----增加扫描结果导出到excel表格中

pom.xml

@@ -49,6 +49,17 @@
                 </exclusion>
             </exclusions>
         </dependency>
+        <dependency>
+            <groupId>org.apache.poi</groupId>
+            <artifactId>poi</artifactId>
+            <version>4.1.2</version>
+        </dependency>
+        <dependency>
+            <groupId>org.apache.poi</groupId>
+            <artifactId>poi-ooxml</artifactId>
+            <version>4.1.2</version>
+        </dependency>
+
     </dependencies>
 
     <build>

src/main/java/com/example/device/controller/DeviceStatus.java

@@ -2,6 +2,7 @@ package com.example.device.controller;
 import com.example.device.entity.Device;
 import com.example.device.entity.Status;
 import com.example.device.service.DeviceService;
+import com.example.device.service.ExcelExportService;
 import com.example.device.service.StatusService;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.scheduling.annotation.EnableScheduling;
@@ -10,11 +11,15 @@ import org.springframework.stereotype.Component;
 import java.io.IOException;
 import java.net.InetAddress;
 import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
 import java.time.temporal.ChronoUnit;
 import java.util.HashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.stream.Collectors;
+import org.apache.poi.ss.usermodel.Workbook;
+import org.apache.poi.xssf.usermodel.XSSFWorkbook;
+import java.io.FileOutputStream;
 
 @Component
 @EnableScheduling
@@ -25,9 +30,11 @@ public class DeviceStatus {
     @Autowired
     private StatusService statusService;
 
+    @Autowired
+    private ExcelExportService excelExportService;
+
 
-    //每天凌晨开始执行，每4小时执行一次
+    @Scheduled(cron = "0 51 8 * * ?")
-    @Scheduled(cron = "0 33 * * * ?")
     // @Scheduled(cron = "0 0 1,5,7,8,11,14,17,19,21,23")
     public void generateDeviceStatus() {
         deviceStatus();
@@ -55,12 +62,13 @@ public class DeviceStatus {
                 System.out.println("Error pinging " + device.getDeviceIp() + ": " + e.getMessage());
             }
         }
+        calculateSuccessRate();
     }
 
     /**
      * 计算成功率
      */
-    public Map<String, String> calculateSuccessRate() {
+    public void calculateSuccessRate() {
 
         LocalDateTime todayStart = LocalDateTime.now().truncatedTo(ChronoUnit.DAYS);
         LocalDateTime currentTime = LocalDateTime.now();
@@ -71,17 +79,32 @@ public class DeviceStatus {
         status.setStartTime(todayStart);
         status.setTime(currentTime);
         List<Status> listStatus = statusService.list(status);
-        Map<String, List<Status>> map = listStatus.stream().collect(Collectors.groupingBy(Status::getDeviceIp));
+        Map<String, List<Status>> map = listStatus.stream().collect(Collectors.groupingBy(Status::getDeviceName));
-
+        for (String name : map.keySet()) {
-        for (String ip : map.keySet()) {
             // 成功的次数
-            long successNumber = map.get(ip).stream().filter(item -> item.getDeviceStatus() == 1).count();
+            long successNumber = map.get(name).stream().filter(item -> item.getDeviceStatus() == 1).count();
             // 此ip对应的成功率
-            String successRate = String.format("%.2f%%", (double) successNumber / map.get(ip).size() * 100);
+            String successRate = String.format("%.2f%%", (double) successNumber / map.get(name).size() * 100);
-            ipMap.put(ip, successRate);
+            ipMap.put(name, successRate);
+        }
+        String  filePath=CreateNamedExcel();
+        excelExportService.exportDataToExcel(ipMap,filePath);
     }
 
-        return ipMap;
+
+    public String CreateNamedExcel() {
+            LocalDateTime dateTime = LocalDateTime.now();
+            DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
+            String formattedDateTime = dateTime.format(formatter);
+            String filePath = "/Users/mengfanfeng/Downloads/excel/"+formattedDateTime+"--deviceStatus.xlsx";
+            try (Workbook workbook = new XSSFWorkbook()) {
+                FileOutputStream fileOut = new FileOutputStream(filePath);
+                workbook.write(fileOut);
+                System.out.println("Empty named Excel created successfully.");
+            } catch (IOException e) {
+                e.printStackTrace();
+            }
+            return filePath;
         }
 
 }

src/main/java/com/example/device/service/ExcelExportService.java

@@ -0,0 +1,43 @@
+package com.example.device.service;
+import org.apache.poi.ss.usermodel.*;
+import org.apache.poi.xssf.usermodel.XSSFWorkbook;
+import org.springframework.stereotype.Service;
+
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.time.LocalDateTime;
+import java.time.format.DateTimeFormatter;
+import java.time.temporal.ChronoUnit;
+import java.util.Map;
+
+@Service
+public class ExcelExportService {
+
+    public void exportDataToExcel(Map<String, String> ipMap, String filePath) {
+        Workbook workbook = new XSSFWorkbook();
+        Sheet sheet = workbook.createSheet("设备故障率");
+        LocalDateTime dateTime = LocalDateTime.now();
+        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
+        String formattedDateTime = dateTime.format(formatter);
+        int rowNum = 0;
+        for (String name : ipMap.keySet()) {
+            Row row = sheet.createRow(rowNum++);
+            row.createCell(0).setCellValue(name);
+            row.createCell(1).setCellValue(ipMap.get(name));
+            row.createCell(2).setCellValue(formattedDateTime);
+            CellStyle style = workbook.createCellStyle();
+            // 应用样式到单元格
+            row.getCell(0).setCellStyle(style);
+            row.getCell(1).setCellStyle(style);
+            row.getCell(2).setCellStyle(style);
+
+        }
+
+        try (FileOutputStream outputStream = new FileOutputStream(filePath)) {
+            workbook.write(outputStream);
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+}
+