SpringBoot的Class目录保存上传文件

我会带着你远行 2023-10-10 20:20 41阅读 0赞

## SpringBoot的Class目录保存上传文件 ##

package cn.js.Controller;
    
    import org.apache.commons.codec.digest.DigestUtils;
    import org.docx4j.openpackaging.exceptions.Docx4JException;
    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 java.io.*;
    import java.net.URL;
    import java.util.UUID;
    
    /**
     * @Description:   在 SpringBoot的class文件中创一个保存文件的目录
     * @Author: com.js
     * @CreateTime: 2023-05-22  17:02
     * @Version: 1.0
     * @introduce：
     */
    
    @RequestMapping("/filesave")
    @RestController
    public class FileUpdateTest {
        
    
        @PostMapping("/supdate")
        public String savefile(@RequestParam("file") MultipartFile file) throws IOException{
        
    
    
    
            String filename=file.getOriginalFilename();
            // 获取资源路径
            URL resourceUrl = getClass().getResource("/");
    
    // 构建文件保存目录
            File directory = new File(resourceUrl.getFile() + "/saved_files");
            directory.mkdirs();
    
            //生成uuid
            UUID uuid = UUID.randomUUID();
            String uuidStr = uuid.toString().replace("-", "");
            String hash = DigestUtils.md5Hex(uuidStr);
            String uid= hash.substring(0, 8);
    
    
    // 构建要保存的文件
            String path = directory.getPath();
            System.out.println("文件路径："+path);
            File fileToSave = new File(directory.getPath()  +File.separator + uid+filename);
    
    // 将内容写入文件
    
    
            FileOutputStream fos = new FileOutputStream(fileToSave);
    
            FileInputStream fis =(FileInputStream) file.getInputStream();
    
            byte[] buf = new byte[1024];
            int len;
    
            while ((len = fis.read(buf)) != -1) {
        
                fos.write(buf, 0, len);
            }
            fis.close();
    
            fos.close();
    
            File feile=new File(path+File.separator + uid+filename);
            //删除文件
            feile.delete();
    
    
    
    
    
              return "保存成功";
            }
    
    
    }