修复 url特殊符号无法下载或者输出问题 修复流接入方法 拼接字符导导致下载或者跨域错误问题

server/src/main/java/cn/keking/service/impl/CadFilePreviewImpl.java

@@ -7,10 +7,10 @@ import cn.keking.service.FileHandlerService;
 import cn.keking.service.FilePreview;
 import cn.keking.utils.DownloadUtils;
 import cn.keking.utils.KkFileUtils;
+import cn.keking.utils.WebUtils;
 import cn.keking.web.filter.BaseUrlFilter;
 import org.springframework.stereotype.Service;
 import org.springframework.ui.Model;
-import org.springframework.util.ObjectUtils;
 import org.springframework.util.StringUtils;
 
 import static cn.keking.service.impl.OfficeFilePreviewImpl.getPreviewType;
@@ -70,6 +70,7 @@ public class CadFilePreviewImpl implements FilePreview {
                 }
             }
         }
+        cacheName=  WebUtils.encodeFileName(cacheName);
         if ("tif".equalsIgnoreCase(cadPreviewType)) {
             model.addAttribute("currentUrl", cacheName);
             return TIFF_FILE_PREVIEW_PAGE;