Android中调用百度翻译Demo

官网：
http://api.fanyi.baidu.com/api/trans/product/apidoc
Demo下载地址：
https://gitee.com/olleh/MyTranslate.git

MainActivity

package com.example.zhangyu.mytranslate;import android.os.Bundle;
import android.os.Handler;
import android.support.v7.app.AppCompatActivity;
import android.view.View;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;import com.example.zhangyu.mytranslate.BaiduTranslate.TransApi;
import com.example.zhangyu.mytranslate.BaiduTranslate.TranslateResult;
import com.google.gson.Gson;import java.util.List;public class MainActivity extends AppCompatActivity {private Button button;private TextView textView;private Handler handler = new Handler();private EditText editText;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);initView();}private void initView() {editText = (EditText) findViewById(R.id.editText);button = (Button) findViewById(R.id.button);textView = (TextView) findViewById(R.id.textView);button.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {final String query =editText.getText().toString();
//                final String query = "我爱你\n你爱我吗";new Thread(new Runnable() {@Overridepublic void run() {String resultJson = new TransApi().getTransResult(query, "auto", "en");//拿到结果，对结果进行解析。Gson gson = new Gson();TranslateResult translateResult = gson.fromJson(resultJson, TranslateResult.class);final List<TranslateResult.TransResultBean> trans_result = translateResult.getTrans_result();handler.post(new Runnable() {@Overridepublic void run() {String dst = "";for (TranslateResult.TransResultBean s : trans_result) {dst = dst + "\n" + s.getDst();}textView.setText(dst);}});}}).start();}});}
}

TransApi

package com.example.zhangyu.mytranslate.BaiduTranslate;import java.util.HashMap;
import java.util.Map;public class TransApi {private static final String TRANS_API_HOST = "http://api.fanyi.baidu.com/api/trans/vip/translate";/*自己的id*/private static final String APP_ID = "20181125000238839";private static final String SECURITY_KEY = "YJc1SJxDR92myrQTjH_T";private String appid;private String securityKey;public TransApi() {this.appid = APP_ID;this.securityKey = SECURITY_KEY;}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;}}

HttpGet

package com.example.zhangyu.mytranslate.BaiduTranslate;import java.io.BufferedReader;
import java.io.Closeable;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.UnsupportedEncodingException;
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;import javax.net.ssl.HttpsURLConnection;
import javax.net.ssl.SSLContext;
import javax.net.ssl.TrustManager;
import javax.net.ssl.X509TrustManager;class HttpGet {protected static final int SOCKET_TIMEOUT = 10000; // 10Sprotected static final String GET = "GET";public static String get(String host, Map<String, String> params) {try {// 设置SSLContextSSLContext 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keycontinue;}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() {@Overridepublic X509Certificate[] getAcceptedIssuers() {return null;}@Overridepublic void checkServerTrusted(X509Certificate[] chain, String authType) throws CertificateException {}@Overridepublic void checkClientTrusted(X509Certificate[] chain, String authType) throws CertificateException {}};}

MD5

package com.example.zhangyu.mytranslate.BaiduTranslate;import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.IOException;
import java.io.InputStream;
import java.io.UnsupportedEncodingException;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;/*** MD5编码相关的类* * @author * */
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 = null;try {inputByteArray = input.getBytes("utf-8");} catch (UnsupportedEncodingException e) {// TODO Auto-generated catch blocke.printStackTrace();}// 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;}}/*** 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);}}

TranslateResult

package com.example.zhangyu.mytranslate.BaiduTranslate;import java.util.List;public class TranslateResult {/*** from : zh* to : en* trans_result : [{"src":"null要就找一个让你衣食无忧的人","dst":"Null wants to find someone who will make you comfortable with food and clothing"},{"src":"要么就找一个爱你爱到骨子里的","dst":"Or find someone who loves you to the bone."},{"src":"要么就一个人","dst":"Or just one person."},{"src":"不然为什么要谈恋爱","dst":"Otherwise why to fall in love?"},{"src":"是酒不好喝","dst":"It's a bad wine."},{"src":"还是手机不好玩","dst":"Or mobile phones are not fun"}]*/private String from;private String to;private List<TransResultBean> trans_result;@Overridepublic String toString() {return "TranslateResult{" +"from='" + from + '\'' +", to='" + to + '\'' +", trans_result=" + trans_result +'}';}public String getFrom() {return from;}public void setFrom(String from) {this.from = from;}public String getTo() {return to;}public void setTo(String to) {this.to = to;}public List<TransResultBean> getTrans_result() {return trans_result;}public void setTrans_result(List<TransResultBean> trans_result) {this.trans_result = trans_result;}public static class TransResultBean {/*** src : null要就找一个让你衣食无忧的人* dst : Null wants to find someone who will make you comfortable with food and clothing*/private String src;private String dst;@Overridepublic String toString() {return "TransResultBean{" +"src='" + src + '\'' +", dst='" + dst + '\'' +'}';}public String getSrc() {return src;}public void setSrc(String src) {this.src = src;}public String getDst() {return dst;}public void setDst(String dst) {this.dst = dst;}}
}

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Android中调用百度翻译Demo

Android中调用百度翻译Demo

MainActivity

TransApi

HttpGet

MD5

TranslateResult

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