diff --git a/server/src/main/java/cn/keking/service/FileHandlerService.java b/server/src/main/java/cn/keking/service/FileHandlerService.java
index 13db88bb6..cb03992c4 100644
--- a/server/src/main/java/cn/keking/service/FileHandlerService.java
+++ b/server/src/main/java/cn/keking/service/FileHandlerService.java
@@ -204,13 +204,14 @@ private String getPdf2jpgUrl(String pdfFilePath, int index) {
         String baseUrl = BaseUrlFilter.getBaseUrl();
         pdfFilePath = pdfFilePath.replace(fileDir, "");
         String pdfFolder = pdfFilePath.substring(0, pdfFilePath.length() - 4);
-        String urlPrefix;
-        try {
-            urlPrefix = baseUrl + URLEncoder.encode(pdfFolder, uriEncoding).replaceAll("\\+", "%20");
-        } catch (UnsupportedEncodingException e) {
-            logger.error("UnsupportedEncodingException", e);
-            urlPrefix = baseUrl + pdfFolder;
-        }
+        // 移除多余的转义（压缩包中的文件路径/会被转义，导致无法正常预览）
+        String urlPrefix = baseUrl + pdfFolder;
+        // try {
+        //     urlPrefix = baseUrl + URLEncoder.encode(pdfFolder, uriEncoding).replaceAll("\\+", "%20");
+        // } catch (UnsupportedEncodingException e) {
+        //     logger.error("UnsupportedEncodingException", e);
+        //     urlPrefix = baseUrl + pdfFolder;
+        // }
         return urlPrefix + "/" + index + PDF2JPG_IMAGE_FORMAT;
     }
 
@@ -468,7 +469,8 @@ public FileAttribute getFileAttribute(String url, HttpServletRequest req) {
         url = WebUtils.encodeUrlFileName(url);
         if (UrlEncoderUtils.hasUrlEncoded(originFileName)) {  //判断文件名是否转义
             try {
-                originFileName = URLDecoder.decode(originFileName, uriEncoding).replaceAll("\\+", "%20");
+                // 无需转义+号，否则文件名包含+号将无法正常下载资源
+                originFileName = URLDecoder.decode(originFileName, uriEncoding);
             } catch (UnsupportedEncodingException e) {
                 e.printStackTrace();
             }
diff --git a/server/src/main/java/cn/keking/utils/RarUtils.java b/server/src/main/java/cn/keking/utils/RarUtils.java
index a08c1ce6e..dfe343c07 100644
--- a/server/src/main/java/cn/keking/utils/RarUtils.java
+++ b/server/src/main/java/cn/keking/utils/RarUtils.java
@@ -76,14 +76,12 @@ public static boolean judge(char c){
         return (c >= '0' && c <= '9') || (c >= 'a' && c <= 'z' || c >= 'A' && c <= 'Z');
     }
     public static boolean isMessyCode(String strName) {
-        //去除字符串中的空格 制表符 换行 回车
-        Pattern p = Pattern.compile("\\s*|\t*|\r*|\n*");
+        //去除字符串中的空白字符 + # & = 标点符号
+        Pattern p = Pattern.compile("\\s|\\+|#|&|=|\\p{P}");
         Matcher m = p.matcher(strName);
-        String after = m.replaceAll("").replaceAll("\\+", "").replaceAll("#", "").replaceAll("&", "");
-        //去除字符串中的标点符号
-        String temp = after.replaceAll("\\p{P}", "");
+        String after = m.replaceAll("");
         //处理之后转换成字符数组
-        char[] ch = temp.trim().toCharArray();
+        char[] ch = after.trim().toCharArray();
         for (char c : ch) {
             //判断是否是数字或者英文字符
             if (!judge(c)) {
diff --git a/server/src/main/resources/web/compress.ftl b/server/src/main/resources/web/compress.ftl
index add1eb580..d657b1014 100644
--- a/server/src/main/resources/web/compress.ftl
+++ b/server/src/main/resources/web/compress.ftl
@@ -52,7 +52,8 @@
 
     function chooseNode(event, treeId, treeNode) {
         if (!treeNode.isParent) {
-            var path = '${baseUrl}' + treeNode.id + "?kkCompressfileKey=" + '${fileTree}';
+            // 转义特殊字符，解决压缩包内特殊文件名无法预览问题
+            var path = '${baseUrl}' + treeNode.id.split("/").map(name=>encodeURIComponent(name)).join("/") + "?kkCompressfileKey=" + encodeURIComponent('${fileTree}');
             location.href = "${baseUrl}onlinePreview?url=" + encodeURIComponent(Base64.encode(path));
         }
     }