Asp.NET调用百度翻译的方法

本文实例讲述了Asp.NET调用百度翻译的方法。分享给大家供大家参考。具体分析如下：

Asp.NET调用百度翻译，如下图所示：

Asp.NET调用百度翻译的方法

HTML代码如下:

	<%@ 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#代码如下:

复制代码代码如下:

	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";  

	        }  

	    }  

	}