Go

使用gvm管理Go版本 moovweb/gvm Go Version Manager Shell 10552 558

官网：jwt.io jwt的优势 jwt无状态, 服务端不需要存储

Defer两阶段延迟执行 # 记录函数执行时间 package main import ( "log" "time" ) func main()

服务增加 pprof 监控 # package main import( "net/http" _ "net/http/pprof" ) func main() { go func() { log.Println(http.ListenAndServe("localhost:6060", nil)) }() // do something } pprof 包

获取远程图片信息 # image库针对远程图片使用image.D

限流规则 # // Strategy type TokenCalculateStrategy int32 const ( Direct TokenCalculateStrategy = iota WarmUp MemoryAdaptive ) // Rule describes the strategy of flow control, the flow control

链表简述 # 链表（Linked list）是一种常见的基础数据结

zap # go get -u go.uber.org/zap 初始化logger # package logs import ( "os" "github.com/natefinch/lumberjack" "go.uber.org/zap" "go.uber.org/zap/zapcore" ) func InitLogger() { // 生

viper # go get github.com/spf13/viper 封装加载配置方法 # package configs import "github.com/spf13/viper" func LoadConfig(filepath string, encoding string, config interface{}) error { vp := viper.New()

WaitGroup # type WaitGroup func (wg *WaitGroup) Add(delta int) func (wg *WaitGroup) Done() func (wg *WaitGroup) Wait() package main import ( "fmt" "sync" ) func main() { var wg sync.WaitGroup