架构：SpringBoot+JavaFx+百度翻译API
效果：
controller：
import com.alibaba.fastjson.JSON; import com.alibaba.fastjson.JSONArray; import com.alibaba.fastjson.JSONObject; import com.maxinhai.world.WorldApplication; import com.maxinhai.world.api.TransApi; import com.maxinhai.world.component.MsgAlert; import de.felixroske.jfxsupport.FXMLController; import javafx.beans.value.ChangeListener; import javafx.beans.value.ObservableValue; import javafx.fxml.FXML; import javafx.fxml.Initializable; import javafx.scene.control.TextArea; import javafx.scene.layout.HBox; import org.slf4j.Logger; import org.slf4j.LoggerFactory; import org.springframework.util.StringUtils; import java.math.BigDecimal; import java.net.URL; import java.util.Iterator; import java.util.ResourceBundle; /** * @program: world * @description: 简单翻译控制器 * @author: XinHai.Ma * @create: 2021-05-27 14:57 */ @FXMLController public class EasyTranslationController extends BaseController implements Initializable { private static final Logger logger = LoggerFactory.getLogger(EasyTranslationController.class); @FXML private HBox parent; @FXML private TextArea fromArea; @FXML private TextArea toArea; @Override public void initialize(URL location, ResourceBundle resources) { // 自动换行 fromArea.setWrapText(true); toArea.setWrapText(true); // 文本域自适应 WorldApplication.getScene().widthProperty().addListener(new ChangeListener<Number>() { @Override public void changed(ObservableValue<? extends Number> observable, Number oldValue, Number newValue) { BigDecimal totalWith = new BigDecimal(newValue.doubleValue()); BigDecimal ratio = new BigDecimal("0.45"); BigDecimal with = totalWith.multiply(ratio).setScale(2, BigDecimal.ROUND_HALF_UP); fromArea.setPrefWidth(with.doubleValue()); toArea.setPrefWidth(with.doubleValue()); } }); WorldApplication.getScene().heightProperty().addListener(new ChangeListener<Number>() { @Override public void changed(ObservableValue<? extends Number> observable, Number oldValue, Number newValue) { parent.setPrefHeight(newValue.doubleValue()); parent.setPrefHeight(newValue.doubleValue()); } }); } /** * 清空内容 */ @FXML public void clear() { fromArea.setText(""); toArea.setText(""); } /** * 翻译 */ @FXML public void translation() { String query = fromArea.getText(); if(StringUtils.isEmpty(query)) { MsgAlert.alert("请输入翻译内容!"); return; } TransApi api = new TransApi("API_ID", "密钥"); String result = api.getTransResult(query, "zh", "en"); logger.info("百度翻译API响应: {}", result); JSONObject jsonObject = JSON.parseObject(result); if(StringUtils.isEmpty(jsonObject.getString("error_code"))) { JSONArray trans_result = jsonObject.getJSONArray("trans_result"); StringBuffer translation = new StringBuffer(""); Iterator<Object> iterator = trans_result.iterator(); while (iterator.hasNext()) { JSONObject object = (JSONObject)iterator.next(); String dst = object.getString("dst"); translation.append(dst); translation.append(" "); } // JSONObject object = trans_result.getJSONObject(0); // String dst = object.getString("dst"); toArea.setText(translation.toString()); } else { MsgAlert.alert(result); } } }
view：
import de.felixroske.jfxsupport.AbstractFxmlView; import de.felixroske.jfxsupport.FXMLView; @FXMLView(value = "/fxml/easy_translation.fxml", title = "easy_translation", bundle = "i18n.index", encoding = "utf-8") public class EasyTranslationFxmlView extends AbstractFxmlView { }
fxml：
