golang利用excelize连接数据库生成excel表

package main

import (
    "fmt"
    "strconv"

    //"pkg/mod/github.com/360!ent!sec!group-!skylar/excelize@v1.4.1"

    "github.com/360EntSecGroup-Skylar/excelize"
    _ "github.com/go-sql-driver/mysql"
    "github.com/jinzhu/gorm"
    "log"
)
var DB1 *gorm.DB
type User struct {
    Rechargedate string `json:"rechargedate"`
    Rechargetime string `json:"rechargetime"`
    Rechargezone string `json:"rechargezone"`
    Rechargechannel string `json:"rechargechannel"`
    Rechargemoney string  `json:"rechargemoney"`
    Rechargepeople string `json:"rechargepeople"`

}
//初始化并保持链接
func init() {
    var err error
    //DB, err = gorm.Open("mysql", "backupinfo:backupinfo123123@tcp(127.0.0.1:xxxxx)/test?charset=utf8&parseTime=True&loc=Local")
    //DB, err = gorm.Open("mysql", "backupinfo:backupinfo123123@tcp(xxxxx:xxxx)/test?charset=utf8&parseTime=True&loc=Local")
    DB1, err = gorm.Open("mysql", "xx:xxx@tcp(xxx63994)/xxx?charset=utf8&parseTime=True&loc=Local")
    //    DB.LogMode(true)//打印sql语句
    if err != nil {
        log.Fatalf("database11 connect is err:%s", err.Error())
    } else {
        log.Print("connect database11 is success")
    }
    err = DB1.DB().Ping()
    if err != nil {
        DB1.DB().Close()
        log.Fatalf("Error on opening database11 connection: %s", err.Error())
    }
}
func  GetRoleList1() (userlist []User, err error) {
    //err = DB1.Find(&rolelist,"id < ?",10000).Error
    //err = DB.Find(&rolelist,20).Error
    //fmt.Println(rolelist)
    //var userlist []User
    //DB1.Raw("select id,publish_id from users limit 10").Find(&userlist)

    //DB1.Raw("select id,publish_id from users limit 10").Find(&userlist)
    DB1.Raw("SELECT DATE(updated_at) as rechargedate ,DATE_FORMAT(updated_at,'%H') as rechargetime  ,server_id as rechargezone,channel_id as rechargechannel ,SUM(amount)/100 as rechargemoney,COUNT(DISTINCT(open_id)) as rechargepeople FROM orders
    fmt.Println("sql执行结果!!!!")
    fmt.Println(userlist)
    return userlist, err
}
func main() {
    //var user User
    //var userlists []User
    userlist,_ := GetRoleList1()
    fmt.Println("打印数据:")
    var userlists []map[string]interface{}
    for i := 0; i < len(userlist); i++ {
        userdic := make(map[string]interface{})
        userdic["rechargedate"] = userlist[i].Rechargedate
        userdic["rechargetime"] = userlist[i].Rechargetime
        userdic["rechargezone"] = userlist[i].Rechargezone
        userdic["rechargechannel"] = userlist[i].Rechargechannel
        userdic["rechargemoney"] = userlist[i].Rechargemoney
        userdic["rechargepeople"] = userlist[i].Rechargepeople
        userlists = append(userlists, userdic)

    }
    fmt.Println(userlist)
    fmt.Println(userlists)

    // 列标题
    //titles := []string{
    //  "姓名","年龄","sex",
    //}
    //新的列标题
    titles := []string{
        "充值日期","充值时间","充值区服","充值渠道","实付金额","充值人数",
    }
    //数据源
    //data := []map[string]interface{}{
    //  map[string]interface{}{"name":"jack","age":18,"sex":1},
    //  map[string]interface{}{"name":"mary","age":28,"sex":2},
    //}
    //fmt.Println(data)

    f := excelize.NewFile()

    // Create a new sheet.
    index := f.NewSheet("Sheet1")

    for clumnNum,v := range titles {
        sheetPosition := Div(clumnNum+1)+"1"
        fmt.Print(sheetPosition)
        f.SetCellValue("Sheet1", sheetPosition,v)
    }
    for lineNum,dic := range userlists {
        clumnNum := 0

        fmt.Println(lineNum,dic)
        for k,_ := range dic{
            clumnNum++;
            Anewposition := "A" + strconv.Itoa(lineNum+2)
            Bnewposition := "B" + strconv.Itoa(lineNum+2)
            Cnewposition := "C" + strconv.Itoa(lineNum+2)
            Dnewposition := "D" + strconv.Itoa(lineNum+2)
            Enewposition := "E" + strconv.Itoa(lineNum+2)
            Fnewposition := "F" + strconv.Itoa(lineNum+2)
            switch k {
            case  "rechargedate":
                fmt.Println("name的值是:",dic["name"])
                f.SetCellValue("Sheet1", Anewposition,dic["rechargedate"])
                break
            case "rechargetime":
                f.SetCellValue("Sheet1", Bnewposition,dic["rechargetime"])
                break
            case "rechargezone":
                f.SetCellValue("Sheet1", Cnewposition,dic["rechargezone"])
                break
            case "rechargechannel":
                f.SetCellValue("Sheet1", Dnewposition,dic["rechargechannel"])
                break
            case "rechargemoney":
                f.SetCellValue("Sheet1", Enewposition,dic["rechargemoney"])
                break
            case "rechargepeople":
                f.SetCellValue("Sheet1", Fnewposition,dic["rechargepeople"])
                break
            }

        }
    }
    // Set active sheet of the workbook.
    f.SetActiveSheet(index)
    //生成图形
    if err := f.AddChart("Sheet1", "M1", `{"type":"col3DClustered","series":[{"name":"Sheet1!$C$2","categories":"Sheet1!$B$2:$B$61","values":"Sheet1!$E$2:$E$61"},{"name":"Sheet1!$C$13","categories":"Sheet1!$B$2:$B$61","values":"Sheet1!$E$2:$E$61"},{"name":"Sheet1!$C$32","categories":"Sheet1!$B$2:$B$61","values":"Sheet1!$E$2:$E$61"}],"title":{"name":"Fruit 3D Clustered Column Chart"}}`); err != nil {
        fmt.Println(err)
        return
    }
    // Save xlsx file by the given path.
    if err := f.SaveAs("Book2.xlsx"); err != nil {
        println(err.Error())
    }
}
// Div 数字转字母
func Div(Num int)  string{
    var(
        Str string = ""
        k int
        temp []int   //保存转化后每一位数据的值，而后经过索引的方式匹配A-Z
    )
    //用来匹配的字符A-Z
    Slice := []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"}

    if Num >26 {  //数据大于26须要进行拆分
        for {
            k = Num % 26  //从个位开始拆分，若是求余为0，说明末尾为26，也就是Z，若是是转化为26进制数，则末尾是能够为0的，这里必须为A-Z中的一个
            if k == 0 {
                temp = append(temp, 26)
                k = 26
            } else {
                temp = append(temp, k)
            }
            Num = (Num - k) / 26 //减去Num最后一位数的值，由于已经记录在temp中
            if Num <= 26{   //小于等于26直接进行匹配，不须要进行数据拆分
                temp = append(temp, Num)
                break
            }
        }
    }else{
        return Slice[Num]
    }
    for _,value := range temp{
        Str = Slice[value] + Str //由于数据切分后存储顺序是反的，因此Str要放在后面
    }
    return Str
}