diff --git a/src/main/java/com/xydl/cac/service/DataService.java b/src/main/java/com/xydl/cac/service/DataService.java
index 0d1f9e9..8a0149c 100644
--- a/src/main/java/com/xydl/cac/service/DataService.java
+++ b/src/main/java/com/xydl/cac/service/DataService.java
@@ -14,9 +14,7 @@ public interface DataService {
 
     List<ColumnModel> getDataTableColumns(String tableName) throws Exception;
 
-    OnePage<Map<String, Object>> getData(NSensor sensor, List<ModevTypePoint> points, ConditionModel model);
-
-    OnePage<Map<String, Object>> getDataByDate(NSensor sensor, List<ModevTypePoint> points, ConditionModel model, int dayPerPage) throws Exception;
+    OnePage<Map<String, Object>> getData(NSensor sensor, List<ModevTypePoint> points, ConditionModel model) throws Exception;
 
     void clearAllBind();
 }
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 0c72734..3de3ea8 100644
--- a/src/main/java/com/xydl/cac/service/impl/DataServiceImpl.java
+++ b/src/main/java/com/xydl/cac/service/impl/DataServiceImpl.java
@@ -86,8 +86,66 @@ public class DataServiceImpl implements DataService {
         schema = list.get(0);
     }
 
+
     @Override
-    public OnePage<Map<String, Object>> getData(NSensor sensor, List<ModevTypePoint> points, ConditionModel model) {
+    public OnePage<Map<String, Object>> getData(NSensor sensor, List<ModevTypePoint> points, ConditionModel model) throws Exception {
+        if (model.getNumPerDay() != null && model.getNumPerDay() > 0) {
+            OnePage<Map<String, Object>> page;
+            long totalDays = 0;
+            // 需要抽取数据
+            if (model.getPageNum() != null || model.getPageSize() != null) {
+
+                // 当前一页
+                int dayPerPage = model.getPageSize() / model.getNumPerDay();
+                if (dayPerPage < 1) {
+                    dayPerPage = 1;
+                }
+
+                // 处理开始和结束时间
+                Date end = model.getEndTime();
+                if (end == null) {
+                    end = new Date();
+                }
+                end = DateUtil.addDay(end, 1);
+                end = DateUtil.getDayZero(end);
+                model.setEndTime(end);
+                if (model.getStartTime() != null) {
+                    totalDays = DateUtil.getDifferenceInDays(model.getStartTime(), model.getEndTime());
+                }
+
+                if (model.getPageNum() > 1) {
+                    int p = model.getPageNum() - 1;
+                    end = DateUtil.addDay(end, -dayPerPage * p);
+                }
+                model.setEndTime(end);
+                Date start = DateUtil.addDay(end, -dayPerPage);
+                if (model.getStartTime() == null || start.compareTo(model.getStartTime()) > 0) {
+                    model.setStartTime(start);
+                }
+
+                page = this.doSqlData(sensor, points, model);
+                page.setTotal(totalDays * model.getNumPerDay());
+
+            } else {
+                // 全量
+                page = this.doSqlData(sensor, points, model);
+            }
+
+            // 从数据里每天抽取num条
+            List<Map<String, Object>> content = DataUtil.pickNumPerDay(page.getContent(), model.getNumPerDay());
+            page.setContent(content);
+
+            page.setPageNum(model.getPageNum());
+            page.setPageSize(content.size());
+            return page;
+        } else {
+            // 不抽取数据
+            OnePage<Map<String, Object>> page = this.doSqlData(sensor, points, model);
+            return page;
+        }
+    }
+
+    private OnePage<Map<String, Object>> doSqlData(NSensor sensor, List<ModevTypePoint> points, ConditionModel model) {
         String devField = DataTable.getDevidField(sensor.getTableName());
         String timeField = DataTable.getTimeField(sensor.getTableName());
         OnePage result = new OnePage();
@@ -126,54 +184,6 @@ public class DataServiceImpl implements DataService {
         return result;
     }
 
-    @Override
-    public OnePage<Map<String, Object>> getDataByDate(NSensor sensor, List<ModevTypePoint> points, ConditionModel model, int dayPerPage) throws Exception {
-
-        // 处理开始和结束时间
-        Date end = model.getEndTime();
-        if (end == null) {
-            end = new Date();
-        }
-        end = DateUtil.addDay(end, 1);
-        end = DateUtil.getDayZero(end);
-        model.setEndTime(end);
-
-        Date start = model.getStartTime();
-        if (start == null) {
-            start = DateUtil.addMonth(new Date(), -1);
-        }
-        start = DateUtil.getDayZero(start);
-        model.setStartTime(start);
-
-        long daysBetweenDates = DateUtil.getDifferenceInDays(start, end);
-
-        // 本次查询的时间范围
-        ConditionModel newmodel = new ConditionModel();
-        if (daysBetweenDates > dayPerPage) {
-            if (model.getPageNum() > 1) {
-                int p = model.getPageNum() - 1;
-                end = DateUtil.addDay(end, -dayPerPage * p);
-            }
-            newmodel.setEndTime(end);
-            start = DateUtil.addDay(end, -dayPerPage);
-            if (start.compareTo(model.getStartTime()) > 0) {
-                newmodel.setStartTime(start);
-            } else {
-                newmodel.setStartTime(model.getStartTime());
-            }
-        }
-        OnePage<Map<String, Object>> page = this.getData(sensor, points, newmodel);
-
-        // 从数据里每天抽取num条
-        List<Map<String, Object>> content = DataUtil.pickNumPerDay(page.getContent(), model.getNumPerDay());
-        page.setContent(content);
-
-        page.setPageNum(model.getPageNum());
-        page.setPageSize(model.getPageSize());
-        page.setTotal(daysBetweenDates * model.getPageSize());
-        return page;
-    }
-
     @Override
     public void clearAllBind() {
         String sql = "UPDATE n_sensor SET icd_id=null";
diff --git a/src/main/java/com/xydl/cac/service/impl/NSensorServiceImpl.java b/src/main/java/com/xydl/cac/service/impl/NSensorServiceImpl.java
index 816bc92..52add7c 100644
--- a/src/main/java/com/xydl/cac/service/impl/NSensorServiceImpl.java
+++ b/src/main/java/com/xydl/cac/service/impl/NSensorServiceImpl.java
@@ -182,17 +182,8 @@ public class NSensorServiceImpl implements NSensorService {
         SensorDetail<Map<String, Object>> result = new SensorDetail();
         result.setSensor(sensor);
 
-
-        if (model.getNumPerDay() != null && model.getPageSize() > model.getNumPerDay()) {
-            // 按每页几天取数据
-            int dayPerPage = model.getPageSize() / model.getNumPerDay();
-            OnePage<Map<String, Object>> page = dataService.getDataByDate(sensor, pointList, model, dayPerPage);
-            result.initFrom(page);
-        } else {
-            // 按全量取数据
-            OnePage<Map<String, Object>> page = dataService.getData(sensor, pointList, model);
-            result.initFrom(page);
-        }
+        OnePage<Map<String, Object>> page = dataService.getData(sensor, pointList, model);
+        result.initFrom(page);
 
         for (ModevTypePoint point : pointList) {
             List<Object> dataList = new ArrayList<>();