go+bootstrap实现简单的注册登录和管理

概述

使用，go+mysql实现了用户的登录，注册，和管理的简单功能，不同用户根据不同权限显示不同的内容

实战要求：

1、用户可以注册、登录；
2、登录后可以查看所有的注册的用户；
3、管理员操作对用户有删除和编辑权限。（不使用3方的web框架）
4、普通用户登录后可以查看所有用户，不能编辑、删除；

结构：

界面展示

在这里插入图片描述

go相关代码

db.go

package srcimport ("database/sql""fmt"_ "github.com/go-sql-driver/mysql""log"
)var mdb *sql.DBfunc InitDB() {var err errormdb, err = sql.Open("mysql", "root:5201314@tcp(127.0.0.1:3306)/user_management")//数据库连接账号密码if err != nil {log.Println("数据库连接失败", err)return} else {log.Println("数据库连接成功")}
}func SelectPersonal(email string) (id int, isAdmin bool) {log.Println("SelectPersonal")err := mdb.QueryRow("select id,is_admin from users where username = ?", email).Scan(&id, &isAdmin)if err != nil {log.Println("SelectPersona", err)}log.Println("SelectPersonal over")return id, isAdmin
}func SelectAll() *sql.Rows {log.Println("SelectAll")stmt, err := mdb.Prepare("select * from users")if err != nil {log.Println("预处理失败")}rows, err := stmt.Query()if err != nil {log.Println("获取结果失败")}log.Println("SelectAll over")return rows
}func SelectPassword(email string) string {log.Println("SelectPassword")var storedPassword stringerr := mdb.QueryRow("select password from users where username = ?", email).Scan(&storedPassword)if err != nil {log.Println(err)}log.Println("SelectPassword over")return storedPassword
}
func AddUser(email string, password string) bool {log.Println("AddUser")stmt, err := mdb.Prepare("insert into users values (default,?,?,false)")if err != nil {fmt.Println("预处理失败")return false}r, err := stmt.Exec(email, password)if err != nil {fmt.Println("sql执行失败")return false}count, err := r.RowsAffected()if err != nil {fmt.Println("结果获取失败")return false}if count > 0 {log.Println("AddUser over")fmt.Println("新增成功")return true} else {fmt.Println("用户创建失败")return false}
}
func IsExist(email string) bool {var emailExists boolerr := mdb.QueryRow("select exists(select 1 from users where username = ?)", email).Scan(&emailExists)if err != nil {log.Println(err)}return emailExists
}func IsAdminEmail(email string) bool {var emailExists boolerr := mdb.QueryRow("select is_admin from users where username = ?", email).Scan(&emailExists)if err != nil {log.Println(err)}return emailExists
}
func RemoveUser(id int) bool {log.Println("RemoveUser")stmt, err := mdb.Prepare("delete from users where id=?")if err != nil {fmt.Println("预处理失败")return false}r, err := stmt.Exec(id)if err != nil {fmt.Println("sql执行失败")return false}count, err := r.RowsAffected()if err != nil {fmt.Println("结果获取失败")return false}if count > 0 {log.Println("ARemoveUser over")fmt.Println("删除成功")return true} else {fmt.Println("用户删除失败")return false}
}
func IsAdminId(id int) bool {var emailExists boolerr := mdb.QueryRow("select is_admin from users where id = ?", id).Scan(&emailExists)if err != nil {log.Println(err)}return emailExists
}func Manager(id int) bool {log.Println("Manager")stmt, err := mdb.Prepare("update users set is_admin = ? where id=?")if err != nil {fmt.Println("预处理失败")return false}r, err := stmt.Exec(true, id)if err != nil {fmt.Println("sql执行失败")return false}count, err := r.RowsAffected()if err != nil {fmt.Println("结果获取失败")return false}if count > 0 {log.Println("Manager over")fmt.Println("管理员设置成功")return true} else {fmt.Println("管理员设置失败")return false}
}func RemoveManager(id int) bool {log.Println("RemoveManager")if id == 1 {return false}stmt, err := mdb.Prepare("update users set is_admin = ? where id=?")if err != nil {fmt.Println("预处理失败")return false}r, err := stmt.Exec(false, id)if err != nil {fmt.Println("sql执行失败")return false}count, err := r.RowsAffected()if err != nil {fmt.Println("结果获取失败")return false}if count > 0 {log.Println("RemoveManager over")fmt.Println("管理员移除成功")return true} else {fmt.Println("用户删除失败")return false}
}
func ChangePassword(email string, newPassword string) bool {log.Println("ChangePassword")stmt, err := mdb.Prepare("update users set password = ? where username=?")if err != nil {fmt.Println("预处理失败")return false}r, err := stmt.Exec(newPassword, email)if err != nil {fmt.Println("sql执行失败")return false}count, err := r.RowsAffected()if err != nil {fmt.Println("结果获取失败")return false}if count > 0 {log.Println("ChangePassword over")fmt.Println("密码修改成功")return true} else {fmt.Println("密码修改失败")return false}
}

