配置文件的读取添加webconfig

　　webconfig.xml的配置文件内容挺丰富的，在这篇文章里笔者只对AppSettings这个节点进行配置文件读取和添加

public class ConfigurationRef

    {

        /// <summary>

        /// 根据键值获取配置文件

        /// </summary>

        /// <param name="key">键值</param>

        /// <returns></returns>

        public static string GetConfig(string key)

        {

            string val = string.Empty;

            if (WebConfigurationManager.AppSettings.AllKeys.Contains(key))

                val = WebConfigurationManager.AppSettings[key];

            return val;

        }



        /// <summary>

        /// 获取所有配置文件

        /// </summary>

        /// <returns></returns>

        public static Dictionary<string, string> GetConfig()

        {

            Dictionary<string, string> dict = new Dictionary<string, string>();

            foreach (string key in WebConfigurationManager.AppSettings.AllKeys)

                dict.Add(key, WebConfigurationManager.AppSettings[key]);

            return dict;

        }



        /// <summary>

        /// 根据键值获取配置文件

        /// </summary>

        /// <param name="key">键值</param>

        /// <param name="defaultValue">默认值</param>

        /// <returns></returns>

        public static string GetConfig(string key, string defaultValue)

        {

            string val = defaultValue;

            if (WebConfigurationManager.AppSettings.AllKeys.Contains(key))

                val = WebConfigurationManager.AppSettings[key];

            if (val == null)

                val = defaultValue;

            return val;

        }



        /// <summary>

        /// 写配置文件,如果节点不存在则自动创建

        /// </summary>

        /// <param name="key">键值</param>

        /// <param name="value">值</param>

        /// <returns></returns>

        public static bool SetConfig(string key, string value)

        {

            try

            {

                Configuration conf = WebConfigurationManager.OpenWebConfiguration("~");

                if (!conf.AppSettings.Settings.AllKeys.Contains(key))

                    conf.AppSettings.Settings.Add(key, value);

                else

                    conf.AppSettings.Settings[key].Value = value;

                conf.Save();

                return true;

            }

            catch { return false; }

        }



        /// <summary>

        /// 写配置文件(用键值创建),如果节点不存在则自动创建

        /// </summary>

        /// <param name="dict">键值集合</param>

        /// <returns></returns>

        public static bool SetConfig(Dictionary<string, string> dict)

        {

            try

            {

                if (dict == null || dict.Count == 0)

                    return false;

                Configuration conf = WebConfigurationManager.OpenWebConfiguration("~");//ConfigurationManager.OpenExeConfiguration(ConfigurationUserLevel.None);

                foreach (string key in dict.Keys)

                {

                    if (!conf.AppSettings.Settings.AllKeys.Contains(key))

                        conf.AppSettings.Settings.Add(key, dict[key]);

                    else

                        conf.AppSettings.Settings[key].Value = dict[key];

                }

                conf.Save();

                return true;

            }

            catch { return false; }

        }

    }

 

代码贴出来了，其实也没什么好解释的，相信大家都能看懂