软件构造 作业1

实验一：百度机器翻译SDK实验（2023.11.29日完成）

    任务一：下载配置百度翻译Java相关库及环境（占10%）。

    任务二：了解百度翻译相关功能并进行总结，包括文本翻译-通用版和文本翻译-词典版（占20%）。

    任务三：完成百度翻译相关功能代码并测试调用，要求可以实现中文翻译成英文，英文翻译成中文（占30%）。

    任务四：完成百度翻译GUI相关功能代码并测试调用，要求可以实现中文翻译成英文，英文翻译成中文（占30%）。

    实验总结：（占10%）

    实验效果样例图：

   

    参考资料：https://ai.baidu.com/ai-doc/index/MT

    https://cloud.baidu.com/doc/MT/index.html

    https://console.bce.baidu.com/tools/?_=1669807341890#/api?product=AI&project=%E6%9C%BA%E5%99%A8%E7%BF%BB%E8%AF%91&parent=%E9%89%B4%E6%9D%83%E8%AE%A4%E8%AF%81%E6%9C%BA%E5%88%B6&api=oauth%2F2.0%2Ftoken&method=post

 

package org.example.test1;

import com.fasterxml.jackson.databind.JsonNode;
import com.fasterxml.jackson.databind.ObjectMapper;
import javafx.application.Application;
import javafx.geometry.Insets;
import javafx.scene.Scene;
import javafx.scene.control.Button;
import javafx.scene.control.ComboBox;
import javafx.scene.control.Label;
import javafx.scene.control.TextField;
import javafx.scene.layout.GridPane;
import javafx.scene.layout.VBox;
import javafx.stage.Stage;
import okhttp3.*;

import java.io.IOException;

public class TranslationApp extends Application {

    public static final String API_KEY = "P7S23q4f4FCRVV6BSCFaOemO";
    public static final String SECRET_KEY = "ExMjapgueKChqEsshHj2TpwzjPiKz8o5";

    static final OkHttpClient HTTP_CLIENT = new OkHttpClient().newBuilder().build();

    public static void main(String[] args) {
        launch(args);
    }



    @Override
    public void start(Stage primaryStage) {
        primaryStage.setTitle("实时翻译");

        TextField inputTextField = new TextField();
        Label outputLabel = new Label();

        ComboBox<String> translationDirectionComboBox = new ComboBox<>();
        translationDirectionComboBox.getItems().addAll("中译英", "英译中","中译日","中译意大利语","英译日");
        translationDirectionComboBox.setValue("中译英");

        Button translateButton = new Button("翻译");
        translateButton.setOnAction(e -> {
            try {
                String userInput = inputTextField.getText();
                String translationResult = translate(userInput, translationDirectionComboBox.getValue());
                outputLabel.setText("翻译结果: " + translationResult);
            } catch (IOException ioException) {
                ioException.printStackTrace();
            }
        });

        // 使用GridPane重新布局
        GridPane gridPane = new GridPane();
        gridPane.setHgap(10);
        gridPane.setVgap(10);
        gridPane.setPadding(new Insets(10, 10, 10, 10));

        gridPane.add(new Label("输入文本:"), 0, 0);
        gridPane.add(inputTextField, 1, 0);
        gridPane.add(new Label("翻译方向:"), 0, 1);
        gridPane.add(translationDirectionComboBox, 1, 1);
        gridPane.add(new Label(""), 0, 2); // 空行
        gridPane.add(new Label(""), 1, 2); // 空行
        gridPane.add(translateButton, 5, 0);

        VBox vbox = new VBox(gridPane, outputLabel);
        vbox.setSpacing(10);

        Scene scene = new Scene(vbox, 400, 250);

        primaryStage.setScene(scene);
        primaryStage.show();
    }

    /**
     * 翻译方法
     */
    private String translate(String userInput, String translationDirection) throws IOException {
        String targetLanguage;
        targetLanguage = null;
        String translationLanguage = null;
        if ( translationDirection.equals("中译英") ){
            targetLanguage = "zh";
            translationLanguage = "en";
        }
        else if(translationDirection.equals("英译中")){
            targetLanguage = "en";
            translationLanguage = "zh";
        }
        else if (translationDirection.equals("中译日")) {
            targetLanguage = "zh";
            translationLanguage = "jp";
        }
        else if (translationDirection.equals("中译意大利语")) {
            targetLanguage = "zh";
            translationLanguage = "spa";
        }
        else if(translationDirection.equals("英译日")){
            targetLanguage = "en";
            translationLanguage = "jp";
        }
        MediaType mediaType = MediaType.parse("application/json");

        RequestBody body = RequestBody.create(mediaType, "{\"from\":\""+targetLanguage+"\",\"to\":\""+translationLanguage+"\",\"q\":\"" + userInput + "\"}");
        //   RequestBody body = RequestBody.create(mediaType, "{\"from\":\"zh\",\"to\":\"en\",\"q\":\"" + userInput + "\"}");
        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();
        Response response = HTTP_CLIENT.newCall(request).execute();
        String responseString = response.body().string();
        ObjectMapper objectMapper = new ObjectMapper();
        JsonNode jsonNode = objectMapper.readTree(responseString);
        return jsonNode.get("result").get("trans_result").get(0).get("dst").asText();
    }

    /**
     * 获取 Access Token 的方法
     */
    private String getAccessToken() throws IOException {
        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);
        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();
        Response response = HTTP_CLIENT.newCall(request).execute();
        return new ObjectMapper().readTree(response.body().string()).get("access_token").asText();
    }
}