feat:新增导出主设备的最新数据

src/main/java/com/xydl/cac/controller/NSensorController.java

@@ -183,4 +183,24 @@ public class NSensorController extends BasicController {
         return Response.success(str);
     }
 
+
+    @GetMapping("exportLatest")
+    @ApiOperation("导出")
+    public void exportLatest(@ApiParam("主设备id") @RequestParam(value = "zsbid", required = false) Integer zsbid, HttpServletResponse response) throws Exception {
+        response.setContentType("application/vnd.ms-excel");
+        response.setCharacterEncoding("utf-8");
+        List<NSensor> result = service.listAll(zsbid);
+
+        String excelName = "";
+        if (null != result && result.size() > 0) {
+            NSensor nSensor = result.get(0);
+            excelName = nSensor.getZsbName() + "的最新数据";
+        }
+        response.setHeader("Content-Disposition", "attachment; filename="
+                + URLEncoder.encode(excelName + ".xlsx", "UTF-8"));
+
+        reportService.exportLatest(result, response.getOutputStream());
+
+    }
+
 }

src/main/java/com/xydl/cac/service/ReportService.java

@@ -1,5 +1,6 @@
 package com.xydl.cac.service;
 
+import com.xydl.cac.entity.NSensor;
 import com.xydl.cac.model.SensorDetail;
 
 import java.io.InputStream;
@@ -14,4 +15,6 @@ public interface ReportService {
     void exportSensorList(List<SensorDetail<Map<String, Object>>> detailList, OutputStream output) throws Exception;
 
     void importCac(InputStream input) throws Exception;
+
+    void exportLatest(List<NSensor> result, OutputStream output) throws Exception;
 }

src/main/java/com/xydl/cac/service/impl/ReportServiceImpl.java

@@ -5,6 +5,7 @@ import com.alibaba.excel.ExcelWriter;
 import com.alibaba.excel.write.metadata.WriteSheet;
 import com.alibaba.excel.write.style.column.LongestMatchColumnWidthStyleStrategy;
 import com.xydl.cac.entity.ModevTypePoint;
+import com.xydl.cac.entity.NSensor;
 import com.xydl.cac.excel.CacExcelListener;
 import com.xydl.cac.excel.CacLine;
 import com.xydl.cac.model.SensorDetail;
@@ -21,6 +22,7 @@ import javax.annotation.Resource;
 import java.io.InputStream;
 import java.io.OutputStream;
 import java.util.ArrayList;
+import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 
@@ -104,4 +106,68 @@ public class ReportServiceImpl implements ReportService {
                 .sheet(0)
                 .doRead();
     }
+
+    @Override
+    public void exportLatest(List<NSensor> result, OutputStream output) throws Exception {
+
+        // 导出Excel
+        ExcelWriter excelWriter = EasyExcel.write(output).inMemory(true)
+                .registerWriteHandler(new LongestMatchColumnWidthStyleStrategy()).build();
+
+        Map<Integer, List<NSensor>> map = new HashMap<>();
+        for (NSensor nSensor : result) {
+            if (map.containsKey(nSensor.getTypeId())) {
+                map.get(nSensor.getTypeId()).add(nSensor);
+            } else {
+                List<NSensor> list = new ArrayList<>();
+                list.add(nSensor);
+                map.put(nSensor.getTypeId(), list);
+            }
+        }
+
+        int i = 0;
+        for (Integer key : map.keySet()) {
+            List<NSensor> nSensors = map.get(key);
+
+            // 表头
+            List<List<String>> heads = new ArrayList<>();
+            List<String> head = new ArrayList<>();
+            head.add("主设备名称");
+            heads.add(head);
+            head = new ArrayList<>();
+            head.add("时间");
+            heads.add(head);
+            for (ModevTypePoint point : nSensors.get(0).getTypePoints()) {
+                head = new ArrayList<>();
+                head.add(point.getFieldDesc() + "(" + point.getUnit() + ")");
+                heads.add(head);
+            }
+
+            // 内容
+            List<List<String>> list = new ArrayList<>();
+            for (NSensor nSensor : nSensors) {
+                List<String> line = new ArrayList<>();
+                line.add(nSensor.getZsbName());
+                HashMap<String, String> lastData = nSensor.getLastData();
+                if (null != lastData) {
+                    String acquisitionTime = nSensor.getLastData().get("acquisitionTime");
+                    line.add(acquisitionTime);
+                    for (ModevTypePoint typePoint : nSensor.getTypePoints()) {
+                        line.add(lastData.get(typePoint.getField()));
+                    }
+                }
+                list.add(line);
+            }
+
+            WriteSheet writeSheet = EasyExcel.writerSheet(i, key + "")
+                    .head(heads)
+                    .build();
+
+            excelWriter.write(list, writeSheet);
+            i++;
+        }
+
+        excelWriter.finish();
+    }
+
 }