golang安装air实现热加载

安装方法分版本稍微不同

// 1.16及其以前go 
go get -u github.com/cosmtrek/air

//1.16及其以后install github.com/cosmtrek/air@latest

在项目根目录下进行安装，且需要创建一个配置文件。(与main.go同级)

我们是在windows下所以编译后的文件名为main.exe，如果是linux下main即可。

root = "."
testdata_dir = "testdata"
tmp_dir = "tmp"

[build]
  args_bin = []
  bin = "./tmp/main.exe"
  cmd = "go build -o ./tmp/main.exe ."
  delay = 1000
  exclude_dir = ["assets", "tmp", "vendor", "testdata"]
  exclude_file = []
  exclude_regex = ["_test.go"]
  exclude_unchanged = false
  follow_symlink = false
  full_bin = ""
  include_dir = []
  include_ext = ["go", "tpl", "tmpl", "html"]
  kill_delay = "0s"
  log = "build-errors.log"
  send_interrupt = false
  stop_on_error = true

[color]
  app = ""
  build = "yellow"
  main = "magenta"
  runner = "green"
  watcher = "cyan"

[log]
  time = false

[misc]
  clean_on_exit = false

[screen]
  clear_on_rebuild = false

配置文件准备好后，就可以开启一个cmd(管理员模式)，切换到项目目录，运行air命令，结果类似如下图。

air