百度語音合成Rest API使用
阿新 • • 發佈：2019-02-14
TIP：這是RestApi使用，實際在web使用中java SDK方式使用較好，本文為測試使用，包括maven搭建執行springmvc的所有程式碼，實際程式碼可直接跳到publicutil.java和speechcontroller.java。其它還有C# Android ios方式見連結中語音合成docs。
一.相關連結：
http://yuyin.baidu.com/docs/tts 語音合成docs
https://console.bce.baidu.com 百度控制檯，可以申請語音合成等APIkey、SecretKey;
http://ai.baidu.com/forum/topic/show/496727 小帥
二.專案結構：
三.相關程式碼：
pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/maven-v4_0_0.xsd"> <modelVersion>4.0.0</modelVersion> <groupId>com.citywy</groupId> <artifactId>BaiDuSpeech</artifactId> <packaging>war</packaging> <version>0.0.1-SNAPSHOT</version> <name>BaiDuSpeech Maven Webapp</name> <url>http://maven.apache.org</url> <!-- spring的版本配置 --> <properties> <spring.version>3.2.4.RELEASE</spring.version> <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding> </properties> <dependencies> <!-- spring start --> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aop</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-aspects</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-beans</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-context-support</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-core</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-expression</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-jdbc</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-orm</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-test</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-tx</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-web</artifactId> <version>${spring.version}</version> </dependency> <dependency> <groupId>org.springframework</groupId> <artifactId>spring-webmvc</artifactId> <version>${spring.version}</version> </dependency> <!-- spring end --> <!-- servlet --> <dependency> <groupId>javax.servlet</groupId> <artifactId>servlet-api</artifactId> <version>3.0-alpha-1</version> <scope>provided</scope> </dependency> <!-- https://mvnrepository.com/artifact/jstl/jstl --> <dependency> <groupId>jstl</groupId> <artifactId>jstl</artifactId> <version>1.2</version> </dependency> <!-- 檔案上傳 --> <dependency> <groupId>commons-io</groupId> <artifactId>commons-io</artifactId> <version>2.4</version> </dependency> <dependency> <groupId>commons-fileupload</groupId> <artifactId>commons-fileupload</artifactId> <version>1.2.2</version> </dependency> <!-- https://mvnrepository.com/artifact/commons-logging/commons-logging --> <dependency> <groupId>commons-logging</groupId> <artifactId>commons-logging</artifactId> <version>1.2</version> </dependency> <dependency> <groupId>org.json</groupId> <artifactId>json</artifactId> <version>20180130</version> </dependency> </dependencies> <build> <finalName>BaiDuSpeech</finalName> <plugins> <!-- 使用jetty執行 --> <plugin> <groupId>org.mortbay.jetty</groupId> <artifactId>maven-jetty-plugin</artifactId> <version>6.1.10</version> <configuration> <!-- 熱部署，大於0為開啟 --> <scanIntervalSeconds>3</scanIntervalSeconds> <webAppConfig> <contextPath>/</contextPath> </webAppConfig> <connectors> <connector implementation="org.mortbay.jetty.nio.SelectChannelConnector"> <!-- 埠，可修改 --> <port>80</port> </connector> </connectors> </configuration> </plugin> </plugins> </build> </project>
springmvc.xml和web.xml
<beans xmlns="http://www.springframework.org/schema/beans" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:mvc="http://www.springframework.org/schema/mvc" xmlns:context="http://www.springframework.org/schema/context" xmlns:aop="http://www.springframework.org/schema/aop" xmlns:tx="http://www.springframework.org/schema/tx" xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans-3.2.xsd http://www.springframework.org/schema/mvc http://www.springframework.org/schema/mvc/spring-mvc-3.2.xsd http://www.springframework.org/schema/context http://www.springframework.org/schema/context/spring-context-3.2.xsd http://www.springframework.org/schema/aop http://www.springframework.org/schema/aop/spring-aop-3.2.xsd http://www.springframework.org/schema/tx http://www.springframework.org/schema/tx/spring-tx-3.2.xsd "> <!-- 自動掃描包下面的檔案，類上帶有@Controller的會註冊為bean --> <context:component-scan base-package="com.citywy.view"></context:component-scan> <!-- 代替處理器對映器、處理器介面卡 ,mvc註解驅動--> <mvc:annotation-driven/> <bean class="org.springframework.web.servlet.view.InternalResourceViewResolver"> <property name="prefix" value="/"/> <property name="suffix" value=".jsp"/> </bean> </beans>
