Merge pull request #310 from gitchenjh/master

修复文件名包含空格时不能预览 #294

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

@@ -32,7 +32,7 @@ public class DownloadUtils {
      * @return 本地文件绝对路径
      */
     public static ReturnResponse<String> downLoad(FileAttribute fileAttribute, String fileName) {
-        String urlStr = fileAttribute.getUrl();
+        String urlStr = fileAttribute.getUrl().replaceAll("\\+", "%20");
         ReturnResponse<String> response = new ReturnResponse<>(0, "下载成功!!!", "");
         String realPath = DownloadUtils.getRelFilePath(fileName, fileAttribute);
         try {