ASP.NET MVC 多語言方案

最近發現資源文件是個好東西, 用的好了能夠給開發人員節約很多的時間. 例如作一個多語言的網站, 資源文件就有不小的用處.

 public class Culture
    {
        public static CultureItem ENU = new CultureItem("en-US", "English", "EN");
        public static CultureItem CHS = new CultureItem("zh-CN", "簡體中文", "CN");
        public static CultureItem CHT = new CultureItem("zh-TW", "繁體中文", "TW");
        public static CultureItem JPN = new CultureItem("ja-JP", "日本語", "JP");
        public static CultureItem DE = new CultureItem("de-DE", "Deutsch", "DE");
        public static CultureItem FR = new CultureItem("fr-FR", "French", "FR");
        public static CultureItem ES = new CultureItem("es-ES", "Spanish", "ES");
        public static CultureItem IT = new CultureItem("it-IT", "Italian", "IT");

        /// <summary>
        /// 取得實做語系
        /// </summary>
        public static List<CultureItem> All
        {
            get { return _cultures; }
        }

        // 實做語系
        private static readonly List<CultureItem> _cultures = new List<CultureItem>
        {
            ENU,
            CHS,
            CHT,
            //"en-GB",
            //"en-CA",
            //"de-DE",
            //"es-ES",
            //"it-IT",
            //"ja-JP",
            //"fr-FR",
        };

        /// <summary>
        /// 驗證culture資料是否超出範圍
        /// </summary>
        /// <param name="cultureName"></param>
        /// <returns></returns>
        public static string GetValidBigTrackerCulture(string cultureName)
        {
            //不確定預設是否為en - US, or cultureName的值超出預期的範圍
            if (_cultures.Where(w => w.LanguageCultureName == cultureName).Count() == 0)
            {
                cultureName = ENU.LanguageCultureName;
            }

            return cultureName;
        }

        /// <summary>
        /// 依照「name」參數回傳有效並已實做之語系名稱。
        /// 若無合適語系名稱，則回傳預設語系名稱。
        /// 本專案的預設語系名稱為「en-US」
        /// </summary>
        /// <param name="name">語系名稱</param>
        public static string GetImplementedCulture(string name)
        {
            // 確認是否為空字串
            if (string.IsNullOrEmpty(name))
                return GetDefaultCulture();  // 如果空字串則回傳預設語系

            // 若是該語系名稱已被實做，則接受使用該語系名稱
            var selectedCulture = _cultures.FirstOrDefault(c => c.LanguageCultureName.Equals(name, StringComparison.InvariantCultureIgnoreCase));
            if (selectedCulture != null)
            {
                return selectedCulture.LanguageCultureName; // 接受這個語系
            }

            // 取得最接近之語系名稱。例如，若是已經實做了「en-US」而使用者的請求是「en-GB」， 
            // 則回傳最接近的「en-US」因為這樣至少是相同的語言（例如：英文）  
            var n = GetNeutralCulture(name);
            foreach (var c in _cultures)
                if (c.LanguageCultureName.StartsWith(n))
                    return c.LanguageCultureName;

            // 若是沒有合適的，就回傳預設語系名稱
            return GetDefaultCulture();
        }


        /// <summary>
        /// 回傳預設的語系名稱        
        /// </summary>    
        public static string GetDefaultCulture()
        {
            return ENU.LanguageCultureName;
        }

        /// <summary>
        /// 取得目前語系名稱
        /// </summary>    
        public static string GetCurrentCulture()
        {
            return Thread.CurrentThread.CurrentCulture.Name;
        }

        public static bool IsTW
        {
            get
            {
                return GetCurrentCulture().Equals(CHT.LanguageCultureName, StringComparison.OrdinalIgnoreCase);
            }
        }

        public static CultureInfo GetCurrentCultureInfo()
        {
            return Thread.CurrentThread.CurrentCulture;
        }

        /// <summary>
        /// 取得目前的中性語系名稱
        /// </summary>    
        public static string GetCurrentNeutralCulture()
        {
            return GetNeutralCulture(Thread.CurrentThread.CurrentCulture.Name);
        }

        public static void SetCurrentCulture(string userCulture)
        {
            //驗證culture是否超出系統支援範圍
            userCulture = GetValidBigTrackerCulture(userCulture);

            if (Thread.CurrentThread.CurrentCulture.Name != userCulture)
            {
                Thread.CurrentThread.CurrentCulture = new CultureInfo(userCulture);
                Thread.CurrentThread.CurrentUICulture = Thread.CurrentThread.CurrentCulture;
            }
        }

        /// <summary>
        /// 取得中性語系名稱
        /// </summary>        
        public static string GetNeutralCulture(string name)
        {
            if (name.Length < 2)
                return name;

            return name.Substring(0, 2); // 回傳前兩個字元，例如："en", "es"
        }


        public static string CookieName
        {
            get
            {
                return Models.Enum.CookieName.BulidCookieKey(Models.Enum.CookieName.Culture);
            }
        }

    }

　　

 1 using BigZata.Common;
 2 using BigZata.Resources.Mapping.TitleMapping;
 3 using System;
 4 using System.Collections.Generic;
 5 using System.Linq;
 6 using System.Text;
 7 using System.Threading;
 8 using System.Threading.Tasks;
 9 
10 namespace Resources
11 {
12     class Program
13     {
14         static void Main(string[] args)
15         {
16             Console.Write(Thread.CurrentThread.CurrentCulture);
17 
18            // System.Globalization.CultureInfo culture = new System.Globalization.CultureInfo("en-us", true);
19            // Thread.CurrentThread.CurrentCulture = culture;
20             Culture.SetCurrentCulture("en-us");
21 
22             Console.Write(Thread.CurrentThread.CurrentCulture);
23             //  System.Globalization.CultureInfo Culture=new System.Globalization.CultureInfo
24             Console.Write(TitleMapping.LandingPage);
25             Console.ReadKey();
26         }
27     }
28 }