IIS URL Rewrite 2.0,url重写，伪静态

wangyan188

　　IIS URL Rewrite 2.0出来好像不短时间了，由于也没什么特别需求，也就没对他有研究兴趣。
　　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。
　　
Support for custom .NET rewrite providers 　　这玩意支持让你方便修改存储位置。