步骤：1、你的域名 http://www.abc.com/ 是泛解析的，并在IIS里添加了主机头为空的映射； 2、修改微软的URLRewriter,要改两个地方 （1）.BaseModuleRewriter.cs protected virtual void BaseModuleRewriter_AuthorizeRequest(object sender, EventArgs e) { HttpApplication app = (HttpApplication) sender; Rewrite(app.Request.Url.AbsoluteUri, app); } 就是将 app.Request.Path 替换成了 app.Request.Url.AbsoluteUri （2）.ModuleRewriter.cs for(int i = 0; i < rules.Count; i++) { // get the pattern to look for, and Resolve the Url (convert ~ into the appropriate directory) string lookFor = "^" + rules[i].LookFor + "$"; // Create a regex (note that IgnoreCase is set) Regex re = new Regex(lookFor, RegexOptions.IgnoreCase); // See if a match is found if (re.IsMatch(requestedPath)) { // match found - do any replacement needed string sendToUrl = RewriterUtils.ResolveUrl(app.Context.Request.ApplicationPath, re.Replace(requestedPath, rules[i].SendTo)); // log rewriting information to the Trace object app.Context.Trace.Write("ModuleRewriter", "Rewriting URL to " + sendToUrl); // Rewrite the URL RewriterUtils.RewriteUrl(app.Context, sendToUrl); break; // exit the for loop } } 将string lookFor = "^" + RewriterUtils.ResolveUrl(app.Context.Request.ApplicationPath, rules[i].LookFor) + "$"; 改成了 string lookFor = "^" + rules[i].LookFor + "$"; 完成这2处改动之后重新编译项目，将生成的dll复制到你项目的bin目录下。 3、再就是写web.config里的重写正则了 http://(\d+)\.abc\.com /show.aspx?id=$1 注意： 问题出来了，很多人做了，实现了域名的跳转，但很多人都是转到了首页，这里不是lookfor / to /default.aspx 的问题，我自己也遇到了这样的问题，你需要在重写规则里加一个“/”在lookFor的结尾什么的规则改后成了： http://(\d+)\.abc\.com/ /show.aspx?id=$1 再一个问题，就是修改后的重写对参数的不友好,重写后的URL如果带有参数如 http://www.abc.com/news.html?id=1000,重写就返回404.下面提供重写后参数中断的解决方法： 方法一： 修改重写规则，让正则表达式接受参数： http://(\d+)\.abc\.com/news.html(.{0,}) /show.aspx?id=$1 然后你的各种参数都可以匹配到NEWS页面，比如ID，分页等，在页面里就可以正常使用参数了。 方法二： 修改上面的BaseModuleRewriter.cs protected virtual void BaseModuleRewriter_AuthorizeRequest(object sender, EventArgs e) { HttpApplication app = (HttpApplication) sender; string path = app.Request.Url.AbsoluteUri; if(path.Contains("?")) { path = path.Split('?')[0]; } Rewrite(path, app); } 把带“？”的绝对URL拆开，只去匹配不带参数的URL。 方法三： 修改ModuleRewriter.cs for(int i = 0; i < rules.Count; i++) { // get the pattern to look for, and Resolve the Url (convert ~ into the appropriate directory) string lookFor = "^" + rules[i].LookFor + "(.{0,})$"; // Create a regex (note that IgnoreCase is set) Regex re = new Regex(lookFor, RegexOptions.IgnoreCase); // See if a match is found if (re.IsMatch(requestedPath)) { // match found - do any replacement needed string sendToUrl = RewriterUtils.ResolveUrl(app.Context.Request.ApplicationPath, re.Replace(requestedPath, rules[i].SendTo)); // log rewriting information to the Trace object app.Context.Trace.Write("ModuleRewriter", "Rewriting URL to " + sendToUrl); // Rewrite the URL RewriterUtils.RewriteUrl(app.Context, sendToUrl); break; // exit the for loop } } 将string lookFor = "^" + rules[i].LookFor + "$"; 改成string lookFor = "^" + rules[i].LookFor + "(.{0,})$";
