log.Error("error creating postgres connection pool","err", err) shutdown.Fatal() } shutdown.BeforeExit(func(){ pgxpool.Close() }) workers := que.NewWorkerPool( que.NewClient(pgxpool), que.WorkMap{"deployment": deployment.JobHandler(db, client, logger),"app_deletion": app_deletion.Job...
packagedaoimport("example.com/hello/config""fmt""log""time""gorm.io/driver/mysql""gorm.io/driver/postgres""gorm.io/driver/sqlite""gorm.io/gorm")// db连接vardb*gorm.DB// Setup 初始化连接funcSetup(){// db = newConnection()vardbURIstringvardialector gorm.Dialectorifconfig.DatabaseSetting....
golangpostgres连接池库golangmysql连接池原理 问题引入作为一名Golang开发者,线上环境遇到过好几次连接数暴增问题(mysql/redis/kafka等)。纠其原因,Golang作为常驻进程,请求第三方服务或者资源完毕后,需要手动关闭连接,否则连接会一直存在。而很多时候,开发者不一定记得关闭这个连接。这样是不是很麻烦?于是有了连接池...
postgres://username:password@url.com:5432/dbName DB_DSN = "postgres://postgres:12345678@192.168.8.200:5432/douyin?sslmode=disable" ) type User struct { ID int Email string Password string } func main() { // Create DB pool //db, err := sql.Open("postgres", "host=192.168.8.200 port=...
db, err := sql.Open("postgres",DB_DSN) if err != nil { log.Fatal("Failed to open a DB connection:", err) } defer db.Close() //创建一个用户,预要插入到数据库里 var user User = User{ID:4,Email:"110@qq.com",Password:"1234567890"} ...
}func main() { // Create DB pool //db, err := sql.Open("postgres", "host=192.168.8.200 port=5432 user=postgres password=12345678 dbname=douyin sslmode=disable") db, err := sql.Open("postgres",DB_DSN)if err != nil { log.Fatal("Failed to open a DB connection: ", err) ...
Options{ User: "postgres", }) defer db.Close() _, err := db.Exec(`CREATE TEMP TABLE users (name text, emails text[])`) if err != nil { panic(err) } err = CreateUser(db, &User{"admin", []string{"admin1@admin", "admin2@admin"}}) if err != nil { panic(err) } err...
"postgres",Channel:make(chan*Connection,size),}fori:=1;i<=p.Size;i++{p.Channel<-newConnection(i,p.Driver,p.Dsn)}returnp}func(p*Pool)Exec(queryFunc ExecFunc)interface{}{connection:=<-p.Channelifconnection.Conn==nil{connection.open(p.Driver,p.Dsn)}result:=connection.exec(queryFunc)...
It is important to note that calling “Open” does not open a connection to the database. The return from “Open” is a DB type and an error. The DB type represents a pool of connections which the sql package manages for you. db, err := sql.Open(“postgres”,”user=Arnold dbname=...
dbx := sqlx.NewDb(db,"postgres") exec := echo.New()if!config.Production { exec.Debug() } exec.Use(mw.Logger()) exec.Use(mw.Recover()) exec.Use(mw.Gzip()) exec.Get("/status",func(c *echo.Context)error{returnc.NoContent(http.StatusOK) ...