Golang 操作Excel文件

日常开发中会遇到处理Excel文件的相关操作，这里推荐一款应用比较广泛的操作Excel的开源工具Excelize。

Excelize是一个用Go语言编写的库，提供了一组允许您写入和读取XLSX / XLSM / XLTM文件的功能。支持读写由Microsoft Excel™2007和更高版本生成的电子表格文档。通过高度兼容性支持复杂的组件，并提供了流式API，用于从工作表中生成或读取包含大量数据的数据。该库需要Go版本1.10或更高版本。可以使用go的内置文档工具查看完整的API文档，也可以在go.dev和docs reference上在线查看。

创建Excel文件

示例

1package main
2
3import (
4    "fmt"
5    "github.com/360EntSecGroup-Skylar/excelize"
6)
7
8func main() {
9    f := excelize.NewFile()
10    // Create a new sheet.
11    index := f.NewSheet("Sheet2")
12    // Set value of a cell.
13    f.SetCellValue("Sheet2", "A2", "Hello world.")
14    //设置单元格样式
15    style, err := f.NewStyle(`{
16    "font":
17    {
18        "bold": true,
19        "family": "font-family",
20        "size": 20,
21        "color": "#777777"
22    }
23}`)
24    if err != nil {
25        fmt.Println(err)
26    }
27    f.SetCellStyle("Sheet1", "B1", "B1", style)
28    f.SetCellValue("Sheet1", "B1", "hello")
29
30    // Set active sheet of the workbook.
31    f.SetActiveSheet(index)
32    // Save xlsx file by the given path.
33    if err := f.SaveAs("Book1.xlsx"); err != nil {
34        fmt.Println(err)
35    }
36}

插入图片到单元格

示例：

1package main
2
3import (
4    "fmt"
5    _ "image/gif"
6    _ "image/jpeg"
7    _ "image/png"
8
9    "github.com/360EntSecGroup-Skylar/excelize"
10)
11
12func main() {
13    f, err := excelize.OpenFile("Book1.xlsx")
14    if err != nil {
15        fmt.Println(err)
16        return
17    }
18    // Insert a picture.
19    if err := f.AddPicture("Sheet1", "A2", "image.png", ""); err != nil {
20        fmt.Println(err)
21    }
22    // Insert a picture to worksheet with scaling.
23    if err := f.AddPicture("Sheet1", "D2", "image.jpg", `{"x_scale": 0.5, "y_scale": 0.5}`); err != nil {
24        fmt.Println(err)
25    }
26    // Insert a picture offset in the cell with printing support.
27    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 {
28        fmt.Println(err)
29    }
30    // Save the xlsx file with the origin path.
31    if err = f.Save(); err != nil {
32        fmt.Println(err)
33    }
34}

读取Excel文件

示例

1package main
2
3import (
4    "fmt"
5
6    "github.com/360EntSecGroup-Skylar/excelize"
7)
8
9func main() {
10    f, err := excelize.OpenFile("Book1.xlsx")
11    if err != nil {
12        fmt.Println(err)
13        return
14    }
15    // Get value from cell by given worksheet name and axis.
16    cell, err := f.GetCellValue("Sheet1", "B2")
17    if err != nil {
18        fmt.Println(err)
19        return
20    }
21    fmt.Println(cell)
22    // Get all the rows in the Sheet1.
23    rows, err := f.GetRows("Sheet1")
24    for _, row := range rows {
25        for _, colCell := range row {
26            fmt.Print(colCell, "\t")
27        }
28        fmt.Println()
29    }
30}

生成Excel文件并下载

示例

1package main
2
3import (
4    "github.com/360EntSecGroup-Skylar/excelize"
5    "log"
6    "net/http"
7)
8
9func down(w http.ResponseWriter, r *http.Request) {
10    f := excelize.NewFile()
11    // Set value of a cell.
12    f.SetCellValue("Sheet1", "A2", "Hello world.")
13    // Save xlsx file by the given path.
14    //if err := f.SaveAs("Book1.xlsx"); err != nil {
15    //    fmt.Println(err)
16    //}
17
18    w.Header().Set("Content-Type", "application/octet-stream")
19    w.Header().Set("Content-Disposition", "attachment; filename="+"100以内口算题.xlsx")
20    w.Header().Set("Content-Transfer-Encoding", "binary")
21    _ = f.Write(w)
22}
23
24func main() {
25    http.HandleFunc("/", down) //   设置访问路由
26    log.Fatal(http.ListenAndServe(":8080", nil))