From 86abfc7d0a96f627853273256db4bfb501b866da Mon Sep 17 00:00:00 2001
From: yupeng <roc__yu@163.com>
Date: 星期三, 05 三月 2025 17:40:56 +0800
Subject: [PATCH] feat: 增加上传目录参数、新增图片回显接口

---
 ruoyi-admin/src/main/java/com/ruoyi/web/controller/tool/TencentCosUtil.java |   84 ++++++++++++++++++++++--------------------
 1 files changed, 44 insertions(+), 40 deletions(-)

diff --git a/ruoyi-admin/src/main/java/com/ruoyi/web/controller/tool/TencentCosUtil.java b/ruoyi-admin/src/main/java/com/ruoyi/web/controller/tool/TencentCosUtil.java
index d74cf21..3834733 100644
--- a/ruoyi-admin/src/main/java/com/ruoyi/web/controller/tool/TencentCosUtil.java
+++ b/ruoyi-admin/src/main/java/com/ruoyi/web/controller/tool/TencentCosUtil.java
@@ -60,7 +60,7 @@
     /**
      * 上传文件,并存入sys_file,返回文件的主键ID
      * @param file
-     * @param folder
+     * @param folder  格式:/xxxxx,/xxxx/xxxx ,最后不用加斜杠
      * @return
      */
     public TFile upload(MultipartFile file, String folder){
@@ -75,12 +75,11 @@
             String fileType = originalFilename.substring(originalFilename.lastIndexOf("."));
             //使用UUID工具  创建唯一名称,放置文件重名被覆盖,在拼接上上命令获取的文件类型
             String fileName = UUID.randomUUID() + fileType;
-
-            String name = (StringUtils.isNotEmpty(folder)?
+            String filePath = (StringUtils.isNotEmpty(folder)?
                     folder+"/"
                     :"/default/") + DateUtil.format(new Date(),NORM_DATE_FORMAT)+"/"+fileName;
             // 指定文件上传到 COS 上的路径,即对象键。最终文件会传到存储桶名字中的images文件夹下的fileName名字
-            String key = cosConfig.getLocation()+"/" + fileName;
+            filePath = cosConfig.getLocation() + filePath;
             // 创建上传Object的Metadata
             ObjectMetadata objectMetadata = new ObjectMetadata();
             // - 使用输入流存储,需要设置请求长度
@@ -90,12 +89,12 @@
             // - 设置Content-Type
             objectMetadata.setContentType(fileType);
             //上传文件
-            cosClient.putObject(cosConfig.getBucketName(), key, inputStream, objectMetadata);
+            cosClient.putObject(cosConfig.getBucketName(), filePath, inputStream, objectMetadata);
             TFile tFile = new TFile();
-            tFile.setFileName(name);
+            tFile.setFileName(filePath);
             tFile.setRealName(originalFilename);
             tFile.setFileType(fileType);
-            tFile.setUrl(cosConfig.getRootSrc()+key);
+            tFile.setUrl(cosConfig.getRootSrc()+filePath);
             tFile.setContentType(file.getContentType());
             tFile.setFileSize(file.getSize());
             sysFileService.save(tFile);
@@ -113,7 +112,7 @@
      * @param file
      * @return 返回文件的浏览全路径
      */
-    public String upLoadFile(MultipartFile file) {
+    public String upLoadFile(MultipartFile file,String folder) {
         try {
             // 获取上传的文件的输入流
             InputStream inputStream = file.getInputStream();
@@ -124,7 +123,11 @@
             //使用UUID工具  创建唯一名称,放置文件重名被覆盖,在拼接上上命令获取的文件类型
             String fileName = UUID.randomUUID() + fileType;
             // 指定文件上传到 COS 上的路径,即对象键。最终文件会传到存储桶名字中的images文件夹下的fileName名字
-            String key = cosConfig.getLocation()+"/" + fileName;
+            String filePath = (StringUtils.isNotEmpty(folder)?
+                    folder+"/"
+                    :"/default/") + DateUtil.format(new Date(),NORM_DATE_FORMAT)+"/"+fileName;
+
+            filePath = cosConfig.getLocation()+"/" + filePath;
             // 创建上传Object的Metadata
             ObjectMetadata objectMetadata = new ObjectMetadata();
             // - 使用输入流存储,需要设置请求长度
@@ -134,9 +137,9 @@
             // - 设置Content-Type
             objectMetadata.setContentType(fileType);
             //上传文件
-            PutObjectResult putResult = cosClient.putObject(cosConfig.getBucketName(), key, inputStream, objectMetadata);
+            PutObjectResult putResult = cosClient.putObject(cosConfig.getBucketName(), filePath, inputStream, objectMetadata);
             // 创建文件的网络访问路径
-            String url = cosConfig.getRootSrc() + key;
+            String url = cosConfig.getRootSrc() + filePath;
             return url;
         } catch (Exception e) {
             e.printStackTrace();
@@ -155,15 +158,6 @@
         HttpServletResponse response = WebUtils.response();
         String replace = file.replace(cosConfig.getRootSrc(), "");
         response.setHeader("Access-Control-Expose-Headers","File-Type");
-        COSCredentials cred = new BasicCOSCredentials(
-                cosConfig.getSecretId(),
-                cosConfig.getSecretKey());
-        // 2.1 设置存储桶的地域(上文获得)
-        Region region = new Region(cosConfig.getBucketAddr());
-        ClientConfig clientConfig = new ClientConfig(region);
-        // 2.2 使用https协议传输
-        clientConfig.setHttpProtocol(HttpProtocol.https);
-        COSClient cosClient = new COSClient(cred, clientConfig);
         try {
             // 5. 下载文件并获取输入流
             InputStream inputStream = cosClient.getObject(cosConfig.getBucketName(), replace).getObjectContent();
@@ -184,15 +178,6 @@
     public String downLoadFileImg(String file) {
         byte[] data = null;
         String replace = file.replace(cosConfig.getRootSrc(), "");
-        COSCredentials cred = new BasicCOSCredentials(
-                cosConfig.getSecretId(),
-                cosConfig.getSecretKey());
-        // 2.1 设置存储桶的地域(上文获得)
-        Region region = new Region(cosConfig.getBucketAddr());
-        ClientConfig clientConfig = new ClientConfig(region);
-        // 2.2 使用https协议传输
-        clientConfig.setHttpProtocol(HttpProtocol.https);
-        COSClient cosClient = new COSClient(cred, clientConfig);
         try {
             // 5. 下载文件并获取输入流
             InputStream inputStream = cosClient.getObject(cosConfig.getBucketName(), replace).getObjectContent();
@@ -213,22 +198,39 @@
         return Base64.getEncoder().encodeToString(data);
     }
 
