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JVM配置参数

-XX
标准选择(Standard Options)
These are the most commonly used options that are supported by all implementations of the JVM.

示例:

-XX:+UseConcmarkSweepGC
-XX:+CMSParallelRemarkEnable
-XX:+UseFastAccessorMethods


-X
非标准选择(Non-Standard Options)
These options are general purpose options that are specific to the Java HotSpot Virtual Machine.

示例:

-Xmx256m
-xms256m
-Xmn768m
-Xss256k

 

-D
设置系统属性值(Sets a system property value)
-D属性名称=属性
Sets a system property value. The property variable is a string with no spaces that represents the name of the property.
The value variable is a string that represents the value of the property. If value is a string with spaces, then enclose it in quotation marks (for example -Dfoo="foo bar").

示例:

-Dspring.profiles.active=release
-Dspring.config.location=/opt/app/conf/

* 如果属性值中间有空格,需要用双引号括住,例如-Dclotho="clotho property value"

 

在IDEA中通过Run/Debug configurations中的VM.options配置

* 如果认没显示,可点击Build and run右边的Modify options -> Java -> Add VM options

 

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