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Asp.NET调用百度翻译的方法

2015-03-27  来源:新网巢  我有话说  收藏本文

 这篇文章主要介绍了Asp.NET调用百度翻译的方法,是针对百度接口开发的经典实用技巧,非常具有实用价值,需要的朋友可以参考下。

Asp.NET调用百度翻译,如下图所示:

Asp.NET调用百度翻译

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:

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";  
        }  
    }  
}
(责编:xie)
关键词: 百度翻译
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