Translater-语言翻译类

using System;
using System.Collections.Generic;

using System.Text;
using System.Net;
using System.IO;
using Newtonsoft.Json;
using System.Web;

namespace Framework
{
    /// <summary>
    /// 语言翻译类
    /// </summary>
    public class Translater
    {
        /// <summary>
        /// 翻译方法 中文："zh-cn", 英文："en" type：MircsoftTanslater，GoogleTanslater
        /// </summary>
        /// <param name="sourceText">翻译原文</param>
        /// <param name="fromLanguage">原始语言</param>
        /// <param name="toLanguage">目标语言</param>
        /// <param name="type">翻译API</param>
        /// <returns>译文</returns>
        public static string Translate(string sourceText, string fromLanguage, string toLanguage, string type = "MircsoftTanslater")
        {
            string translateStr = string.Empty;
            switch (type)
            {
                case "MircsoftTanslater":
                    translateStr = MircsoftTanslater(sourceText, fromLanguage, toLanguage);//"zh-cn", "en";
                    break;
                case "GoogleTanslater":
                    translateStr = GoogleTranslater(sourceText, fromLanguage + "|" + toLanguage);//"zh-cn|en";
                    break;
            }
            return translateStr;
        }

        /// <summary>
        /// Google 翻译： Get方式获取翻译
        /// </summary>
        /// <param name="sourceText"></param>
        /// <param name="langPair"></param>
        /// <returns></returns>
        private static string GoogleTranslater(string sourceText, string langPair)
        {
            string result;

            langPair = langPair.ToLower() == "zh" ? "zh|en" : "en|zh";
            string url = "http://ajax.googleapis.com/ajax/services/language/translate?v=1.0&langpair=" + HttpUtility.UrlEncode(langPair) + "&q=" + HttpUtility.UrlEncode(sourceText);
            HttpWebRequest request = (HttpWebRequest)WebRequest.Create(url);
            request.Method = "GET";
            request.Referer = "http://www.my-ajax-site.com";
            try
            {
                HttpWebResponse response = (HttpWebResponse)request.GetResponse();
                Stream responseStream = response.GetResponseStream();
                StreamReader reader = new StreamReader(responseStream, Encoding.GetEncoding("UTF-8"));
                string responseStr = reader.ReadToEnd();
                ResponseResult readConfig = (ResponseResult)JavaScriptConvert.DeserializeObject(responseStr, typeof(ResponseResult));
                if (readConfig.responseStatus == "200")
                {
                    result = readConfig.responseData.translatedText;
                }
                else
                {
                    result = readConfig.responseStatus;
                }
            }
            catch (Exception Ex)
            {
                result = "err:" + Ex.Message;
            }
            return result;
        }


        /// <summary>
        /// 微软翻译API :  语言类型："zh-cn", "en"
        /// </summary>
        /// <param name="orgStr">翻译原文</param>
        /// <param name="fromType">原文语言类型</param>
        /// <param name="toType">目标语言类型</param>
        /// <returns></returns>
        public static string MircsoftTanslater(string orgStr, string fromType, string toType)
        {
            string content = string.Empty;
            string appId = "56E164FED4017D272E06AD7E16778536251CA5CB";
            string text = orgStr;// "Translate this for me";
            string from = fromType;// "en";
            string to = toType;// "zh-cn";

            string uri = "http://api.microsofttranslator.com/v2/Http.svc/Translate?appId=" + appId + "&text=" + System.Web.HttpUtility.UrlEncode(text) + "&from=" + from + "&to=" + to;
            HttpWebRequest httpWebRequest = (HttpWebRequest)WebRequest.Create(uri);
            WebResponse response = null;
            try
            {
                response = httpWebRequest.GetResponse();
                StreamReader reader = new StreamReader(response.GetResponseStream());
                content = reader.ReadToEnd();//"<string xmlns=\"http://schemas.microsoft.com/2003/10/Serialization/\">Hello, China</string>" 
                content = content.Replace("<string xmlns=\"http://schemas.microsoft.com/2003/10/Serialization/\">", "");
                content = content.Replace("</string>", "");
                response.Close();
                reader.Dispose();
            }
            catch (WebException e)
            {
                content = ProcessWebException(e, "Failed to translate");
            }
            finally
            {
                if (response != null)
                {
                    response.Close();
                    response = null;
                }
            }
            return content;
        }
        private static string ProcessWebException(WebException e, string message)
        {
            string result = string.Empty;
            result = string.Format("{0}: {1}", message, e.ToString());
            // Obtain detailed error information
            string strResponse = string.Empty;
            using (HttpWebResponse response = (HttpWebResponse)e.Response)
            {
                using (Stream responseStream = response.GetResponseStream())
                {
                    using (StreamReader sr = new StreamReader(responseStream, System.Text.Encoding.ASCII))
                    {
                        strResponse = sr.ReadToEnd();
                    }
                }
            }
            result = string.Format("Http status code={0}, error message={1}", e.Status, strResponse);
            return result;
        }
    }
    /// <summary>
    /// 翻译返回类
    /// </summary>
    public class ResponseResult
    {
        public ResponseData responseData { get; set; }
        public string responseDetails { get; set; }
        public string responseStatus { get; set; }
    }
    /// <summary>
    ///  
    /// </summary>
    public class ResponseData
    {
        public string translatedText { get; set; }
    }
}