Golang实用封装函数集一

婷姐 · 发表于 2023-4-21 16:12:08

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取上月/周开始、结束时间：

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func get_lastmonth_begin_end() (map[string]interface{} ) {

now := time.Now()
lastMonthFirstDay := now.AddDate(0, -1, -now.Day()+1)//利用此特性，可以得到上周 now.AddDate(0, 0, -int(now.Weekday())-6)的开始时间
lastMonthStart := time.Date(lastMonthFirstDay.Year(), lastMonthFirstDay.Month(), lastMonthFirstDay.Day(), 0, 0, 0, 0, now.Location()).Unix()
lastMonthEndDay := lastMonthFirstDay.AddDate(0, 1, -1)
lastMonthEnd := time.Date(lastMonthEndDay.Year(), lastMonthEndDay.Month(), lastMonthEndDay.Day(), 23, 59, 59, 0, now.Location()).Unix()


ret := make(map[string]interface{})
ret["time_begin_format"] = time.Unix(lastMonthStart, 0).Format("2006-01-02 15:04:05")
ret["time_end_format"] = time.Unix(lastMonthEnd, 0).Format("2006-01-02 15:04:05")


ret["time_begin"]       = lastMonthStart
ret["time_end"]       = lastMonthEnd

return ret
}
执行结果：
map[time_begin_format:2020-12-01 00:00:00 time_end_format:2020-12-31 23:59:59 time_begin:1606752000 time_end:1609430399]

取本周一，周末时间：

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func get_weekday_begin_end() (map[string]interface{} ) {
now := time.Now()

offset := int(time.Monday - now.Weekday())

weekStartDate := time.Date(now.Year(), now.Month(), now.Day(), 0, 0, 0, 0, time.Local).AddDate(0, 0, offset)
weekMonday := weekStartDate.Format("2006-01-02")

TimeMonday, _ := time.Parse("2006-01-02", weekMonday)
lastWeekMonday := TimeMonday.AddDate(0, 0, 6)
enddate := time.Date(lastWeekMonday.Year(), lastWeekMonday.Month(), lastWeekMonday.Day(), 23, 59, 59, 0, time.Local)
end := enddate.Format("2006-01-02 15:04:05")


ret := make(map[string]interface{})
ret["time_begin_format"] = weekMonday
ret["time_end_format"]  = end


ret["time_begin"] = weekStartDate.Unix()
ret["time_end"]    = enddate.Unix()

return ret
}

执行结果：
map[time_begin_format:2021-01-18 time_end_format:2021-01-24 23:59:59 time_begin:1610899200 time_end:1611503999]

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TyCoding · 发表于 2023-4-21 16:12:55

//分享一个比较字符串数字差值的函数：

// CalcBudgetDiff 计算预算差值
func CalcBudgetDiff(start, end string) (float64, error) {
s1, err := strconv.ParseFloat(start, 64)
if err != nil {
      return 0.00, err
}
e1, err := strconv.ParseFloat(end, 64)
if err != nil {
      return 0.00, err
}
d1 := e1 - s1
f, err := strconv.ParseFloat(fmt.Sprintf("%.2f", d1), 64)
if err != nil {
      return 0.00, err
}
return f, nil
}

//Curl函数，phper最为熟悉

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// Curl 网络请求函数
// @Summary 网络请求函数
// @Description 网络请求函数
// @Tags 网络请求函数
// @Param method: GET/POST string
// @Param dataStr string k1=v1&k2=v2或者json数据，由header头决定
// @Param header map[string]string
// @Success string, nil
func Curl(method string, urls string, dataStr string, header map[string]string) ([]byte, error) {
client := &http.Client{}
req, err := http.NewRequest(method, urls, strings.NewReader(dataStr))
if err != nil {
   return nil, err
}
if header != nil {
   for k, v := range header {
      req.Header.Set(k, v)
   }
}
resp, err := client.Do(req)
if err != nil {
   return nil, err
}
if resp.Body == nil {
   return nil, errors.New("resp.Body is empty")
}
defer resp.Body.Close()
body, err := ioutil.ReadAll(resp.Body)
if err != nil {
   return nil, err
}
if body == nil || len(body) == 0 {
   return nil, errors.New("httpDo返回的body为空")
}
return body, nil
}

//用于打印参数：

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func Debug(param ...interface{}) {
fmt.Println("+++++++++++++")
for _, v := range param {
fmt.Println(fmt.Sprintf("%+v", v))
}
fmt.Println("+++++++++++++")
}

//跨域处理

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//跨域处理
func CrosHandler() gin.HandlerFunc {
return func(context *gin.Context) {
      method := context.Request.Method
      context.Writer.Header().Set("Access-Control-Allow-Origin", "*")
      context.Header("Access-Control-Allow-Origin", "*") // 设置允许访问所有域
      context.Header("Access-Control-Allow-Methods", "POST, GET, OPTIONS, PUT, DELETE,UPDATE")
      context.Header("Access-Control-Allow-Headers", "Authorization, Content-Length, X-CSRF-Token, Token,session,X_Requested_With,Accept, Origin, Host, Connection, Accept-Encoding, Accept-Language,DNT, X-CustomHeader, Keep-Alive, User-Agent, X-Requested-With, If-Modified-Since, Cache-Control, Content-Type, Pragma,token,openid,opentoken")
      context.Header("Access-Control-Expose-Headers", "Content-Length, Access-Control-Allow-Origin, Access-Control-Allow-Headers,Cache-Control,Content-Language,Content-Type,Expires,Last-Modified,Pragma,FooBar")
      context.Header("Access-Control-Max-Age", "172800")
      context.Header("Access-Control-Allow-Credentials", "false")
      context.Set("content-type", "application/json")  设置返回格式是json

      if method == "OPTIONS" {
         context.JSON(http.StatusOK, result.Result{Code: result.OK, Data: "Options Request!"})
      }

      //处理请求
      context.Next()
}
}

独家记忆 · 发表于 2023-4-21 16:13:55

//跨域访问：cross origin resource share
func CrosHandler() gin.HandlerFunc {
return func(context *gin.Context) {
method := context.Request.Method
context.Writer.Header().Set("Access-Control-Allow-Origin", "*")
context.Header("Access-Control-Allow-Origin", "*") // 设置允许访问所有域
context.Header("Access-Control-Allow-Methods", "POST, GET, OPTIONS, PUT, DELETE,UPDATE")
context.Header("Access-Control-Allow-Headers", "Authorization, Content-Length, X-CSRF-Token, Token,session,X_Requested_With,Accept, Origin, Host, Connection, Accept-Encoding, Accept-Language,DNT, X-CustomHeader, Keep-Alive, User-Agent, X-Requested-With, If-Modified-Since, Cache-Control, Content-Type, Pragma,token,openid,opentoken")
context.Header("Access-Control-Expose-Headers", "Content-Length, Access-Control-Allow-Origin, Access-Control-Allow-Headers,Cache-Control,Content-Language,Content-Type,Expires,Last-Modified,Pragma,FooBar")
context.Header("Access-Control-Max-Age", "172800")
context.Header("Access-Control-Allow-Credentials", "false")
context.Set("content-type", "application/json") 设置返回格式是json
if method == "OPTIONS" {
context.JSON(http.StatusOK, result.Result{Code: result.OK, Data: "Options Request!"})
}
//处理请求
context.Next()
}
}