1、教师管理、学生管理bug修复

web/src/main/java/com/ibeetl/jlw/web/StudentController.java

@@ -2205,6 +2205,11 @@ public class StudentController extends BaseController{
             student.setAddTime(null);
             student.setUserId(null);
             student.setOrgId(null);
+
+
+            if (student.getStudentSn().length() >= 16) {
+                return JsonResult.failMessage("输入内容：" + student.getStudentSn() + " 超过16个字符！");
+            }
             boolean success = studentService.edit(student);
             if (success) {
                 return JsonResult.success();