rename cache keys.

examcloud-core-examwork-service/src/main/java/cn/com/qmth/examcloud/core/examwork/service/cache/ExamPropertyCache.java

@@ -5,6 +5,7 @@ import cn.com.qmth.examcloud.commons.helpers.DynamicEnumManager;
 import cn.com.qmth.examcloud.core.examwork.base.enums.ExamProperty;
 import cn.com.qmth.examcloud.core.examwork.dao.ExamPropertyRepo;
 import cn.com.qmth.examcloud.core.examwork.dao.entity.ExamPropertyEntity;
+import cn.com.qmth.examcloud.support.CacheConstants;
 import cn.com.qmth.examcloud.support.cache.bean.ExamPropertyCacheBean;
 import cn.com.qmth.examcloud.web.cache.RandomObjectRedisCache;
 import org.springframework.beans.factory.annotation.Autowired;
@@ -42,7 +43,7 @@ public class ExamPropertyCache extends RandomObjectRedisCache<ExamPropertyCacheB
 
     @Override
     protected String getKeyPrefix() {
-        return "E_EXAM_PROP:";
+        return CacheConstants.CACHE_E_EXAM_PROP;
     }
 
     @Override