The principle is very simple: use the Application_BeginRequest(object sender, EventArgs e) event in Global.asax to obtain form or URL submission data, and then complete the malicious code inspection through the SQLInjectionHelper class. This code only considers the versatility and ease of deployment, because the project has been developed and has been online. In order to avoid a large number of modifications, this general program was written. You can add form values that do not need to be checked in this, so that there is no checking. Certain fields are also available.
