ASP.NET防止SQL注入的方法示例_实用技巧_

 void Application_BeginRequest(object sender, EventArgs e) { bool result = false; if (Request.RequestType.ToUpper() == "POST") { //post方式的我就不写了。 } else { result = ValidUrlGetData(); } if (result) { Response.Write("您提交的数据有恶意字符！"); Response.End(); } } /// 
 /// 获取QueryString中的数据 /// 
 public static bool ValidUrlGetData() { bool result = false; for (int i = 0; i < HttpContext.Current.Request.QueryString.Count; i++) { result = Validate(HttpContext.Current.Request.QueryString[i].ToString()); if (result) { break; }//如果检测存在漏洞 } return result; } public static string []strs = new string[] {"select","drop","exists","exec","insert","delete","update","and","or","user" };//此处我随便加了几个，大家可以多加点哈。 public static bool Validate(string str) { for (int i = 0; i < strs.Length; i++) { if (str.IndexOf(strs[i]) != -1) { return true; break; } } return false; }