Merge branch 'xjjdev' into dev
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commit
d8d16033f7
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// Package excel -----------------------------
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// @file : templateInter_test.go
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// @author : JJXu
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// @contact : wavingbear@163.com
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// @time : 2022/7/23 15:59
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// -------------------------------------------
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package example
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import (
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"fmt"
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"gingogo2/utils/excel"
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"path/filepath"
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"strings"
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"testing"
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"time"
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)
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//定义sheet表结构
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type sheet1Define struct {
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Xid int `json:"xid" form:"xid" db:"column:xid;comment: "`
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Name string `json:"name" form:"name" db:"column:name;comment: "`
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Age int `json:"age" form:"age" db:"column:age;comment: "`
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}
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func TestExcelTpl_WriteToExcel(t *testing.T) {
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var sheet1Data = []sheet1Define{
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{1, "张三", 16},
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{2, "黑猫警长", 18},
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}
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var sheet1 = excel.NewSheet("Sheet1", sheet1Data)
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//var suffixFunc = func() string { return fmt.Sprintf("%v", time.Now().Unix()) }
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exCreator, err := excel.NewExcelTemplate("demo.xlsx", "./", "./demo.xlsx", sheet1)
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if err != nil {
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t.Log(err)
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}
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exCreator.UseOption(func(excel *excel.Excel) {
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ext := filepath.Ext(excel.SaveName)
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name := strings.Split(excel.SaveName, ext)[0]
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excel.SaveName = fmt.Sprintf("%s_%v%s", name, time.Now().Unix(), ext)
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})
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path, name, err := exCreator.WriteToFile()
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if err != nil {
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t.Log(err)
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} else {
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t.Log(path, name)
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}
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}
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func TestReadExcel(t *testing.T) {
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var file = "demo_1671435052.xlsx"
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ex := excel.Excel{OriginFilePath: file}
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var datas []sheet1Define
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err := ex.ReadSheetData("Sheet1", func(rowIndex int, rows []string) {
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if rowIndex == 0 {
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//跳过首行
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return
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}
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datas = append(datas, sheet1Define{
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Xid: excel.Int[int](rows[0]),
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Name: rows[1],
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Age: excel.Int[int](rows[2]),
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})
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})
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if err != nil {
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t.Error(err.Error())
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}
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fmt.Println(datas)
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}
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@ -1,253 +0,0 @@
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// Package excel -----------------------------
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// @file : templateInter.go
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// @author : JJXu
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// @contact : wavingbear@163.com
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// @time : 2022/7/23 15:34
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// -------------------------------------------
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package excel
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import (
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"errors"
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"fmt"
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"github.com/xuri/excelize/v2"
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"io"
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"log"
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"path/filepath"
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"reflect"
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"sync"
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)
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var (
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ErrSheetNotExist = errors.New("sheet does not exist")
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ErrSheetDataFrormat = errors.New("sheet data format must be slice or struct")
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//ErrSheetNameNotInTemplate = errors.New("sheet name not in emailTemplate")
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)
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//======================================================================================================================
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// Sheet define
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// 抽象工作簿
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type Sheet interface {
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GetData() any
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SheetName() string
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}
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// 实例化工作簿
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func NewSheet(sheetName string, datas any) Sheet {
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return &newSheetDefine{
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Datas: datas,
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Name: sheetName,
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}
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}
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// 定义一个能够通用的工作簿结构，此结构必须遵循Sheet接口规范
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type newSheetDefine struct {
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Datas any
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Name string
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}
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func (s *newSheetDefine) GetData() any {
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return s.Datas
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}
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func (s *newSheetDefine) SheetName() string {
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return s.Name
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}
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//======================================================================================================================
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// Sheet define
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// WriteToExcel 通过模板文件写入数据并另存为
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// param fileName : 文件名
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// param filesSuffix : 文件后缀名生成函数
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// param fileRoot : 导出目录
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// param templatePath : 模板文件路径
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// param sheets : Sheet类型的数据，类型为[]Sheet
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// return path : 文件路径
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// return exfileName : 导出后的文件名
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// return err
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func WriteToExcel(fileName string, fileRoot string, templatePath string, sheets ...Sheet) (path string, exFileName string, err error) {
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var exc *Excel
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exc, err = NewExcelTemplate(fileName, fileRoot, templatePath, sheets...)
