修复: 文件名含有特殊字符时无法预览

server/src/main/java/cn/keking/service/FileHandlerService.java

@@ -273,6 +273,7 @@ public class FileHandlerService {
         attribute.setType(type);
         attribute.setName(fileName);
         attribute.setSuffix(suffix);
+        url = WebUtils.encodeUrlFileName(url);
         attribute.setUrl(url);
         if (req != null) {
             String officePreviewType = req.getParameter("officePreviewType");

server/src/main/java/cn/keking/utils/WebUtils.java

@@ -2,8 +2,10 @@ package cn.keking.utils;
 
 import io.mola.galimatias.GalimatiasParseException;
 
+import java.io.UnsupportedEncodingException;
 import java.net.MalformedURLException;
 import java.net.URL;
+import java.net.URLEncoder;
 import java.util.HashMap;
 import java.util.Map;
 
@@ -97,4 +99,23 @@ public class WebUtils {
         String fileName = nonPramStr.substring(nonPramStr.lastIndexOf("/") + 1);
         return KkFileUtils.suffixFromFileName(fileName);
     }
+
+    /**
+     * 对url中的文件名进行UTF-8编码
+     *
+     * @param url url
+     * @return 文件名编码后的url
+     */
+    public static String encodeUrlFileName(String url) {
+        String noQueryUrl = url.substring(0, url.contains("?") ? url.indexOf("?") : url.length());
+        int fileNameStartIndex = noQueryUrl.lastIndexOf('/') + 1;
+        int fileNameEndIndex = noQueryUrl.lastIndexOf('.');
+        String encodedFileName;
+        try {
+            encodedFileName = URLEncoder.encode(noQueryUrl.substring(fileNameStartIndex, fileNameEndIndex), "UTF-8");
+        } catch (UnsupportedEncodingException e) {
+            return null;
+        }
+        return url.substring(0, fileNameStartIndex) + encodedFileName + url.substring(fileNameEndIndex);
+    }
 }