Translater-语言翻译类代码,C#代码库,德仔网

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【C#】 Translater-语言翻译类
作者:涣海 / 发布于2016/7/27/ 756
using System;  
using System.Collections.Generic;  
  
using System.Text;  
using System.Net;  
using System.IO;  
using Newtonsoft.Json;  
using System.Web;  
using System.Text.RegularExpressions;  
  
namespace Framework  
{  
    /// <summary>  
    /// 语言类型  
    /// </summary>  
    public class LanguageType  
    {  
        /// <summary>  
        /// 中文  
        /// </summary>  
        public static string Chinese = "zh-cn";  
        /// <summary>  
        /// 英文  
        /// </summary>  
        public static string English = "en";  
    }  
    /// <summary>  
    /// 翻译方式类型  
    /// </summary>  
    public class TranslationType  
    {  
        /// <summary>  
        /// Google  
        /// </summary>  
        public static string Google = "GoogleTanslater";  
        /// <summary>  
        /// Bing  
        /// </summary>  
        public static string Bing = "MircsoftTanslater";  
    }  
    /// <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_PostMethod(sourceText, fromLanguage, toLanguage);//"zh-cn", "en";  
                    break;  
            }  
            return translateStr;  
        }  
        #region Google 翻译： Get方式获取翻译  
        /// <summary>  
        /// Google 翻译： Get方式获取翻译  
        /// </summary>  
        /// <param name="sourceText"></param>  
        /// <param name="fromType"></param>  
        /// <param name="toType"></param>  
        /// <returns></returns>  
        private static string GoogleTranslater_GetMethod(string sourceText, string fromType, string toType)  
        {  
            string result;  
            string langPair = fromType.ToLower() == "zh-cn" ? "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;  
        }  
        #endregion  
        #region Google 翻译： Post方式获取翻译  
        /// <summary>  
        /// Google 翻译： Post方式获取翻译  
        /// </summary>  
        /// <param name="sourceText"></param>  
        /// <param name="fromType"></param>  
        /// <param name="toType"></param>  
        /// <returns></returns>  
        private static string GoogleTranslater_PostMethod(string sourceText, string fromType, string toType)  
        {  
            string fromLan = fromType.ToLower() == "zh-cn" ? "zh" : "en";  
            string toLan = toType.ToLower() == "zh-cn" ? "zh" : "en";  
            HttpWebRequest requestScore = (HttpWebRequest)WebRequest.Create("http://translate.google.com/translate_t#");  
            StringBuilder postContent = new StringBuilder();  
            Encoding myEncoding = Encoding.UTF8;  
            postContent.Append(HttpUtility.UrlEncode("hl", myEncoding));  
            postContent.Append("=");  
            postContent.Append(HttpUtility.UrlEncode("en", myEncoding));  
            postContent.Append("&");  
            postContent.Append(HttpUtility.UrlEncode("ie", myEncoding));  
            postContent.Append("=");  
            postContent.Append(HttpUtility.UrlEncode("UTF-8", myEncoding));  
            postContent.Append("&");  
            postContent.Append(HttpUtility.UrlEncode("sl", myEncoding));  
            postContent.Append("=");  
            postContent.Append(HttpUtility.UrlEncode(fromLan, myEncoding));  
            postContent.Append("&");  
            postContent.Append(HttpUtility.UrlEncode("text", myEncoding));  
            postContent.Append("=");  
            postContent.Append(HttpUtility.UrlEncode(sourceText, myEncoding));  
            postContent.Append("&");  
            postContent.Append(HttpUtility.UrlEncode("tl", myEncoding));  
            postContent.Append("=");  
            postContent.Append(HttpUtility.UrlEncode(toLan, myEncoding));  
  
            byte[] data = Encoding.ASCII.GetBytes(postContent.ToString());  
            requestScore.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; SV1; .NET CLR 1.1.4322; .NET CLR 2.0.50727)";  
            requestScore.Method = "Post";  
            //requestScore.ContentType = "application/x-www-form-urlencoded;charset=gb2312";  
            requestScore.ContentLength = data.Length;  
            requestScore.KeepAlive = true;  
            requestScore.Timeout = (6 * 60 * 1000);  
            requestScore.ProtocolVersion = HttpVersion.Version10;  
  
