bug fix

examcloud-core-oe-student-service/src/main/java/cn/com/qmth/examcloud/core/oe/student/service/impl/FaceBiopsyServiceImpl.java

@@ -354,12 +354,18 @@ public class FaceBiopsyServiceImpl implements FaceBiopsyService {
                     //如果第一步检测部分失败(照片非本人或检测中多人脸)，需要结束考试
                     Map faceCompareResult = JsonUtil.fromJson(stepInfo.getResultJson(), Map.class);
                     if (null != faceCompareResult) {
-                        if (null == faceCompareResult.get("isStranger") || null == faceCompareResult.get("isPass") ||
+                        if (null == faceCompareResult.get("isPass") ||
                                 null == faceCompareResult.get("existsSystemError")) {
                             throw new StatusException("201007", "活体检测第一步检测结果的json串格式不正确");
                         }
 
-                        Boolean isStranger = Boolean.valueOf(faceCompareResult.get("isStranger").toString());
+                        Boolean isStranger;
+                        if (null == faceCompareResult.get("isStranger")) {
+                            isStranger = false;
+                        } else {
+                            isStranger = Boolean.valueOf(faceCompareResult.get("isStranger").toString());
+                        }
+
                         Boolean isPass = Boolean.valueOf(faceCompareResult.get("isPass").toString());
                         Boolean existsSystemError = Boolean.valueOf(faceCompareResult.get("existsSystemError").toString());
                         //case1.1.有陌生人(即多人脸)，不管是否比对成功，直接结束考试