<?xml version="1.0" encoding="UTF-8"?> <?import javafx.geometry.*?> <?import javafx.scene.control.*?> <?import java.lang.*?> <?import javafx.scene.layout.*?> <BorderPane maxHeight="-Infinity" maxWidth="-Infinity" minHeight="-Infinity" minWidth="-Infinity" prefHeight="600.0" prefWidth="1000.0" xmlns="http://javafx.com/javafx/8" xmlns:fx="http://javafx.com/fxml/1" fx:controller="com.maxinhai.world.controller.EasyTranslationController"> <top> <HBox prefHeight="42.0" prefWidth="800.0" BorderPane.alignment="CENTER"> <children> <Button mnemonicParsing="false" text="首页" onAction="#toIndex"> <HBox.margin> <Insets bottom="5.0" left="5.0" right="5.0" top="5.0" /> </HBox.margin> </Button> <Button mnemonicParsing="false" text="翻译" onAction="#translation"> <HBox.margin> <Insets bottom="5.0" left="5.0" right="5.0" top="5.0" /> </HBox.margin> </Button> <Button mnemonicParsing="false" text="清空" onAction="#clear"> <HBox.margin> <Insets bottom="5.0" left="5.0" right="5.0" top="5.0" /> </HBox.margin> </Button> </children> </HBox> </top> <center> <VBox prefHeight="200.0" prefWidth="100.0" BorderPane.alignment="CENTER"> <children> <HBox fx:id="parent" alignment="CENTER" prefHeight="558.0" prefWidth="1000.0"> <children> <TextArea prefHeight="500.0" prefWidth="430.0" fx:id="fromArea"> <HBox.margin> <Insets bottom="20.0" left="20.0" right="20.0" top="20.0" /> </HBox.margin> </TextArea> <TextArea prefHeight="500.0" prefWidth="430.0" fx:id="toArea"> <HBox.margin> <Insets bottom="20.0" left="20.0" right="20.0" top="20.0" /> </HBox.margin> </TextArea> </children> </HBox> </children> </VBox> </center> </BorderPane>
TransApi：
import com.maxinhai.world.utils.HttpGet; import com.maxinhai.world.utils.MD5; import java.util.HashMap; import java.util.Map; /** * @program: world * @description: 百度翻译客户端 * @author: XinHai.Ma * @create: 2021-05-27 14:20 */ public class TransApi { private static final String TRANS_API_HOST = "http://api.fanyi.baidu.com/api/trans/vip/translate"; private String appid; private String securityKey; public TransApi(String appid, String securityKey) { this.appid = appid; this.securityKey = securityKey; } public String getTransResult(String query, String from, String to) { Map<String, String> params = buildParams(query, from, to); return HttpGet.get(TRANS_API_HOST, params); } private Map<String, String> buildParams(String query, String from, String to) { Map<String, String> params = new HashMap<String, String>(); params.put("q", query); params.put("from", from); params.put("to", to); params.put("appid", appid); // 随机数 String salt = String.valueOf(System.currentTimeMillis()); params.put("salt", salt); // 签名 String src = appid + query + salt + securityKey; // 加密前的原文 params.put("sign", MD5.md5(src)); return params; } }
MD5：
import java.io.*; import java.security.MessageDigest; import java.security.NoSuchAlgorithmException; /** * @program: world * @description: MD5加密工具 * @author: XinHai.Ma * @create: 2021-05-27 14:20 */ public class MD5 { // 首先初始化一个字符数组，用来存放每个16进制字符 private static final char[] hexDigits = { '0', '1', '2', '3', '4', '5', '6', '7', '8', '9', 'a', 'b', 'c', 'd', 'e', 'f' }; /** * 获得一个字符串的MD5值 * * @param input 输入的字符串 * @return 输入字符串的MD5值 * */ public static String md5(String input) { if (input == null) return null; try { // 拿到一个MD5转换器（如果想要SHA1参数换成”SHA1”） MessageDigest messageDigest = MessageDigest.getInstance("MD5"); // 输入的字符串转换成字节数组 byte[] inputByteArray = input.getBytes("utf-8"); // inputByteArray是输入字符串转换得到的字节数组 messageDigest.update(inputByteArray); // 转换并返回结果，也是字节数组，包含16个元素 byte[] resultByteArray = messageDigest.digest(); // 字符数组转换成字符串返回 return byteArrayToHex(resultByteArray); } catch (NoSuchAlgorithmException e) { return null; } catch (UnsupportedEncodingException e) { return null; } } /** * 获取文件的MD5值 * * @param file * @return */ public static String md5(File file) { try { if (!file.isFile()) { System.err.println("文件" + file.getAbsolutePath() + "不存在或者不是文件"); return null; } FileInputStream in = new FileInputStream(file); String result = md5(in); in.close(); return result; } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } return null; } public static String md5(InputStream in) { try { MessageDigest messagedigest = MessageDigest.getInstance("MD5"); byte[] buffer = new byte[1024]; int read = 0; while ((read = in.read(buffer)) != -1) { messagedigest.update(buffer, 0, read); } in.close(); String result = byteArrayToHex(messagedigest.digest()); return result; } catch (NoSuchAlgorithmException e) { e.printStackTrace(); } catch (FileNotFoundException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } return null; } private static String byteArrayToHex(byte[] byteArray) { // new一个字符数组，这个就是用来组成结果字符串的（解释一下：一个byte是八位二进制，也就是2位十六进制字符（2的8次方等于16的2次方）） char[] resultCharArray = new char[byteArray.length * 2]; // 遍历字节数组，通过位运算（位运算效率高），转换成字符放到字符数组中去 int index = 0; for (byte b : byteArray) { resultCharArray[index++] = hexDigits[b >>> 4 & 0xf]; resultCharArray[index++] = hexDigits[b & 0xf]; } // 字符数组组合成字符串返回 return new String(resultCharArray); } }
