关于重写URL

Question

msdn上的例子web.config里面的：
<RewriterRule>
   <LookFor>~/Products/Default\.aspx</LookFor>
   <SendTo>~/ListCategories.aspx</SendTo>
  </RewriterRule>
  <RewriterRule>
   <LookFor>~/Products/Beverages\.aspx</LookFor>
   <SendTo>~/ListProductsByCategory.aspx?CategoryID=1</SendTo>
  </RewriterRule>
  <RewriterRule>
   <LookFor>~/Products/Condiments\.aspx</LookFor>
   <SendTo>~/ListProductsByCategory.aspx?CategoryID=2</SendTo>
  </RewriterRule>
  <RewriterRule>
   <LookFor>~/Products/Confections\.aspx</LookFor>
   <SendTo>~/ListProductsByCategory.aspx?CategoryID=3</SendTo>
  </RewriterRule>
  <RewriterRule>
   <LookFor>~/Products/Dairy\.aspx</LookFor>
   <SendTo>~/ListProductsByCategory.aspx?CategoryID=4</SendTo>
  </RewriterRule>
  <RewriterRule>
   <LookFor>~/Products/GrainsCereals\.aspx</LookFor>
   <SendTo>~/ListProductsByCategory.aspx?CategoryID=5</SendTo>
  </RewriterRule>
  <RewriterRule>
   <LookFor>~/Products/MeatPoultry\.aspx</LookFor>
   <SendTo>~/ListProductsByCategory.aspx?CategoryID=6</SendTo>
  </RewriterRule>
  <RewriterRule>
   <LookFor>~/Products/Produce\.aspx</LookFor>
   <SendTo>~/ListProductsByCategory.aspx?CategoryID=7</SendTo>
  </RewriterRule>
  <RewriterRule>
   <LookFor>~/Products/Seafood\.aspx</LookFor>
   <SendTo>~/ListProductsByCategory.aspx?CategoryID=8</SendTo>
  </RewriterRule>
 </Rules>
  </RewriterConfig>
如果想把CategoryID改成所有的数字呢以便自己使用。请问下可以在这里改吗

Answer 1

你好 比如
<RewriterRule>
   <LookFor>~/Products/Category/(\d)\.aspx</LookFor>
   <SendTo>~/ListProductsByCategory.aspx?CategoryID=$1</SendTo>
  </RewriterRule>

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Wenn ich dich hab’,gibt es nichts, was unerträglich ist.坚持不懈！http://hi.baidu.com/1987raymond

Answer 2

<RewriterRule>
   <LookFor>~/Products/Category/(\d)\.aspx</LookFor>            \d是什么意思？能否解释下谢谢。。
   <SendTo>~/ListProductsByCategory.aspx?CategoryID=$1</SendTo>   下面的$号呢。。
  </RewriterRule>
还有为什么改成htm
<RewriterRule>
        <LookFor>~/Default\.aspx</LookFor>
        <SendTo>~/ListCategories.htm</SendTo>
      </RewriterRule>
就会出现

找不到网页
啊

Answer 3

你好\d代表数字  这里更合理的写法是下面的，因为数字可能不止一位
<RewriterRule>
   <LookFor>~/Products/Category/(\d+)\.aspx</LookFor>            
 <SendTo>~/ListProductsByCategory.aspx?CategoryID=$1</SendTo>    </RewriterRule>
这样就是把那里的数字捕获到组1中
然后~/ListProductsByCategory.aspx?CategoryID=$1中的$1是获取捕获组组1的值

如果改成htm那么就会跳转到htm那个也没，如果不存在这个也没 就会那样显示了
url重写的url可能并不存在，但是后边的SendTo要重写到的url必须是存在的

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Wenn ich dich hab’,gibt es nichts, was unerträglich ist.坚持不懈！http://hi.baidu.com/1987raymond

Answer 4

 <RewriterRule>
        <LookFor>~/(\d{4})/(\d{2})/(\d{2})\.aspx</LookFor>
        <SendTo>~/ShowBlogContent.aspx?year=$1&amp;month=$2&amp;day=$3</SendTo>
      </RewriterRule>

那这种呢？

d{2}有2个。。这里是怎么样的？看不明白

下面有3组

Answer 5

这里一样的道理哈\d{n}就是指匹配有n位数的数字
>~/(\d{4})/(\d{2})/(\d{2})\.aspx对于这里就是把(\d{4})捕获组设置为组1用$1获得值，一次类推
正则表达式参考 http://dotnet.cnblogs.com/page/47948

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Wenn ich dich hab’,gibt es nichts, was unerträglich ist.坚持不懈！http://hi.baidu.com/1987raymond

Answer 6

好的明白了谢谢