2021.5.2 团队冲刺第五天

今天做了文件下载

下面是代码，下载还是根据url的定位

public class DownloadAndUploadController {
    @Autowired
    private Upload upload;
    @Autowired
    private ImgMapper imgService;
    @RequestMapping("/UploadImg")
    @ResponseBody
    public String UploadImg(MultipartFile file, HttpServletResponse response, HttpServletRequest request) throws IOException {
        upload.uploadOne(staticConfig.UserMail,file);
        return staticMsg.successfulUpload;
    }

    @RequestMapping("/DownloadImg")
    @ResponseBody
    public byte[] downloadImg(String fileName) throws IOException {
        ImgObject imgObject=imgService.getImg(fileName);
        return FileUtil.readFileStreamByBytes(ImageCompression.ImgCompression(imgObject));
    }

    @RequestMapping("/DownloadRealImg")
    @ResponseBody
    public byte[] downloadRealImg(String fileName) throws IOException {
        ImgObject imgObject=imgService.getImg(fileName);
        return FileUtil.readFileByBytes(imgObject.getImgPath()+imgObject.getImgId()+imgObject.getImgName().substring(imgObject.getImgName().lastIndexOf(".")));
    }

    @RequestMapping("/getImgList")
    @ResponseBody
    public String getImgList(String class2){

        JSONArray jsonArray=new JSONArray();
        String str2="#";
        if(class2==null){
            System.out.println("class2==null");
            List<ImgObject> imgObjects=imgService.getUserAllImg(staticConfig.UserMail);
            for (ImgObject imgObject : imgObjects) {
                JSONObject jsonObject=new JSONObject();
                String str=imgObject.getImgPath();
                if(!str2.equals(imgObject.getImgPath().substring(str.indexOf("\")+ 1,str.indexOf("-")).substring(str.lastIndexOf("m")+2))){
                    str2=str.substring(str.indexOf("\")+ 1,str.indexOf("-")).substring(str.lastIndexOf("m")+2);
                    jsonObject.put("title",str2);
                    jsonObject.put("img"," http://octoberimg.viphk.ngrok.org/SmartCloudAlbum_war_exploded/Cloud/DownloadImg?fileName="+imgObject.getImgId());
                    jsonObject.put("imgID",imgObject.getImgId());
                    jsonArray.add(jsonObject);
                }

            }
            return jsonArray.toJSONString();
        }else {
            System.out.println("class2="+class2);
            List<ImgObject> imgObjects=imgService.getUserImgByFile(staticConfig.UserMail,class2);
            if (class2.contains("-"))
            {
                for (ImgObject imgObject : imgObjects) {
                    JSONObject jsonObject=new JSONObject();
                    String str=imgObject.getImgPath();
                    str=str.substring(str.indexOf(class2));
                    str=str.substring(str.indexOf("\")+1);
                    str=str.substring(0,str.indexOf("\"));
                    System.out.println(str);
                    if (!str2.equals(str)){
                        str2=str;
                        jsonObject.put("title",str2);
                        jsonObject.put("img"," http://octoberimg.viphk.ngrok.org/SmartCloudAlbum_war_exploded/Cloud/DownloadImg?fileName="+imgObject.getImgId());
                        jsonObject.put("imgID",imgObject.getImgId());
                        jsonArray.add(jsonObject);
                    }
                }

            }
            for (ImgObject imgObject : imgObjects) {
                JSONObject jsonObject=new JSONObject();
                String str=imgObject.getImgPath();
                //str=str.substring(str.indexOf("-")+1).substring(0,str.indexOf("\"));
                str=str.substring(str.indexOf(class2));
                str=str.substring(0,str.indexOf("\"));
                System.out.println(str);
                if (!str2.equals(str)){
                    str2=str;
                    jsonObject.put("title",str2);
                    jsonObject.put("img"," http://octoberimg.viphk.ngrok.org/SmartCloudAlbum_war_exploded/Cloud/DownloadImg?fileName="+imgObject.getImgId());
                    jsonObject.put("imgID",imgObject.getImgId());
                    jsonArray.add(jsonObject);
                }
            }
            return jsonArray.toJSONString();
        }
    }