导出功能

air/src/main/java/com/air/land/controller/LandListedController.java

@@ -29,6 +29,7 @@ import org.apache.poi.xssf.usermodel.XSSFWorkbook;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.beans.factory.annotation.Value;
 
+import org.springframework.core.io.ClassPathResource;
 import org.springframework.data.redis.connection.jedis.JedisUtils;
 import org.springframework.data.redis.core.RedisTemplate;
 import org.springframework.web.bind.annotation.*;
@@ -247,7 +248,7 @@ public class LandListedController {
      * @date 2021/5/25
      **/
     @ApiOperation(value = "导出全部已挂牌地块信息", notes = "导出全部已挂牌地块信息")
-    @GetMapping("/exportAllLandListExcel")
+    @GetMapping("/exportAllLandListExcels")
     public void exportAllLandListExcel(HttpServletResponse response) throws IOException {
 //        if(redisUtil.getCacheObject("/exportAllLandListExcel/wb") != null){
 ////            OutputStream outputStream = new ByteArrayOutputStream();
@@ -268,6 +269,9 @@ public class LandListedController {
 //        }
         List<List<String>> landList = landListedService.getLandList(null);
         InputStream resourceAsStream = LandListedController.class.getClassLoader().getResourceAsStream("templates/excel/exportLandList.xlsx");
+        //获取静态文件
+//        ClassPathResource classPathResource = new ClassPathResource("templates/excel/exportLandList.xlsx");
+//        InputStream inputStream = classPathResource.getInputStream();
 //        InputStream resourceAsStream = LandListedController.class.getClassLoader().getResourceAsStream("templates/excel/exportLandList.xlsx");
         // 读取excel模板
         XSSFWorkbook wb = null;
@@ -305,7 +309,7 @@ public class LandListedController {
      * @date 2021/5/25
      **/
     @ApiOperation(value = "导出全部已挂牌地块信息", notes = "导出全部已挂牌地块信息")
-    @GetMapping("/exportAllLandListExcels")
+    @GetMapping("/exportAllLandListExcel")
     public void exportAllLandListExcels(HttpServletResponse response)  {
 
         int NUM_PER_SHEET = 300000;
@@ -319,7 +323,15 @@ public class LandListedController {
         // 获取数据
         List<List<String>> date = landListedService.getLandList(null);
         log.info(date.size() + "==================================多少数量");
-        InputStream resourceAsStream = LandListedController.class.getClassLoader().getResourceAsStream("templates/excel/exportLandList.xlsx");
+ //       InputStream resourceAsStream = LandListedController.class.getClassLoader().getResourceAsStream("templates/excel/exportLandList.xlsx");
+        //获取静态文件
+        ClassPathResource classPathResource = new ClassPathResource("templates/excel/excelAllLand.xlsx");
+        InputStream inputStream = null;
+        try {
+            inputStream = classPathResource.getInputStream();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
         // 获取 sheet 的个数
         int sheetNum = date.size() % NUM_PER_SHEET == 0 ? date.size() / NUM_PER_SHEET : date.size() / NUM_PER_SHEET + 1;
         log.info("sheetNum===============================" + sheetNum);
@@ -327,7 +339,7 @@ public class LandListedController {
         // 指定写入的文件  //ExcelWriter该对象用于通过POI将值写入Excel
         ExcelWriter excelWriter = null;
         try {
-            excelWriter = EasyExcel.write(response.getOutputStream()).withTemplate(resourceAsStream)
+            excelWriter = EasyExcel.write(response.getOutputStream()).withTemplate(inputStream)
                     //设置默认样式及写入头信息开始的行数
                     //.useDefaultStyle(true).relativeHeadRowIndex(3)
                     .build();
@@ -353,8 +365,6 @@ public class LandListedController {
             log.info("导出excel结束,总数据量={}，耗时={}ms", date.size(), System.currentTimeMillis() - startTime);
         }
 
-
-
     }
 
 }