WEB打印设置解决方案四(在ASP中实现网络打印功能)
类别: ASP教程 
使用到的技术：
ASP,WSH,VBScript
文件ASPPrint.asp代码如下：
<%@ Language=VBScript %>
<%
Option Explicit
Dim strSubmit \' Form中用来保存提交按钮的值
Dim strPrinterPath \' Form中保存网络打印机路径的值
Dim strUsername \' Form中用户名的值
Dim strPassword \' Form中密码的值
Dim strMessage \' Form打印内容的值
Dim objFS \' VBScript中的文件系统对象
Dim objWSHNet \' WSH中的网络对象
Dim objPrinter \' 打印对象
strSubmit = Request.Form("Submit")
%>
<HTML>
<HEAD>
<META NAME="GENERATOR" Content="Microsoft Visual Studio 6.0">
</HEAD>
<BODY>
<%
If strSubmit = "" Then
%>
注意的是：
由于我是演示起见，其中有关NT的帐号和密码都是使用了不加密的手段在ASP中传递的真正的运用中应该对该登录过程进行安全处理。
<FORM action="ASPPrint.asp" method=POST id=form name=form>
<TABLE WIDTH=100% ALIGN=center BORDER=0 CELLSPACING=1 CELLPADDING=1>
<TR>
<TD ALIGN=right NOWRAP>网络打印机路径:</TD>
<TD ALIGN=left NOWRAP><INPUT type="text" id=printerpath name=printerpath value="\\< Domain >< Printer >"></TD>
</TR>
<TR>
<TD ALIGN=right NOWRAP>登录帐号:</TD>
<TD ALIGN=left NOWRAP><INPUT type="text" id=username name=username
value="<% = strUsername %>"></TD>
</TR>
<TR>
<TD ALIGN=right NOWRAP>登录口令:</TD>
<TD ALIGN=left NOWRAP><INPUT type="password" id=password name=password></TD>
</TR>
<TR>
<TD ALIGN=right NOWRAP>请输入你想打印的文字:</TD>
<TD ALIGN=left NOWRAP><TEXTAREA rows=2 cols=20 id=message name=message></TEXTAREA></TD>
</TR>
<TR>
<TD ALIGN=right NOWRAP> </TD>
<TD ALIGN=left NOWRAP><INPUT type="submit" value="Submit" id=submit name=submit></TD>
</TR>
</TABLE>
</FORM>
当以上信息被提交后，就可以按照下面的代码进行打印了。
<%
Else
\' 从form中取得响应信息。
strPrinterPath = Request.Form("printerpath")
strUsername = Request.Form("username")
strPassword = Request.Form("password")
strMessage = Request.Form("message")
We will now use the VBScript FileSystemObject object and the WSH Net work object. The Network object will
give us the methods we need to open a printer connection, and the FileSystemObject will allow us to stream our
output to the printer. We create these objects in the following code
example:
\' 使用WSH连接网络打印机
Set objWSHNet = CreateObject("WScript.Network")
objWSHNet.AddPrinterConnection "LPT1", strPrinterPath, False, strUsername, strPassword
\'使用文件系统对象将打印设备作为一个文件使用
Set objFS = CreateObject("Scripting.FileSystemObject")
Set objPrinter = objFS.CreateTextFile("LPT1:", True)
\' 给打印设备送出文本
objPrinter.Write(strMessage)
\'关闭打印设备对象并进行错误陷阱处理
On Error Resume Next
objPrinter.Close
\' 如果发生错误，关闭打印连接，并输出错误信息
If Err Then
Response.Write ("Error # " & CStr(Err.Number) & " " & Err.Description)
Err.Clear
Else
\' 操作成功，输出确认信息
Response.Write("<CENTER>")
Response.Write("<TABLE WIDTH=100% ALIGN=center BORDER=0 CELLSPACING=1 CELLPADDING=1>")
Response.Write("<TR><TD ALIGN=RIGHT><B>打印消息送出:</B></TD>")
Response.Write("<TD ALIGN=LEFT>" & strMessage & "</TD></TR>")
Response.Write("<TR><TD ALIGN=RIGHT><B>网络打印机路径:</B></TD>")
Response.Write("<TD ALIGN=LEFT>" & strPrinterPath & "</TD></TR>")
Response.Write("<TR><TD ALIGN=RIGHT><B>登录帐号:</B></TD>")
Response.Write("<TD ALIGN=LEFT>" & strUsername & "</TD></TR>")
Response.Write("</TABLE>")
Response.Write("</CENTER>")
End If
\' 取消打印连接
objWSHNet.RemovePrinterConnection "LPT1:"
Set objWSHNet = Nothing
Set objFS = Nothing
Set objPrinter = Nothing
