调用google翻译api出现URL超长的问题？？？

ndscwsy 2010-06-02 11:32:40



 /// <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。

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南平 2012-12-17

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可以用 post 请求

清山博客 2011-09-03

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

dingli321 2010-06-03

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google限制了上传字符长度，需在5000字符以内

ndscwsy 2010-06-02

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求助啊，顶一下自己

ndscwsy 2010-06-02

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[Quote=引用 2 楼 computerfox 的回复:]
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？
[/Quote]
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

ndscwsy 2010-06-02

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[Quote=引用 1 楼 liuqian4243 的回复:]
太长了，改变提交方式，或分隔后多次提交
[/Quote]
很久不写代码了，那改成那种提交方式，分隔肯定不行，会影响翻译效果

捷哥1999 2010-06-02

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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？

Ny-6000 2010-06-02

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太长了，改变提交方式，或分隔后多次提交

ndscwsy 2010-06-02

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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;

        }

ndscwsy 2010-06-02

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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

Harvey_He 2010-06-02

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

kimmking 2010-06-02

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ie中规定的url长度不得超过2083

超长还是post吧

wuyq11 2010-06-02

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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";