前言
public class Main {
public static String generateWord(String type) {
switch (type) {
case "宝,我今天输液了; 输的什么液?":return "想你的夜";
case "宝，我今天喝酒了; 喝的什么酒":return "和你的天长地久";
case "宝，我今天种地了; 种的什么地":return "对你的死心塌地";
default:return "";
}
}
}
SM 命令学习
[arthas@91969]$ help sm
USAGE:
sm [-c <value>] [--classLoaderClass <value>] [-d] [-h] [-n <value>] [-E] class-pattern [method-pattern]
SUMMARY:
Search the method of classes loaded by JVM
EXAMPLES:
sm java.lang.String
sm -d org.apache.commons.lang.StringUtils
sm -d org/apache/commons/lang/StringUtils
sm *StringUtils *
sm -Ed org\\.apache\\.commons\\.lang\.StringUtils .*
WIKI:
https://arthas.aliyun.com/doc/sm
OPTIONS:
-c, --classloader <value> The hash code of the special class's classLoader
--classLoaderClass <value> The class name of the special class's classLoader.
-d, --details Display the details of method
-h, --help this help
-n, --limits <value> Maximum number of matching classes (100 by default)
-E, --regex Enable regular expression to match (wildcard matching by default)
<class-pattern> Class name pattern, use either '.' or '/' as separator
<method-pattern> Method name pattern
sm [-c <value>] [--classLoaderClass <value>] [-d] [-h] [-n <value>] [-E] class-pattern [method-pattern]
使用:
sm -d com.codog.demo.Main generateWord
[arthas@91969]$ sm -d com.codog.demo.Main generateWord
declaring-class com.codog.demo.Main
method-name generateWord
modifier public,static
annotation
parameters java.lang.String
return java.lang.String
exceptions
classLoaderHash 3d4eac69
Affect(row-cnt:1) cost in 24 ms.
jad com.codog.demo.Main generateWord
[arthas@91969]$ jad com.codog.demo.Main generateWord
ClassLoader:
+-jdk.internal.loader.ClassLoaders$AppClassLoader@3d4eac69
+-jdk.internal.loader.ClassLoaders$PlatformClassLoader@761bf405
Location:
/Users/bytedance/IdeaProjects/demotemp/target/classes/
public static String generateWord(String type) {
/*10*/ switch (type) {
case "宝,我今天输液了; 输的什么液?": {
/*11*/ return "想你的夜";
}
case "宝，我今天喝酒了; 喝的什么酒": {
/*12*/ return "和你的天长地久";
}
case "宝，我今天种地了; 种的什么地": {
/*13*/ return "对你的死心塌地";
}
}
/*14*/ return "";
}
Affect(row-cnt:1) cost in 393 ms.
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