golang框架与云原生开发的最佳实践有哪些？（g

package main

import ( zvvq

"context"

copyright zvvq

"database/sql" 本文来自zvvq

"fmt" 内容来自samhan

"log" zvvq.cn

_ "<a style=color:#f60; text-decoration:underline; href="https://www.php.cn/zt/15841.html" target="_blank">git</a>hub.com/go-sql-driver/<a style=color:#f60; text-decoration:underline; href="https://www.php.cn/zt/15713.html" target="_blank">mysql</a>" // MySQL 驱动程序

copyright zvvq

"github.com/gorilla/mux" 内容来自zvvq，别采集哟

)

var db *sql.DB zvvq

func main() {

copyright zvvq

var err error 内容来自zvvq

db, err = sql.Open("mysql", "user:password@tcp(host:port)/database") zvvq

if err != nil { copyright zvvq

log.Fatal(err) copyright zvvq

}

copyright zvvq

ctx := context.Background()

内容来自zvvq

if err := db.PingContext(ctx); err != nil {

zvvq.cn

log.Fatal(err)

zvvq

} copyright zvvq

r := mux.NewRouter() zvvq.cn

r.HandleFunc("/users", getUsers).Methods("GET") zvvq

if err := http.ListenAndServe(":3000", r); err != nil {

copyright zvvq

log.Fatal(err) 内容来自samhan666

}

} 内容来自samhan

func getUsers(w http.ResponseWriter, r *http.Request) {

rows, err := db.QueryContext(r.Context(), "SELECT * FROM users") 内容来自zvvq，别采集哟

if err != nil {

内容来自samhan

http.Error(w, err.Error(), http.StatusInternalServerError) 内容来自zvvq，别采集哟

return 内容来自zvvq，别采集哟

}

本文来自zvvq

defer rows.Close()

var users []User

zvvq.cn

for rows.Next() {

zvvq.cn

var u User

zvvq好，好zvvq

if err := rows.Scan(&u.ID, &u.Name, &u.Email); err != nil { copyright zvvq

http.Error(w, err.Error(), http.StatusInternalServerError) 内容来自samhan

return zvvq.cn

} 内容来自samhan666

users = append(users, u)

本文来自zvvq

} 本文来自zvvq

json.NewEncoder(w).Encode(users)

}