javascript asp教程エラー処理
3202 ワード
The ASPError Object has zero(0)Methods、nine(9)Properties、ゼロ(0)Events、andゼロ(0)Collection.
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SourceThe way you access the ASPError Propties is with a Server Method.Yeah，I know；it doesn't make sense.Start with something like var myErrror=Server.Get LastError()and then You can access alne ASPError Properties following wind this pattern:<=myError.Line%>
Below is the script for Lesson 15.
Okay，so what happened to On Error Resume Next？Sorry，that ain'tのJavaScript thing.So，what about on error？That won't work on the server side.But thanks to some core JavaScript we have some error handing.
The section of script for which you wish to provide error handling gos inside the try｛statemens and the what-to-do in the event of an error gos inside the catch｛statement.The is also filly｝
Not everry ASP server allows you access to the ASPER or Object.So，don't be surprsed if ASPError gives you.error.
アップコード
AspDescription
Category
Column
Description
ファイル
Line
Number
SourceThe way you access the ASPError Propties is with a Server Method.Yeah，I know；it doesn't make sense.Start with something like var myErrror=Server.Get LastError()and then You can access alne ASPError Properties following wind this pattern:<=myError.Line%>
Below is the script for Lesson 15.
<%@LANGUAGE="JavaScript"%>
<!-- METADATA TYPE="typelib"
FILE="C:\Program Files\Common Files\System\ado\msado15.dll" -->
<%
try
{
Response.Write("<STRONG>Use <I>GetLastError( )</I><BR></STRONG>\r")
myError = Server.GetLastError()
Response.Write("myError.Line: " + myError.Line + "<BR>\r")
Response.Write("myError.File: " + myError.File + "\r")
Response.Write("<HR>\r<STRONG>")
Response.Write("Now an intentional error...")
Response.Write("<BR></STRONG>\r")
myError = erver.GetLastError() //this line causes an error
Response.Write("myError.Line: " + myError.Line + "<BR>\r")
Response.Write("myError.File: " + myError.File + "<BR>\r")
}
catch(myDumbError)
{
Response.Write("There is an error: " + myDumbError)
%>
<BR>
Graceful error handling goes here (inside the catch statement).
Make it as simple or sophisticated as you like.<BR>
<HR>
<STRONG>Now let's break down the error Object.</STRONG><BR>
<%
for ( var i in myDumbError)
{
Response.Write(i + ": " + myDumbError[i] + "<BR>\r")
}
}
finally
{
Response.Write("<HR><STRONG>Let's Finish Up.</STRONG><BR>\r")
Response.Write("Code inside the <I>finally { }</I> statement ")
Response.Write("executes regardless of error (or lack thereof). \r")
Response.Write("<I>finally{ }</I> is totally optional. ")
Response.Write("It's a good place for things like RS.Close()... ")
Response.Write("which you'll see later on.")
}
%>
Okay，so what happened to On Error Resume Next？Sorry，that ain'tのJavaScript thing.So，what about on error？That won't work on the server side.But thanks to some core JavaScript we have some error handing.
The section of script for which you wish to provide error handling gos inside the try｛statemens and the what-to-do in the event of an error gos inside the catch｛statement.The is also filly｝
Not everry ASP server allows you access to the ASPER or Object.So，don't be surprsed if ASPError gives you.error.