IIS URL Rewrite 2.0,url重写，伪静态

最近维护另外一个小组开放的程序，发现其使用的就是IIS URL Rewrite 2.0了，而起rewrite规则都写在webconfig中，这就不由得我不管这事了。

曾经为了避免频繁修改webconfig而导致的站点重启，重写了MS提供的IIS URL Rewrite 1.1，讲规则存储在单独的数据文件中，再用个文件缓存依赖来实现实时修改。

而如今2.0的配置还写在webconfig里头，难道又想让我重新2.0的东东。

找到了2.0的相关资料，也找到了其源代码，发现其是支持扩展的，支持规则存于其他数据文件的。

http://www.iis.net/download/URLRewrite  详细信息参考官方文档了。

这里列下2.0的特点：

Features

• Rules-based URL rewriting engine
• Rules-based response rewriting engine
• Support for custom .NET rewrite providers
• Regular expression pattern matching
• Wildcard pattern matching
• Global and distributed rewrite rules
• Rewriting within the content of specific HTML tags
• Pre-conditions for outbound rules
• Access to server variables and HTTP headers
• Rewriting of server variables and HTTP request headers
• Rewriting of HTTP response headers
• Allow list for server variables
• HtmlEncode function
• Built-in rule templates
• Reverse proxy rule template
• Rule templates for Search Engine Optimization
• Various rule actions including redirect and request abort
• Tracking capture groups across rule conditions
• Logging of rewritten URLs
• Updated user interface in IIS Manager
• Integrated user interface for managing rewrite rules and rewrite maps
• Integrated user interface for importing of Apache mod_rewrite rules
• Integrated user interface for testing regular expression and wildcard patterns
• Support for IIS kernel-mode and user-mode output caching
• Lowercase conversion function
• Rewrite maps to generate the substitution URL during rewriting
• Failed Request Tracing support

好处多多，可以了解下，有些方面估计还用得到。