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C # is based on Baidu AI how to achieve machine translation function, in view of this problem, this article introduces the corresponding analysis and answer in detail, hoping to help more partners who want to solve this problem to find a more simple and feasible method.

With the development of the "Belt and Road Initiative" policy, various projects have come, and the language barrier has become a pain point.

As developers, I believe you are no stranger to translation. Baidu Translation, youdao Dictionary, Google Translation and so on have been used more or less (Chinese-English, Chinese-Japanese, Chinese-Russian, etc.).

We are now based on Baidu Ai open platform for machine translation, demo uses the C# console application, later if necessary can be grafted into the designated project to use.

1. Sign up for Baidu account api and create your own Api application

Registered address: https://login.bce.baidu.com/

After registering and logging in, find the machine translation under the "Product Services" menu, and click to enter, as shown below:

Note that we need to collect the free resources first, and then decide whether to pay according to the later needs after the development is completed, as shown below:

After receiving it, create our Api application, as shown below (mainly Api Key and Secret Key):

2. Create a vs console application

Create a VS console application named TranslateProject.

.net Framework/.NET Core, or even Web applications, because this is an Api operation.

3. Write a program and debug the post request tool class

Create a http request interface help class (WebRequest method API request method (Post/Get)) and name it HttpTool (custom naming). You can find one online, or use the following:

/ post request method / request path / the value passed in is {city: "Shanghai" City2: "Chongqing"} / public string HttpPost (string url, string parms, string token,string ContentType= "application/json") {string result = string.Empty Try {if (url.StartsWith ("https:")) {/ / to call the API interface of https, be sure to add the phrase ServicePointManager.SecurityProtocol = (SecurityProtocolType) 3072;} Encoding encoding = Encoding.UTF8 / / translate code HttpWebRequest request = (HttpWebRequest) WebRequest.Create (url); / / create request.Method = "POST"; / / configure some standard parameters of post request request.Accept = "text/html,application/xhtml+xml,application/xml;q=0.9,image/webp,*/*;q=0.8"; request.ContentType = ContentType / / Custom premium content if (! string.IsNullOrEmpty (token)) {request.Headers.Add (HttpRequestHeader.Authorization, token); / / add token} byte [] buffer = encoding.GetBytes (parms) / / the input value is formatted as a recognized request.ContentLength = buffer.Length; / / post passing value parameter standard request.GetRequestStream (). Write (buffer, 0, buffer.Length); HttpWebResponse response = (HttpWebResponse) request.GetResponse () / / try to get the return message using of the URL to be requested (StreamReader reader = new StreamReader (response.GetResponseStream (), Encoding.UTF8)) {result = reader.ReadToEnd ();}} catch (Exception ex) {result = "" } return result;} text Translation-Universal version

General version of API documentation: https://cloud.baidu.com/doc/MT/s/4kqryjku9

Just look at the document directly. I'll show the code here, and you can copy it and execute it.

The code and display are as follows:

Using Newtonsoft.Json;using System;using System.Collections.Generic;using System.Linq;using System.Net.Http;using System.Text;using System.Threading.Tasks;namespace TranslateProject {class Program {/ / API Key for activating corresponding service applications in Baidu Cloud is recommended to activate multiple services (AK of Baidu Cloud applications) private static String clientId = "qNldYXXtIr2pKBQsv242369Y" / / Secret Key of the corresponding service application activated in Baidu Cloud (SK of Baidu Cloud Application) private static String clientSecret = "L6gemOD3pM2PmafyQUBnXpCGEemk18mR" Static void Main (string [] args) {try {# region text Translation-Universal version / / get Token: for more information, please see https://ai.baidu.com/ai-doc/REFERENCE/Ck3dwjhhu string TokenJson = getAccessToken () If (! string.IsNullOrEmpty (TokenJson)) {AccessToken TokenEntity = JsonConvert.DeserializeObject (TokenJson) If (! string.IsNullOrEmpty (TokenEntity.error)) {if (TokenEntity.error = = "invalid_client" & & TokenEntity.error_description = = "unknown client id") Console.WriteLine ("API Key incorrect") Else if (TokenEntity.error = = "invalid_client" & & TokenEntity.error_description = = "Client authentication failed") Console.WriteLine ("Secret Key is incorrect"); else Console.WriteLine ("unknown error: failed to get Token"); Console.ReadKey () Return;} string URL = "https://aip.baidubce.com/rpc/2.0/mt/texttrans/v1?access_token="+ TokenEntity.access_token" String Q = "text translation is an online text translation service launched by Baidu translation based on leading natural language processing technology, which can support 200 + languages such as Chinese, English, Japanese and Korean, and automatic detection of 100 + languages." ; string parms = "{\" Q\ ":\" + Q + "\",\ "from\":\ "zh\",\ "to\":\ "en\"} "; / / from: translation source language to: translation target language Q: request translation content HttpTool httppost = new HttpTool () Var strJson = httppost.HttpPost (URL, parms, "", "application/json;charset=utf-8"); Console.WriteLine (strJson); Console.ReadKey () } # endregion} catch (Exception ex) {Console.WriteLine ("Translation failed:" + ex.Message) }} / / the access_token obtained by calling getAccessToken () suggests setting the cache public static String getAccessToken () {try {String authHost = "https://aip.baidubce.com/oauth/2.0/token"; HttpClient client = new HttpClient () according to the expires_in time. List paraList = new List (); paraList.Add (new KeyValuePair ("grant_type", "client_credentials")); paraList.Add (new KeyValuePair ("client_id", clientId)); paraList.Add (new KeyValuePair ("client_secret", clientSecret)); HttpResponseMessage response = client.PostAsync (authHost, new FormUrlEncodedContent (paraList)). Result String result = response.Content.ReadAsStringAsync () .Result; return result;} catch (Exception ex) {return ";}} public class AccessToken {public string refresh_token {get; set } public int expires_in {get; set;} public string scope {get; set;} public string session_key {get; set;} public string access_token {get; set;} public string session_secret {get; set;} public string error {get; set;} public string error_description {get; set }

This is the answer to the question about how to implement machine translation based on Baidu AI. I hope the above content can be of some help to you. If you still have a lot of doubts to be solved, you can follow the industry information channel to learn more about it.

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