基于SpringBoot+Vue的计算机科学拔尖学生培养基地系统(源码+LW+调试文档+讲解)

    package com.controller;
    
    import java.io.File;
    import java.io.FileNotFoundException;
    import java.io.IOException;
    import java.util.Arrays;
    import java.util.Date;
    import java.util.HashMap;
    import java.util.List;
    import java.util.Map;
    import java.util.Random;
    import java.util.UUID;
    
    import org.apache.commons.io.FileUtils;
    import org.apache.commons.lang3.StringUtils;
    import org.springframework.beans.factory.annotation.Autowired;
    import org.springframework.http.HttpHeaders;
    import org.springframework.http.HttpStatus;
    import org.springframework.http.MediaType;
    import org.springframework.http.ResponseEntity;
    import org.springframework.util.ResourceUtils;
    import org.springframework.web.bind.annotation.PathVariable;
    import org.springframework.web.bind.annotation.RequestBody;
    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 com.annotation.IgnoreAuth;
    import com.baomidou.mybatisplus.mapper.EntityWrapper;
    import com.entity.ConfigEntity;
    import com.entity.EIException;
    import com.service.ConfigService;
    import com.utils.R;
    
    /** * 上传文件映射表
     */
    @RestController
    @RequestMapping("file")
    @SuppressWarnings({"unchecked","rawtypes"})
    public class FileController{
    	@Autowired
    private ConfigService configService;
    	/** * 上传文件
    	 */
    	@RequestMapping("/upload")
    	public R upload(@RequestParam("file") MultipartFile file,String type) throws Exception {
    		if (file.isEmpty()) {
    			throw new EIException("上传文件不能为空");
    		}
    		String fileExt = file.getOriginalFilename().substring(file.getOriginalFilename().lastIndexOf(".")+1);
    		File path = new File(ResourceUtils.getURL("classpath:static").getPath());
    		if(!path.exists()) {
    		    path = new File("");
    		}
    		File upload = new File(path.getAbsolutePath(),"/upload/");
    		if(!upload.exists()) {
    		    upload.mkdirs();
    		}
    		String fileName = new Date().getTime()+"."+fileExt;
    		File dest = new File(upload.getAbsolutePath()+"/"+fileName);
    		file.transferTo(dest);
    		if(StringUtils.isNotBlank(type) && type.equals("1")) {
    			ConfigEntity configEntity = configService.selectOne(new EntityWrapper<ConfigEntity>().eq("name", "faceFile"));
    			if(configEntity==null) {
    				configEntity = new ConfigEntity();
    				configEntity.setName("faceFile");
    				configEntity.setValue(fileName);
    			} else {
    				configEntity.setValue(fileName);
    			}
    			configService.insertOrUpdate(configEntity);
    		}
    		return R.ok().put("file", fileName);
    	}
    	
    	/** * 下载文件
    	 */
    	@IgnoreAuth
    	@RequestMapping("/download")
    	public ResponseEntity<byte[]> download(@RequestParam String fileName) {
    		try {
    			File path = new File(ResourceUtils.getURL("classpath:static").getPath());
    			if(!path.exists()) {
    			    path = new File("");
    			}
    			File upload = new File(path.getAbsolutePath(),"/upload/");
    			if(!upload.exists()) {
    			    upload.mkdirs();
    			}
    			File file = new File(upload.getAbsolutePath()+"/"+fileName);
    			if(file.exists()){
    				/*if(!fileService.canRead(file, SessionManager.getSessionUser())){
    					getResponse().sendError(403);
    				}*/
    				HttpHeaders headers = new HttpHeaders();
    			    headers.setContentType(MediaType.APPLICATION_OCTET_STREAM);    
    			    headers.setContentDispositionFormData("attachment", fileName);    
    			    return new ResponseEntity<byte[]>(FileUtils.readFileToByteArray(file),headers, HttpStatus.CREATED);
    			}
    		} catch (IOException e) {
    			e.printStackTrace();
    		}
    		return new ResponseEntity<byte[]>(HttpStatus.INTERNAL_SERVER_ERROR);
    	}
    	
    }