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if err != nil {
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return
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}
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return exc.WriteToFile()
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}
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// ReadDataFromExcel 从excel文件读取数据
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func ReadDataFromExcel(filepath string, sheetName string, handler func(rowIndex int, rows []string)) error {
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ex := Excel{OriginFilePath: filepath}
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return ex.ReadSheetData(sheetName, handler)
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}
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// ReadDataFromBytes 从io口读取数据，用户http上传的附件
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func ReadDataFromBytes(file io.Reader, sheetName string, handler func(rowIndex int, rows []string)) error {
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exce, err := excelize.OpenReader(file)
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if err != nil {
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return err
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}
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var ex = Excel{ex: exce}
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return ex.ReadSheetData(sheetName, handler)
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}
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// 新建工作表实例
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func NewExcelTemplate(fileName string, fileRoot string, templatePath string, sheets ...Sheet) (exc *Excel, err error) {
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exc = &Excel{
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SaveRoot: fileRoot,
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SaveName: fileName,
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OriginFilePath: templatePath,
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rwLock: sync.RWMutex{},
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}
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if sheets != nil {
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err = exc.AddSheets(sheets...)
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if err != nil {
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return
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}
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}
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return exc, nil
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}
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type Excel struct {
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ex *excelize.File
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SaveRoot string
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SaveName string
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OriginFilePath string
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Sheets map[string]Sheet
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rwLock sync.RWMutex
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Opts []Option
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}
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// UseOption 使用可选项
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func (s *Excel) UseOption(opts ...Option) {
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if opts != nil {
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s.Opts = append(s.Opts, opts...)
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}
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}
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// 添加工作簿
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// 注意如果添加相同的工作簿，之前的会被覆盖
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func (s *Excel) AddSheets(sheets ...Sheet) (err error) {
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if s.Sheets == nil {
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s.Sheets = make(map[string]Sheet, 0)
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}
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for _, sheet := range sheets {
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var sheetName = sheet.SheetName()
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s.Sheets[sheetName] = sheet
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}
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return
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}
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// 删除工作簿
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func (s *Excel) DeleteSheets(sheetName string) error {
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if s.Sheets == nil {
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return nil
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} else if s.Sheets[sheetName] != nil {
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delete(s.Sheets, sheetName)
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} else {
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return ErrSheetNotExist
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}
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return nil
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}
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// 读取工作簿
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func (s *Excel) ReadSheetData(sheetName string, handler func(rowIndex int, rows []string)) (err error) {
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if s.ex == nil {
