'导入模板'

src/main/java/com/taauav/admin/controller/TauvWaterTrendController.java

     public Response importExcel(@RequestParam("file") MultipartFile file) {
         return tauvWaterTrendService.importTrend(file);
     }
+
+    /**
+     * 下载导入模板
+     * @return
+     */
+    @GetMapping("/template")
+    public Response exportTemplate() {
+        return tauvWaterTrendService.getTemplate();
+    }
 }

src/main/java/com/taauav/admin/service/ITauvWaterTrendService.java

      * @return
      */
     Response getTrendList(Integer id);
+
+    /**
+     * 获取导入数据模板
+     * @return
+     */
+    Response getTemplate();
 }

src/main/java/com/taauav/admin/service/impl/TauvWaterTrendServiceImpl.java

 import com.taauav.common.service.impl.BaseServiceImpl;
 import com.taauav.common.util.*;
 import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.beans.factory.annotation.Value;
 import org.springframework.stereotype.Service;
 import com.taauav.admin.mapper.TauvWaterTrendMapper;
 import com.taauav.admin.entity.TauvWaterTrend;
 import org.springframework.transaction.annotation.Transactional;
 import org.springframework.web.multipart.MultipartFile;
 
+import java.io.File;
 import java.math.BigDecimal;
 import java.util.Calendar;
 import java.util.List;
     private SysCityMapper cityMapper;
     @Autowired
     private TauvDriverMapper driverMapper;
+    @Value("${file.uploadFolder}")
+    private String uploadFolder;
+    @Value("${server.UPLOAD_URL}")
+    private String uploadUrl;
 
     /**
      * 导入Excel数据
         List<TauvWaterTrend> list = baseMapper.selectList(wrapper);
         return response.success(list);
     }
+
+    @Override
+    public Response getTemplate() {
+        String filename = "导入水环境趋势模拟数据模板.xlsx";
+        File filedir = new File(uploadFolder);
+        if (!filedir.isDirectory()) {
+            filedir.mkdirs();
+        }
+        String path = uploadFolder + "/" + filename;
+        return response.success(path.replace(uploadFolder, uploadUrl + "/upload/"));
+    }
 }