@PathVariable出现点号"."时导致路径参数截断获取不全的解决办法
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@PathVariable出现点号"."时导致路径参数截断获取不全的解决办法
问题实例:
@RequestMapping( value = "/file" )
参数声明:@RequestMapping(value = "{filename}", method = RequestMethod.GET)
传入参数:/file/some_file.32HIK345KHJKH.jpg
获取参数:/file/some_file.32HIK345KHJKH
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参考链接:
http://stackoverflow.com/questions/3526523/spring-mvc-pathvariable-getting-truncated
http://stackoverflow.com/questions/7027366/spring-3-0-multiple-pathvariables-problem
http://forum.springsource.org/showthread.php?78085-Problems-with-RequestMapping&p=263563#post263563
http://forum.springsource.org/showthread.php?84738-UrlRewrite-PathVariable-multiple-dots-in-filename
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Thread: UrlRewrite, @PathVariable multiple dots in filename
参考:http://forum.springsource.org/showthread.php?84738-UrlRewrite-PathVariable-multiple-dots-in-filename
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UrlRewrite, @PathVariable multiple dots in filename
I have a "/file" - controller in a Spring REST web application which provides file streams. So a common scenario for a call is:/file/some_file.32HIK345KHJKH.jpg
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I use the urlrewrite.xml from the Spring 3 REST example. For the file controller I added a special rule, with regex instead ofwildcards, like follows:
Code:
...
<rule match-type="regex">
? <from>^/file/([^/]*)$</from>
? <to>/app/file/$1</to>
</rule>
...
The controller handler code for the GET method looks like the following:
Code:
@RequestMapping(value = "{filename}", method = RequestMethod.GET)
public void provideFile(@PathVariable String filename,OutputStream outputStream) throws IOException {
...
// here I do sth. with the filename
...
}
Problem is that the original filename is truncated before last dot. This happens somewhere in between the URL call and the controller handler. So filename only contains: some_file.32HIK345KHJKH instead of some_file.32HIK345KHJKH.jpg
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So my question is, what I'm doing wrong and why is the filename truncated at before last dot.
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Cheers
Maik
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Feb 15th, 2010, 12:14 PM#2
dvestal?
Junior Member
Join Date
Jun 2008
Location
Springfield, MO
Posts
21
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The @PathVariable resolution will end at the period when using a String variable. You can specify a regex in your @PathVariable declaration though to be able to match your file patterns. I'd have to look at it more closely to determine the actual regex needed, but it shouldn't be difficult.
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@PathVariable("{filename:[a-zA-Z0-9\.]+}") String filename
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Feb 15th, 2010, 04:52 PM#3
Mammut?
Junior Member
Join Date
Feb 2010
Posts
2
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@dvestal
Thank you dvestal. You pointed me in the right direction. I did further investigations and found this thread here in den forum:http://forum.springsource.org/showth...563#post263563
So the trick with the regualar expression override did the job.
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Cheers
Maik
