当前位置: 首页 > 图文教程 > 网络编程 > ASP > javascript asp教程添加和修改

ASP
ASP中一个字符串处理类
获取软件下载的真实地址！再谈获取Response.redirect重定向的URL
【先锋海盗类】Ver2005 最终版
CacheCls缓存的应用
用ASP应用程序实现自己的UrlDeCode
[原创]asp截取字符串的两种应用
蓝色空间 天气小偷
内容分页函数
创力采集程序用到的函数 推荐
用ASP和SQL实现基于Web的事件日历
FSO操作文件系统
用数据库生成不重复的流水号
asp编译成dll-图形化教程
NextRecordset 和 GetRows 双簧合奏
asp中通过getrows实现数据库记录分页的一段代码
网站生成静态页面，及网站数据采集的攻、防原理和策略
ASP开发中数据库文件调用的捷径
两个小函数让你的ASP程序对SQL注入免疫！
利用Microsoft.XMLHTTP控件发送COOKIE
ASP的天空小偷

No. « 35 36 37 38 »

技术文章搜索

关键字

ASP 中的 javascript asp教程添加和修改

出处:互联网   整理: 软晨网（RuanChen.com）   发布: 2009-09-13   浏览: 53 ::
收藏到网摘: n/a

The Connection Execute():

If you want to retrieve data from a database then you have no choice but to use a Recordset. However, for the purposes of adding, updating, and deleting data you don't necessarily have to have a Recordset. It's up to you.

For the purposes of adding, updating and deleting you can avoid the Recordset by using the Execute() method.

Get Started:

Below is the script for Lesson 19. 

<%@LANGUAGE="JavaScript"%>
var strConnect="Provider=Microsoft.Jet.OLEDB.4.0; Data Source="
strConnect += Server.MapPath("\\GOP") + "\\datastores\\gop.mdb;"
<!-- METADATA TYPE="typelib"
FILE="C:\Program Files\Common Files\System\ado\msado15.dll" -->
<HTML>
<HEAD>
<TITLE>Administrator Page - Changing the Mailing List</TITLE>
</HEAD>
<BODY LINK="red" VLINK="red" ALINK="crimson">
<H2>Administrator Page</H2>
<H3>Changing a the Mailing List</H3>
<%
if (Request.Form("Delete") > "")	{	var sql="DELETE FROM Address WHERE ID = " + Request.Form("ID") + ";"	}
else	{	var firstName = new String(Request.Form("firstName"))	var lastName = new String(Request.Form("lastName"))	var Address = new String(Request.Form("Address"))	var City = new String(Request.Form("City"))	var myRegExp = /[']/g;	firstName = firstName.replace(myRegExp, ''');	lastName = lastName.replace(myRegExp, ''');	Address = Address.replace(myRegExp, ''');	City = City.replace(myRegExp, ''');	var sql="UPDATE Address SET firstName= '" + firstName + "' , lastName='"	sql += lastName + "' , Address='" + Address + "' , City='"	sql += City + "' , State='" + Request.Form("State") + "' , Zip='"	sql += Request.Form("Zip") + "' WHERE ID = " + Request.Form("ID") + ";"	}
var objConn=Server.CreateObject("ADODB.Connection");
objConn.Open(strConnect)
objConn.Execute(sql)
objConn.Close()
objConn = null;
Response.Write("The member has been updated in the database.")
Response.Write("<A HREF=\"../files/committee.asp\">")
Response.Write("Click here to see it.</A>")
%>

There's no link to see this one in action. I did that for security reasons. I just want to point out a few highlights.

Danger in The Single Quote:

You'll notice that I replace single quote marks with the HTML encoded equivalent. I did that using the following code. 

var myRegExp = /[']/g;
firstName = firstName.replace(myRegExp, ''');

The single quote is the only character you cannot input into a database using an ASP application. Everything else is fair game. DO NOT accept any text from users into your database without replacing all single quotes. To use an analogy, the single quote is like a key that opens up your entire database. Hackers will tear your application to shreds if you let someone input single quotes.

Execute( ):

The only other thing I want to spend any time with is objConn.Execute(sql). The variable sql takes on one of two definitions depending on the result of an "if" statement. In this case sql does all the work, and we never need a recordset.