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s.ex, err = excelize.OpenFile(s.OriginFilePath)
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if err != nil {
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return
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}
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}
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datas, err := s.ex.GetRows(sheetName)
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for i, rows := range datas {
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handler(i, rows)
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}
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return nil
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}
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// 写入到文件
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func (s *Excel) WriteToFile() (path string, fileName string, err error) {
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if s.ex == nil {
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s.ex, err = excelize.OpenFile(s.OriginFilePath)
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if err != nil {
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return
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}
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}
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if s.Opts != nil {
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for _, opt := range s.Opts {
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opt(s)
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}
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}
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//插入数据
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var cellNameList []string
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for sheetName, st := range s.Sheets {
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var firstRow = s.getFirstEmptyRowIndex(s.ex, sheetName)
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var SheetData = reflect.ValueOf(st.GetData())
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var SheetType = reflect.TypeOf(st.GetData())
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switch SheetData.Kind() {
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case reflect.Slice:
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cellNameList = s.getJsonFieldList(SheetType)
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var rowLen = SheetData.Len()
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for i := 0; i < rowLen; i++ {
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var dataMap = s.dataToMap(SheetData.Index(i), SheetType)
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for column, v := range cellNameList {
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var axis = GetCellIndex(i+firstRow+1, column+1)
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err = s.ex.SetCellValue(sheetName, axis, dataMap[v])
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if err != nil {
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fmt.Println(err.Error())
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}
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}
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}
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case reflect.Struct:
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cellNameList = s.getJsonFieldList(SheetType)
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var dataMap = s.dataToMap(SheetData, SheetType)
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for column, v := range cellNameList {
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var axis = GetCellIndex(firstRow+1, column+1)
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err = s.ex.SetCellValue(sheetName, axis, dataMap[v])
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if err != nil {
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fmt.Println(err.Error())
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}
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}
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default:
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return "", "", ErrSheetDataFrormat
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}
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}
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//保存
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path = filepath.ToSlash(filepath.Join(s.SaveRoot, s.SaveName))
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s.rwLock.Lock()
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if err = s.ex.SaveAs(path); err != nil {
|
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log.Println(fmt.Sprintf("save file error :%v", err))
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s.rwLock.Unlock()
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return
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}
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s.rwLock.Unlock()
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return
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}
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// getJsonFieldList 获取json字段列表
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func (s *Excel) getJsonFieldList(sheetType reflect.Type) (tagList []string) {
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t := sheetType.Elem()
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for i := 0; i < t.NumField(); i++ {
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tagList = append(tagList, t.Field(i).Tag.Get("json"))
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}
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return
