java JRE里面JVM的路径是什么？
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What is the path of the JVM inside the JRE?
提问by Anoop Butola
I am just learning Java and I wanted to know that everywhere its written that JVM present inside JRE. I just wanted to know the complete path where exactly JVM is present inside JRE.
我只是在学习 Java，我想知道 JRE 中到处都写着 JVM。我只是想知道 JRE 中确切存在 JVM 的完整路径。
回答by TheLostMind
In Windows : inside your JRE, you will have a folder like this : C:\Program Files (x86)\Java\jre7\bin\client--> this directory contains the client JVM jvm.dll.
在 Windows 中：在您的 JRE 中，您将有一个这样的文件夹：C:\Program Files (x86)\Java\jre7\bin\client--> 该目录包含客户端 JVM jvm.dll。
Under :linux you will find it in /jreInstallation/lib/yourSystemArchtecture(amd64 in my case)/(server/client)/libjvm.so
在 :linux 下你会发现它 /jreInstallation/lib/yourSystemArchtecture(amd64 in my case)/(server/client)/libjvm.so
A VM is nothing but a shared library like dllor sofile. Your java exe or other executable file calls the jvm.
虚拟机只不过是一个共享库，如dll或so文件。您的 java exe 或其他可执行文件调用 jvm。
Note : You can call your JVM using any language / executable file/ You could write a shell scriptor a cobol program to execute the JVM
注意：您可以使用任何语言/可执行文件调用您的 JVM/您可以编写shell 脚本或 cobol 程序来执行 JVM
回答by xorcus
If you intend to use the Invocation APIin a native application and access Java APIs installed as part of OpenJDK (Java 10, Java 11, etc.) in ${JAVA_HOME}directory, link against (or dynamically load) jvm.dllfound in ${JAVA_HOME}/bin/server/jvm.dll.
如果您打算在本机应用程序中使用Invocation API并访问作为 OpenJDK 的一部分安装的 Java API（Java 10、Java 11 等）${JAVA_HOME}，请链接（或动态加载）jvm.dll在${JAVA_HOME}/bin/server/jvm.dll.
Oracle installers (currently up to Java 8) add a Windows Registry key pointing to jvm.dll. For example, when JRE 8 is installed, the following key is added:
Oracle 安装程序（目前最高为 Java 8）添加了一个指向jvm.dll. 例如，在安装 JRE 8 时，添加以下键：
HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Runtime Environment\1.8
HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Runtime Environment\1.8
and it contains a string value RuntimeLibset to absolute path to jvm.dll. Also, information that 1.8is the CurrentVersioncan be found in key:
并且它包含一个RuntimeLib设置为绝对路径的字符串值jvm.dll。此外，这些信息1.8是CurrentVersion可以在关键发现：
HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Runtime Environment
HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\Java Runtime Environment
As of Java 9, Oracle abbreviatedJava Runtime Environmentto JRE, so the keys are:
HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\JRE
HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\JRE\9
从 Java 9 开始，Oracle缩写Java Runtime Environment为JRE，因此键为：
HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\JRE
HKEY_LOCAL_MACHINE\SOFTWARE\JavaSoft\JRE\9
This is all documented Windows Registry Settings section of the installation guide.
这是安装指南的所有记录的Windows 注册表设置部分。
回答by Sumit Singh
For Debian and Ubuntu, it is under
对于 Debian 和 Ubuntu，它位于
/usr/lib/jvm/
For windows where javaworks for me to list all java exe but java -verbosetells you which rt.jar is used and thus which jre (full path):
对于 Windows where java，我可以列出所有 java exe，但会java -verbose告诉您使用了哪个 rt.jar 以及哪个 jre（完整路径）：
回答by Ted
Windows 10, mine: C:\Users\elb>where java
Windows 10，我的：C:\Users\elb>where java
C:\ProgramData\Oracle\Java\javapath\java.exe
c:\Program Files\Java\jdk1.7.0_07\bin\java.exe
