c# dan asp.net mencegah metode pemfilteran injeksi SQL

Sampah kecil · Diposting pada 19/04/2015 23.54.16

Saya menggunakan asp.net untuk presentasi, hehe

Kode Meja Depan:

<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="sqltest.aspx.cs" Inherits="TestWeb.sqltest" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title></title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:TextBox ID="txtsql" runat="server"></asp:TextBox>
<asp:Button ID="btnsql" runat="server" Text="注入" onclick="btnsql_Click" />
</div>
</form>
</body>
</html>

Salin kode

Kode Latar Belakang:

Salin kode

Kode Kelas zhuru.cs:

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Text.RegularExpressions;
namespace TestWeb
{
public class zhuru
{
public static bool ProcessSqlStr(string inputString)
{
string SqlStr = @"and|or|exec|execute|insert|select|delete|update|alter|create|drop|count|\*|chr|char|asc|mid|substring|master|truncate|declare|xp_cmdshell|restore|backup|net +user|net +localgroup +administrators";
try
{
if ((inputString != null) && (inputString != String.Empty))
{
string str_Regex = @"\b(" + SqlStr + @")\b";
Regex Regex = new Regex(str_Regex, RegexOptions.IgnoreCase);
//string s = Regex.Match(inputString).Value;
if (true == Regex.IsMatch(inputString))
return false;
}
}
catch
{
return false;
}
return true;
}
}
}

Salin kode

Sampah kecil · Diposting pada 07/02/2022 19.33.01

Pernyataan SQL yang disambung secara dinamis Java mencegah injeksi database
https://www.itsvse.com/thread-10249-1-1.html

pdang · Diposting pada 06/03/2022 10.40.43

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