请问下如何spring boot 如何提供下载MP3和wav文件接口，同时内容正确即下载后能播放？

Question

请问下如何spring boot 如何提供下载MP3和wav文件接口，同时内容正确即下载后能播放？

Answer 1

参考下面

import org.springframework.core.io.FileSystemResource;
import org.springframework.core.io.Resource;
import org.springframework.http.HttpHeaders;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.PathVariable;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
@RequestMapping("/api")
public class FileController {

    @GetMapping("/download/{fileName:.+}")
    public ResponseEntity<Resource> downloadFile(@PathVariable String fileName) {
        // 设置文件路径
        String filePath = "/path/to/files/" + fileName;

        // 创建文件资源
        Resource resource = new FileSystemResource(filePath);

        // 检查文件是否存在
        if (resource.exists()) {
            // 设置响应头部
            HttpHeaders headers = new HttpHeaders();
            headers.add(HttpHeaders.CONTENT_DISPOSITION, "attachment; filename=" + fileName);
            headers.setContentType(MediaType.APPLICATION_OCTET_STREAM);

            // 返回响应实体
            return ResponseEntity.ok()
                    .headers(headers)
                    .body(resource);
        } else {
            // 文件不存在时返回404错误
            return ResponseEntity.notFound().build();
        }
    }
}