feat(download):增加虎标档案模板的下载，并在Docker镜像中加入下载支持。

controller/meter04kv.go

@@ -0,0 +1,53 @@
+package controller
+
+import (
+	"electricity_bill_calc/response"
+	"electricity_bill_calc/security"
+	"electricity_bill_calc/service"
+	"fmt"
+	"net/http"
+
+	"github.com/gin-gonic/gin"
+)
+
+type _Meter04kVController struct {
+	Router *gin.Engine
+}
+
+var Meter04kVController *_Meter04kVController
+
+func InitializeMeter04kVController(router *gin.Engine) {
+	Meter04kVController = &_Meter04kVController{
+		Router: router,
+	}
+
+	Meter04kVController.Router.GET("/park/:pid/meter/template", security.EnterpriseAuthorize, download04kvMeterArchiveTemplate)
+}
+
+func download04kvMeterArchiveTemplate(c *gin.Context) {
+	result := response.NewResult(c)
+	requestParkId := c.Param("pid")
+	userSession, err := _retreiveSession(c)
+	if err != nil {
+		result.Unauthorized(err.Error())
+		return
+	}
+	sure, err := service.ParkService.EnsurePark(userSession.Uid, requestParkId)
+	if err != nil {
+		result.Error(http.StatusInternalServerError, err.Error())
+		return
+	}
+	if !sure {
+		result.Unauthorized("不能访问不属于自己的园区。")
+		return
+	}
+	parkDetail, err := service.ParkService.FetchParkDetail(requestParkId)
+	if err != nil {
+		result.NotFound("未找到指定的园区信息。")
+		return
+	}
+	c.Status(http.StatusOK)
+	c.Header("Content-Type", "application/octet-stream")
+	c.Header("Content-Transfer-Encoding", "binary")
+	c.FileAttachment("./assets/meter_04kv_template.xlsx", fmt.Sprintf("%s-户表档案.xlsx", parkDetail.Name))
+}