main代码

package mainimport ("github.com/gorilla/mux""log""net/http""webTest2.0/src"
)func main() {src.InitDB()r := mux.NewRouter()r.HandleFunc("/login", src.Login).Methods("GET")r.HandleFunc("/login/{url}", src.LoginHandler).Methods("POST")r.HandleFunc("/index/{url}", src.IndexHandler).Methods("POST", "DELETE")r.HandleFunc("/", src.Index).Methods("GET")r.PathPrefix("/bootstrap5/").Handler(http.StripPrefix("/bootstrap5/", http.FileServer(http.Dir("bootstrap5"))))log.Println("Starting server on :8090")if err := http.ListenAndServe(":8090", r); err != nil {log.Fatalf("Could not start server: %v", err)}
}

index.go

package srcimport ("encoding/json""github.com/gorilla/mux""html/template""log""net/http""strconv"
)type User struct {ID      intName    stringIsAdmin bool
}
type Personal struct {ID      intName    stringIsAdmin bool
}
type UserId struct {UserID string `json:"userId"`
}
type Password struct {OldPassword stringNewPassword string
}
type MyErr struct{}func (e *MyErr) Error() string {return "logout"
}func Index(w http.ResponseWriter, r *http.Request) {log.Println("index")personal, err := CookieMessage(r)if err != nil {http.Redirect(w, r, "/login", http.StatusSeeOther)return}rows := SelectAll()users := make([]User, 0)for rows.Next() {name := ""id := 0var ignored interface{}isAdmin := falserows.Scan(&id, &name, &ignored, &isAdmin)users = append(users, User{id, name, isAdmin})}tmpl, err := template.ParseFiles("view/index.html")if err != nil {log.Println("login.html打开失败:", err)http.Error(w, "Internal Server Error", http.StatusInternalServerError)return}err = tmpl.Execute(w, map[string]interface{}{"Users":    users,"Personal": personal,})if err != nil {log.Println("模板执行失败:", err)http.Error(w, "Internal Server Error", http.StatusInternalServerError)}
}
func IndexHandler(w http.ResponseWriter, r *http.Request) {log.Println("IndexHandler")vars := mux.Vars(r)log.Println(vars)switch vars["url"] {case "delete":deleteUser(w, r)case "updateAdmin":addAdmin(w, r)case "removeAdmin":removeAdmin(w, r)case "changePassword":changePassword(w, r)case "logout":logout(w)}
}
func CookieMessage(r *http.Request) (Personal, error) {c, err := r.Cookie("email")if err != nil {// 如果获取 Cookie 失败，返回错误return Personal{}, err}if c.Value == "logout" {return Personal{}, &MyErr{}}id, isAdmin := SelectPersonal(c.Value)log.Println(id, isAdmin)personal := Personal{id,c.Value,isAdmin,}return personal, nil
}func changePassword(w http.ResponseWriter, r *http.Request) {log.Println("changePassword")response := make(map[string]string)c, err := r.Cookie("email")if err != nil {response["success"] = "false"response["message"] = "cookie获取失败"w.Header().Set("Content-Type", "application/json")json.NewEncoder(w).Encode(response)return}var password Passworderr = json.NewDecoder(r.Body).Decode(&password)if err != nil {response["success"] = "false"response["message"] = "客户端信息解析错误"w.Header().Set("Content-Type", "application/json")json.NewEncoder(w).Encode(response)http.Error(w, "Invalid request payload", http.StatusBadRequest)return}log.Println(password.NewPassword, password.OldPassword)if password.NewPassword == SelectPassword(c.Value) {response["success"] = "false"response["message"] = "新秘密与旧密码相同"w.Header().Set("Content-Type", "application/json")json.NewEncoder(w).Encode(response)return}if password.OldPassword == SelectPassword(c.Value) {if ChangePassword(c.Value, password.NewPassword) {response["success"] = "true"response["message"] = "密码修改成功"w.Header().Set("Content-Type", "application/json")json.NewEncoder(w).Encode(response)return} else {response["success"] = "false"response["message"] = "密码修改失败"w.Header().Set("Content-Type", "application/json")json.NewEncoder(w).Encode(response)return}} else {response["success"] = "false"response["message"] = "旧密码错误"w.Header().Set("Content-Type", "application/json")json.NewEncoder(w).Encode(response)}}
