fix bug

themis-exam/src/main/java/com/qmth/themis/exam/websocketTemplete/WebSocketOeMessageTemplete.java

@@ -75,7 +75,7 @@ public class WebSocketOeMessageTemplete {
         if (Objects.isNull(jsonObject.get("progress")) || Objects.equals(jsonObject.get("progress"), "")) {
             throw new BusinessException("答题进度不能为空");
         }
-        Double progress = Double.parseDouble(String.valueOf(jsonObject.get("durationSeconds")));
+        Double progress = Double.parseDouble(String.valueOf(jsonObject.get("progress")));
         if (Objects.isNull(jsonObject.get("durationSeconds")) || Objects.equals(jsonObject.get("durationSeconds"), "")) {
             throw new BusinessException("考试累计用时秒数不能为空");
         }