util

Documentation

Index

• Variables
• func BankerRounding(num interface{}, accuracy int) (f float64)
• func ByteToFloat32(bytes []byte) float32
• func CheckPwd(reqPwd, dataPwd string) error
• func Encrypt(password string) (encryptPwd string)
• func FatalOnError(err error, msg string, data ...interface{})
• func MapRound(m map[string]interface{}, accuracy int)
• func NewLen(length int) string
• func NewLenChars(length int, chars []byte) string
• func WipeOutZero(buf []byte) []byte
• type Exception
  • func (e Exception) Error() error
  • func (e Exception) Name() string
  • func (e Exception) String() string
• type Message

Variables

var AsciiChars = []byte("ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789!@#$%^&*()-_=+,.?/:;{}[]`~")

Functions

func BankerRounding

func BankerRounding(num interface{}, accuracy int) (f float64)

银行家舍入法 不适用于取整，特别是1，会输出0 具体规则： 1. 被修约的数字小于5时，该数字舍去； 2. 被修约的数字大于5时，则进位； 3. 被修约的数字等于5时，要看5前面的数字，若是奇数则进位，若是偶数则将5舍掉，即修约后末尾数字都成为偶数；若5的后面还有不为“0”的任何数，则此时无论5的前面是奇数还是偶数，均应进位。

func ByteToFloat32

func ByteToFloat32(bytes []byte) float32

BytesToUint16 converts a little endian array of bytes to an array of unit16s

func CheckPwd

func CheckPwd(reqPwd, dataPwd string) error

不同数据的加密值一定不同，相同数据的加密值一定相同，因此，在处理用户登录时只需要对用户传递的密码做加密处理，并与原加密值做比较是否一致即可

func Encrypt

func Encrypt(password string) (encryptPwd string)

MD5单向加密

func FatalOnError

func FatalOnError(err error, msg string, data ...interface{})

func MapRound

func MapRound(m map[string]interface{}, accuracy int)

将map中的float值进行舍入

func NewLen

func NewLen(length int) string

func NewLenChars

func NewLenChars(length int, chars []byte) string

NewLenChars returns a new random string of the provided length, consisting of the provided byte slice of allowed characters(maximum 256).

func WipeOutZero

func WipeOutZero(buf []byte) []byte

去除[]byte中的0 适用于提取ascII码

Types

type Exception

type Exception int

var (
	Success Exception = 2000

	//请求类
	RequestTimeOut Exception = 3000
	InvalidParams  Exception = 3001

	//序列化类
	UnmarshalFailed Exception = 6000
	MarshalFailed   Exception = 6001

	//消息处理类
	RedisPublishFailed   Exception = 7000
	RedisSubscribeFailed Exception = 7002
	SetCacheFailed       Exception = 7003
	GetCacheFailed       Exception = 7004

	MQPublishFailed Exception = 7005

	//文件表格操作类
	CreateXLSXFailed Exception = 8000
	InvalidExcel     Exception = 8001
	UploadFileFailed Exception = 8002
	OpenFileFailed   Exception = 8003
	CreateFileFailed Exception = 8004
	WriteFileFailed  Exception = 8005
	ReadFileFailed   Exception = 8006

	//微服务类
	DomainRecordNotExist        Exception = 9000
	GetDomainRecordsFailed      Exception = 9001
	UpdateDomainRecordFailed    Exception = 9002
	CheckDomainRecordFailed     Exception = 9003
	SetDomainRecordStatusFailed Exception = 9004

	EnableThingFailed     Exception = 9010
	DisableThingFailed    Exception = 9011
	CheckDeviceNameFailed Exception = 9012
	RegisterDeviceFailed  Exception = 9013
	GetDeviceSecretFailed Exception = 9014
	SendCaptchaFailed     Exception = 9020

	// influx
	WriteInfluxFailed Exception = 9030
	QueryInfluxFailed Exception = 9031

	// 通用
	UnknownType Exception = 10000
)

func (Exception) Error

func (e Exception) Error() error

func (Exception) Name

func (e Exception) Name() string

func (Exception) String

func (e Exception) String() string

type Message

type Message interface {
	Error() error
	Name() string
	String() string
}