标签:void 更新 source ref 添加 return man refresh error
1 /// <summary> 2 /// 添加和更新配置文件web.config的appSettings,缺点是会删除注释 3 /// </summary> 4 /// <param name="key"></param> 5 /// <param name="value"></param> 6 public static void AddUpdateAppSettings(string key, string value) 7 { 8 try 9 { 10 var configFile = WebConfigurationManager.OpenWebConfiguration("~"); 11 var settings = configFile.AppSettings.Settings; 12 try 13 { 14 if (settings[key] == null) 15 { 16 settings.Add(key, value); 17 } 18 else 19 { 20 settings[key].Value = value; 21 } 22 configFile.Save(ConfigurationSaveMode.Modified); 23 ConfigurationManager.RefreshSection(configFile.AppSettings.SectionInformation.Name); 24 } 25 catch (Exception ex) 26 { 27 if (settings.Count != 0) 28 { 29 NLog.Error("配置文件写入失败,需要写入文件的配置信息:==============================="); 30 foreach (string tkey in settings.AllKeys) 31 { 32 string tvalue = settings[tkey].Value; 33 NLog.Error(string.Format("Key: {0} Value: {1}", tkey, tvalue)); 34 } 35 } 36 throw; 37 } 38 } 39 catch (Exception ex) 40 { 41 NLog.Error("具体失败内容:" + ex); 42 } 43 } 44 45 /// <summary> 46 /// 添加和更新web.config的appSettings,且不删除注释 47 /// </summary> 48 /// <param name="key"></param> 49 /// <param name="value"></param> 50 public static void UpdateAppSetting(string key, string value) 51 { 52 try 53 { 54 Configuration config = WebConfigurationManager.OpenWebConfiguration("~"); 55 SaveUsingXDocument(key, value, config.AppSettings.ElementInformation.Source); 56 } 57 catch (Exception ex) 58 { 59 NLog.Error("更新配置失败" + ex); 60 } 61 } 62 private static void SaveUsingXDocument(string key, string value, string fileName) 63 { 64 XDocument document = XDocument.Load(fileName); 65 if (document.Root == null) 66 { 67 return; 68 } 69 var appSettings = document.Root.Element("appSettings"); 70 if (appSettings == null) return; 71 XElement appSetting = appSettings.Elements("add").FirstOrDefault(x => x.Attribute("key").Value == key); 72 if (appSetting != null) 73 { 74 appSetting.Attribute("value").Value = value; 75 } 76 else 77 { 78 XElement ele = new XElement("add", new XAttribute("key", key), new XAttribute("value", value)); 79 appSettings.Add(ele); 80 } 81 document.Save(fileName); 82 }
标签:void 更新 source ref 添加 return man refresh error
原文地址:https://www.cnblogs.com/mantishell/p/11663504.html