AFTER-VALUE
-----------------------------------
unsafe < span class = "token boolean" > false< / span > < span class = "token boolean" > true< / span >
< / code > < / pre > < div class = "line-numbers" aria-hidden = "true" > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < / div > < / div > < div class = "language-bash ext-sh line-numbers-mode" > < pre class = "language-bash" > < code > $ < span class = "token function" > watch< / span > java.lang.invoke.Invokers callSiteForm
Press Q or Ctrl+C to abort.
Affect< span class = "token punctuation" > (< / span > class count: < span class = "token number" > 1< / span > , method count: < span class = "token number" > 1< / span > < span class = "token punctuation" > )< / span > cost < span class = "token keyword" > in< / span > < span class = "token number" > 61< / span > ms, listenerId: < span class = "token number" > 1< / span >
< / code > < / pre > < div class = "line-numbers" aria-hidden = "true" > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < / div > < / div > < h2 id = "关闭-strict-模式-允许在-ognl-表达式里设置对象属性" tabindex = "-1" > < a class = "header-anchor" href = "#关闭-strict-模式-允许在-ognl-表达式里设置对象属性" aria-hidden = "true" > #< / a > 关闭 strict 模式，允许在 ognl 表达式里设置对象属性< / h2 > < div class = "custom-container tip" > < p class = "custom-container-title" > 提示< / p > < p > since 3.6.0< / p > < / div > < p > 对于新用户，在编写 ognl 表达式时，可能会出现误用。< / p > < p > 比如对于< code > Student< / code > ，判断年龄等于 18 时，可能条件表达式会误写为< code > target.age=18< / code > ，这个表达式实际上是把当前对象的< code > age< / code > 设置为 18 了。正确的写法是< code > target.age==18< / code > 。< / p > < p > 为了防止出现类似上面的误用， < code > strict< / code > 模式，在< code > ognl< / code > 表达式里，禁止更新对象的 Property 或者调用< code > setter< / code > 函数。< / p > < p > 以< code > MathGame< / code > 为例，会出现以下的错误提示。< / p > < div class = "language-text ext-text line-numbers-mode" > < pre class = "language-text" > < code > $ watch demo.MathGame primeFactors ' target' ' target.illegalArgumentCount=1'
Press Q or Ctrl+C to abort.
Affect(class count: 1 , method count: 1) cost in 206 ms, listenerId: 1
watch failed, condition is: target.illegalArgumentCount=1, express is: target, By default, strict mode is true, not allowed to set object properties. Want to set object properties, execute `options strict false`, visit /Users/admin/logs/arthas/arthas.log for more details.
< / code > < / pre > < div class = "line-numbers" aria-hidden = "true" > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < div class = "line-number" > < / div > < / div > < / div > < p > 用户如果确定要在< code > ognl< / code > 表达式里更新对象，可以执行< code > options strict false< / code > ，关闭< code > strict< / code > 模式。< / p > < ul > < li > 更多信息参考： https://github.com/alibaba/arthas/issues/2128< / li > < / ul > < / div > <!-- [ --> <!-- ] --> < / div > < footer class = "page-meta right-menu-padding" data-v-fdd717e0 > < div class = "meta-item edit-link" > < a class = "external-link meta-item-label" href = "https://github.com/alibaba/arthas/edit/master/site/docs/doc/options.md" rel = "noopener noreferrer" target = "_blank" aria-label = "在 GitHub 上编辑此页" > <!-- [ --> <!-- ] --> < span > 在 GitHub 上编辑此页< / span > < span > < svg class = "external-link-icon" xmlns = "http://www.w3.org/2000/svg" aria-hidden = "true" focusable = "false" x = "0px" y = "0px" viewbox = "0 0 100 100" width = "15" height = "15" > < path fill = "currentColor" d = "M18.8,85.1h56l0,0c2.2,0,4-1.8,4-4v-32h-8v28h-48v-48h28v-8h-32l0,0c-2.2,0-4,1.8-4,4v56C14.8,83.3,16.6,85.1,18.8,85.1z" > < / path > < polygon fill = "currentColor" points = "45.7,48.7 51.3,54.3 77.2,28.5 77.2,37.2 85.2,37.2 85.2,14.9 62.8,14.9 62.8,22.9 71.5,22.9" > < / polygon > < / svg > < span class = "external-link-icon-sr-only" > 在新窗口打开< / span > < / span > <!-- [ --> <!-- ] --> < / a > < / div > < div class = "meta-item last-updated" > < span class = "meta-item-label" > Last Updated: < / span > <!-- --> < / div > < div class = "meta-item contributors" > < span class = "meta-item-label" > 贡献者: < / span > < span class = "meta-item-info" > <!-- [ --> <!-- [ --> < span class = "contributor" title = "email: hengyunabc@gmail.com" > hengyunabc< / span > <!-- [ --> , <!-- ] --> <!-- ] --> <!-- [ --> < span class = "contributor" title = "email: i@fatpandac.com" > Fatpandac< / span > <!-- [ --> , <!-- ] --> <!-- ] --> <!-- [ --> < span class = "contributor" title = "email: hollowman186@vip.qq.com" > Hollow Man< / span > <!-- [ --> , <!-- ] --> <!-- ] --> <!-- [ --> < span class = "contributor" title = "email: zzilovey@gmail.com" > qianmoke< / span > <!-- --> <!-- ] --> <!-- ] --> < / span > < / div > < / footer > < nav class = "page-nav right-menu-padding" data-v-fdd717e0 > < p class = "inner" > < span class = "prev" > < a href = "/doc/ognl.html" class = "" aria-label = "ognl" > <!-- [ --> <!-- ] --> ognl <!-- [ --> <!-- ] --> < / a > < / span > < span class = "next" > < a href = "/doc/perfcounter.html" class = "" aria-label = "perfcounter" > <!-- [ --> <!-- ] --> perfcounter <!-- [ --> <!-- ] --> < / a > < / span > < / p > < / nav > <!-- [ --> <!-- ] --> < / main > <!-- ] --> < / div > <!-- --> <!-- ] --> < / div >
< script type = "module" src = "/assets/app.977e81c1.js" defer > < / script >
< / body >
< / html >