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}
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// dataToMap 数据转字典
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func (s *Excel) dataToMap(sheet reflect.Value, sheetType reflect.Type) (dataMap map[string]any) {
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dataMap = make(map[string]any)
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t := sheetType.Elem()
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for i := 0; i < t.NumField(); i++ {
|
||||
dataMap[t.Field(i).Tag.Get("json")] = sheet.Field(i).Interface()
|
||||
}
|
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return dataMap
|
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}
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|
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// getFirstEmptyRowIndex 获取首个空行的索引位置
|
||||
func (s *Excel) getFirstEmptyRowIndex(ex *excelize.File, sheetName string) (index int) {
|
||||
rows, err := ex.GetRows(sheetName)
|
||||
if err != nil {
|
||||
return 1
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}
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return len(rows)
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}
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@ -1,38 +0,0 @@
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// Package excel -----------------------------
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// @file : excel_test.go
|
||||
// @author : JJXu
|
||||
// @contact : wavingBear@163.com
|
||||
// @time : 2022/12/19 16:52:11
|
||||
// -------------------------------------------
|
||||
package excel
|
||||
|
||||
import (
|
||||
"reflect"
|
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"testing"
|
||||
)
|
||||
|
||||
//定义sheet表结构
|
||||
type sheet1Define struct {
|
||||
Xid int `json:"xid" form:"xid" db:"column:xid;comment: "`
|
||||
Name string `json:"name" form:"name" db:"column:name;comment: "`
|
||||
Age int `json:"age" form:"age" db:"column:age;comment: "`
|
||||
}
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||||
func TestSlice(t *testing.T) {
|
||||
var sheet1Datas = []sheet1Define{
|
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{1, "张三", 16},
|
||||
{2, "黑猫警长", 18},
|
||||
}
|
||||
|
||||
var sheet1 = NewSheet("Sheet1", &sheet1Datas)
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||||
d := sheet1.GetData()
|
||||
v := reflect.ValueOf(d)
|
||||
switch v.Kind() {
|
||||
case reflect.Slice:
|
||||
t.Log(v.Index(0))
|
||||
case reflect.Struct:
|
||||
t.Log(v)
|
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default:
|
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t.Log("错误格式")
|
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}
|
||||
}
|
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@ -1,27 +0,0 @@
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// Package excel -----------------------------
|
||||
// @file : options.go
|
||||
// @author : JJXu
|
||||
// @contact : wavingBear@163.com
|
||||
// @time : 2022/12/19 12:41:40
|
||||
// -------------------------------------------
|
||||
package excel
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"path/filepath"
|
||||
"strings"
|
||||
"time"
|
||||
)
|
||||
|
||||
type Option func(excel *Excel)
|
||||
|
||||
//func AddSaveFileSuffixWithUnixTime(excel *Excel) {
|
||||
// excel.SaveName
|
||||
// fmt.Sprintf("%v", time.Now().Unix())
|
||||
//}
|
||||
// 时间戳作为文件后缀
|
||||
func OptionFileNameSuffixWithUnixTime(excel *Excel) {
|
||||
ext := filepath.Ext(excel.SaveName)
|
||||
name := strings.Split(excel.SaveName, ext)[0]
|
||||
excel.SaveName = fmt.Sprintf("%s_%v%s", name, time.Now().Unix(), ext)
|
||||
}
|
||||
@ -1,161 +0,0 @@
|
||||
# excel文件生成器
|
||||
## excel文件生成器简介
|
||||
此模块提供了通过`.xlsx`格式的excel模板文件，创建文件并自动添加数据的方法。
|
||||
此模块通过设计模式，在"github.com/xuri/excelize/v2"的基础上封装了`ExcelCreator`这一泛型的方法。适用于快速开发报表导出功能。
|
||||
|
||||
### 基本使用示例
|
||||
```go
|
||||
package main
|
||||
import (
|
||||
"fmt"
|
||||
"github.com/flipped-aurora/gin-vue-admin/server/utils/excel"
|
||||
"github.com/flipped-aurora/gin-vue-admin/server/utils/simpletime"
|
||||
"sync"
|
||||
"time"
|
||||
)
|
||||
|
||||
//读写锁
|
||||
var exportEpidemicPreventStaticStaticLock sync.RWMutex
|
||||
|
||||
//定义sheet1数据结构
|
||||
type EpidemicPreventStaticReport struct {
|
||||
Xid int `json:"xid" form:"xid" db:"column:xid;comment:序号"`
|
||||
Time string `json:"time" form:"time" db:"column:time;comment:日期"`
|
||||
Name string `json:"name" form:"name" db:"column:name;comment:项目名称"`
|
||||
Code string `json:"code" form:"code" db:"column:code;comment:监督备案号"`
|
||||
Street string `json:"street" form:"street" db:"column:street;comment:街道"`
|
||||
State string `json:"state" form:"state" db:"column:state;comment:状态：未完成、已完成"`
|
||||
}
|
||||
|
||||
//导出数据
|
||||
func (m EpidemicPreventStaticReport) WriteToExcel(datas []EpidemicPreventStaticReport) (path string, filename string, err error) {
|
||||
defer exportEpidemicPreventStaticStaticLock.Unlock()
|
||||
//实例化sheet1,载入数据
|
||||
st1 := excel.NewSheet("Sheet1", datas)
|
||||
var suffixName = func() string {
|
||||
return fmt.Sprintf("%v", simpletime.TimeToString(time.Now(), simpletime.TimeFormat.NoSpacer_YMDhms))
|
||||
}
|
||||
//实例化excelCreator
|
||||
exc, err := excel.NewExcelCreator("防疫日报日完成项目数统计.xlsx", &suffixName, "uploads/template2/file", "uploads/template2/防疫日报日完成项目数统计.xlsx", st1)
|
||||
if err != nil {
|
||||
fmt.Println(err.error())
|
||||
}
|
||||
exportEpidemicPreventStaticStaticLock.Lock()
|
||||
// 导出数据
|
||||
return exc.WriteToExcel()
|
||||
}
|
||||
|
||||
func main(){
|
||||
var (
|
||||
reportData []EpidemicPreventStaticReport
|
||||
excel EpidemicPreventStaticReport
|
||||
)
|
||||
|
||||
//do something
|
||||
//..
