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40 lines
2.7 KiB
Plaintext
40 lines
2.7 KiB
Plaintext
6 years ago
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dump
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===
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> dump 已加载类的 bytecode 到特定目录
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### 参数说明
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|参数名称|参数说明|
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|---:|:---|
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|*class-pattern*|类名表达式匹配|
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|`[c:]`|类所属 ClassLoader 的 hashcode|
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|[E]|开启正则表达式匹配，默认为通配符匹配|
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### 使用参考
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```shell
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$ dump -E org\.apache\.commons\.lang\.StringUtils
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HASHCODE CLASSLOADER LOCATION
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29505d69 +-tddl-client's ModuleClassLoader /Users/zhuyong/middleware/taobao-tomcat/output/build/bin/classdump/com.taobao.pandora
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.service.loader.ModuleClassLoader-29505d69/org.apache.commons.lang.StringUtils.class
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6e51ad67 +-java.net.URLClassLoader@6e51ad67 /Users/zhuyong/middleware/taobao-tomcat/output/build/bin/classdump/java.net.URLClassL
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+-sun.misc.Launcher$AppClassLoader@6951a712 oader-6e51ad67/org.apache.commons.lang.StringUtils.class
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+-sun.misc.Launcher$ExtClassLoader@6fafc4c2
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2bdd9114 +-pandora-qos-service's ModuleClassLoader /Users/zhuyong/middleware/taobao-tomcat/output/build/bin/classdump/com.taobao.pandora
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.service.loader.ModuleClassLoader-2bdd9114/org.apache.commons.lang.StringUtils.class
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544dc9ba +-com.taobao.tomcat.container.context.loader.AliWebappClassLoader /Users/zhuyong/middleware/taobao-tomcat/output/build/bin/classdump/com.taobao.tomcat.
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+-org.apache.catalina.loader.StandardClassLoader@2302e984 container.context.loader.AliWebappClassLoader-544dc9ba/org.apache.commons.lang.String
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+-sun.misc.Launcher$AppClassLoader@6951a712 Utils.class
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+-sun.misc.Launcher$ExtClassLoader@6fafc4c2
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22880c2b +-java.net.URLClassLoader@22880c2b /Users/zhuyong/middleware/taobao-tomcat/output/build/bin/classdump/java.net.URLClassL
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+-sun.misc.Launcher$AppClassLoader@6951a712 oader-22880c2b/org.apache.commons.lang.StringUtils.class
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+-sun.misc.Launcher$ExtClassLoader@6fafc4c2
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Affect(row-cnt:5) cost in 156 ms.
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$ dump -E org\.apache\.commons\.lang\.StringUtils -c 22880c2b
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HASHCODE CLASSLOADER LOCATION
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22880c2b +-java.net.URLClassLoader@22880c2b /Users/zhuyong/middleware/taobao-tomcat/output/build/bin/classdump/java.net.URLClassLoader-22880c2b/org
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+-sun.misc.Launcher$AppClassLoader@6951a712 .apache.commons.lang.StringUtils.class
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+-sun.misc.Launcher$ExtClassLoader@6fafc4c2
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Affect(row-cnt:1) cost in 67 ms.
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```
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