diff --git a/src/main/java/com/xydl/cac/service/impl/DataServiceImpl.java b/src/main/java/com/xydl/cac/service/impl/DataServiceImpl.java
index 8e82ecd..2e1097e 100644
--- a/src/main/java/com/xydl/cac/service/impl/DataServiceImpl.java
+++ b/src/main/java/com/xydl/cac/service/impl/DataServiceImpl.java
@@ -11,6 +11,7 @@ import com.xydl.cac.util.DataUtil;
 import com.xydl.cac.util.DateUtil;
 import lombok.extern.slf4j.Slf4j;
 import org.apache.commons.lang3.StringUtils;
+import org.springframework.cache.annotation.Cacheable;
 import org.springframework.jdbc.core.BeanPropertyRowMapper;
 import org.springframework.jdbc.core.JdbcTemplate;
 import org.springframework.stereotype.Service;
@@ -81,7 +82,8 @@ public class DataServiceImpl implements DataService {
         return result;
     }
 
-    private String getTimeField(String tableName) {
+    @Cacheable(value = "timeField", key = "#tableName")
+    public String getTimeField(String tableName) {
         if (StringUtils.isBlank(schema)) {
             this.getDatabase();
         }