|
||||
//..
|
||||
|
||||
path,filename,err:=excel.WriteToExcel(reportData)
|
||||
if err!=nil{
|
||||
fmt.Println(err.Error())
|
||||
}else{
|
||||
fmt.Printf("path:%v\nfilename:%v\n",path,filename)
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
## 使用说明
|
||||
此模块的使用流程如下
|
||||
### 1. 创建excel模板，定义好工作簿名称和表头
|
||||
请注意，程序默认数据都是一行行连续的。如果两条数据之间间隔了一个或多个空行，导出的数据可能会出现错误。
|
||||
|
||||
### 2. 定义工作簿数据结构
|
||||
注意事项:
|
||||
1. 结构体字段顺序要与工作簿的表头顺序一一对应、命名规则随意;
|
||||
2. json标签用于数据的转换，同时也便于将结构体直接作为接口请求参数来使用;没有json标签时，数据将会被忽略;
|
||||
```go
|
||||
type Sheet1 struct {
|
||||
Xid int `json:"xid"`
|
||||
Name string `json:"name"`
|
||||
Age int `json:"age"`
|
||||
}
|
||||
```
|
||||
### 3. 准备数据,实例化sheet对象
|
||||
数据类型至此结构体和切片<br/>
|
||||
`NewSheet`方法的第一个参数是工作簿名称，需要与模板文件中的对应,不然导出数据时会报错
|
||||
```go
|
||||
//准备数据
|
||||
var sheet1Data = []Sheet1Define{
|
||||
{1, "张三", 16},
|
||||
{2, "黑猫警长", 18},
|
||||
}
|
||||
//实例化sheet对象
|
||||
var sheet1 = excel.NewSheet("Sheet1", &sheet1Data)
|
||||
```
|
||||
### 4 生成excel文件
|
||||
### 4.1 直接生成文件
|
||||
如果你不需要什么额外操作，只想直接生成excel文件，那么可以直接调用这个方法
|
||||
```go
|
||||
//定义后缀名生成器，如果不需要可以传nil
|
||||
var suffixFunc = func() string { return fmt.Sprintf("%v", time.Now().Unix()) }
|
||||
//导出文件
|
||||
path,err:=excel.WriteToExcel("demo.xlsx", &suffixFunc, "./", "./demo.xlsx", sheet_1)
|
||||
```
|
||||
#### 生成效果:
|
||||
|
||||
|
||||
### 4.2 `ExcelCreator`
|
||||
ExcelCreator可以用来对工作簿和工作簿中的数据进行增删改查，以及生成文件。
|
||||
#### 4.2.1 实例化`ExcelCreator`
|
||||
```go
|
||||
|
||||
var suffixFunc = func() string { return fmt.Sprintf("%v", time.Now().Unix()) } //文件后缀名生成方法
|
||||
exCreator,err := excel.NewExcel("demo.xlsx", &suffixFunc, "./", "./demo.xlsx", sheet_1)
|
||||
if err!=nil{
|
||||
fmt.Println(err.Error())
|
||||
}
|
||||
//可连续添加多个工作簿或者不传，当然也支持一张工作簿数据的多次传入
|
||||
//exCreator,err := excel.NewExcel("demo.xlsx", &suffixFunc, "./", "./demo.xlsx", sheet_1,sheet_2,sheet_3)
|
||||
//exCreator,err := excel.NewExcel("demo.xlsx", &suffixFunc, "./", "./demo.xlsx")
|
||||
//exCreator,err := excel.NewExcel("demo.xlsx", &suffixFunc, "./", "./demo.xlsx", sheet_1_1,sheet_1_2,sheet_1_3)
|
||||
|
||||
//不使用文件后缀名
|
||||
//exCreator,err := excel.NewExcelCreator("demo.xlsx", nil, "./", "./demo.xlsx", sheet_1)
|
||||
//exCreator,err := excel.NewExcelCreatorWithoutSuffix("demo.xlsx","./", "./demo.xlsx", sheet_1)
|
||||
```
|
||||
