csharp:百度翻译

/// <summary>
/// 涂聚文
/// </summary>
public partial class Form5 : Form
{
TranClass tranClass = new TranClass();
string url = "";
string youAPI_Id = "geovindu";
/// <summary>
///
/// </summary>
/// <returns></returns>
DataTable setLanguage()
{

DataTable dt = new DataTable();
dt.Columns.Add("id", typeof(int));
dt.Columns.Add("name", typeof(string));
dt.Rows.Add(1, "中文--英文");
dt.Rows.Add(2, "英文--中文");
dt.Rows.Add(3, "中文--日文");
dt.Rows.Add(4, "日文--中文");
dt.Rows.Add(5, "中文--韩文");
dt.Rows.Add(6, "韩文--中文");
dt.Rows.Add(7, "西班牙文--中文");
dt.Rows.Add(8, "中文--西班牙文");
return dt;

}
/// <summary>
///
/// </summary>
public Form5()
{
InitializeComponent();
}
/// <summary>
///
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void Form5_Load(object sender, EventArgs e)
{
this.cbxTranslateChange.DataSource = setLanguage();
this.cbxTranslateChange.ValueMember = "id";
this.cbxTranslateChange.DisplayMember = "name";

}
/// <summary>
/// 翻译
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void button1_Click(object sender, EventArgs e)
{
WebClient client = new WebClient();  //引用System.Net
string fromTranslate = tbxFromContent.Text; //翻译前的内容
if (!string.IsNullOrEmpty(fromTranslate))
{
//client_id为自己的api_id，q为翻译对象，from为翻译语言，to为翻译后语言
string url = string.Format("http://openapi.baidu.com/public/2.0/bmt/translate?client_id={0}&q={1}&from={2}&to={3}", youAPI_Id, fromTranslate, tranClass.From, tranClass.To);
var buffer = client.DownloadData(url);
string result = Encoding.UTF8.GetString(buffer);
StringReader sr = new StringReader(result);
JsonTextReader jsonReader = new JsonTextReader(sr); //引用Newtonsoft.Json 自带
JsonSerializer serializer = new JsonSerializer();
var r = serializer.Deserialize<TranClass>(jsonReader); //因为获取后的为json对象 ，实行转换
tbxToContent.Text = r.Trans_result[0].dst;  //dst为翻译后的值
}
}
/// <summary>
///
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void cbxTranslateChange_SelectedIndexChanged(object sender, EventArgs e)
{
ComboBox comboBox = sender as ComboBox;
switch (comboBox.SelectedIndex)
{
case 1:
tranClass.From = "zh";
tranClass.To = "en";
break;
case 2:
tranClass.From = "en";
tranClass.To = "zh";
break;
case 3:
tranClass.From = "zh";
tranClass.To = "jp";
break;
case 4:
tranClass.From = "jp";
tranClass.To = "zh";
break;
case 5:
tranClass.From = "zh";
tranClass.To = "kor";
break;
case 6:
tranClass.From = "kor";
tranClass.To = "zh";
break;
case 7:
tranClass.From = "zh";
tranClass.To = "spa";
break;
case 8:
tranClass.From = "spa";
tranClass.To = "zh";
break;
default:
tranClass.From = "auto";
tranClass.To = "auto";
break;

}
}

}

public class TranClass
{
public string From { get; set; }
public string To { get; set; }
public List<Trans_result> Trans_result { get; set; }
}
public class Trans_result
{
public string src { get; set; }
public string dst { get; set; }
}

/*

语言简写   名称
auto    自动检测
zh  中文
en  英语
yue 粤语
wyw 文言文
jp  日语
kor 韩语
fra 法语
spa 西班牙语
th  泰语
ara 阿拉伯语
ru  俄语
pt  葡萄牙语
de  德语
it  意大利语
el  希腊语
nl  荷兰语
pl  波兰语
bul 保加利亚语
est 爱沙尼亚语
dan 丹麦语
fin 芬兰语
cs  捷克语
rom 罗马尼亚语
slo 斯洛文尼亚语
swe 瑞典语
hu  匈牙利语
cht 繁体中文
*/
}

TranClass tranClass = new TranClass();
string url = "www.dusystem.com";
string youAPI_Id = "geovindu";
/// <summary>
/// 涂聚文
/// </summary>
/// <returns></returns>
DataTable setLanguage()
{

DataTable dt = new DataTable();
dt.Columns.Add("id", typeof(int));
dt.Columns.Add("name", typeof(string));
dt.Rows.Add(1, "中文--英文");
dt.Rows.Add(2, "英文--中文");
dt.Rows.Add(3, "中文--日文");
dt.Rows.Add(4, "日文--中文");
dt.Rows.Add(5, "中文--韩文");
dt.Rows.Add(6, "韩文--中文");
dt.Rows.Add(7, "西班牙文--中文");
dt.Rows.Add(8, "中文--西班牙文");
return dt;