            Stream stream = requestScore.GetRequestStream();  
            stream.Write(data, 0, data.Length);  
            stream.Close();  
            string content = string.Empty;  
            try  
            {  
                System.Net.ServicePointManager.Expect100Continue = false;  
                HttpWebResponse responseSorce = (HttpWebResponse)requestScore.GetResponse();  
                StreamReader reader = new StreamReader(responseSorce.GetResponseStream());  
                content = reader.ReadToEnd();  
                responseSorce.Close();  
                reader.Dispose();  
                stream.Dispose();  
            }  
            catch (WebException ex)  
            {  
                HttpWebResponse responseSorce = (HttpWebResponse)ex.Response;//得到请求网站的详细错误提示  
                StreamReader reader = new StreamReader(responseSorce.GetResponseStream());  
                content = reader.ReadToEnd();  
                responseSorce.Close();  
                reader.Dispose();  
                stream.Dispose();  
            }  
            finally  
            {  
                requestScore.Abort();  
            }  
            string reg = @"<(?<HtmlTag>[\w]+)[^>]*\s[iI][dD]=(?<Quote>[""']?)result_box(?(Quote)\k<Quote>)[""']?[^>]*>((?<Nested><\k<HtmlTag>[^>]*>)|</\k<HtmlTag>>(?<-Nested>)|.*?)*</\k<HtmlTag>>";  
            //string reg = @"<(span) id=result_box [^>]*>.*?</\1>";//匹配出翻译内容  
            Regex r = new Regex(reg);  
            MatchCollection mcItem = r.Matches(content);  
            string result = ConvertHtmlToText(mcItem[0].Value);  
            return result;  
        }  
        /// <summary>  
        /// 将HTML转换为纯文本  
        /// </summary>  
        /// <param name="source"></param>  
        /// <returns></returns>  
        public static string ConvertHtmlToText(string source)  
        {  
            // 代码的实现的思路是：  
            //a、先将html文本中的所有空格、换行符去掉（因为html中的空格和换行是被忽略的）  
            //b、将<head>标记中的所有内容去掉  
            //c、将<script>标记中的所有内容去掉  
            //d、将<style>标记中的所有内容去掉  
            //e、将td换成空格，tr,li,br,p 等标记换成换行符  
            //f、去掉所有以“<>”符号为头尾的标记去掉。  
            //g、转换&，&nbps;等转义字符换成相应的符号  
            //h、去掉多余的空格和空行  
            string result;  
            //remove line breaks,tabs  
            result = source.Replace("\r", " ");  
            result = result.Replace("\n", " ");  
            result = result.Replace("\t", " ");  
            //remove the header  
            result = Regex.Replace(result, "(<head>).*(</head>)", string.Empty, RegexOptions.IgnoreCase);  
            result = Regex.Replace(result, @"<( )*script([^>])*>", "<script>", RegexOptions.IgnoreCase);  
            result = Regex.Replace(result, @"(<script>).*(</script>)", string.Empty, RegexOptions.IgnoreCase);  
            //remove all styles  
            result = Regex.Replace(result, @"<( )*style([^>])*>", "<style>", RegexOptions.IgnoreCase); //clearing attributes  
            result = Regex.Replace(result, "(<style>).*(</style>)", string.Empty, RegexOptions.IgnoreCase);  
            //insert tabs in spaces of <td> tags  
            result = Regex.Replace(result, @"<( )*td([^>])*>", " ", RegexOptions.IgnoreCase);  
            //insert line breaks in places of  and <li> tags  
            result = Regex.Replace(result, @"<( )*br( )*>", "\r", RegexOptions.IgnoreCase);  
            result = Regex.Replace(result, @"<( )*li( )*>", "\r", RegexOptions.IgnoreCase);  
            //insert line paragraphs in places of <tr> and  tags  
            result = Regex.Replace(result, @"<( )*tr([^>])*>", "\r\r", RegexOptions.IgnoreCase);  
            result = Regex.Replace(result, @"<( )*p([^>])*>", "\r\r", RegexOptions.IgnoreCase);  
            //remove anything thats enclosed inside < >  
            result = Regex.Replace(result, @"<[^>]*>", string.Empty, RegexOptions.IgnoreCase);  
            //replace special characters:  
            result = Regex.Replace(result, @"&", "&", RegexOptions.IgnoreCase);  
            result = Regex.Replace(result, @" ", " ", RegexOptions.IgnoreCase);  
            result = Regex.Replace(result, @"<", "<", RegexOptions.IgnoreCase);  
            result = Regex.Replace(result, @">", ">", RegexOptions.IgnoreCase);  
            result = Regex.Replace(result, @"&(.{2,6});", string.Empty, RegexOptions.IgnoreCase);  
            //remove extra line breaks and tabs  
            result = Regex.Replace(result, @" ( )+", " ");  
            result = Regex.Replace(result, "(\r)( )+(\r)", "\r\r");  
            result = Regex.Replace(result, @"(\r\r)+", "\r\n");  
            return result;  
        }  
        #endregion  
        #region 微软翻译  
        /// <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;  
        }  
        #endregion  
    }  
    /// <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; }  
    }  
}
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