网站安全：整站如何防止SQL注入方式入侵

public class parameterCheck{

public static bool isEmail(string emailString){

return System.Text.RegularExpressions.Regex.IsMatch(emailString, “[‘\\w_-]+(\\.

[‘\\w_-]+)*@[‘\\w_-]+(\\.[‘\\w_-]+)*\\.[a-zA-Z]{2,4}”);

}

public static bool isInt(string intString){

return System.Text.RegularExpressions.Regex.IsMatch(intString ,”^(\\d{5}-\\d{4})|

(\\d{5})$”);

}

public static bool isUSZip(string zipString){

return System.Text.RegularExpressions.Regex.IsMatch(zipString ,”^-[0-9]+$|^[0-9]

+$”);

} }

USzip” />

String[] safeParameters = System.Configuration.ConfigurationSettings.AppSettings

[“safeParameters”].ToString().Split(‘,’);

for(int i= 0 ;i < safeParameters.Length; i++){

String parameterName = safeParameters[i].Split(‘-‘)[0];

String parameterType = safeParameters[i].Split(‘-‘)[1];

isValidParameter(parameterName, parameterType);

}

}

public void isValidParameter(string parameterName, string parameterType){

string parameterValue = Request.QueryString[parameterName];

if(parameterValue == null) return;

if(parameterType.Equals(“int32”)){

if(!parameterCheck.isInt(parameterValue)) Response.Redirect(“parameterError.aspx”);

}

else if (parameterType.Equals(“double”)){

if(!parameterCheck.isDouble(parameterValue)) Response.Redirect(“parameterError.aspx”);

}

else if (parameterType.Equals(“USzip”)){

if(!parameterCheck.isUSZip(parameterValue)) Response.Redirect(“parameterError.aspx”);

}

else if (parameterType.Equals(“email”)){

if(!parameterCheck.isEmail(parameterValue)) Response.Redirect(“parameterError.aspx”);

} }