方法一：1、添加Web.config， <system.web></system.web>中添加<customErrors mode="On"
defaultRedirect="ApplicationErroy.aspx" ></customErrors>节点，2、添加错误处理页面：ApplicationErroy.aspx调用下面的方法：private void DealErroy() { HttpException erroy = new HttpException(); string strCode = erroy.ErrorCode.ToString(); string strMsg = erroy.Message; erroy.HelpLink = "sss"; Response.Write("ErrorCode:" + strCode + "<br>"); Response.Write("Message:" + strMsg + "<br>"); Response.Write("HelpLink:" + erroy.HelpLink + "<br>"); Response.Write("Source:" + erroy.Source + "<br>"); Response.Write("TargetSite:" + erroy.TargetSite + "<br>"); Response.Write("InnerException:" + erroy.InnerException + "<br>"); Response.Write("StackTrace:" + erroy.StackTrace + "<br>"); Response.Write("GetHtmlErrorMessage:" + erroy.GetHtmlErrorMessage() + "<br>"); Response.Write("erroy.GetHttpCode().ToString():" + erroy.GetHttpCode().ToString() +
"<br>"); Response.Write("erroy.Data.ToString()::" + erroy.Data.ToString() + "<br>"); }这种方法不能完整地显示错误信息；方法二：1、添加Web.config， <system.web></system.web>中添加<customErrors mode="On"
defaultRedirect="ApplicationErroy.aspx" ></customErrors>节点，2、添加Global.asax文件，找到Application_Error事件，加入以下代码： Exception erroy = Server.GetLastError(); string err = "出错页面是：" + Request.Url.ToString() + "<br>"; err += "异常信息：" + erroy.Message + "<br>"; err += "Source:" + erroy.Source + "<br>"; err += "StackTrace:" + erroy.StackTrace + "<br>"; Server.ClearError(); Application["erroy"] = err;2、添加错误处理页面：ApplicationErroy.aspx 加入以下代码； Response.Write(Application["erroy"].ToString());这种方法能完整地显示错误信息，最好的办办法还是两种方法一起用最好！
另:web.config中也可以把<error statusCode="403" redirect="NoAccess.htm" />//访问被禁止<error statusCode="404" redirect="FileNotFound.htm" />//找不到页面添加进去
http错误代码含义： "100" : Continue "101" : witching Protocols "200" : OK "201" : Created "202" : Accepted "203" : Non-Authoritative Information "204" : No Content "205" : Reset Content "206" : Partial Content "300" : Multiple Choices "301" : Moved Permanently "302" : Found "303" : See Other "304" : Not Modified "305" : Use Proxy "307" : Temporary Redirect "400" : Bad Request "401" : Unauthorized "402" : Payment Required "403" : Forbidden "404" : Not Found "405" : Method Not Allowed "406" : Not Acceptable "407" : Proxy Authentication Required "408" : Request Time-out "409" : Conflict "410" : Gone "411" : Length Required "412" : Precondition Failed "413" : Request Entity Too Large "414" : Request-URI Too Large "415" : Unsupported Media Type "416" : Requested range not satisfiable "417" : Expectation Failed "500" : Internal Server Error "501" : Not Implemented "502" : Bad Gateway "503" : Service Unavailable "504" : Gateway Time-out "505" : HTTP Version not supported
----------
