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\u67E5\u770B\u6240\u6709\u7684 options

$ options
 LEVEL  TYPE    NAME          VALUE   SUMMARY               DESCRIPTION
-------------------------------------------------------------------------------------------------------
 0      boolea  unsafe        false   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.
 1      boolea  dump          false   Option to dump the e  This option enables the enhanced classes t
        n                             nhanced classes       o be dumped to external file for further d
                                                            e-compilation and analysis.
 1      boolea  batch-re-tra  true    Option to support ba  This options enables to reTransform classe
        n       nsform                tch reTransform Clas  s with batch mode.
                                      s
 2      boolea  json-format   false   Option to support JS  This option enables to format object outpu
        n                             ON format of object   t with JSON when -x option selected.
                                      output
 1      boolea  disable-sub-  false   Option to control in  This option disable to include sub class w
        n       class                 clude sub class when  hen matching class.
                                       class matching
 1      boolea  support-defa  true    Option to control in  This option disable to include default met
        n       ult-method            clude default method  hod in interface when matching class.
                                       in interface when c
                                      lass matching
 1      boolea  save-result   false   Option to print comm  This option enables to save each command's
        n                             and's result to log    result to log file, which path is \${user.
                                      file                  home}/logs/arthas-cache/result.log.
 2      String  job-timeout   1d      Option to job timeou  This option setting job timeout,The unit c
                                      t                     an be d, h, m, s for day, hour, minute, se
                                                            cond. 1d is one day in default
 1      boolea  print-parent  true    Option to print all   This option enables print files in parent
        n       -fields               fileds in parent cla  class, default value true.
                                      ss
 1      boolea  verbose       false   Option to print verb  This option enables print verbose informat
        n                             ose information       ion, default value false.
 1      boolea  strict        true    Option to strict mod  By default, strict mode is true, not allow
        n                             e                     ed to set object properties. Want to set o
                                                            bject properties, execute \`options strict
                                                            false\`

\u83B7\u53D6 option \u7684\u503C

$ 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.

\u63D0\u793A

\u9ED8\u8BA4\u60C5\u51B5\u4E0Bjson-format\u4E3A false\uFF0C\u5982\u679C\u5E0C\u671Bwatch/tt\u7B49\u547D\u4EE4\u7ED3\u679C\u4EE5 json \u683C\u5F0F\u8F93\u51FA\uFF0C\u5219\u53EF\u4EE5\u8BBE\u7F6Ejson-format\u4E3A true\u3002

\u8BBE\u7F6E\u6307\u5B9A\u7684 option

\u4F8B\u5982\uFF0C\u60F3\u6253\u5F00\u6267\u884C\u7ED3\u679C\u5B58\u65E5\u5FD7\u529F\u80FD\uFF0C\u8F93\u5165\u5982\u4E0B\u547D\u4EE4\u5373\u53EF\uFF1A

$ options save-result true
 NAME         BEFORE-VALUE  AFTER-VALUE
----------------------------------------
 save-result  false         true

\u6253\u5F00 unsafe \u5F00\u5173\uFF0C\u652F\u6301 jdk package \u4E0B\u7684\u7C7B

\u9ED8\u8BA4\u60C5\u51B5\u4E0B\uFF0Cwatch/trace/tt/trace/monitor\u7B49\u547D\u4EE4\u4E0D\u652F\u6301java.* package \u4E0B\u7684\u7C7B\u3002\u53EF\u4EE5\u8BBE\u7F6Eunsafe\u4E3A true\uFF0C\u5219\u53EF\u4EE5\u589E\u5F3A\u3002

$ options unsafe true
 NAME    BEFORE-VALUE  AFTER-VALUE
-----------------------------------
 unsafe  false         true

$ watch java.lang.invoke.Invokers callSiteForm
Press Q or Ctrl+C to abort.
Affect(class count: 1 , method count: 1) cost in 61 ms, listenerId: 1

\u5173\u95ED strict \u6A21\u5F0F\uFF0C\u5141\u8BB8\u5728 ognl \u8868\u8FBE\u5F0F\u91CC\u8BBE\u7F6E\u5BF9\u8C61\u5C5E\u6027

\u63D0\u793A

since 3.6.0

\u5BF9\u4E8E\u65B0\u7528\u6237\uFF0C\u5728\u7F16\u5199 ognl \u8868\u8FBE\u5F0F\u65F6\uFF0C\u53EF\u80FD\u4F1A\u51FA\u73B0\u8BEF\u7528\u3002

\u6BD4\u5982\u5BF9\u4E8EStudent\uFF0C\u5224\u65AD\u5E74\u9F84\u7B49\u4E8E 18 \u65F6\uFF0C\u53EF\u80FD\u6761\u4EF6\u8868\u8FBE\u5F0F\u4F1A\u8BEF\u5199\u4E3Atarget.age=18\uFF0C\u8FD9\u4E2A\u8868\u8FBE\u5F0F\u5B9E\u9645\u4E0A\u662F\u628A\u5F53\u524D\u5BF9\u8C61\u7684age\u8BBE\u7F6E\u4E3A 18 \u4E86\u3002\u6B63\u786E\u7684\u5199\u6CD5\u662Ftarget.age==18\u3002

\u4E3A\u4E86\u9632\u6B62\u51FA\u73B0\u7C7B\u4F3C\u4E0A\u9762\u7684\u8BEF\u7528\uFF0CArthas \u9ED8\u8BA4\u542F\u7528strict\u6A21\u5F0F\uFF0C\u5728ognl\u8868\u8FBE\u5F0F\u91CC\uFF0C\u7981\u6B62\u66F4\u65B0\u5BF9\u8C61\u7684 Property \u6216\u8005\u8C03\u7528setter\u51FD\u6570\u3002

\u4EE5MathGame\u4E3A\u4F8B\uFF0C\u4F1A\u51FA\u73B0\u4EE5\u4E0B\u7684\u9519\u8BEF\u63D0\u793A\u3002

$ 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.

\u7528\u6237\u5982\u679C\u786E\u5B9A\u8981\u5728ognl\u8868\u8FBE\u5F0F\u91CC\u66F4\u65B0\u5BF9\u8C61\uFF0C\u53EF\u4EE5\u6267\u884Coptions strict false\uFF0C\u5173\u95EDstrict\u6A21\u5F0F\u3002

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