springboot 头像上传 文件流保存 文件流返回浏览器查看 区分操作系统 windows 7 or linux

  1 //我的会员中心  头像上传接口
  2 /*windows 调试*/
  3 @Value("${appImg.location}")
  4 private String winPathPic;
  5 /*linux 使用*/
  6 @Value("${img.location}")
  7 private String linuxPathPic;
  8 
  9 @PostMapping(value = "/file")
 10 public String file() {
 11     return "file";
 12 }
 13 
 14 @ApiOperation(value = "会员头像文件上传")
 15 @ApiImplicitParams({
 16 })
 17 @RequestMapping(value = "/appMbrImgUploadFile", method = RequestMethod.POST)
 18 @ResponseBody
 19 public Object appMbrImgUploadFile(@RequestParam(value = "file") MultipartFile file, HttpServletRequest request) {
 20     Subject currentUser = SecurityUtils.getSubject();
 21     ShiroUser shiroUser = null;
 22     Session session = currentUser.getSession();
 23     String mobile = session.getAttribute("username") == null ? "" : String.valueOf(session.getAttribute("username"));
 24     if (mobile.equals("")) {
 25         return setModelMap(new ModelMap(), HttpCode.EFFECT_OF_TOKEN.value(), "token已经失效，请登录", null);
 26     }
 27     SimpleDateFormat sdf = new SimpleDateFormat("yyyyMMdd");
 28     //时间路径
 29     String fileTime = sdf.format(new Date());
 30     // 文件名
 31     String fileName = file.getOriginalFilename();
 32     // 后缀名
 33     String suffixName = fileName.substring(fileName.lastIndexOf("."));
 34     //图片格式校验
 35     String reg = "(.png)$";
 36     Pattern pattern = Pattern.compile(reg);
 37     Matcher matcher = pattern.matcher(suffixName);
 38     boolean valiRst = matcher.find();
 39     if (!valiRst) {
 40         return setModelMap(new ModelMap(), HttpCode.PICTURE_FORMAT_CHECK_EXCEPTION.value(), "图片格式异常", null);
 41     }
 42     if (file.isEmpty()) {
 43         System.out.println("文件为空");
 44         logger.error("文件流为空异常");
 45         return setModelMap(new ModelMap(), HttpCode.FILE_STREAM_EMPTY.value(), "文件流为空异常", null);
 46     }
 47     //判断操作系统
 48     String os = System.getProperty("os.name");
 49     System.out.println(os);
 50     //定义路径
 51     String picPathReal="";
 52     if(os!=null&&os.contains("Windows 7")){
 53         System.out.println("Windows 7");
 54         picPathReal=winPathPic;
 55     }else{
 56         //linux
 57         picPathReal=linuxPathPic;
 58     }
 59     // 新文件名
 60     fileName = UUID.randomUUID() + suffixName;
 61     // 文件目录
 62     String diectFile=picPathReal+"/"+fileTime;
 63     File dest = new File(diectFile);
 64     dest.setWritable( true, false);
 65     if (!dest.exists()) {
 66         dest.mkdirs();
 67     }
 68     //创建文件 图片
 69     File filePic = new File(diectFile+File.separator, fileName);
 70     try {
 71         file.transferTo(filePic);
 72     } catch (IOException e) {
 73         e.printStackTrace();
 74     }
 75     LSysMember sysMember = new LSysMember();
 76     LSysMemberVo userInfo = new LSysMemberVo();
 77     //返回指定图片文件路径   完整接口地址
 78     //保存地址处理
 79     String  savePath="/lSysMember/noLogin/readImageFile?url="+picPathReal+File.separator+fileTime+File.separator+fileName;
 80     //String filename = "/lSysMember/noLogin/readImageFile?url="+savePath+File.separator + fileTime + File.separator + fileName;
 81     //查询会员基本信息
 82     sysMember = memberService.findLoginMemberInfo(mobile);
 83     //执行更新头像更新操作
 84     sysMember.setAvatar(savePath);
 85     try {
 86         sysMember = memberService.appMbrImgUploadFile(sysMember);
 87         userInfo = memberService.findLoginMemberInfoByMobile(mobile);
 88     } catch (Exception e) {
 89         logger.error("请求异常----", e);
 90         throw new CallChainException();
 91     }
 92     //更新session
 93     session.setAttribute("shiroUser", userInfo);
 94     return setSuccessModelMap(savePath);
 95 }
 96 
 97 
 98 @ApiOperation(value = "返回指定地址的文件流")
 99 @ApiImplicitParams({
100         @ApiImplicitParam(name = "url", value = "图片地址", required = true,
101                 paramType = "query", defaultValue = "\\20180912\\7cd2e1a3-a087-4e25-aac8-2bdf8e274c6f.png"),
102 })
103 @RequestMapping(value = "/noLogin/readImageFile",method =RequestMethod.GET)
104 @ResponseBody
105 public void getUrlFile(String url, HttpServletRequest request, HttpServletResponse response) {
106     File file = new File(url);
107     // 后缀名
108     String suffixName = url.substring(url.lastIndexOf("."));
109     //判断文件是否存在如果不存在就返回默认图标
110     if (!(file.exists() && file.canRead())) {
111         file = new File(request.getSession().getServletContext().getRealPath("/")
112                 + "resource/icons/auth/root.png");
113     }
114     FileInputStream inputStream = null;
115     try {
116         inputStream = new FileInputStream(file);
117         byte[] data = new byte[(int) file.length()];
118         int length = inputStream.read(data);
119         inputStream.close();
120         //setContentType("text/plain; charset=utf-8"); 文本
121         response.setContentType("image/png;charset=utf-8");
122         OutputStream stream = response.getOutputStream();
123         stream.write(data);
124         stream.flush();
125         stream.close();
126     } catch (FileNotFoundException e) {
127         e.printStackTrace();
128     } catch (IOException e) {
129         e.printStackTrace();
130     }
131 }