【3.0】11-1迭代：文件字符串长度限制20

haoban-manage3-web/src/main/java/com/gic/haoban/manage/web/controller/UploadController.java

@@ -40,6 +40,9 @@ public class UploadController extends WebBaseController{
         // 未加密前文件名称
         String mediaName = file.getOriginalFilename();
         mediaName = mediaName.substring(0, mediaName.lastIndexOf("."));
+        if (mediaName.length() > 20) {
+            mediaName = mediaName.substring(0, 20);
+        }
         String suffix = name.substring(name.lastIndexOf(".") + 1);
         name = SecureUtil.md5(name) + "." + suffix;
         String location = System.getProperty( "user.dir" )+"/data/tmp/";