试图通过一个groovy shell脚本发送邮件 [英] Trying to send an email trough a groovy shell script
问题描述
今天我试图用groovy脚本替换一个bash脚本。一切顺利，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
'mail -s "this is a test" my.mail@example.com < mail.tmp'.execute()
不工作，因为groovy会分割一个参数这是一个测试到四个参数这个 是 code> a test。
does not work since groovy will split up the one argument "this is a test" into four arguments "this is a test".
到目前为止这么好。 Google帮助我把它变成了
So far so good. Google helped me to turn this into
['mail', '-s', "this is a test", 'my.mail@example.com', '<', 'mail.tmp'].execute()
现在主题被识别为一个参数，但< 也被认为是参数，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.
任何想法如何解决这个问题？
Any idea how I could solve this?
PS：不，我不想使用java代码发送邮件，因为我猜这个代码将会更复杂。但是如果你有一个java一线，你是欢迎...
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
你必须处理写输出从进程到文件...
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() }
我只用ls -al作为命令进行测试，并且按预期工作，我不知道如果一个更长的运行过程需要你调整你的方式 - 如果是这样，您可能需要使用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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