1.需求
甲方的需求是以这种格式导出一个开工通知单
前端页面是这个样子：
前端勾选一部分部室，后端根据勾选的这些部室名称进行查询，将查询到的部室主任名字填充到表格对应的位置中，另外将前端传过来的信息都填充到表格的指定位置。
先展示一下最后导出的结果：
2.解决方法思路
1.前端以form-data表单形式传过来数据，后端使用gin框架的PostForm方法接收参数，并将参数填充到指定位置
2.前端传过来一些部室，后端对这些部室进行判断，通过部室名去查找部室主任，并将部室主任填充到对应的位置
3.导出excel所使用的库excelize：
go get github.com/xuri/excelize/v23.源码及结果展示
1.项目结构
2.在网页端下载excel文件（源码）
package file
import (
"fmt"
"github.com/gin-gonic/gin"
)
func ExcelDown(ctx *gin.Context, filepath string, filename string) {
ctx.Writer.Header().Add("Content-Disposition", fmt.Sprintf("attachment; filename=%s", filename))
ctx.Writer.Header().Add("Content-Type", "application/msexcel")
ctx.File(filepath)
}
3.导出excel文件
1.如何配置swagger还有导出excel的步骤和逻辑都有写的很清楚，具体看代码注释
package controller
import (
"fmt"
"ginEssential/common"
"ginEssential/file"
"ginEssential/model"
"ginEssential/response"
"github.com/gin-gonic/gin"
"github.com/xuri/excelize/v2"
"strings"
"time"
)
//导出开工通知单excel
// @Summary 导出开工通知单excel
// @Description 输入信息进行导出
// @Tags 开工通知管理
// @Accept multipart/form-data
// @Produce application/msexcel
// @Param informNumber formData string true "通知单编号"
// @Param projectName formData string true "项目名称"
// @Param designPhase formData string true "设计阶段"
// @Param projectNumber formData string true "工程编码"
// @Param startTime formData string true "开始时间"
// @Param completionTime formData string true "完成时间"
// @Param designBasis formData string true "设计依据"
// @Param departments formData string true "专业部室"
// @Param remark formData string true "备注"
// @Param technology formData string true "技保部"
// @Router /informs/excel [post]
func InformExcel(ctx *gin.Context) {
DB := common.GetDB()
//创建一个新的工作簿
f := excelize.NewFile()
//声明工作表的名称
sheetName := "开工通知单"
f.SetSheetName("Sheet1", sheetName)
//往表里面添加数据
//获取当前时间，填在表头
now := time.Now()
currentDate := time.Date(now.Year(), now.Month(), now.Day(), 0, 0, 0, 0, now.Location())
nowDate := currentDate.Format("2006-1-2")
//获取通知单编号
informNumber := ctx.PostForm("informNumber")
//获取项目名称
projectName := ctx.PostForm("projectName")
//获取设计阶段
designPhase := ctx.PostForm("designPhase")
//获取工程编码
projectNumber := ctx.PostForm("projectNumber")
//获取开始时间
startTime := ctx.PostForm("startTime")
//获取完成时间
completionTime := ctx.PostForm("completionTime")
//获取设计依据
designBasis := ctx.PostForm("designBasis")
//获取前端传来了哪些专业部室
departments := ctx.PostForm("departments")
fmt.Println(departments)
//判断里面有哪些部室
var department model.Department
//判断里面有没有规划室
if strings.Contains(departments, "规划室") {
//根据规划室查询室主任
if err := DB.Where("department_name = ?", "规划室").First(&department).Error; err != nil {
response.Fail(ctx, "部门不存在！", nil)
return
}
}
planDirector := department.DepartmentDirector
var department1 model.Department
if strings.Contains(departments, "电气室") {
if err := DB.Where("department_name = ?", "电气室").First(&department1).Error; err != nil {
response.Fail(ctx, "部门不存在！", nil)
return
}
}
electricalDirector := department1.DepartmentDirector
var department2 model.Department
if strings.Contains(departments, "输电室") {
if err := DB.Where("department_name = ?", "输电室").First(&department2).Error; err != nil {
response.Fail(ctx, "部门不存在！", nil)
return
}
}
transmissionDirector := department2.DepartmentDirector
var department3 model.Department
if strings.Contains(departments, "土建室") {
