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Category: Go 1.13

查看终端输出，报错：runtime error: invalid memory address or nil pointer dereference。 0

Firebase / Go / Go 1.13 / Google URL Shortener / Programming Language / Short URL Service / Website Building System

Runtime Error: Invalid memory address or nil pointer dereference when using the URL shortener API

浏览量： 9 1. Reference URL: https://github.com/unknwon/the-way-to-go_zh_en/blob/master/ebook/09.11.md . Test by browsing the page of http://localhost:8080/. Enter: http://www.destandaard.be in shorten this, and click: Give me the short URL. Loading until timeout. as shown in Figure 1...

在 PowerShell 中输入：netstat -ano，查看所有的端口占用情况，看到程序中的端口(4000)已经在另一个程序中处于活动状态(正在使用中) 0

Go / Go 1.13 / Operating System / Programming Language / Windows / Windows 10 / Windows 10 Home Chinese Edition

In the Go Guide, Web server, error report: Listen TCP 127.0.0.1:4000: BIND: only one usage of each socket address (Protocol/Network Address/Port) Is Normally Permitted Analysis Solution

浏览量： 7 1. Refer to the Go guide, web server, write file: web-servers.go 2. Run in PowerShell: go run web-servers.go, report error: listen tcp 127.0.0.1:4000: bind: only one usage of each Socket address (protocol/network...