# Copyright (c) 1993-1999 Microsoft Corp. # # This is a sample HOSTS file used by Microsoft TCP/IP for Windows. # # This file contains the mappings of IP addresses to host names. Each # entry should be kept on an individual line. The IP address should # be placed in the first column followed by the corresponding host name. # The IP address and the host name should be separated by at least one # space. # # Additionally, comments (such as these) may be inserted on individual # lines or following the machine name denoted by a '#' symbol. # # For example: # # 102.54.94.97 rhino.acme.com # source server # 38.25.63.10 x.acme.com # x client host127.0.0.1 localhost//// 这是hosts里面的类容，貌似已经映射了啊！！ 还是打不开！
我没用IIS。。 就是用VS附带的 ASP.net development server。。我将 hosts里的 127.0.0.1 localhost 改为 127.0.0.1 local 然后运行的时候输入 http://local:1343/defalut.aspx 也能顺利运行。。 为什么啊？ 用localhost打死不行啊！ 我那个ASP.net development server默认的就是localhost,难道每次都要改啊？
C:\WINDOWS\system32\drivers\etc\hosts
看看有没有做localhost的映射。记得多结贴
#
# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
#
# This file contains the mappings of IP addresses to host names. Each
# entry should be kept on an individual line. The IP address should
# be placed in the first column followed by the corresponding host name.
# The IP address and the host name should be separated by at least one
# space.
#
# Additionally, comments (such as these) may be inserted on individual
# lines or following the machine name denoted by a '#' symbol.
#
# For example:
#
# 102.54.94.97 rhino.acme.com # source server
# 38.25.63.10 x.acme.com # x client host127.0.0.1 localhost//// 这是hosts里面的类容，貌似已经映射了啊！！ 还是打不开！
127.0.0.1 localhost
10楼的， hosts文件就是那样的!还是只能通过127.0.0.1访问！
localhost 无法访问！
那个人看错了，他以为你是用IIS。
然后运行的时候输入 http://local:1343/defalut.aspx 也能顺利运行。。
为什么啊？
用localhost打死不行啊！
我那个ASP.net development server默认的就是localhost,难道每次都要改啊？
2、打开http://127.0.0.1 看是否能访问IIS的默认网页，能访问则说明IIS已经成功安装到电脑上，可能是无法解析localhost；
3、开始--命令（cmd）--ping localhost，看是否能ping通，从127.0.0.1上返回信息，如果成功则说明可以解析localhost；
4、如果上一步不成功，则用记事本打开C:\WINDOWS\system32\drivers\etc\hosts文件，看里面是否有包含：127.0.0.1 localhost ，如果没有则将其添加进去，再查看能否访问localhost。
5、尝试将网站的主目录指向另一个目录或新建一个虚拟目录，并在该新目录创建一个新的网页文件，如index.html，然后将其加到默认网站的"文档"项中作为默认访问的网页，重新输入网址：http://localhost，看否能访问。
6、还是不行的话将IIS卸载掉，重新再安装一次。参考：http://topic.csdn.net/u/20080121/21/a2c26049-1382-4cda-ae5b-ecf3d0e7668c.html
就用VS自带的 ASP.net develoment server 来调试程序。
出现冲突的异常不奇怪，里面还有个sln的东东
建议，在IIs里建虚拟目录
就不会出现此类问题了