尝试通过Groovy Shell脚本发送电子邮件 [英] Trying to send an email through a groovy shell script
问题描述
今天，我试图用普通的脚本替换bash脚本。一切运行顺利，我设法使用 execute（）命令调用其他命令。
today I was trying to replace a bash script with a groovy script. Everything runs smooth and I managed to use the execute() command to invoke other command.
然后我在尝试发送带有主题的电子邮件：
Then I was trying to send an email with a subject:
mail -s "this is a test" my.mail@example.com < mail.tmp
变成了
'mail -s "this is a test" my.mail@example.com < mail.tmp'.execute()
不起作用，因为groovy将拆分一个参数这是一个测试 分为四个参数这 是 a test 。
does not work since groovy will split up the one argument "this is a test" into four arguments "this is a test".
到目前为止很好。 Google帮我把它变成了
So far so good. Google helped me to turn this into
['mail', '-s', "this is a test", 'my.mail@example.com', '<', 'mail.tmp'].execute()
现在该主题被识别为一个参数，但是< 也被识别为参数，而不是文件重定向。
Now the subject is recognized as one parameter, but the < is also recognized as parameter and not as the file redirection.
任何想法我该如何解决？
Any idea how I could solve this?
PS：不，我不希望使用Java代码发送邮件，因为我想代码会更复杂。但是，如果您有Java的单行代码，那么欢迎您...
PS: no, I would not like to use java code for sending mail since I guess the code will be more complex. But if you have a java one-liner, you are welcome...
推荐答案
您将不得不处理输出内容从过程到文件...
You'll have to handle writing the output from the process to a file ...
new File('mail.tmp').withWriter { it << """mail -s "this is a test" my.mail@example.com""".execute().getText() }
我仅在上面使用 ls -al作为命令进行了测试，并且它按预期工作，我不确定较长的运行过程是否需要您调整操作方式-如果是这样，则可能需要使用waitForProcessOutput：
I only tested above with "ls -al" as the command and it worked as expected, I'm not sure if a longer running process would require you to tweak the way you go about it-- if so you might need to use waitForProcessOutput:
new File('mail.tmp').withWriter { """mail -s "this is a test" my.mail@example.com""".execute().waitForProcessOutput(it, it) }
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