func deleteUser(w http.ResponseWriter, r *http.Request) {log.Println("deleteUser")response := make(map[string]string)c, err := r.Cookie("email")if err != nil {response["success"] = "false"response["message"] = "cookie获取失败"w.Header().Set("Content-Type", "application/json")json.NewEncoder(w).Encode(response)return}var Id UserIderr = json.NewDecoder(r.Body).Decode(&Id)if err != nil {http.Error(w, "Invalid request payload", http.StatusBadRequest)return}deleteId, err := strconv.Atoi(Id.UserID)king := IsAdminId(deleteId)id, isAdmin := SelectPersonal(c.Value)if isAdmin {if id == 1 {RemoveUser(deleteId)response["success"] = "true"response["message"] = "删除成功"} else if !king {RemoveUser(deleteId)response["success"] = "true"response["message"] = "删除成功"}w.Header().Set("Content-Type", "application/json")json.NewEncoder(w).Encode(response)}log.Println("deleteUser over")
}
func addAdmin(w http.ResponseWriter, r *http.Request) {log.Println("addAdmin")response := make(map[string]string)c, err := r.Cookie("email")if err != nil {response["success"] = "false"response["message"] = "cookie获取失败"w.Header().Set("Content-Type", "application/json")json.NewEncoder(w).Encode(response)return}id, _ := SelectPersonal(c.Value)log.Println(id)if id != 1 {response["success"] = "false"response["message"] = "用户权限不足"w.Header().Set("Content-Type", "application/json")json.NewEncoder(w).Encode(response)return}var Id UserIderr = json.NewDecoder(r.Body).Decode(&Id)log.Println(Id.UserID)if err != nil {log.Println(err)http.Error(w, "Invalid request payload", http.StatusBadRequest)return}updateId, err := strconv.Atoi(Id.UserID)Manager(updateId)response["success"] = "true"response["message"] = "管理员设置成功"w.Header().Set("Content-Type", "application/json")json.NewEncoder(w).Encode(response)log.Println("addAdmin over")
}func removeAdmin(w http.ResponseWriter, r *http.Request) {response := make(map[string]string)c, err := r.Cookie("email")if err != nil {response["success"] = "false"response["message"] = "cookie获取失败"w.Header().Set("Content-Type", "application/json")json.NewEncoder(w).Encode(response)return}id, _ := SelectPersonal(c.Value)if id != 1 {response["success"] = "false"response["message"] = "用户权限不足"w.Header().Set("Content-Type", "application/json")json.NewEncoder(w).Encode(response)return}var Id UserIderr = json.NewDecoder(r.Body).Decode(&Id)log.Println(Id.UserID)if err != nil {log.Println(err)http.Error(w, "Invalid request payload", http.StatusBadRequest)return}deleteId, err := strconv.Atoi(Id.UserID)RemoveManager(deleteId)response["success"] = "true"response["message"] = "管理员移除成功"w.Header().Set("Content-Type", "application/json")json.NewEncoder(w).Encode(response)
}func logout(w http.ResponseWriter) {log.Println("loginOut")http.SetCookie(w, &http.Cookie{Name:     "email",Value:    "logout",MaxAge:   5,Path:     "/",HttpOnly: true,SameSite: http.SameSiteLaxMode,})json.NewEncoder(w).Encode(map[string]interface{}{"success": true})log.Println("loginOut over")
}

