feat(数据中心): 新增历史记录和数据分析查询

springboot/fastbee-common/src/main/java/com/fastbee/common/utils/DateUtils.java

@@ -230,4 +230,14 @@ public class DateUtils extends org.apache.commons.lang3.time.DateUtils
         System.out.println(s1);
 
     }
+
+    /**
+     * 日期去除毫秒
+     * @param time 时间
+     * @return java.util.Date
+     */
+    public static Date dateRemoveMs(Date time) {
+        String s = DateUtils.parseDateToStr(DateUtils.YYYY_MM_DD_HH_MM_SS, time);
+        return DateUtils.dateTime(DateUtils.YYYY_MM_DD_HH_MM_SS, s);
+    }
 }

springboot/fastbee-common/src/main/java/com/fastbee/common/utils/collection/CollectionUtils.java

@@ -229,4 +229,40 @@ public class CollectionUtils {
     public static <T> Collection<T> singleton(T deptId) {
         return deptId == null ? Collections.emptyList() : Collections.singleton(deptId);
     }
+
+    /**
+     * 开始分页
+     *
+     * @param list  传入的list集合
+     * @param pageNum  页码
+     * @param pageSize 每页多少条数据
+     * @return
+     */
+    public static List startPage(List list, Integer pageNum,
+                                 Integer pageSize) {
+        if (list == null) {
+            return null;
+        }
+        if (list.size() == 0) {
+            return null;
+        }
+        Integer count = list.size(); // 记录总数
+        Integer pageCount = 0; // 页数
+        if (count % pageSize == 0) {
+            pageCount = count / pageSize;
+        } else {
+            pageCount = count / pageSize + 1;
+        }
+        int fromIndex = 0; // 开始索引
+        int toIndex = 0; // 结束索引
+        if (!pageNum.equals(pageCount)) {
+            fromIndex = (pageNum - 1) * pageSize;
+            toIndex = fromIndex + pageSize;
+        } else {
+            fromIndex = (pageNum - 1) * pageSize;
+            toIndex = count;
+        }
+        List pageList = list.subList(fromIndex, toIndex);
+        return pageList;
+    }
 }