-    public void download(TFile file) {
+    public void download(String fileUrl) {
         HttpServletResponse response = WebUtils.response();
-        COSCredentials cred = new BasicCOSCredentials(
-                cosConfig.getSecretId(),
-                cosConfig.getSecretKey());
-        // 2.1 设置存储桶的地域(上文获得)
-        Region region = new Region(cosConfig.getBucketAddr());
-        ClientConfig clientConfig = new ClientConfig(region);
-        // 2.2 使用https协议传输
-        clientConfig.setHttpProtocol(HttpProtocol.https);
-        COSClient cosClient = new COSClient(cred, clientConfig);
+        fileUrl = fileUrl.replace(cosConfig.getRootSrc(), "");
+
             // 5. 下载文件并获取输入流
-        COSObject object = cosClient.getObject(cosConfig.getBucketName(), file.getUrl());
+        COSObject object = cosClient.getObject(cosConfig.getBucketName(),fileUrl);
         try (
             InputStream is = object.getObjectContent();
              OutputStream os = response.getOutputStream()
+        ) {
+            String fileName = fileUrl.substring(fileUrl.lastIndexOf("/"));
+            response.setContentType(object.getObjectMetadata().getContentType() + ";charset=utf-8");
+            String filename = new String(fileName.getBytes("UTF-8"), "ISO-8859-1");
+            response.addHeader("Content-Disposition", "attachment;filename=" + filename);
+            response.addHeader("Content-Length", "" + object.getObjectMetadata().getContentLength());
+            int len = 0;
+            byte[] buffer = new byte[2048];
+            while ((len = is.read(buffer)) > 0) {
+                os.write(buffer, 0, len);
+            }
+            os.flush();
+        } catch (IOException e) {
+            log.error("读取cos图片发生异常", e);
+        }
+    }
+
+    public void download(TFile file) {
+        HttpServletResponse response = WebUtils.response();
+        // 5. 下载文件并获取输入流
+        COSObject object = cosClient.getObject(cosConfig.getBucketName(), file.getFileName());
+        try (
+                InputStream is = object.getObjectContent();
+                OutputStream os = response.getOutputStream()
         ) {
             response.setContentType(file.getContentType() + ";charset=utf-8");
             String filename = new String(file.getRealName().getBytes("UTF-8"), "ISO-8859-1");
@@ -244,4 +246,6 @@
             log.error("读取cos图片发生异常", e);
         }
     }
+
+
 }
\ No newline at end of file

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