goutil

README

Go 工具库

Documentation

Overview

Package goutil Go常用工具包

Index

• func DownloadFile(filePath string, rw http.ResponseWriter) error
• func FormatAppVersion(appVersion, GitCommit, BuildDate string) (string, error)
• func MD5(s string) string
• func PanicToError(f func()) (err error)
• func PanicTrace(err interface{}) string
• func PrintAppVersion(appVersion, GitCommit, BuildDate string)
• func RandNumber(min, max int) int
• func WorkDir() (string, error)
• type WaitGroupWrapper
  • func (w *WaitGroupWrapper) Wrap(f func())

Examples

• MD5
• PanicToError
• RandNumber

Functions

func DownloadFile

func DownloadFile(filePath string, rw http.ResponseWriter) error

DownloadFile 文件下载

func FormatAppVersion

func FormatAppVersion(appVersion, GitCommit, BuildDate string) (string, error)

FormatAppVersion 格式化应用版本信息

func MD5

func MD5(s string) string

MD5 生成MD5摘要

Example

str := "goutil"
fmt.Println(MD5(str))

Output:

3fa6e676e7d5c558e9a49b599cbc975f

func PanicToError

func PanicToError(f func()) (err error)

PanicToError Panic转换为error

Example

err := PanicToError(func() {
	var m map[string]string
	m["key"] = "value"
})
fmt.Println(err)

func PanicTrace

func PanicTrace(err interface{}) string

PanicTrace panic调用链跟踪

func PrintAppVersion

func PrintAppVersion(appVersion, GitCommit, BuildDate string)

PrintAppVersion 打印应用版本

func RandNumber

func RandNumber(min, max int) int

RandNumber 生成min - max之间的随机数 如果min大于max, panic

Example

num := RandNumber(1, 1000)
fmt.Println(num)

func WorkDir

func WorkDir() (string, error)

WorkDir 获取程序运行时根目录

Types

type WaitGroupWrapper

type WaitGroupWrapper struct {
	sync.WaitGroup
}

WaitGroupWrapper waitGroup包装

func (*WaitGroupWrapper) Wrap

func (w *WaitGroupWrapper) Wrap(f func())

Wrap 包装Add, Done方法