读取常用数据（1）读取Web.config，QueryString和Form（Post）

又几个毫无技术含量的函数，记录一下。呵呵

using System;
using System.Web;
using System.Configuration;//读取web.config

namespace QS_Web
{
    namespace Kobold
    {
        public class Read
        {
            public static string GetConfigSetting(string strKeyName)//读取Web.config文件设置字符串
            {
                string str;
                try
                {
                    str = ConfigurationSettings.AppSettings[strKeyName];//读取
                }
                catch
                {
                    str = "null";
                }
                if(str == null || str == String.Empty)
                {
                    return "null";
                }
                else
                {
                    return str;
                }
            }

            public static string GetQueryString(string strParameterName)//获取Url Query String
            {
                string str;
                try
                {
                    if (HttpContext.Current.Request.QueryString[strParameterName]!=null)
                    {
                        str = HttpContext.Current.Request.QueryString[strParameterName];
                    }
                    else
                    {
                        str = "null";
                    }
                }
                catch
                {
                    str = "error";
                }
                return str;
            }

            public static string GetForm(string strName)//获取 post Form
            {
                string str;
                try
                {
                    if (HttpContext.Current.Request.Form[strName]!=null)
                    {
                        str = HttpContext.Current.Request.Form[strName];
                    }
                    else
                    {
                        str = "null";
                    }
                }
                catch
                {
                    str = "error";
                }
                return str;
            }
        }
    }
}