将csv文件传递到SpringBoot java服务器

@RestController
public class FileUploadController {

    @PostMapping("/upload")
    public String handleFileUpload(@RequestParam("file") MultipartFile file) {
        // 处理CSV文件
        // ...
        return "File uploaded successfully!";
    }
}

import org.springframework.web.multipart.MultipartFile;

// ...

@PostMapping("/upload")
public String handleFileUpload(@RequestParam("file") MultipartFile file) {
    if (!file.isEmpty()) {
        try {
            // 读取CSV文件内容
            byte[] bytes = file.getBytes();
            String csvContent = new String(bytes);
            
            // 处理CSV文件内容
            // ...
            
            return "File uploaded successfully!";
        } catch (IOException e) {
            e.printStackTrace();
            return "Failed to upload file!";
        }
    } else {
        return "File is empty!";
    }
}

import org.springframework.util.StringUtils;

// ...

@PostMapping("/upload")
public String handleFileUpload(@RequestParam("file") MultipartFile file) {
    if (!file.isEmpty()) {
        try {
            // 生成文件名
            String fileName = StringUtils.cleanPath(file.getOriginalFilename());
            
            // 保存文件到指定路径
            String uploadDir = "/path/to/upload/directory/";
            File dest = new File(uploadDir + fileName);
            file.transferTo(dest);
            
            return "File uploaded successfully!";
        } catch (IOException e) {
            e.printStackTrace();
            return "Failed to upload file!";
        }
    } else {
        return "File is empty!";
    }
}