Golang 操做Excel文件

平常開發中會遇處處理Excel文件的相關操做，這裏推薦一款應用比較普遍的操做Excel的開源工具Excelize。

Excelize是一個用Go語言編寫的庫，提供了一組容許您寫入和讀取XLSX / XLSM / XLTM文件的功能。支持讀寫由Microsoft Excel™2007和更高版本生成的電子表格文檔。經過高度兼容性支持複雜的組件，並提供了流式API，用於從工做表中生成或讀取包含大量數據的數據。該庫須要Go版本1.10或更高版本。能夠使用go的內置文檔工具查看完整的API文檔，也能夠在go.dev和docs reference上在線查看。

建立Excel文件

示例

package main

import (
    "fmt"
    "github.com/360EntSecGroup-Skylar/excelize"
)

func main() {
    f := excelize.NewFile()
    // Create a new sheet.
    index := f.NewSheet("Sheet2")
    // Set value of a cell.
    f.SetCellValue("Sheet2", "A2", "Hello world.")
    //設置單元格樣式
    style, err := f.NewStyle(`{
    "font":
    {
        "bold": true,
        "family": "font-family",
        "size": 20,
        "color": "#777777"
    }
}`)
    if err != nil {
        fmt.Println(err)
    }
    f.SetCellStyle("Sheet1", "B1", "B1", style)
    f.SetCellValue("Sheet1", "B1", "hello")

    // Set active sheet of the workbook.
    f.SetActiveSheet(index)
    // Save xlsx file by the given path.
    if err := f.SaveAs("Book1.xlsx"); err != nil {
        fmt.Println(err)
    }
}

插入圖片到單元格

示例：

package main

import (
    "fmt"
    _ "image/gif"
    _ "image/jpeg"
    _ "image/png"

    "github.com/360EntSecGroup-Skylar/excelize"
)

func main() {
    f, err := excelize.OpenFile("Book1.xlsx")
    if err != nil {
        fmt.Println(err)
        return
    }
    // Insert a picture.
    if err := f.AddPicture("Sheet1", "A2", "image.png", ""); err != nil {
        fmt.Println(err)
    }
    // Insert a picture to worksheet with scaling.
    if err := f.AddPicture("Sheet1", "D2", "image.jpg", `{"x_scale": 0.5, "y_scale": 0.5}`); err != nil {
        fmt.Println(err)
    }
    // Insert a picture offset in the cell with printing support.
    if err := f.AddPicture("Sheet1", "H2", "image.gif", `{"x_offset": 15, "y_offset": 10, "print_obj": true, "lock_aspect_ratio": false, "locked": false}`); err != nil {
        fmt.Println(err)
    }
    // Save the xlsx file with the origin path.
    if err = f.Save(); err != nil {
        fmt.Println(err)
    }
}

讀取Excel文件

示例

package main

import (
    "fmt"

    "github.com/360EntSecGroup-Skylar/excelize"
)

func main() {
    f, err := excelize.OpenFile("Book1.xlsx")
    if err != nil {
        fmt.Println(err)
        return
    }
    // Get value from cell by given worksheet name and axis.
    cell, err := f.GetCellValue("Sheet1", "B2")
    if err != nil {
        fmt.Println(err)
        return
    }
    fmt.Println(cell)
    // Get all the rows in the Sheet1.
    rows, err := f.GetRows("Sheet1")
    for _, row := range rows {
        for _, colCell := range row {
            fmt.Print(colCell, "\t")
        }
        fmt.Println()
    }
}

生成Excel文件並下載

示例

package main

import (
    "github.com/360EntSecGroup-Skylar/excelize"
    "log"
    "net/http"
)

func down(w http.ResponseWriter, r *http.Request) {
    f := excelize.NewFile()
    // Set value of a cell.
    f.SetCellValue("Sheet1", "A2", "Hello world.")
    // Save xlsx file by the given path.
    //if err := f.SaveAs("Book1.xlsx"); err != nil {
    //    fmt.Println(err)
    //}

    w.Header().Set("Content-Type", "application/octet-stream")
    w.Header().Set("Content-Disposition", "attachment; filename="+"100之內口算題.xlsx")
    w.Header().Set("Content-Transfer-Encoding", "binary")
    _ = f.Write(w)
}

func main() {
    http.HandleFunc("/", down) //   設置訪問路由
    log.Fatal(http.ListenAndServe(":8080", nil))
}

相關資料

https://github.com/360EntSecG...

https://xuri.me/excelize/zh-h...