关于运行JRuby生成的.class文件 [英] About running .class files generated by JRuby

问题描述

拥有Ruby脚本，

print "HELLO"

如果您使用

jrubyc script.rb

您将获得一个.class文件.

You get a .class file.

如何在Java程序中执行此操作? (以便它向控制台输出"HELLO").我正在使用JRuby的完整JAR.

How do I execute this in my Java program? (so that it outputs "HELLO" to the console). I am using JRuby's complete JAR.

推荐答案

因此，您可能已设置嵌入式"(如果未结帐，例如

thus you've probably setup "embedded" (if not check-out answers such as this one) JRuby from Java e.g. (JSR 223 might be similar - just use ScriptEngine.eval to run Ruby code) :

ScriptingContainer scriptContainer = new ScriptingContainer(LocalContextScope.CONCURRENT);
scriptContainer.runScriptlet("load 'script.class'");

简单地load .class文件 script.class ，前提是它可以从class-path/work-dir解析(否则可能需要调整LOAD_PATH-确实取决于您的Java环境/场景)

simply load the .class file script.class assuming it can be resolved from the class-path / work-dir (otherwise might need to tune the LOAD_PATH - really depends on your Java environment/scenario)

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