#### `FileName` 和 `filesSuffix`参数的说明
|
||||
当设置了`filesSuffix`参数后，创建excel文件时会自动生成文件后缀名。
|
||||
如`FileName`设置为"demo.xlsx"、`filesSuffix`返回值为"20200723",那么最终文件名为"demo20200723.xlsx"
|
||||
|
||||
### 4.2.2 新增工作簿
|
||||
如果工作簿已存在，数据会组合而不是覆盖
|
||||
```go
|
||||
var err = exCreator.SheetsAdd(sheet_2)
|
||||
```
|
||||
### 4.2.3 删除工作簿
|
||||
```go
|
||||
var err = exCreator.SheetsDelete(sheet_2.SheetName())
|
||||
```
|
||||
|
||||
### 4.2.5 取出工作簿map和缓存数据
|
||||
工作簿存储在`ExcelCreator.Sheets`中,存储结构为`map[string][]sheet`。string即工作簿名称。取出后可以进行任意的操作
|
||||
```go
|
||||
var sheets = exCreator.Sheets
|
||||
datas:= sheets["Sheet1"].GetDatas
|
||||
//do somthing...
|
||||
```
|
||||
|
||||
### 4.2.6 将数据生成到文件
|
||||
```go
|
||||
path,fileName, err := exCreator.WriteToExcel()
|
||||
if err != nil {
|
||||
fmt.Println(err.Error())
|
||||
} else {
|
||||
fmt.Println(path)
|
||||
fmt.Println(fileName)
|
||||
}
|
||||
```
|
||||
|
||||
## 相关问题
|
||||
### 1. 为什么不支持通过代码直接生成表头？
|
||||
鉴于在部分场景下，表头格式比较复杂，且通过代码生成灵活较度差,单元格格式通过代码设置比较繁琐。相比较下，没有直接创建excel文件模板来调整更为直观方便，所以没做此方面的设计。
|
||||
@ -1,41 +0,0 @@
|
||||
// Package utils -----------------------------
|
||||
// @file : excelHelper.go
|
||||
// @author : JJXu
|
||||
// @contact : wavingbear@163.com
|
||||
// @time : 2022/6/9 13:41
|
||||
// -------------------------------------------
|
||||
package excel
|
||||
|
||||
import (
|
||||
"fmt"
|
||||
"strconv"
|
||||
)
|
||||
|
||||
//行列坐标值转换为excel的坐标。注意row和columnCount的初始值都是1
|
||||
func GetCellIndex(row int, columnCount int) string {
|
||||
var column = getColumnIndex(columnCount)
|
||||
return fmt.Sprintf("%s%d", column, row)
|
||||
}
|
||||
|
||||
//获取excel的列索引
|
||||
var columnIndices = []string{"A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V", "W", "X", "Y", "Z"}
|
||||
|
||||
func getColumnIndex(num int) string {
|
||||
num--
|
||||
var column = columnIndices[num%26]
|
||||
for num = num / 26; num > 0; num = num / 26 {
|
||||
column = columnIndices[(num-1)%26] + column
|
||||
num--
|
||||
}
|
||||
return column
|
||||
}
|
||||
|
||||
func Int[T int | int | uint8 | uint32 | uint64 | int32 | int64](value string) T {
|
||||
v, _ := strconv.Atoi(value)
|
||||
return T(v)
|
||||
}
|
||||
|
||||
func Float[T float64 | float32](value string) T {
|
||||
v, _ := strconv.ParseFloat(value, 64)
|
||||
return T(v)
|
||||
}
|
||||
Loading…
Reference in New Issue
Block a user