Lift webapp具有相同名称的目录和资源，但给出302 [英] Lift webapp has directory and resource with the same name, but gives 302
问题描述
我将example.war部署到Tomcat 6.0.32(在撰写本文时为最新)，并且已部署的Webapp包含以下内容:
$ find example | egrep -v "WEB-INF/lib|WEB-INF/classes"
example
example/_items.html
example/_share_link.html
example/all_items.html
example/images
example/images/ajax-loader.gif
example/index.html
example/item
example/item/star.html
example/item.html
example/js
example/js/c-jquery-1.4.2.js
example/js/c-jquery-ui-1.8.2.js
example/js/jquery-1.4.2.js
example/js/jquery-1.4.4.min.js
example/js/jquery-ui-1.8.2.js
example/js/jquery-ui-1.8.8.custom.min.js
example/js/jquery.blockUI.js
example/META-INF
example/META-INF/MANIFEST.MF
example/search.html
example/static
example/static/index.html
example/templates-hidden
example/templates-hidden/default.html
example/templates-hidden/wizard-all.html
example/WEB-INF
example/WEB-INF/web.xml
特别注意:
example/item
example/item/star.html
example/item.html
我尝试请求上述资源:
$ telnet localhost 8080
Trying ::1...
Connected to localhost.
Escape character is '^]'.
GET /example/item HTTP/1.0
HTTP/1.1 302 Moved Temporarily
Server: Apache-Coyote/1.1
Location: http://localhost:8080/example/item/
Date: Thu, 07 Apr 2011 08:24:39 GMT
Connection: close
Connection closed by foreign host.
服务器告诉我尝试/example/item/
$ telnet localhost 8080
Trying ::1...
Connected to localhost.
Escape character is '^]'.
GET /example/item/ HTTP/1.0
HTTP/1.1 404 Not Found
Server: Apache-Coyote/1.1
Set-Cookie: JSESSIONID=6D97AD3A8F77697146163946B1BBBB64; Path=/example
Expires: Thu, 7 Apr 2011 08:24:58 UTC
Cache-Control: no-cache, private, no-store
Pragma: no-cache
Date: Thu, 07 Apr 2011 08:24:58 GMT
X-Lift-Version: 2.3
Content-Type: text/html;charset=utf-8
Content-Length: 106
Connection: close
<!DOCTYPE html>
<html> <body>The Requested URL /example/item/ was not found on this server</body> </html>
Connection closed by foreign host.
这不是我期望的.对/example/item的第一个请求(不带斜杠)应该可以工作-此时，Lift Web框架使用star.html作为模板来接管并呈现我的项目.这在Jetty 6.1.22和Resin 4.0.16上确实很好用，但在Tomcat上却不行.
我缺少一些特殊的配置吗? servlet规范中是否有某些东西可以表示这种情况下的正确行为?
我使用的示例代码可以在这里找到: https://github.com/dpp/simply_lift/tree/master/samples/shopwithme
我在这里提出了原始问题: https://groups.google.com/forum/?fromgroups#!topic /liftweb/7QlFud1ieOU
注意:这个问题不是关于Lift或其渲染管道，而是关于Tomcat，以及为什么它的行为不同于Jetty和Resin的行为.
更新:这是经典的尾随斜线"问题，并且此处已提交错误报告:解决方案
有人回答了这个问题，但问题的措词却大不相同，这就是为什么我要按原样保留自己的问题(对于那些使用不同的搜索字词):
简而言之，请参阅此类:
很遗憾，这样做会阻止您
使用Tomcat，但是没有什么
我将在这里更改. I deployed Particularly note: I try and request the above resource: The server told me to try This is not what I expect. The first request to Is there some special configuration I'm missing? Is there something in the servlet specification which denotes the correct behaviour in this case? The example code I used can be found here:
https://github.com/dpp/simply_lift/tree/master/samples/shopwithme I raised the original issue here:
https://groups.google.com/forum/?fromgroups#!topic/liftweb/7QlFud1ieOU Note This question is not about Lift or its rendering pipeline -- it's about Tomcat, and why its behaviour differs from Jetty and Resin's. UPDATE: This is the classic "trailing slash" issue, and a bug report has been filed here: https://issues.apache.org/bugzilla/show_bug.cgi?id=32424 Someone answered this, but the question was phrased quite differently, which is why I'm going to leave my own question as-is (for those users who use different search terms): Where does Tomcat append / to directory paths? In a nutshell, see this class: ...and then find a comment detailing 'default servlet' in that class -- it's called "Rule 7", which according to many, is a bug: https://issues.apache.org/bugzilla/show_bug.cgi?id=32424 It will stay unfixed in Tomcat for the foreseeable, according to a comment by one of the developers: The behavior is not specified
anywhere, but the idea is that in the
case of a physical folder or the root
of a context, the trailing '/' is not
relevant. Since this causes recurrent
path resolution issues (which made
servlets like our default servlet
needlessly more complex), we always
present the servlet with a training
'/' in all cases. It is also the most
efficient, so that's the the
implementation which is currently
used. I regret it would prevent you from
using Tomcat, but there's nothing that
I will change here.
这篇关于Lift webapp具有相同名称的目录和资源，但给出302的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！example.war to Tomcat 6.0.32 (latest at time of writing), and the deployed webapp contains the following:$ find example | egrep -v "WEB-INF/lib|WEB-INF/classes"
example
example/_items.html
example/_share_link.html
example/all_items.html
example/images
example/images/ajax-loader.gif
example/index.html
example/item
example/item/star.html
example/item.html
example/js
example/js/c-jquery-1.4.2.js
example/js/c-jquery-ui-1.8.2.js
example/js/jquery-1.4.2.js
example/js/jquery-1.4.4.min.js
example/js/jquery-ui-1.8.2.js
example/js/jquery-ui-1.8.8.custom.min.js
example/js/jquery.blockUI.js
example/META-INF
example/META-INF/MANIFEST.MF
example/search.html
example/static
example/static/index.html
example/templates-hidden
example/templates-hidden/default.html
example/templates-hidden/wizard-all.html
example/WEB-INF
example/WEB-INF/web.xml
example/item
example/item/star.html
example/item.html
$ telnet localhost 8080
Trying ::1...
Connected to localhost.
Escape character is '^]'.
GET /example/item HTTP/1.0
HTTP/1.1 302 Moved Temporarily
Server: Apache-Coyote/1.1
Location: http://localhost:8080/example/item/
Date: Thu, 07 Apr 2011 08:24:39 GMT
Connection: close
Connection closed by foreign host.
/example/item/$ telnet localhost 8080
Trying ::1...
Connected to localhost.
Escape character is '^]'.
GET /example/item/ HTTP/1.0
HTTP/1.1 404 Not Found
Server: Apache-Coyote/1.1
Set-Cookie: JSESSIONID=6D97AD3A8F77697146163946B1BBBB64; Path=/example
Expires: Thu, 7 Apr 2011 08:24:58 UTC
Cache-Control: no-cache, private, no-store
Pragma: no-cache
Date: Thu, 07 Apr 2011 08:24:58 GMT
X-Lift-Version: 2.3
Content-Type: text/html;charset=utf-8
Content-Length: 106
Connection: close
<!DOCTYPE html>
<html> <body>The Requested URL /example/item/ was not found on this server</body> </html>
Connection closed by foreign host.
/example/item (without the trailing slash) should work -- at this point the Lift web framework takes over and renders my items, using star.html as a template. This works really well with Jetty 6.1.22 and Resin 4.0.16, but not Tomcat.
