I deployed a beego project website under linux. When I updated the code, I didn t stop the service and deleted the program files directly. but I find that website access is normal. is it possible that after starting the service, the system generate...
A common system in the company, a statistical method of system performance indicators. can not use full log, full log is relatively large, if sampling, what good way, sampling, can be closer to the real situation? if sampling, is there a similar set up ...
for example, is there any way for go to convert the article content of markdown grammar into html content? ...
wrote a distributed push service in golang has multiple connection layers and a topic management service multiple connection layers transmit to topic through socket now I want to change the connection layer to grpc calls I wonder if there will be a d...
package main import () "sync" ) type data struct { sync.Mutex } func (d data) test (s string) { d.Lock() defer d.Unlock() for i:=0;i<5 ;iPP { println(s,i) time.Sleep(time.Second) } } func test_lock () { var wg sync.WaitGro...
done:=make(chan struct{}) c:=make(chan int) go func() { defer close(done) for{ s,ok:=<-c if !ok{ close(c) return } println(s) } }() for i:=0;i<1 ;iPP { println("put&quo...
func test_1 () { exit:=make(chan struct{}) go func() { defer close(exit) defer println("exit") func(){ defer func() { println("b:",recover()==nil,recover()) }() func (){ pri...
ask God for help in decrypting. I tried to use either an 8-byte key or a 24-byte key in golang to ask for help package com.mycompany.mavenproject1; import java.io.UnsupportedEncodingException; import java.security.InvalidKeyException; import java.secu...
with regard to the mode of Golang or-channle, multiple cooperators are concurrent. If there is an end in one of these protocols, it is to send out the relevant message and end the blocking. The relevant understanding can be directly viewed from the code...
recently in learning golang, channel timeout here, want to try more than one program how to judge timeout, I wrote the code as follows: opened 10 programs, it is strange why half of the normal output, half timeout, just a simple output within 1 second ...
the packages imported by go are all online, and it will not be found. What should I do if I can t find them? you can t manually go down to the local area one by one. That s a lot. ...
should business pseudo-deletion be designed like this? now in the era of big data, data is very important, so some data systems generally do not do physical deletion, deletion will also have backup, so it is necessary to design a set of pseudo-deletio...
background vm, in Iaas is currently used in the project. All operations are connected through ssh. Pm indicates whether you want to write an agent to use in it. Now it s disgusting to ssh every operation. talk about the benefits of using ssh in my ...
using the NewDateTimePicker time selector, how to get the time value datetimepicker: = ui.NewDateTimePicker () datetimepicker.Enable () ...
mongodb involves updating multiple tables and has no transaction. How to deal with it ...
Program snippet is as follows: runtime.GOMAXPROCS(runtime.NumCPU()) maxPage := getMaxPage() maxPage := 10 if maxPage > 0 { jobs := make(chan int, maxPage) results := make(chan []map[string]string, ma...
cannot jump using the git, function that comes with vscode. How to solve the problem? ...
MAC vim-go ( https: github.com fatih vim-go) completion + < Cmuro > this error occurs: Omni completion (^ O ^ N ^ P) Pattern not found and the completion window has not been and cannot be used .vimrc configuration at all. set nocompatible filetyp...
A go package is actually a directory, so what s the difference between a net package and a net http package? is there a dependency between a http package located in a directory under the net package at the same level as the code file of the net package?...
solved: File.Name is the path information, FileInfo.Name is the file name, don t be confused by the name how do I get the absolute path of a file? I don t think there are any related attributes in File or FileInfo. for example, if I pass * os.File ...
? & ab&cd&ef matching rules [&] {0jue 1} ab and [&] {0jue 1} cd replacement characters are empty but the results of the two machines are different: one is? & ef, and the other is normal? & ef is it because {0jimi 1} to match? ...
problem description as described in babel for useBuilitIns , it allows @ babel preset-env to intelligently add polyfill of built-in types that are only used, that is, an on-demand reference to polyfill. .babelrc file { "presets" : ...
recently, I have seen the official coding specification used by TypeScript to constrain contributors. There are several doubts as follows: Private property names do not use the _ prefix: why not the _ prefix? Don t add I in front of the interface ...
set the session expiration time, but never expire the code is as follows prefix => , type => , auto_start => true, expire => 60, ...
problem description the company is going to develop an e-commerce website, which is developed by java in the background, and the front-end project has always been developed using vue.js, but the single-page mode is not friendly to the search engine, s...