if err := DB.Where("department_name = ?", "土建室").First(&department3).Error; err != nil {
response.Fail(ctx, "部门不存在！", nil)
return
}
}
constructDirector := department3.DepartmentDirector
var department4 model.Department
if strings.Contains(departments, "配电室") {
if err := DB.Where("department_name = ?", "配电室").First(&department4).Error; err != nil {
response.Fail(ctx, "部门不存在！", nil)
return
}
}
distributeDirector := department4.DepartmentDirector
var department5 model.Department
if strings.Contains(departments, "技经室") {
if err := DB.Where("department_name = ?", "技经室").First(&department5).Error; err != nil {
response.Fail(ctx, "部门不存在！", nil)
return
}
}
technologyDirector := department5.DepartmentDirector
var department6 model.Department
if strings.Contains(departments, "评审室") {
if err := DB.Where("department_name = ?", "评审室").First(&department6).Error; err != nil {
response.Fail(ctx, "部门不存在！", nil)
return
}
}
evaluateDirector := department6.DepartmentDirector
//获取备注
remark := ctx.PostForm("remark")
//获取技保部
technology := ctx.PostForm("technology")
data := [][]interface{}{
{"工程项目开工通知单"},
{"时间:", nowDate, nil, nil, nil, "编号:", informNumber, nil, nil},
{"工程名称", projectName, nil, nil},
{"设计阶段", designPhase, nil, nil, nil, "工程编码", projectNumber, nil},
{"工程计划", "开始时间", startTime, nil, nil, "完成时间", completionTime, nil},
{"设计依据", designBasis, nil},
{nil, "规划室", nil, nil, nil, "室主任", planDirector, nil},
{nil, "电气室", nil, nil, nil, "室主任", electricalDirector, nil},
{nil, "输电室", nil, nil, nil, "室主任", transmissionDirector, nil},
{"专业部室", "土建室", nil, nil, nil, "室主任", constructDirector, nil},
{nil, "配电室", nil, nil, nil, "室主任", distributeDirector, nil},
{nil, "技经室", nil, nil, nil, "室主任", technologyDirector, nil},
{nil, "评审室", nil, nil, nil, "室主任", evaluateDirector, nil},
{"备注", remark, nil},
{"技保部", technology, nil},
}
//遍历这个二维数组
for i, row := range data {
//按列赋值时，需要指定起始存储坐标
startCell, err := excelize.JoinCellName("A", i+1)
if err != nil {
fmt.Println(err)
return
}
if err := f.SetSheetRow(sheetName, startCell, &row); err != nil {
fmt.Println(err)
return
}
}
//合并单元格
mergeCellRanges := [][]string{
{"A1", "I1"},
{"B2", "E2"},
{"G2", "I2"},
{"B3", "I3"},
{"B4", "E4"},
{"G4", "I4"},
{"C5", "E5"},
{"G5", "I5"},
{"B6", "I6"},
{"C7", "E7"},
{"G7", "I7"},
{"C8", "E8"},
{"G8", "I8"},
{"C9", "E9"},
{"G9", "I9"},
{"C10", "E10"},
{"G10", "I10"},
{"C11", "E11"},
{"G11", "I11"},
{"C12", "E12"},
{"G12", "I12"},
{"C13", "E13"},
{"G13", "I13"},
{"B14", "I14"},
{"B15", "I15"},
{"A7", "A9"},
{"A11", "A13"},
}
for _, ranges := range mergeCellRanges {
if err := f.MergeCell(sheetName, ranges[0], ranges[1]); err != nil {
fmt.Println(err)
return
}
}
//创建格式,居中对齐
style1, err := f.NewStyle(&excelize.Style{
Alignment: &excelize.Alignment{Horizontal: "center"},
})
if err != nil {
fmt.Println(err)
return
}
//将样式应用到具体的单元格中
if f.SetCellStyle(sheetName, "A1", "I15", style1); err != nil {
fmt.Println(err)
return
}
//保存生成的excel
//用当前时间来给文件命名
currentTime1 := time.Now().Format("20060102-150405")
kai := "start"
filename := kai + currentTime1 + ".xlsx"
filepath := "Book1.xlsx"
err5 := f.SaveAs(filepath)
// 按照给定路径保存excel
if err5 != nil {
response.Fail(ctx, "导出失败", nil)
} else {
//下载
file.ExcelDown(ctx, filepath, filename)
}
}
2.参数传递以及结果展示：