<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://java.sun.com/xml/ns/javaee" xsi:schemaLocation="http://java.sun.com/xml/ns/javaee http://java.sun.com/xml/ns/javaee/web-app_3_0.xsd" id="WebApp_ID" version="3.0">
<filter>
<filter-name>encodingFilter</filter-name>
<filter-class>org.springframework.web.filter.CharacterEncodingFilter</filter-class>
<init-param>
<param-name>encoding</param-name>
<param-value>UTF-8</param-value>
</init-param>
<init-param>
<param-name>forceEncoding</param-name>
<param-value>true</param-value>
</init-param>
</filter>
<filter-mapping>
<filter-name>encodingFilter</filter-name>
<url-pattern>/*</url-pattern>
</filter-mapping>
<display-name>BaiDuSpeech</display-name>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>
<!-- springmvc請求處理 -->
<servlet>
<servlet-name>springmvc</servlet-name>
<servlet-class>org.springframework.web.servlet.DispatcherServlet</servlet-class>
<init-param>
<param-name>contextConfigLocation</param-name>
<param-value>classpath:springmvc.xml</param-value>
</init-param>
</servlet>
<servlet-mapping>
<servlet-name>springmvc</servlet-name>
<url-pattern>*.htm</url-pattern>
</servlet-mapping>
</web-app> publicutil.java
package com.citywy.util;
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.File;
import java.io.FileOutputStream;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.net.HttpURLConnection;
import java.net.URL;
import java.util.Date;
import java.util.List;
import java.util.Map;
import java.util.Random;
import org.json.JSONObject;
public class PublicUtil {
/**
* 獲取許可權token.AccessToken有效期為一個月，開發者需要對Access Token的有效性進行判斷，如果Access Token過期可以重新獲取
* @return 返回示例：
* {
* "access_token": "24.460da4889caad24cccdb1fea17221975.2592000.1491995545.282335-1234567",
* "expires_in": 2592000
* }
*/
public static String getAuth() {
// 官網獲取的 API Key 更新為你註冊的
String clientId = "百度雲應用的AK";
// 官網獲取的 Secret Key 更新為你註冊的
String clientSecret = "百度雲應用的SK";
return getAuth(clientId, clientSecret);
}
/**
* 獲取API訪問token
* 該token有一定的有效期，需要自行管理，當失效時需重新獲取.
* @param ak - 百度雲官網獲取的 API Key
* @param sk - 百度雲官網獲取的 Securet Key
* @return assess_token 示例：
* "24.460da4889caad24cccdb1fea17221975.2592000.1491995545.282335-1234567"
*/
public static String getAuth(String ak, String sk) {
// 獲取token地址
String authHost = "https://openapi.baidu.com/oauth/2.0/token?";
String getAccessTokenUrl = authHost
// 1. grant_type為固定引數
+ "grant_type=client_credentials"
// 2. 官網獲取的 API Key
+ "&client_id=" + ak
// 3. 官網獲取的 Secret Key
+ "&client_secret=" + sk;
try {
URL realUrl = new URL(getAccessTokenUrl);
// 開啟和URL之間的連線
HttpURLConnection connection = (HttpURLConnection) realUrl.openConnection();
connection.setRequestMethod("GET");
connection.connect();
// 獲取所有響應頭欄位
Map<String, List<String>> map = connection.getHeaderFields();
// 遍歷所有的響應頭欄位
for (String key : map.keySet()) {
System.err.println(key + "--->" + map.get(key));
}
// 定義 BufferedReader輸入流來讀取URL的響應
BufferedReader in = new BufferedReader(new InputStreamReader(connection.getInputStream()));
String result = "";
String line;
while ((line = in.readLine()) != null) {
result += line;
}
/**
* 返回結果示例
*/
System.err.println("result:" + result);
JSONObject jsonObject = new JSONObject(result);
String access_token = jsonObject.getString("access_token");
return access_token;
} catch (Exception e) {
System.err.printf("獲取token失敗！");
e.printStackTrace(System.err);
}
return null;
}
/**
* 語音合成HTTP方法
* @param requestUrl 請求的介面地址 拼接access_token後的
* @param params 語音合成的引數
* @throws Exception
*/
public static String postVoice(String requestUrl,String params) throws Exception {
String workspace = System.getProperty("user.home");
String path = workspace+"/text2audio/";
try {
