MultipartFile 转 java.io.File

一般用来File的直接操作不产生系统文件，只产生一个临时文件

import com.chenkang.decheng.util.WebLfasrDemo;
import org.springframework.web.bind.annotation.CrossOrigin;
import org.springframework.web.bind.annotation.PostMapping;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RestController;
import org.springframework.web.multipart.MultipartFile;

import java.io.File;
import java.io.IOException;
import java.util.UUID;

@RestController
@RequestMapping(value = "audio",produces = "text/plain;charset=UTF-8")
@CrossOrigin
public class AudioController {


    @PostMapping
    public String  uploadAudio(MultipartFile audio) throws IOException {
        // 获取文件名
        String fileName = audio.getOriginalFilename();
        // 获取文件后缀
        String prefix=fileName.substring(fileName.lastIndexOf("."));
        // 用uuid作为文件名，防止生成的临时文件重复
        File excelFile = File.createTempFile(UUID.randomUUID().toString(),prefix);
        // MultipartFile to File
        System.out.println(excelFile.getPath());
        audio.transferTo(excelFile);
        //程序结束时，删除临时文件
        return WebLfasrDemo.transformAudio(excelFile);
    }
}

标签：web,java,springframework,excelFile,File,org,import,MultipartFile
来源： https://blog.csdn.net/weixin_38845058/article/details/100670632