go

问题 Port 8888 is already bound on my (OS X 10.13.5) system, by a process running inside a docker container: $ netstat -an | grep 8888 tcp6 0 0 ::1.8888 *.* LISTEN tcp4 0 0 *.8888 *.* LISTEN A python program which tries to bind to that port (using as close to the socket options of golang as I can manage), fails in the way I expect: import socket import fcntl import os def main(): sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) flag = fcntl.fcntl(sock.fileno(), fcntl.F_GETFL) fcntl.fcntl

问题 Port 8888 is already bound on my (OS X 10.13.5) system, by a process running inside a docker container: $ netstat -an | grep 8888 tcp6 0 0 ::1.8888 *.* LISTEN tcp4 0 0 *.8888 *.* LISTEN A python program which tries to bind to that port (using as close to the socket options of golang as I can manage), fails in the way I expect: import socket import fcntl import os def main(): sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) flag = fcntl.fcntl(sock.fileno(), fcntl.F_GETFL) fcntl.fcntl

问题 Port 8888 is already bound on my (OS X 10.13.5) system, by a process running inside a docker container: $ netstat -an | grep 8888 tcp6 0 0 ::1.8888 *.* LISTEN tcp4 0 0 *.8888 *.* LISTEN A python program which tries to bind to that port (using as close to the socket options of golang as I can manage), fails in the way I expect: import socket import fcntl import os def main(): sock = socket.socket(socket.AF_INET, socket.SOCK_STREAM) flag = fcntl.fcntl(sock.fileno(), fcntl.F_GETFL) fcntl.fcntl

问题 I'm following a tutorial on building a webpage in go. Everything in the tutorial is easy to grasp, but I'm trying to expand on it. Specifically, I'm trying to add some static files (pictures). I've been going through the go docs and came across FileServer and adding http.ServeFile(w, r, "/home/jeff/web/foo.jpg") in my handler I see an image being served but it's not using the template <h1>{{.Title}}</h1> <p>[<a href="/edit/{{.Title}}">edit</a>]</p> <img src="foo.jpg" alt="moooooo"> <img src=

问题 I'm following a tutorial on building a webpage in go. Everything in the tutorial is easy to grasp, but I'm trying to expand on it. Specifically, I'm trying to add some static files (pictures). I've been going through the go docs and came across FileServer and adding http.ServeFile(w, r, "/home/jeff/web/foo.jpg") in my handler I see an image being served but it's not using the template <h1>{{.Title}}</h1> <p>[<a href="/edit/{{.Title}}">edit</a>]</p> <img src="foo.jpg" alt="moooooo"> <img src=

问题 In Go, when using a SQL database, does one need to close the DB ( db.Close ) before closing an application? Will the DB automatically detect that the connection has died? 回答1: DB will do its best to detect but with no luck, it may not be able to detect. Better to release what is acquired as soon as possible. send() system call will wait for TCP connection to send data but client won't receive anything. Power failure, network issue or bare exit happened without properly releasing resources.

问题 In Go, when using a SQL database, does one need to close the DB ( db.Close ) before closing an application? Will the DB automatically detect that the connection has died? 回答1: DB will do its best to detect but with no luck, it may not be able to detect. Better to release what is acquired as soon as possible. send() system call will wait for TCP connection to send data but client won't receive anything. Power failure, network issue or bare exit happened without properly releasing resources.

问题 I am migrating a Go 1.10 app to Go 1.11. This also includes migrating from dep to mod for managing dependencies. As the application depends on a database, I am using a docker-compose to set up the local development environment. With Go 1.10 I simply mounted the local repository (including the vendor folder) into the correct location in the container's GOPATH : web: image: golang:1.10 working_dir: /go/src/github.com/me/my-project volumes: - .:/go/src/github.com/me/my-project environment: -

问题 I am migrating a Go 1.10 app to Go 1.11. This also includes migrating from dep to mod for managing dependencies. As the application depends on a database, I am using a docker-compose to set up the local development environment. With Go 1.10 I simply mounted the local repository (including the vendor folder) into the correct location in the container's GOPATH : web: image: golang:1.10 working_dir: /go/src/github.com/me/my-project volumes: - .:/go/src/github.com/me/my-project environment: -

问题 first off let me say I'm a beginner (started a few days ago) with golang and am in the process of learning how to practically apply the language. My goal is to build a web Rest API that queries a database and provides data back to the user. I've been able to successfully create a simple API using martini (https://github.com/go-martini/martini) and connect to a MySQL database using https://github.com/go-sql-driver/mysql. My problem at the current moment is how to pass a variable param from the