package com.example.fuzzControll.tools; import com.example.fuzzControll.conf.SpringContextUtil; import com.example.fuzzControll.conf.SeedProperties; import com.example.fuzzControll.exception.FileException; import lombok.extern.slf4j.Slf4j; import org.springframework.web.multipart.MultipartFile; import java.io.BufferedInputStream; import java.io.BufferedOutputStream; import java.io.FileOutputStream; import java.io.InputStream; @Slf4j public class FileTools { SeedProperties properties = (SeedProperties) SpringContextUtil.getBean("seedProperties"); public void load(MultipartFile file) throws FileException { if (file == null) { throw new FileException("upload file is null !"); } try (InputStream inputStream = file.getInputStream(); FileOutputStream outputStream = new FileOutputStream(properties.getSeedPath() + "/" + file.getOriginalFilename());) { BufferedInputStream bufferedInputStream = new BufferedInputStream(inputStream); BufferedOutputStream bufferedOutputStream = new BufferedOutputStream(outputStream); byte[] buffer = new byte[1024]; int bytesRead; while ((bytesRead = bufferedInputStream.read(buffer)) != -1) { bufferedOutputStream.write(buffer, 0, bytesRead); } } catch (Exception e) { e.printStackTrace(); throw new FileException("write file error !"); } } }