}
/// <summary>
///
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
this.DropDownList1.DataSource = setLanguage();
this.DropDownList1.DataTextField = "name";
this.DropDownList1.DataValueField = "id";
this.DropDownList1.DataBind();
//DropDownList1.SelectedIndex = 0;
}
}
/// <summary>
///
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void Button1_Click(object sender, EventArgs e)
{
int k = int.Parse(DropDownList1.SelectedValue);
switch (k)
{
case 1:
tranClass.From = "zh";
tranClass.To = "en";
break;
case 2:
tranClass.From = "en";
tranClass.To = "zh";
break;
case 3:
tranClass.From = "zh";
tranClass.To = "jp";
break;
case 4:
tranClass.From = "jp";
tranClass.To = "zh";
break;
case 5:
tranClass.From = "zh";
tranClass.To = "kor";
break;
case 6:
tranClass.From = "kor";
tranClass.To = "zh";
break;
case 7:
tranClass.From = "zh";
tranClass.To = "spa";
break;
case 8:
tranClass.From = "spa";
tranClass.To = "zh";
break;
default:
tranClass.From = "auto";
tranClass.To = "auto";
break;

}

WebClient client = new WebClient();  //引用System.Net
string fromTranslate = this.TextBox1.Text; //翻译前的内容

if (object.Equals(tranClass, null))
{
tranClass.From = "zh";
tranClass.To = "en";
}

if (!string.IsNullOrEmpty(fromTranslate))
{
//client_id为自己的api_id，q为翻译对象，from为翻译语言，to为翻译后语言
string url = string.Format("http://openapi.baidu.com/public/2.0/bmt/translate?client_id={0}&q={1}&from={2}&to={3}", youAPI_Id, fromTranslate, tranClass.From, tranClass.To);
var buffer = client.DownloadData(url);
string result = Encoding.UTF8.GetString(buffer);
StringReader sr = new StringReader(result);
JsonTextReader jsonReader = new JsonTextReader(sr); //引用Newtonsoft.Json 自带
while (jsonReader.Read())
{
//Response.Write(jsonReader.Value.ToString() + "<br/>");//jsonReader.TokenType.ToString() + "" + jsonReader.ValueType.ToString() + "" +
}
Response.Write(CallInterface(fromTranslate, tranClass.From, tranClass.To));
var j = JsonConvert.DeserializeObject<TranClass>(result);

//JsonSerializer serializer = new JsonSerializer();

//TranClass p1 = (TranClass)serializer.Deserialize(new JsonTextReader(sr), typeof(TranClass));
//TranClass r = serializer.Deserialize<TranClass>(jsonReader); //因为获取后的为json对象 ，实行转换  反序列化 错误
//this.TextBox2.Text = r.Trans_result[0].dst;  //dst为翻译后的值
if (!object.Equals(j, null))
{
this.TextBox2.Text = j.Trans_result[0].dst;
}
}
}

/// <summary>
///
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{

switch (DropDownList1.SelectedIndex)
{
case 0:
tranClass.From = "zh";
tranClass.To = "en";
break;
case 1:
tranClass.From = "en";
tranClass.To = "zh";
break;
case 2:
tranClass.From = "zh";
tranClass.To = "jp";
break;
case 3:
tranClass.From = "jp";
tranClass.To = "zh";
break;
case 4:
tranClass.From = "zh";
tranClass.To = "kor";
break;
case 5:
tranClass.From = "kor";
tranClass.To = "zh";
break;
case 6:
tranClass.From = "zh";
tranClass.To = "spa";
break;
case 7:
tranClass.From = "spa";
tranClass.To = "zh";
break;
default:
tranClass.From = "auto";
tranClass.To = "auto";
break;

}
}
/// <summary>
/// 请求百度接口
///
/// https://github.com/lbv/litjson /// </summary>
/// <param name="sub">要翻译的文本</param>
/// <param name="from">from语言</param>
/// <param name="to">翻译为语言</param>
/// <returns></returns>
private string CallInterface(string sub, string from, string to)
{

HttpContext.Current.Application.Lock();
if (HttpContext.Current.Application["baidu"] == null)
{
HttpContext.Current.Application["baidu"] = 1;
}
else
{
HttpContext.Current.Application["baidu"] = (int)HttpContext.Current.Application["baidu"] + 1;
}
HttpContext.Current.Application.UnLock();
string url = string.Format("http://openapi.baidu.com/public/2.0/bmt/translate?client_id={0}&q={1}&from={2}&to={3}", youAPI_Id, sub, from, to);
string down = "", result = "";
try
{
WebClient wc = new WebClient();
down = wc.DownloadString(url);
}
catch (Exception)
{

}
JsonData jd = JsonMapper.ToObject(down);
if (JsonDataContainsKey(jd, "error_code"))
{
result += sub;
}
else
{
JsonData jdResult = jd["trans_result"];
for (int j = 0; j < jdResult.Count; j++)
{
JsonData jdDst = jdResult[j]["dst"];
result += jdDst.ToString();
}
}
return result;
}
/// <summary>
///
/// </summary>
/// <param name="data"></param>
/// <param name="key"></param>
/// <returns></returns>
public bool JsonDataContainsKey(JsonData data, string key)
{
bool result = false;
if (data == null)
return result;
if (!data.IsObject)
{
return result;
}
IDictionary tdictionary = data as IDictionary;
if (tdictionary == null)
return result;
if (tdictionary.Contains(key))
{
result = true;
}
return result;
}

}

/// <summary>
///
/// </summary>
public class TranClass
{
public string From { get; set; }
public string To { get; set; }
public List<Trans_result> Trans_result { get; set; }
}
/// <summary>
///
/// </summary>
public class Trans_result
{
/// <summary>
/// 原文
/// </summary>
public string src { get; set; }
/// <summary>
/// 翻译后的值
/// </summary>
public string dst { get; set; }
}

/*
{"from":"zh","to":"en","trans_result":[{"src":"\u4e2d\u56fd","dst":"China"}]}
*/
}