1、修改报表导出方法

lzbi-module/src/main/java/com/lzbi/bi/controller/DcBusiHisReportController.java

@@ -38,7 +38,6 @@ import java.util.stream.Collectors;
 public class DcBusiHisReportController extends BaseController {
     @Resource
     private LogTimesacleHistoryThreeService logTimesacleHistoryThreeService;
-
     /**
      * 分页列表查询
      *
@@ -161,7 +160,6 @@ public class DcBusiHisReportController extends BaseController {
             return AjaxResult.success(dataInfo);
         }
     }
-
     private String validatorator(LogTimeThreeQueryParamVo queryVo) {
         if (StringUtils.isNull(queryVo.getBeginTime())||StringUtils.isEmpty(queryVo.getBeginTime())) {
             return "查询失败，开始时间不能为空！";
@@ -174,7 +172,6 @@ public class DcBusiHisReportController extends BaseController {
         }
         return null;
     }
-
     ///按时间  设备+参数 形成数据--时间分组
     private List<Map<String, Object>> getMapList(List<LogTimescaleHistoryThreeVo> list, List<DcDymicReportHeaderVo> dcDymicReportHeaderVos) {
         Map<String, List<LogTimescaleHistoryThreeVo>> collect = list.stream().collect(Collectors.groupingBy(LogTimescaleHistoryThreeVo::getTimeStampString));
@@ -192,7 +189,6 @@ public class DcBusiHisReportController extends BaseController {
             return map;
         }).collect(Collectors.toList());
     }
-
     ///  设备+参数 形成数据--设备-参数分组
     private List<Map<String, Object>> getMapListDevice(List<LogTimescaleHistoryThreeVo> list,List<DcDymicReportHeaderVo> dcDymicReportHeaderVos) {
         Map<String, List<LogTimescaleHistoryThreeVo>> collect = list.stream().collect(Collectors.groupingBy(item->item.getDeviceUuid()+"_"+item.getParamCode()));
@@ -221,7 +217,6 @@ public class DcBusiHisReportController extends BaseController {
         List<Map<String, Object>> mapList=getExcellData(queryVo,2);
         toExcel(response,mapList);
     }
-
     @ApiOperation("生产设备参数统计明细表导出功能-时间横向")
     @PostMapping("/export2")
     public void export2(HttpServletResponse response,  LogTimeThreeQueryParamVo queryVo) throws IOException {
@@ -230,7 +225,6 @@ public class DcBusiHisReportController extends BaseController {
         toExcel(response,mapList);
 
     }
-
     //获取excel数据 1 excel设备参数为列模式 2 excel时间为列模式 3 浏览器设备参数为列模式
     //注意 excel有最大列数显示255 ，超出列数会报错
     private List<Map<String, Object>> getExcellData(LogTimeThreeQueryParamVo queryVo,int type){
@@ -249,31 +243,26 @@ public class DcBusiHisReportController extends BaseController {
         }
     }
 
-    private void toExcel(HttpServletResponse response, List<Map<String, Object>> mapList) {
-//        String fileName = "report" + DateUtil.now() + ".xls";
+    private void toExcel(HttpServletResponse response,List<Map<String, Object>> mapList) throws IOException {
+        String fileName ="report"+DateUtil.now() + ".xls";
         response.setContentType("application/vnd.openxmlformats-officedocument.spreadsheetml.sheet");
         response.setCharacterEncoding("utf-8");
         ExcelWriter writer = ExcelUtil.getWriter(true);
         writer.write(mapList, true);
         //test.xls是弹出下载对话框的文件名，不能为中文，中文请自行编码
         //response.setHeader("Content-Disposition", "attachment;filename="+fileName);
-        try (ServletOutputStream out = response.getOutputStream()) {
+        ServletOutputStream out = response.getOutputStream();
         writer.flush(out, true);
         // 关闭writer，释放内存
         writer.close();
         //此处记得关闭输出Servlet流
         IoUtil.close(out);
-        } catch (IOException e) {
-            e.printStackTrace();
-        }
     }
-
     @ApiOperation("获取生产IOT系统参数模版列表")
     @GetMapping("/getParamClass")
     public AjaxResult getParamClass(){
        return AjaxResult.success(logTimesacleHistoryThreeService.selectParamModels()) ;
     }
-
     @ApiOperation("获取生产IOT系统设备列表")
     @GetMapping("/getDevicie/{orgCode}")
     public AjaxResult selectDevices(@PathVariable Long orgCode)  {