12.26

软件构造

import okhttp3.*;
import org.json.JSONArray;
import org.json.JSONObject;

import java.io.IOException;
import java.util.Scanner;

class Sample {
public static final String API_KEY = "h1Hn3oHAWMObDjjFGUY9a2sP";
public static final String SECRET_KEY = "B0cVpGwGb08h8fqochevBsgOFGi6G4oA";
static final OkHttpClient HTTP_CLIENT = new OkHttpClient().newBuilder().build();

public static void main(String[] args) throws IOException {
    // 获取用户输入的要翻译的文本
    Scanner scanner = new Scanner(System.in);
    System.out.print("请输入要翻译的文本：");
    String textToTranslate = scanner.nextLine();

    // 获取用户选择的目标语言
    String targetLanguage = getUserTargetLanguage();

    // 构建请求体的 JSON 对象
    JSONObject requestBodyJson = new JSONObject();
    requestBodyJson.put("from", "auto");  // 源语言自动检测
    requestBodyJson.put("to", targetLanguage);  // 目标语言根据用户选择
    requestBodyJson.put("q", textToTranslate);  // 添加要翻译的文本

    // 创建请求体
    MediaType mediaType = MediaType.parse("application/json");
    RequestBody body = RequestBody.create(mediaType, requestBodyJson.toString());

    // 创建HTTP请求
    Request request = new Request.Builder()
            .url("https://aip.baidubce.com/rpc/2.0/mt/texttrans/v1?access_token=" + getAccessToken())
            .method("POST", body)
            .addHeader("Content-Type", "application/json")
            .addHeader("Accept", "application/json")
            .build();

    // 发起请求并获取响应
    Response response = HTTP_CLIENT.newCall(request).execute();

    // 解析翻译结果
    String translatedText = parseTranslationResult(response.body().string());
    System.out.println("翻译结果：" + translatedText);
}

/**
 * 解析翻译结果
 *
 * @param responseBody 响应体字符串
 * @return 翻译结果
 */
static String parseTranslationResult(String responseBody) {
    JSONObject responseJson = new JSONObject(responseBody);
    JSONArray transResultArray = responseJson.getJSONObject("result").getJSONArray("trans_result");

    // 假设只翻译一段文本，取第一个翻译结果
    if (transResultArray.length() > 0) {
        return transResultArray.getJSONObject(0).getString("dst");
    } else {
        return "未能获取翻译结果";
    }
}

/**
 * 从用户的AK，SK生成鉴权签名（Access Token）
 *
 * @return 鉴权签名（Access Token）
 * @throws IOException IO异常
 */
static String getAccessToken() throws IOException {
    // 创建请求体
    MediaType mediaType = MediaType.parse("application/x-www-form-urlencoded");
    RequestBody body = RequestBody.create(mediaType, "grant_type=client_credentials&client_id=" + API_KEY
            + "&client_secret=" + SECRET_KEY);

    // 创建HTTP请求
    Request request = new Request.Builder()
            .url("https://aip.baidubce.com/oauth/2.0/token")
            .method("POST", body)
            .addHeader("Content-Type", "application/x-www-form-urlencoded")
            .build();

    // 发起请求并获取响应，解析JSON获取Access Token
    Response response = HTTP_CLIENT.newCall(request).execute();
    return new JSONObject(response.body().string()).getString("access_token");
}

/**
 * 获取用户选择的目标语言
 *
 * @return 目标语言代码
 */
static String getUserTargetLanguage() {
    Scanner scanner = new Scanner(System.in);
    System.out.print("请选择目标语言（输入 'zh' 翻译为中文，输入 'en' 翻译为英文）：");
    return scanner.nextLine();
}