接入接口前首先需要申请应用ID和应用秘钥，登录有道智云AI开放平台，创建应用，获取应用ID和秘钥。
定义接口响应类数据结构，接口实际返回内容和官方文档有点出入，大概是文档未更新吧。以下是官方文档给出的说明：
以下是本人测试获取到的响应结构：
定义该数据结构：
代码语言：javascript复制[Serializable]
public class Response
{
/// <summary>
/// 单词校验后的结果 主要校验字母大小写、单词前含符号、中文简繁体
/// </summary>
public string[] returnPhrase;
public string query;
/// <summary>
/// 错误返回码
/// </summary>
public string errorCode;
/// <summary>
/// 源语言和目标语言
/// </summary>
public string l;
/// <summary>
/// 翻译结果发音地址
/// </summary>
public string tSpeakUrl;
/// <summary>
/// 网络释义 不一定存在
/// </summary>
public Web[] web;
public string requestId;
/// <summary>
/// 翻译结果
/// </summary>
public string[] translation;
public URL dict;
public URL webdict;
/// <summary>
/// 词义
/// </summary>
public Basic basic;
public bool isWord;
/// <summary>
/// 源语言发音地址
/// </summary>
public string speakUrl;
}
[Serializable]
public class Web
{
public string key;
public string[] value;
}
[Serializable]
public class URL
{
public string url;
}
[Serializable]
public class Basic
{
public string phonetic;
public string[] explains;
}封装接口：
代码语言：javascript复制public class YoudaoTranslator
{
//应用ID和应用秘钥 通过在平台创建应用获取
private static readonly string appKey = "**********";
private static readonly string appSecret = "********************";
/// <summary>
/// 将英文翻译为中文
/// </summary>
/// <param name="content">待翻译的文本</param>
/// <param name="callback">回调函数</param>
public static void EnglishToChinese(string content, Action<string> callback)
{
Translate(content, "en", "zh-CHS", callback);
}
/// <summary>
/// 将中文翻译为英文
/// </summary>
/// <param name="content">待翻译的文本</param>
/// <param name="callback">回调函数</param>
public static void ChineseToEnglish(string content, Action<string> callback)
{
Translate(content, "zh-CHS", "en", callback);
}
/// <summary>
/// 翻译
/// 中文zh-CHS 英文en 日文ja 韩文ko 法文fr 德文de 俄文ru
/// 其它语言查阅官方文档
/// </summary>
/// <param name="content">待翻译的文本</param>
/// <param name="from">源语言</param>
/// <param name="to">目标语言</param>
/// <param name="callback">回调函数</param>
public static void Translate(string content, string from, string to, Action<string> callback)
{
HttpWebRequest request = (HttpWebRequest)WebRequest.Create("https://openapi.youdao.com/api");
request.Method = "POST";
request.ContentType = "application/x-www-form-urlencoded";
//当前UTC时间戳（秒）
string curtime = ((long)(DateTime.UtcNow - new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc)).TotalMilliseconds / 1000).ToString();
//UUID 唯一通用识别码
string salt = DateTime.Now.Millisecond.ToString();
string input = content == null ? null : content.Length <= 20 ? content : (content.Substring(0, 10) content.Length content.Substring(content.Length - 10, 10));
byte[] inputBytes = Encoding.UTF8.GetBytes(appKey input salt curtime appSecret);
byte[] hashedBytes = new SHA256CryptoServiceProvider().ComputeHash(inputBytes);
//签名 sha256(应用ID input salt curtime 应用秘钥)
//其中input的计算方式为：input=content前10个字符 content长度 cotent后10个字符（当cotent长度大于20）或 input=content字符串（当content长度小于等于20）
string sign = BitConverter.ToString(hashedBytes).Replace("-", "");
//签名类型
string signType = "v3";
//参数列表
string args = string.Format("from={0}&to={1}&signType={2}&curtime={3}&q={4}&appKey={5}&salt={6}&sign={7}",
from, to, signType, curtime, content, appKey, salt, sign);
byte[] data = Encoding.UTF8.GetBytes(args);
request.ContentLength = data.Length;
using (Stream reqStream = request.GetRequestStream())
{
reqStream.Write(data, 0, data.Length);
reqStream.Close();
}
HttpWebResponse httpWebResponse = (HttpWebResponse)request.GetResponse();
Stream stream = httpWebResponse.GetResponseStream();
using (StreamReader reader = new StreamReader(stream, Encoding.UTF8))
{
string responseStr = reader.ReadToEnd();
//Debug.Log(responseStr);
//反序列化
var response = JsonUtility.FromJson<Response>(responseStr);
int errorCode = int.Parse(response.errorCode);
switch (errorCode)
{
case 0: if (response.translation.Length > 0) callback.Invoke(response.translation[0]); break;
case 102: Debug.LogError($"不支持的语言类型"); break;
case 103: Debug.LogError($"翻译文本过长"); break;
case 108: Debug.LogError($"应用ID无效 注册账号登录后台创建应用和实例并完成绑定 可获得应用ID和应用密钥等信息"); break;
case 113: Debug.LogError($"待翻译文本不能为空"); break;
//其它错误代码含义查阅官方文档
default: Debug.LogError($"翻译失败 错误代码[{errorCode}]"); break;
}
}
}
}测试：
代码语言：javascript复制public class Foo : MonoBehaviour
{
private void Start()
{
YoudaoTranslator.EnglishToChinese("Hello everyone.", s => Debug.Log(s));
YoudaoTranslator.ChineseToEnglish("测试", s => Debug.Log(s));
}
}
你学废(hui)了吗
