如何使用ASP进行打印操作 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 Network 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:
Set objFS = CreateObject("Scripting.FileSystemObject") Set objWSHNet = CreateObject("WScript.Network") ' 使用WSH连接网络打印机 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 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>
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