Asp.NET调用百度翻译

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Asp.NET调用百度翻译，图示：

HTML:

<%@ Page Language="C#" AutoEventWireup="true" CodeFile="baidu.aspx.cs" Inherits="FanYi_baidu" %><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<title>OA翻译</title>
</head>
<body>
<form id="form1" runat="server">
<div>
<asp:TextBox ID="sourceWord" runat="server" Columns="50" Rows="15" style="width:100%;"
TextMode="MultiLine"></asp:TextBox>
<br />
源语言：<asp:DropDownList ID="ddlFrom" runat="server">
<asp:ListItem Value="auto">自动检测</asp:ListItem>
<asp:ListItem Value="zh">中文</asp:ListItem>
<asp:ListItem Value="en">英文</asp:ListItem>
<asp:ListItem Value="jp">日文</asp:ListItem>
</asp:DropDownList>
目标语言：<asp:DropDownList ID="ddlTo" runat="server">
<asp:ListItem Value="auto">自动检测</asp:ListItem>
<asp:ListItem Value="zh">中文</asp:ListItem>
<asp:ListItem Value="en">英文</asp:ListItem>
<asp:ListItem Value="jp">日文</asp:ListItem>
</asp:DropDownList>
<asp:Button ID="Translate"
runat="server" Text="翻译" onclick="Translate_Click" />
<br />
<asp:TextBox ID="resultText" runat="server" TextMode="MultiLine" Rows="15" Columns="50" style="width:100%;"></asp:TextBox>
</div>
</form>
</body>
</html>

C#:

using System;
using System.Collections.Generic;
using System.IO;
using System.Net;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Json;
using System.Text;
using System.Web;public partial class FanYi_baidu : System.Web.UI.Page
{
string url = @"http://openapi.baidu.com/public/2.0/bmt/translate";
string requestDetail = "client_id=申请的ID";
protected void Page_Load(object sender, EventArgs e)
{ }
[DataContract]
public class AdmAccessToken
{
[DataMember]
public string from { get; set; }
[DataMember]
public string to { get; set; }
[DataMember]
public string error_code { get; set; }
[DataMember]
public string error_msg { get; set; }
[DataMember]
public string query { get; set; }
[DataMember]
public List<TokenResult> trans_result { get; set; }
} [DataContract]
public class TokenResult
{
[DataMember]
public string src { get; set; }
[DataMember]
public string dst { get; set; }
} //百度翻译返回数据结构
//{
//"from": "en",
//"to": "zh",
//"trans_result": [
// {
// "src": "today",
// "dst": "今天"
// },
// {
// "src": "tomorrow",
// "dst": "明天"
// }
//],
//"error_code": "52001",
//"error_msg": "TIMEOUT",
//"query": "he's"
//} /// <summary>
/// 采用Post方式提交数据
/// </summary>
/// <param name="DatamarketAccessUri">目标网址</param>
/// <param name="requestDetails">参数字符串</param>
/// <returns></returns>
private AdmAccessToken HttpPost(string DatamarketAccessUri, string requestDetails)
{
//Prepare OAuth request
WebRequest webRequest = WebRequest.Create(DatamarketAccessUri);
webRequest.ContentType = "application/x-www-form-urlencoded";
webRequest.Method = "POST";
byte[] bytes = Encoding.ASCII.GetBytes(requestDetails);
webRequest.ContentLength = bytes.Length;
using (Stream outputStream = webRequest.GetRequestStream())
{
outputStream.Write(bytes, 0, bytes.Length);
}
using (WebResponse webResponse = webRequest.GetResponse())
{
DataContractJsonSerializer serializer = new DataContractJsonSerializer(typeof(AdmAccessToken));
//Get deserialized object from JSON stream
AdmAccessToken token = (AdmAccessToken)serializer.ReadObject(webResponse.GetResponseStream());
return token;
}
} protected void Translate_Click(object sender, EventArgs e)
{
resultText.Text = "";
if (sourceWord.Text.Trim() != "")
{
string requestStr = requestDetail + "&from=" + ddlFrom.SelectedValue
+ "&to=" + ddlTo.SelectedValue
+ "&q=" + HttpUtility.UrlEncode(sourceWord.Text); AdmAccessToken token = HttpPost(url, requestStr);
if (token.error_code != null)
{
resultText.Text = token.error_msg;
}
else
{
int n = token.trans_result.Count;
for (int i = 0; i < n; i++)
{
resultText.Text += token.trans_result[i].dst + (i < n-1 ? "\n" : "");
}
}
}
else
{
resultText.Text = "请输入要翻译的内容";
}
}
}