Programmer Group

I. Basic API for file operation func main() { //Absolute path fileInfo , err := os.Stat("E:/a.txt") fileInfo , err = os.Stat("E:/") if err !=nil { fmt.Println("err:" , err.Error()) } else { fmt.Printf("%T \n" , fileInfo) fmt.Printf("%v \n" , fileInfo) //file name fmt.Print ...

Start In the previous article, I learned the overall process of the Gin framework, but I looked at the research of the main process in the source code which was affected by many scattered and small functions. So I think I can imitate the Gin framework and write a demo with only the main process. We can learn more about the source code in the pr ...

golang can use the library github.com/streadway/amqp to operate rabbitmq install go get github.com/streadway/amqp Connect conn, err := amqp.Dial(amqp://guest:guest@172.17.84.205:5672/) Establishing channels ch, err := conn.Channel() Statement Queue q, err := ch.QueueDeclare( "testqueue", //Queue name true, //dura ...

Compared with using a middleware to "brutally" cache interface response and improve interface query speed, Repository cache can better control cache granularity and update time Lu Xun. Articles are updated in my Know about columns and Blog scene Tester-A: why is the getInfo interface so slow? 5+s? QPS is only 10!!!! RD-B: This is bec ...

summary Logrus is a log system developed for go language. In this article, we will make a record of some problems encountered in the process of starting logrus. This record refers to This article . Let's start! Upper hand package main import ( log "github.com/sirupsen/logrus" ) func main() { log.WithFields(log.Fields{ "animal": "wal ...

Starting from Go1.11, golang officially supports the new dependency management tool, go modgo mod download: download the dependent module s to the local cachego mod edit: edit go.modgo mod graph: print module dependency graphgo mod init: initialize go.mod in the current directory (that is, a new go.mod file will be created)Go module tidy: reorg ...

P is a concept introduced in Go1.1, initially equal to the number of CPU cores by default. P is just a logical concept and has nothing to do with CPU. The notes to P in source code go/1.13.4/libexec/src/runtime/proc.go are as follows: // P - processor, a resource that is required to execute Go code. // M must have an associated P to execute Go ...

Pay attention to the front of the public, Chinese cabbage, more front-end small dry goods waiting for you! The public number will share the front-end technology from time to time, making progress every day and growing with everyone. With the emergence of Promise, the majority of front-end developers have been successfully saved from the abyss o ...

introduction Go builds a simple and high-performance native network model (I/O multiplexing netpoll based on go) based on I/O multiplexing and goroutine, which provides a simple network programming mode such as goroutine per connection. In this mode, developers use the synchronous mode to write asynchronous logic, which greatly reduces the ment ...

overviewFirst, synchronize the following project overview:The last article shared the routing Middleware - Jaeger link tracking (actual combat). The response is really unexpected. The "Go China" public number has also been forwarded. Many friends have exchanged with my friends, calling me a big God. Actually, I am a big God, but I hav ...