if (!(new File(path).isDirectory())) {
new File(path).mkdir();
}
} catch (SecurityException e) {
e.printStackTrace();
}
String filePath = path+"VOICE"+new Date().getTime()/1000+".mp3";
String generalUrl = requestUrl;
URL url = new URL(generalUrl);
System.out.println(generalUrl);
// 開啟和URL之間的連線
HttpURLConnection connection = (HttpURLConnection) url.openConnection();
System.out.println("開啟連結，開始傳送請求"+new Date().getTime()/1000);
connection.setRequestMethod("POST");
// 設定通用的請求屬性
connection.setRequestProperty("Content-Type", "application/x-www-form-urlencoded");
connection.setRequestProperty("Connection", "Keep-Alive");
connection.setUseCaches(false);
connection.setDoOutput(true);
connection.setDoInput(true);
// 得到請求的輸出流物件
DataOutputStream out = new DataOutputStream(connection.getOutputStream());
out.writeBytes(params);
out.flush();
out.close();
// 建立實際的連線
connection.connect();
// 獲取所有響應頭欄位
Map<String, List<String>> headers = connection.getHeaderFields();
// 遍歷所有的響應頭欄位
for (String key : headers.keySet()) {
System.out.println(key + "--->" + headers.get(key));
}
// 定義 BufferedReader輸入流來讀取URL的響應
InputStream inputStream = connection.getInputStream();
FileOutputStream outputStream = new FileOutputStream(filePath);
byte[] buffer = new byte[1024];
int len = -1;
while ((len=inputStream.read(buffer))!=-1) {
outputStream.write(buffer,0,len);
}
outputStream.close();
System.out.println("請求結束"+new Date().getTime()/1000);
System.out.println("MP3檔案儲存目錄:" + filePath);
return filePath;
}
/**
* 獲取一定長度的隨機字串
* @param length 指定字串長度
* @return 一定長度的字串
*/
public static String getRandomStringByLength(int length) {
String base = "abcdefghijklmnopqrstuvwxyz0123456789";
Random random = new Random();
StringBuffer sb = new StringBuffer();
for (int i = 0; i < length; i++) {
int number = random.nextInt(base.length());
sb.append(base.charAt(number));
}
return sb.toString();
}
}SpeechController.java
package com.citywy.view;
import java.net.URLEncoder;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import org.springframework.context.annotation.Scope;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.servlet.ModelAndView;
import com.citywy.util.PublicUtil;
@Controller
@Scope("prototype")
public class SpeechController {
public String TEXT2AUDIO_URL = "http://tsn.baidu.com/text2audio";
//Rest Api
@RequestMapping("rest")
public ModelAndView speechRestApi(HttpServletRequest request,HttpServletResponse response) throws Exception{
ModelAndView res=new ModelAndView("index");
//獲取access_token
String token=PublicUtil.getAuth();
//語音合成
text2Audio("百度語音合成，我覺得妞妞說話最可愛！", token, "1", PublicUtil.getRandomStringByLength(50));
return res;
}
/**
* 所有引數方法
* @Title text2Audio
* @param tex 必填 合成的文字，使用UTF-8編碼，請注意文字長度必須小於1024位元組
* @param lan 必填 語言選擇,填寫zh
* @param tok 必填 開放平臺獲取到的開發者access_token
* @param ctp 必填 客戶端型別選擇，web端填寫1
* @param cuid 必填 使用者唯一標識，用來區分使用者，填寫機器 MAC 地址或 IMEI 碼，長度為60以內
* @param spd 選填 語速，取值0-9，預設為5中語速
* @param pit 選填 音調，取值0-9，預設為5中語調
* @param vol 選填 音量，取值0-9，預設為5中音量
* @param per 選填 發音人選擇, 0為女聲，1為男聲，3為情感合成-度逍遙，4為情感合成-度丫丫，預設為普通女聲
*/
public void text2Audio(String tex,String tok,String ctp,String cuid,String spd,String pit,String vol,String per) throws Exception{
String params = "tex=" + URLEncoder.encode(tex, "UTF-8")
+ "&lan=zh&cuid=" + cuid + "&ctp=1&tok=" + tok + "&spd=" + spd
+ "&pit=" + pit + "&vol=" + vol + "&per=" + per;
System.out.println(params);
String data = PublicUtil.postVoice(TEXT2AUDIO_URL,params);
System.out.println("檔案儲存路徑:"+data);
}
/**
* 必填引數方法
* @Title text2Audio
* @param tex 必填 合成的文字，使用UTF-8編碼，請注意文字長度必須小於1024位元組
* @param lan 必填 語言選擇,填寫zh
* @param tok 必填 開放平臺獲取到的開發者access_token
* @param ctp 必填 客戶端型別選擇，web端填寫1
* @param cuid 必填 使用者唯一標識，用來區分使用者，填寫機器 MAC 地址或 IMEI 碼，長度為60以內
*/
@SuppressWarnings("static-access")
public void text2Audio(String tex,String tok,String ctp,String cuid) throws Exception{
String params = "tex=" + URLEncoder.encode(tex, "UTF-8")
+ "&lan=zh&cuid=" + cuid + "&ctp=1&tok=" + tok;
System.out.println(params);
String data = PublicUtil.postVoice(TEXT2AUDIO_URL,params);
System.out.println("檔案儲存路徑:"+data);
}
}