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Javascript技术技巧大全（五）
出处:互联网 整理: 软晨网（RuanChen.com） 发布: 2009-09-12 浏览: 138 ::
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//POST代替FORM
<SCRIPT language="VBScript">
Function URLEncoding(vstrIn)
strReturn = ""
For i = 1 To Len(vstrIn)
ThisChr = Mid(vStrIn,i,1)
If Abs(Asc(ThisChr)) < &HFF Then
strReturn = strReturn & ThisChr
Else
innerCode = Asc(ThisChr)
If innerCode < 0 Then
innerCode = innerCode + &H10000
End If
Hight8 = (innerCode And &HFF00) &HFF
Low8 = innerCode And &HFF
strReturn = strReturn & "%" & Hex(Hight8) & "%" & Hex(Low8)
End If
Next
URLEncoding = strReturn
End Function
Function bytes2BSTR(vIn)
strReturn = ""
For i = 1 To LenB(vIn)
ThisCharCode = AscB(MidB(vIn,i,1))
If ThisCharCode < &H80 Then
strReturn = strReturn & Chr(ThisCharCode)
Else
NextCharCode = AscB(MidB(vIn,i+1,1))
strReturn = strReturn & Chr(CLng(ThisCharCode) * &H100 + CInt(NextCharCode))
i = i + 1
End If
Next
bytes2BSTR = strReturn
End Function
dim strA,oReq
strA = URLEncoding("submit1=Submit&text1=中文")
set oReq = CreateObject("MSXML2.XMLHTTP")
oReq.open "POST","http://ServerName/VDir/TstResult.asp",false
oReq.setRequestHeader "Content-Length",Len(strA)
oReq.setRequestHeader "CONTENT-TYPE","application/x-www-form-urlencoded"
oReq.send strA
msgbox bytes2BSTR(oReq.responseBody)
</SCRIPT>
//readyState是xmlhttp返回数据的进度，0=载入中,1=未初始化,2=已载入,3=运行中,4=完成
//组件是否安装
isComponentInstalled("{6B053A4B-A7EC-4D3D-4567-B8FF8A1A5739}", "componentID"))
//检查网页是否存在
function CheckURL(URL)
{
var xmlhttp = new ActiveXObject("Microsoft.XMLHTTP");
xmlhttp.Open("GET",URL, false);
try
{
xmlhttp.Send();
var result = xmlhttp.status;
}
catch(e) {return(false); }
if(result==200)
{
return true;
}
xmlhttp = null;
return false;
}
//连接数据库
<script language="javascript">
//用 JavaScript 写服务器端连接数据库的代码示例
var conn = new ActiveXObject("ADODB.Connection");
conn.Open("Provider=SQLOLEDB.1; Data Source=localhost; User ID=sa; "
+"Password=; Initial Catalog=pubs");
var rs = new ActiveXObject("ADODB.Recordset");
var sql="select * from authors";
rs.open(sql, conn);
shtml = "<table width='100%' border=1>";
shtml +="<tr bgcolor='#f4f4f4'><td>au_id</td><td>au_lname</td><td>au_fname</td><td>phone</td><td>address</td><td> city</td><td>state</td><td>zip</td></tr>";
while(!rs.EOF)
{
shtml += "<tr><td>" + rs("au_id") + "</td><td>" + rs("au_lname") + "</td><td>" + rs("au_fname") + "</td><td>" + rs("phone") + "</td><td>" + rs("address") + "</td><td>" + rs("city") + "</td><td>" + rs("state") + "</td><td>" + rs("zip") + "</td></tr>";
rs.moveNext;
}
shtml += "</table>";
document.write(shtml);
rs.close();
rs = null;
conn.close();
conn = null;
</script>
//使用数据岛
<html>
<body>
srno：<input type=text datasrc=#xmldate DataFLD=srno size="76"><BR>
times：<input type=text datasrc=#xmldate DataFLD=times size="76"><BR>
<input id="first" TYPE=button value="<< 第一条记录" onclick="xmldate.recordset.moveFirst()">
<input id="prev" TYPE=button value="<上一条记录" onclick="xmldate.recordset.movePrevious()">
<input id="next" TYPE=button value="下一条记录>" onclick="xmldate.recordset.moveNext()">
<input id="last" TYPE=button value="最后一条记录>>" onclick="xmldate.recordset.moveLast()">
<input id="Add" TYPE=button value="添加新记录" onclick="xmldate.recordset.addNew()">
<XML ID="xmldate">
<infolist>
<info ><srno>20041025-01</srno><times>null</times></info>
<info ><srno>20041101-09</srno><times>2004年10月1日2点22分0秒</times></info>
</infolist>
</XML>
</body>
</html>
//获得参数
<body>
<a href="javascript:location.href=location.href + '?a=1&b=2'">search</a>
<script language="JavaScript">
<!--
var a = location.search.substr(1);
if(a.length>0)
{
var re = /([^&]*?)=([^&]*)/g
var s = a.match(re);
for(var i= 0;i<s.length;i++)
{
alert(s[i]);
alert(s[i].split("=")[1]);
}
}
//-->
</script>
</body>
//可编辑SELECT
<input type=text name=re_name style="width:100px;height:21px;font-size:10pt;"><span style="width:18px;border:0px solid red;"><select name="r00" style="margin-left:-100px;width:118px; background-color:#FFEEEE;" onChange="document.all.re_name.value=this.value;">
<option value="1">11111111<option>
<option value="2">222222</option>
<option value="3">333333</option>
</select>
</span>
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