go语言的简单注册登陆

实现逻辑很简单
先注册路由，前端调用路由方法，将数据传递给go程序，后端接受到数据后，或执行登陆或执行注册，并返回相应结果
涉及到 路由，mysql
main.go文件代码：
package main

import (

"crypto/md5"

"database/sql"

"encoding/json"

"fmt"

_ "go-sql-driver/mysql"

"io"

"net/http"

)

func main() {

mux := http.NewServeMux()

mux.HandleFunc("/login", login)

mux.HandleFunc("/register", register)

http.ListenAndServe(":8080", mux) //监听8080端口

}

type result struct { //定义返回数据格式

Code int

Msg  string

Data []string

}

func login(w http.ResponseWriter, r *http.Request) { //登陆

w.Header().Set("Access-Control-Allow-Origin", "*") //允许跨域

r.ParseForm()

username, found1 := r.Form["username"]

password, found2 := r.Form["password"]

if !(found1 && found2) {

io.WriteString(w, "请勿非法访问")

return

}

db, err := sql.Open("mysql", "root@tcp(127.0.0.1:3306)/test?charset=utf8") //登陆msyql

if err != nil {

fmt.Println(err)

}

defer db.Close()

var post_data PostData

post_data.user_name = username[0]

post_data.pass_word = password[0]

var filter_data FilterData = post_data

post_data = filter_data.formatData()

var row *sql.Row

row = db.QueryRow("select * from users where username = ? and password = ?", post_data.user_name, post_data.pass_word)

var user_name, pass_word string

var id int

err = row.Scan(&id, &user_name, &pass_word) //遍历结果

if err != nil {

arr := &result{

500,

"登陆失败",

[]string{},

}

b, json_err := json.Marshal(arr) //json化结果集

if json_err != nil {

fmt.Println("encoding faild")

} else {

io.WriteString(w, string(b)) //返回结果

}

} else {

arr := &result{

200,

"登陆成功",

[]string{},

}

b, json_err := json.Marshal(arr) //json化结果集

if json_err != nil {

fmt.Println("encoding faild")

} else {

io.WriteString(w, string(b)) //返回结果

}

}

}

func register(w http.ResponseWriter, r *http.Request) { //注册

w.Header().Set("Access-Control-Allow-Origin", "*") //允许跨域

r.ParseForm()

username, found1 := r.Form["username"]

password, found2 := r.Form["password"]

if !(found1 && found2) {

io.WriteString(w, "请勿非法访问")

return

}

db, err := sql.Open("mysql", "root@tcp(127.0.0.1:3306)/test?charset=utf8")

if err != nil {

io.WriteString(w, "连接数据库失败")

return

}

defer db.Close() //在返回前关闭资源（延迟）

var post_data PostData

post_data.user_name = username[0]

post_data.pass_word = password[0]

var filter_data FilterData = post_data

post_data = filter_data.formatData()

_, err = db.Exec("insert into users(username, password) values(?,?)", post_data.user_name, post_data.pass_word) //插入数据

if err != nil {

arr := &result{

500,

"注册失败",

[]string{},

}

b, json_err := json.Marshal(arr) //json化结果集

if json_err != nil {

fmt.Println("encoding faild")

} else {

io.WriteString(w, string(b)) //返回结果

}

} else {

arr := &result{

200,

"注册成功",

[]string{},

}

b, json_err := json.Marshal(arr) //json化结果集

if json_err != nil {

fmt.Println("encoding faild")

} else {

io.WriteString(w, string(b)) //返回结果

}

}

}

type FilterData interface { //定义数据接口

formatData() PostData

}

type PostData struct { //定义传递数据结构体

user_name string

pass_word string

}

func (post_data PostData) formatData() PostData { //格式化数据

post_data.pass_word = mdFormat(post_data.pass_word)

return post_data

}

func mdFormat(data string) string { //对字符串进行md5加密

t := md5.New()

io.WriteString(t, data)

return fmt.Sprintf("%x", t.Sum(nil))

}

有些代码部分重复了，暂时懒得弄了（其实是不知道怎么抽象出来好）



目录结果如上
运行的时候先 go run main.go
然后把html目录下的login.html拖进浏览器



酱紫
GitHub项目路径  https://github.com/donghuabubai/simpleLogin-go- PS：记得先配置好本地mysql
PS：如果对你有那么一点用处，记得点个星哈