The following tutorial column fromgolangwill introduce to you how to use air to automatically reload the code. I hope it will be helpful to friends in need!

Air can monitor the project code in real time, automatically recompile and execute after the code changes

Install Air (windows )

(1). You can download Air athttps://github.com/cosmtrek/air/releases, put it into the bin directory under the GO installation directory, and rename it Forair.exe

(2), in the windows command window, you can also usecurl -fLo air.exe https://git.io/windows_aircommand to install Air (to access the external network, enable GO Module and set Detailed explanation of using air to automatically reload code Proxy for acceleration)

After installation, we can use theair -vcommand to check in the built-in command line terminal of Detailed explanation of using air to automatically reload codeLand Whether the installation is successful:

Use and test Air

Enable Air# through theair

command

##Run the following code:

package mainimport ( "fmt" "net/http")func handlerFunc(w http.ResponseWriter, r *http.Request) { fmt.Fprint(w, "
Air自动重载
")}func main(){ http.HandleFunc("/", handlerFunc) http.ListenAndServe(":3030", nil)}
 

Access localhost:3030/ in the browser and display

Modify the code

package mainimport ( "fmt" "net/http")func handlerFunc(w http.ResponseWriter, r *http.Request) { fmt.Fprint(w, "
Air自动重载
")}func main(){ http.HandleFunc("/", handlerFunc) http.ListenAndServe(":3000", nil)}
 

Access localhost:3030/ and localhost:3000/ respectively, the effect is as follows:

## Code versionUse the command to check the file status:

$ git status

It is not difficult to find that the

tmp

directory appears in the project root directory. This directory It is the storage place for Air compiled files. We need to set up the version controller to exclude thetmpdirectory.Create a new

.gitignore

file in the root directory, which instructs Git which files and directories to ignore when you commit. After creation, add thetmpdirectory to the.gitignorefile:

At this point, we can use the command to view the file status. It can be found that the tmp directory is excluded:

The above is the use of Air automatic reloading in the GO project.

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