End If
%>
</BODY>
</HTML>
ASP,WSH,VBScript
文件ASPPrint.asp代码如下：
<%@ Language=VBScript %>
<%
Option Explicit
Dim strSubmit \' Form中用来保存提交按钮的值
Dim strPrinterPath \' Form中保存网络打印机路径的值
Dim strUsername \' Form中用户名的值
Dim strPassword \' Form中密码的值
Dim strMessage \' Form打印内容的值
Dim objFS \' VBScript中的文件系统对象
Dim objWSHNet \' WSH中的网络对象
Dim objPrinter \' 打印对象
strSubmit = Request.Form("Submit")
%>
<HTML>
<HEAD>
<META NAME="GENERATOR" Content="Microsoft Visual Studio 6.0">
</HEAD>
<BODY>
<%
If strSubmit = "" Then
%>
注意的是：
由于我是演示起见，其中有关NT的帐号和密码都是使用了不加密的手段在ASP中传递的真正的运用中应该对该登录过程进行安全处理。
<FORM action="ASPPrint.asp" method=POST id=form name=form>
<TABLE WIDTH=100% ALIGN=center BORDER=0 CELLSPACING=1 CELLPADDING=1>
<TR>
<TD ALIGN=right NOWRAP>网络打印机路径:</TD>
<TD ALIGN=left NOWRAP><INPUT type="text" id=printerpath name=printerpath value="\\< Domain >< Printer >"></TD>
</TR>
<TR>
<TD ALIGN=right NOWRAP>登录帐号:</TD>
<TD ALIGN=left NOWRAP><INPUT type="text" id=username name=username
value="<% = strUsername %>"></TD>
</TR>
<TR>
<TD ALIGN=right NOWRAP>登录口令:</TD>
<TD ALIGN=left NOWRAP><INPUT type="password" id=password name=password></TD>
</TR>
<TR>
<TD ALIGN=right NOWRAP>请输入你想打印的文字:</TD>
<TD ALIGN=left NOWRAP><TEXTAREA rows=2 cols=20 id=message name=message></TEXTAREA></TD>
</TR>
<TR>
<TD ALIGN=right NOWRAP> </TD>
<TD ALIGN=left NOWRAP><INPUT type="submit" value="Submit" id=submit name=submit></TD>
</TR>
</TABLE>
</FORM>
当以上信息被提交后，就可以按照下面的代码进行打印了。
<%
Else
\' 从form中取得响应信息。
strPrinterPath = Request.Form("printerpath")
strUsername = Request.Form("username")
strPassword = Request.Form("password")
strMessage = Request.Form("message")
We will now use the VBScript FileSystemObject object and the WSH Net work object. The Network object will
give us the methods we need to open a printer connection, and the FileSystemObject will allow us to stream our
output to the printer. We create these objects in the following code
example:
\' 使用WSH连接网络打印机
Set objWSHNet = CreateObject("WScript.Network")
objWSHNet.AddPrinterConnection "LPT1", strPrinterPath, False, strUsername, strPassword
\'使用文件系统对象将打印设备作为一个文件使用
Set objFS = CreateObject("Scripting.FileSystemObject")
Set objPrinter = objFS.CreateTextFile("LPT1:", True)
\' 给打印设备送出文本
objPrinter.Write(strMessage)
\'关闭打印设备对象并进行错误陷阱处理
On Error Resume Next
objPrinter.Close
\' 如果发生错误，关闭打印连接，并输出错误信息
If Err Then
Response.Write ("Error # " & CStr(Err.Number) & " " & Err.Description)
Err.Clear
Else
\' 操作成功，输出确认信息
Response.Write("<CENTER>")
Response.Write("<TABLE WIDTH=100% ALIGN=center BORDER=0 CELLSPACING=1 CELLPADDING=1>")
Response.Write("<TR><TD ALIGN=RIGHT><B>打印消息送出:</B></TD>")
Response.Write("<TD ALIGN=LEFT>" & strMessage & "</TD></TR>")
Response.Write("<TR><TD ALIGN=RIGHT><B>网络打印机路径:</B></TD>")
Response.Write("<TD ALIGN=LEFT>" & strPrinterPath & "</TD></TR>")
Response.Write("<TR><TD ALIGN=RIGHT><B>登录帐号:</B></TD>")
Response.Write("<TD ALIGN=LEFT>" & strUsername & "</TD></TR>")
Response.Write("</TABLE>")
Response.Write("</CENTER>")
End If
\' 取消打印连接
objWSHNet.RemovePrinterConnection "LPT1:"
Set objWSHNet = Nothing
Set objFS = Nothing
Set objPrinter = Nothing
End If
%>
</BODY>
</HTML>
