Spring Boot与百度AI语音识别API集成实践

baidu.ai.appId=your_app_id baidu.ai.apiKey=your_api_key baidu.ai.secretKey=your_secret_key

 com.baidu.aip java-sdk 4.15.1 

import com.baidu.aip.speech.AipSpeech; import org.springframework.beans.factory.annotation.Value; import org.springframework.context.annotation.Bean; import org.springframework.context.annotation.Configuration; @Configuration public class BaiduAIConfig { @Value("${baidu.ai.appId}") private String appId; @Value("${baidu.ai.apiKey}") private String apiKey; @Value("${baidu.ai.secretKey}") private String secretKey; @Bean public AipSpeech aipSpeech() { AipSpeech client = new AipSpeech(appId, apiKey, secretKey); // 可选：设置连接超时参数 client.setConnectionTimeoutInMillis(2000); client.setSocketTimeoutInMillis(60000); return client; } }

import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; @SpringBootApplication public class SpeechRecognitionApplication { public static void main(String[] args) { SpringApplication.run(SpeechRecognitionApplication.class, args); } }

import com.baidu.aip.speech.AipSpeech; import com.baidu.aip.speech.AipSpeechResponse; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.http.ResponseEntity; import org.springframework.http.MediaType; import org.springframework.web.bind.annotation.*; import org.springframework.web.multipart.MultipartFile; import java.io.IOException; import org.json.JSONObject; @RestController @RequestMapping("/api/speech") public class SpeechRecognitionController { @Autowired private AipSpeech aipSpeech; @PostMapping(value = "/recognize", consumes = MediaType.MULTIPART_FORM_DATA_VALUE) public ResponseEntity recognizeSpeech(@RequestParam("audio") MultipartFile audioFile) throws IOException { // 将音频文件转为字节数组 byte[] audioData = audioFile.getBytes();  // 执行语音识别 JSONObject response = aipSpeech.asr(audioData, "pcm", 16000, null);  // 检查返回结果中的错误码 if (response.getInt("err_no") != 0) { return ResponseEntity.status(500).body(response.toString()); } // 返回识别结果 return ResponseEntity.ok(response.toString(4)); } }

import org.junit.jupiter.api.Test; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.boot.test.context.SpringBootTest; import org.springframework.mock.web.MockMultipartFile; import org.springframework.test.web.servlet.MockMvc; import org.springframework.test.web.servlet.request.MockMvcRequestBuilders; import static org.springframework.test.web.servlet.result.MockMvcResultMatchers.status; @SpringBootTest class SpeechRecognitionApplicationTests { @Autowired private MockMvc mockMvc; @Test void testRecognizeSpeech() throws Exception { MockMultipartFile file = new MockMultipartFile( "audio", "test.pcm", "audio/wav", new byte[]{/* test audio data */}); mockMvc.perform(MockMvcRequestBuilders.multipart("/api/speech/recognize") .file(file)) .andExpect(status().isOk()); } }

@PostMapping(value = "/recognize", consumes = MediaType.MULTIPART_FORM_DATA_VALUE) public ResponseEntity recognizeSpeech(@RequestParam("audio") MultipartFile audioFile) { try { byte[] audioData = audioFile.getBytes(); JSONObject response = aipSpeech.asr(audioData, "pcm", 16000, null); if (response.getInt("err_no") != 0) { return ResponseEntity.status(500).body("Error: " + response.optString("err_msg")); } return ResponseEntity.ok(response.toString(4)); } catch (IOException e) { return ResponseEntity.status(500).body("File read error: " + e.getMessage()); } catch (Exception e) { return ResponseEntity.status(500).body("Unexpected error: " + e.getMessage()); } }

import org.slf4j.Logger;import org.slf4j.LoggerFactory;import org.springframework.beans.factory.annotation.Autowired;import org.springframework.http.MediaType;import org.springframework.http.ResponseEntity;import org.springframework.web.bind.annotation.PostMapping;import org.springframework.web.bind.annotation.RequestMapping;import org.springframework.web.bind.annotation.RequestParam;import org.springframework.web.bind.annotation.RestController;import org.springframework.web.multipart.MultipartFile;import org.json.JSONObject;import com.baidu.aip.speech.AipSpeech;import java.io.IOException;@RestController@RequestMapping("/api/speech")public class SpeechRecognitionController {private static final Logger logger = LoggerFactory.getLogger(SpeechRecognitionController.class);@Autowiredprivate AipSpeech aipSpeech;@PostMapping(value = "/recognize", consumes = MediaType.MULTIPART_FORM_DATA_VALUE)public ResponseEntity recognizeSpeech(@RequestParam("audio") MultipartFile audioFile) {try {byte[] audioData = audioFile.getBytes();logger.info("接收到的音频文件大小: {}", audioData.length);JSONObject response = aipSpeech.asr(audioData, "pcm", 16000, null);if (response.getInt("err_no") != 0) {logger.error("语音识别错误: {}", response.optString("err_msg"));return ResponseEntity.status(500).body("错误: " + response.optString("err_msg"));}logger.info("识别结果: {}", response.toString(4));return ResponseEntity.ok(response.toString(4));} catch (IOException e) {logger.error("文件读取错误", e);return ResponseEntity.status(500).body("文件读取错误: " + e.getMessage());} catch (Exception e) {logger.error("意外错误", e);return ResponseEntity.status(500).body("意外错误: " + e.getMessage());}}}