文件下载加解密

laws-module-system/src/main/java/com/jero/modules/system/controller/CommonController.java

@@ -137,27 +137,43 @@ public class CommonController {
     }
 
     /**
-     * 预览图片&下载文件
+     * 下载文件
      *
      * @param id 传入文件id
      * @param request
      * @param response
      */
     @GetMapping(value = "/download/{id}")
+    public void download(@PathVariable String id,HttpServletRequest request, HttpServletResponse response) {
+        downloadAndView(id, response);
+    }
+
+    /**
+     * 预览图片
+     *
+     * @param id 传入文件id
+     * @param request
+     * @param response
+     */
+    @GetMapping(value = "/view/{id}")
     public void view(@PathVariable String id,HttpServletRequest request, HttpServletResponse response) {
+        downloadAndView(id, response);
+    }
+
+    private void downloadAndView(@PathVariable String id, HttpServletResponse response) {
         // 查询数据表数据是否存在
         LambdaQueryWrapper<OSSFile> queryWrapper = new LambdaQueryWrapper<>();
-        queryWrapper.eq(OSSFile::getId,id);
+        queryWrapper.eq(OSSFile::getId, id);
         OSSFile ossFile = ossFileService.getOne(queryWrapper);
-        if( null == ossFile){
+        if (null == ossFile) {
             throw new JeroBootException("文件不存在..");
         }
         String fileUrl = ossFile.getUrl();
-        if(CommonConstant.UPLOAD_TYPE_LOCAL.equals(uploadType)){
+        if (CommonConstant.UPLOAD_TYPE_LOCAL.equals(uploadType)) {
             //本地下载
             String filePath = uploadpath + File.separator + fileUrl;
             File file = new File(filePath);
-            if(!file.exists()){
+            if (!file.exists()) {
                 response.setStatus(404);
                 throw new JeroBootException("文件不存在..");
             }
@@ -173,12 +189,12 @@ public class CommonController {
                     outputStream.write(buf, 0, len);
                 }
                 response.flushBuffer();
-            }catch (Exception e){
+            } catch (Exception e) {
                 log.error(FILE_VIEW_ERROR + e.getMessage());
                 response.setStatus(404);
                 e.printStackTrace();
             }
-        }else if(CommonConstant.UPLOAD_TYPE_MINIO.equals(uploadType)){
+        } else if (CommonConstant.UPLOAD_TYPE_MINIO.equals(uploadType)) {
             // minio 下载
             // 通过MinioUtil查询时 只需要桶后面的路径
             String minioUrl = MinioUtil.getMinioUrl();
@@ -193,14 +209,14 @@ public class CommonController {
             ) {
                 byte[] buf = new byte[1024];
                 int len;
-                if(inputStream==null) {
+                if (inputStream == null) {
                     return;
                 }
                 while ((len = inputStream.read(buf)) > 0) {
                     outputStream.write(buf, 0, len);
                 }
                 response.flushBuffer();
-            }catch (Exception e){
+            } catch (Exception e) {
                 log.error(FILE_VIEW_ERROR + e.getMessage());
                 response.setStatus(404);
                 e.printStackTrace();