HttpGet：
import javax.net.ssl.HttpsURLConnection; import javax.net.ssl.SSLContext; import javax.net.ssl.TrustManager; import javax.net.ssl.X509TrustManager; import java.io.*; import java.net.HttpURLConnection; import java.net.MalformedURLException; import java.net.URL; import java.net.URLEncoder; import java.security.KeyManagementException; import java.security.NoSuchAlgorithmException; import java.security.cert.CertificateException; import java.security.cert.X509Certificate; import java.util.Map; /** * @program: world * @description: Http客户端 * @author: XinHai.Ma * @create: 2021-05-27 14:22 */ public class HttpGet { protected static final int SOCKET_TIMEOUT = 10000; // 10S protected static final String GET = "GET"; public static String get(String host, Map<String, String> params) { try { // 设置SSLContext SSLContext sslcontext = SSLContext.getInstance("TLS"); sslcontext.init(null, new TrustManager[] { myX509TrustManager }, null); String sendUrl = getUrlWithQueryString(host, params); // System.out.println("URL:" + sendUrl); URL uri = new URL(sendUrl); // 创建URL对象 HttpURLConnection conn = (HttpURLConnection) uri.openConnection(); if (conn instanceof HttpsURLConnection) { ((HttpsURLConnection) conn).setSSLSocketFactory(sslcontext.getSocketFactory()); } conn.setConnectTimeout(SOCKET_TIMEOUT); // 设置相应超时 conn.setRequestMethod(GET); int statusCode = conn.getResponseCode(); if (statusCode != HttpURLConnection.HTTP_OK) { System.out.println("Http错误码：" + statusCode); } // 读取服务器的数据 InputStream is = conn.getInputStream(); BufferedReader br = new BufferedReader(new InputStreamReader(is)); StringBuilder builder = new StringBuilder(); String line = null; while ((line = br.readLine()) != null) { builder.append(line); } String text = builder.toString(); close(br); // 关闭数据流 close(is); // 关闭数据流 conn.disconnect(); // 断开连接 return text; } catch (MalformedURLException e) { e.printStackTrace(); } catch (IOException e) { e.printStackTrace(); } catch (KeyManagementException e) { e.printStackTrace(); } catch (NoSuchAlgorithmException e) { e.printStackTrace(); } return null; } public static String getUrlWithQueryString(String url, Map<String, String> params) { if (params == null) { return url; } StringBuilder builder = new StringBuilder(url); if (url.contains("?")) { builder.append("&"); } else { builder.append("?"); } int i = 0; for (String key : params.keySet()) { String value = params.get(key); if (value == null) { // 过滤空的key continue; } if (i != 0) { builder.append('&'); } builder.append(key); builder.append('='); builder.append(encode(value)); i++; } return builder.toString(); } protected static void close(Closeable closeable) { if (closeable != null) { try { closeable.close(); } catch (IOException e) { e.printStackTrace(); } } } /** * 对输入的字符串进行URL编码, 即转换为%20这种形式 * * @param input 原文 * @return URL编码. 如果编码失败, 则返回原文 */ public static String encode(String input) { if (input == null) { return ""; } try { return URLEncoder.encode(input, "utf-8"); } catch (UnsupportedEncodingException e) { e.printStackTrace(); } return input; } private static TrustManager myX509TrustManager = new X509TrustManager() { @Override public X509Certificate[] getAcceptedIssuers() { return null; } @Override public void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException { } @Override public void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException { } }; }