我如何使用JAVA_OPTS环境变量？

How do I use the JAVA_OPTS variable to configure a web server (a linux server)?

如何使用JAVA_OPTS变量配置Web服务器（Linux服务器）？

How can I set -Djava.awt.headless=true using JAVA_OPTS?

如何使用JAVA_OPTS设置-Djava.awt.headless = true？

5 个解决方案

#1

JAVA_OPTS is the standard environment variable that some servers and other java apps append to the call that executes the java command.

JAVA_OPTS是标准环境变量，某些服务器和其他Java应用程序附加到执行java命令的调用。

For example in tomcat if you define JAVA_OPTS='-Xmx1024m', the startup script will execute java org.apache.tomcat.Servert -Xmx1024m

例如在tomcat中如果定义JAVA_OPTS =' - Xmx1024m'，则启动脚本将执行java org.apache.tomcat.Servert -Xmx1024m

If you are running in Linux/OSX, you can set the JAVA_OPTS, right before you call the startup script by doing

如果您在Linux / OSX中运行，则可以在调用启动脚本之前设置JAVA_OPTS

JAVA_OPTS='-Djava.awt.headless=true'

This will only last as long as the console is open. To make it more permanent you can add it to your ~/.profile or ~/.bashrc file.

只有控制台打开时，这才会持续。为了使它更永久，你可以将它添加到〜/ .profile或〜/ .bashrc文件中。

#2

JAVA_OPTS is environment variable used by tomcat in its startup/shutdown script to configure params.

JAVA_OPTS是tomcat在其启动/关闭脚本中用于配置params的环境变量。

You can set it in linux by

你可以在linux中设置它

export JAVA_OPTS="-Djava.awt.headless=true"

#3

Just figured it out in Oracle Java the environmental variable is called: JAVA_TOOL_OPTIONS rather than JAVA_OPTS

刚刚在Oracle Java中找到了环境变量：JAVA_TOOL_OPTIONS而不是JAVA_OPTS

#4

Actually, you can, even though accepted answer saying that you can't.

实际上，你可以，即使接受了答案说你做不到。

There is a _JAVA_OPTIONS environment variable, more about it here

有一个_JAVA_OPTIONS环境变量，这里有更多关于它的信息

#5

JAVA_OPTS is not restricted to Tomcat’s Java process, but passed to all JVM processes running on the same machine.

JAVA_OPTS不限于Tomcat的Java进程，而是传递给在同一台机器上运行的所有JVM进程。

Use CATALINA_OPTS if you specifically want to pass JVM arguments to Tomcat's servlet engine.

如果您特别想将JVM参数传递给Tomcat的servlet引擎，请使用CATALINA_OPTS。

#1