Eclipse 中的 I/O 重定向？
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I/O redirection in Eclipse?
提问by Simonw
Is it possible to use I/O redirection in Eclipse?
是否可以在 Eclipse 中使用 I/O 重定向？
I want to redirect standard input/output on the command line like java MyProgram <input.txt >output.txt, but I can't seem to get it to work in Eclipse. I tried including the <'s as part of the program arguments, which was ignored, and also in the VM arguments, which just threw up a class not found error. How can I do this?
我想在命令行上重定向标准输入/输出，如java MyProgram <input.txt >output.txt，但我似乎无法让它在 Eclipse 中工作。我尝试将 < 作为程序参数的一部分，这被忽略了，还有在 VM 参数中，它只是抛出了一个未找到类的错误。我怎样才能做到这一点？
采纳答案by VonC
To truly redirect both, the simplest way is still to define your program as an external script
要真正重定向两者，最简单的方法仍然是将您的程序定义为外部脚本
"java %1 %2 %3 %4 < %5 > %6"
(adapt the number of parameters to your particular program)
（根据您的特定程序调整参数数量）
In the Run menu, click 'External Tools.../Open External Tools Dialog" and define an external launch configuration in which you will specify both the arguments and the input and output file.
在“运行”菜单中，单击“外部工具.../打开外部工具对话框”并定义一个外部启动配置，您将在其中指定参数以及输入和输出文件。
It is not an ideal solution though, as you cannot debug directlyyour code (with a "debug" launcher configuration).
Instead you have to remote debug it (add '-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8000' in your generic Java launcher script)
但是，这不是理想的解决方案，因为您无法直接调试代码（使用“调试”启动器配置）。
相反，您必须远程调试它（-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=n,address=8000在您的通用 Java 启动程序脚本中添加 ' '）
Once you have launched your external tool, launch a remote debug session through the "debug launcher 'Remote Java Application'" section:
启动外部工具后，通过“调试启动器‘远程 Java 应用程序’”部分启动远程调试会话：
回答by Jon Skeet
You can redirect outputusing the Run dialog, Common tab, "Standard Input and Output" section.
您可以使用“运行”对话框、“通用”选项卡、“标准输入和输出”部分来重定向输出。
However, it doesn't look like you can redirect inputas far as I can tell (and as far as this Stack Overflow questioncan tell, too).
但是，据我所知，您似乎无法重定向输入（并且就这个 Stack Overflow 问题而言）。
How much control do you have over your application? If you don't mind a bit of a hack, you could have a couple of properties or command line arguments to determine the appropriate files, and use System.setOutand System.setInaccordingly. It isa bit of a hack though...
您对您的应用程序有多少控制权？如果你不介意一个黑客位的，你可以有几个属性或命令行参数来确定相应的文件，并使用System.setOut与System.setIn相应。这是一个黑客位的，虽然...
