utils

func AddJSONFormTag ¶

func AddJSONFormTag(in string) string

AddJSONFormTag add json and form tag for a golang struct without tag and annotation

func FiltTag ¶

func FiltTag(tag string) string

Get the tag's first value seperated by ','

func FindUpperElement ¶

func FindUpperElement(s string) []string

FindUpperElement 找到字符串中大写字母的列表,附属于HumpToUnderLine

func HumpToUnderLine ¶

func HumpToUnderLine(s string) string

HumpToUnderLine 驼峰转下划线

func IfZero ¶

func IfZero(arg interface{}) bool

To judge a value whether zero or not. By the way, '%' '%%' is regarded as zero.

func In ¶

func In(s string, arr []string) bool

s 是否in arr

func MD5 ¶

func MD5(rawMsg string) string

MD5 encrypt

func Obj2MapByJson ¶

func Obj2MapByJson(obj interface{}) (map[string]interface{}, error)

Transer an obj to a map by json

func Obj2MapByReflect ¶

func Obj2MapByReflect(obj interface{}) map[string]interface{}

Transer an obj to a map by reflect

func RetryHandler ¶

func RetryHandler(n int, f func() (bool, error)) error

Execute a function n times, the function as the handler should be well format to func() (bool,error). Bool stands for its ok or not ,error stands for its error Example:

f := func() (bool, error) {
fmt.Println("connect to mysql")
return false, errors.New("time out")
}
if e := RetryHandler(3, f); e != nil {
	fmt.Println(e.Error())
}

func SmartPrint ¶

func SmartPrint(i interface{}, escapeZero ...bool)

To well print a struct type value Example:

type User struct{
	Name string
	Age int
	Sal float64
	Friends []User
}
user := User{
Name:"ft",
Age: 9,
Sal: 1000,
Friends: []User{User{"f1" , 11, 0.,nil},{"f2" , 12, 0.,nil}},
}
SmartPrint(user)

If you want those zero value not print,use it like `SmartPrint(user, true)`

func Split ¶

func Split(s string, sub string) []string

Split 增强型Split，对 a,,,,,,,b,,c 以","进行切割成[a,b,c]

func Split2 ¶

func Split2(s string, sub string, tmp *string, rs *[]string)

Split2 附属于Split，可独立使用

func TableToStruct ¶

func TableToStruct(dataSource string, tableName string) string

postgres数据库表转go model 使用时注入驱动 _ "github.com/jinzhu/gorm/dialects/postgres"

func ToLimitOffset ¶

func ToLimitOffset(sizeIn string, indexIn string, count int) (limit int, offset int)

generate limit offset by page size , page index , total count

func ToParam ¶

func ToParam(vx interface{}, tag string) string

Convert a struct type value into a format string as a=x&&b=y&&c=z sorted by key asc like a=x&b=y&c=z not b=y,a=x,c=z

func ToString ¶

func ToString(arg interface{}) string

Change arg to string if arg is a ptr kind, then change what it points to to string

func UnderLineToHump ¶

func UnderLineToHump(s string) string

UnderLineToHump 下划线转驼峰