调用google翻译api出现URL超长的问题？？？

Question

 /// <summary> 
        /// 使用WebRequest获取Google翻译后的内容 
        /// </summary> 
        /// <param name="strTranslateString">需要翻译的内容</param> 
        /// <param name="strRequestLanguage">原文语种</param> 
        /// <param name="strResultLanguage">译文语种</param> 
        /// <returns></returns> 
        private string GetGoogleTranslateJSONString(string strTranslateString,string strRequestLanguage, string strResultLanguage)
        {
            string url = "http://ajax.googleapis.com/ajax/services/language/translate?v=1.0&q=";
            WebRequest request = HttpWebRequest.Create(url + strTranslateString + "&langpair=" + strRequestLanguage + "%7C" + strResultLanguage);
            request.Credentials = CredentialCache.DefaultCredentials;
            HttpWebResponse response = (HttpWebResponse)request.GetResponse();//这句出错
            Stream dataStream = response.GetResponseStream();
            StreamReader reader = new StreamReader(dataStream);
            string responseFromServer = reader.ReadToEnd();
            reader.Close();
            dataStream.Close();
            response.Close();
            return responseFromServer;
        }这是我摘抄的一段代码，strTranslateString这个是待翻译内容，但是这个字段过长的话，服务器会报414错误，也就是说URL过长，请问各位兄弟怎么解决的，我现在做一个小程序，需要把数据库里字段翻译成中文，但是这个字段太长，以上这个方法翻译短的没问题，谢谢各位了，救急啊。

Answer 1

你试试看在网页中用google翻译时，如果输入字符很长，没有报错的情况下，google是不是在url上做了处理？加入了什么其他的关键字？

Answer 2

和关键字没有关系，是不是和提交方式有关系，get不行，要用POST

Answer 3

HttpWebRequest 通过post传值
byte[]  data = encoding.GetBytes("");
HttpWebRequest myRequest =(HttpWebRequest)WebRequest.Create("");
myRequest.Method = "POST";
myRequest.ContentType="application/x-www-form-urlencoded";

Answer 4

ie中规定的url长度不得超过2083超长还是post吧

Answer 5

http://topic.csdn.net/u/20090702/16/bfa71dfb-dbe5-477f-b372-003893edbf60.html

Answer 6

string payload ="v=1.0&q=" + strTranslateString + "&langpair=" + strRequestLanguage + "%7C" + strResultLanguage;
            string str_return = string.Empty;
            WebRequest req = WebRequest.Create("http://ajax.googleapis.com/ajax/services/language/translate?");
            req.Credentials = CredentialCache.DefaultCredentials;
            req.Method = "POST";
            req.ContentType = "application/x-www-form-urlencoded";
            req.Timeout = 10000;
            req.ContentLength = payload.Length;
            Encoding encoding = Encoding.GetEncoding("UTF-8");
            Byte[] bytes = encoding.GetBytes(payload);
            req.ContentLength = bytes.Length;
            Stream newStream = req.GetRequestStream();
            newStream.Write(bytes, 0, bytes.Length);
            newStream.Close();
            HttpWebResponse res = (HttpWebResponse)req.GetResponse();
            if (res.StatusDescription == "ok")
            {
                Console.WriteLine("暂时无法连接到网站");
                Console.ReadKey();
            }
            Stream dataStream = res.GetResponseStream();
            StreamReader reader = new StreamReader(dataStream);
            string responseFromServer = reader.ReadToEnd();
            str_return = responseFromServer;
            reader.Close();
            dataStream.Close();
            res.Close();            return str_return;我已经改成POST方式了，但是长的翻译内容还是返回不对的JSON，奇怪啊

Answer 7

上面的代码返回了一个错误的JSON，错误时字符长长度超长，看来只能换一种方法了，大家看看我这种方法写的如何，但是取不到翻译内容// <summary>
        /// 翻译
        /// </summary>
        /// <param name="texts">需要翻译的内容</param>
        /// <param name="languages">翻译语种</param>
        /// <returns></returns>
        private string china_to_english(string texts, string languages)
        {
            string payload = "hl=zh-CN&ie=UTF8&text=" +texts+ "&langpair=" +languages;
            string s = "http://translate.google.com/translate_t" + payload;
            string str_return = string.Empty;
            WebRequest req = WebRequest.Create("http://translate.google.com/translate_t");
            req.Credentials = CredentialCache.DefaultCredentials;
            req.Method = "POST";
            req.ContentType = "application/x-www-form-urlencoded";
            req.Timeout = 10000;
            req.ContentLength = payload.Length;
            Encoding encoding = Encoding.GetEncoding("UTF-8");
            Byte[] bytes = encoding.GetBytes(payload);
            req.ContentLength = bytes.Length;
            Stream newStream = req.GetRequestStream();
            newStream.Write(bytes, 0, bytes.Length);
            newStream.Close();
            HttpWebResponse res = (HttpWebResponse)req.GetResponse();
            if (res.StatusDescription == "ok")
            {
                Console.WriteLine("暂时无法连接到网站");
                Console.ReadKey();
            }
            Stream dataStream = res.GetResponseStream();
            StreamReader reader = new StreamReader(dataStream);
            string responseFromServer = reader.ReadToEnd();
            str_return = responseFromServer;
            reader.Close();
            dataStream.Close();
            res.Close();            //str_return.Replace("?i:(.+)(\<div)(.+)(\>)(.+)(\<\/div\>)(.+))","$5");
            str_return = GetStrFiltrateYH(str_return);
            str_return.Substring(3);
            return str_return;
        }

Answer 8

google限制了上传字符长度，需在5000字符以内

Answer 9

参考这里：http://blog.csdn.net/a497785609/article/details/6666994

Answer 10

可以 用 post 请求