login.go

package srcimport ("encoding/json""fmt""github.com/gorilla/mux""html/template""log""net/http"
)type LoginRequest struct {Email    string `json:"email"`Password string `json:"password"`
}func Login(w http.ResponseWriter, r *http.Request) {_, err := CookieMessage(r)if err == nil {http.Redirect(w, r, "/", http.StatusSeeOther)return}log.Println("Login")tmpl, err := template.ParseFiles("view/login.html")if err != nil {log.Println("login.html打开失败:", err)http.Error(w, "Internal Server Error", http.StatusInternalServerError)return}err = tmpl.Execute(w, nil)if err != nil {log.Println("模板执行失败:", err)http.Error(w, "Internal Server Error", http.StatusInternalServerError)}
}
func LoginHandler(w http.ResponseWriter, r *http.Request) {log.Println("LoginHandler")vars := mux.Vars(r)fmt.Println(vars)log.Println("loginHandler")switch vars["url"] {case "login":var req LoginRequesterr := json.NewDecoder(r.Body).Decode(&req)if err != nil {http.Error(w, "Invalid request payload", http.StatusBadRequest)return}log.Printf("Received login request: Email: %s  password: %s\n", req.Email, req.Password)emailExists := IsExist(req.Email)if !emailExists {response := map[string]string{"success": "false", "message": "用户不存在"}w.Header().Set("Content-Type", "application/json")json.NewEncoder(w).Encode(response)return}storedPassword := SelectPassword(req.Email)log.Println(storedPassword)if storedPassword != req.Password {response := map[string]string{"success": "false", "message": "密码错误"}w.Header().Set("Content-Type", "application/json")json.NewEncoder(w).Encode(response)return}c := http.Cookie{Name:     "email",Value:    req.Email,Path:     "/",HttpOnly: true,Secure:   true,MaxAge:   3600,}http.SetCookie(w, &c)response := map[string]string{"success": "true", "message": ""}w.Header().Set("Content-Type", "application/json")json.NewEncoder(w).Encode(response)case "register":var req LoginRequesterr := json.NewDecoder(r.Body).Decode(&req)if err != nil {http.Error(w, "Invalid request payload", http.StatusBadRequest)return}log.Printf("Received login request: Email: %s  password: %s\n", req.Email, req.Password)emailExists := IsExist(req.Email)if !emailExists {king := AddUser(req.Email, req.Password)response := make(map[string]string)if king {response["success"] = "true"response["message"] = "注册成功"} else {response["success"] = "false"response["message"] = "注册失败"}w.Header().Set("Content-Type", "application/json")json.NewEncoder(w).Encode(response)return} else {response := map[string]string{"success": "false", "message": "用户已存在"}w.Header().Set("Content-Type", "application/json")json.NewEncoder(w).Encode(response)return}default:http.Error(w, "Method Not Allowed", http.StatusMethodNotAllowed)}
}

html相关代码

index.html

<!DOCTYPE html>
<html lang="en">
<head><meta charset="UTF-8"><title>用户管理系统</title><link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha1/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-GLhlTQ8iRABdZLl6O3oVMWSktQOp6b7In1Zl3/Jr59b6EGGoI1aFkw7cmDA6j6gD" crossorigin="anonymous"><script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha1/dist/js/bootstrap.bundle.min.js" integrity="sha384-/mhDoLbDldZc3qpsJHpLogda//BVZbgYuw6kof4u2FrCedxOtgRZDTHgHUhOCVim" crossorigin="anonymous"></script><style>.content-block {display: none;}.content-block:first-of-type {display: block;}</style>
</head>
<body>
<div class="container p-4"><div class="row"><div class="text-xxl-center list-group"><h1>用户管理系统</h1></div></div>
</div>
<div class="container"><div class="row"><div class="col-3"><div id="list-example" class="list-group"><a class="list-group-item list-group-item-action-active text-xxl-center list-group-item-primary" href="#list-item-1">个人</a><a class="list-group-item list-group-item-action text-xxl-center list-group-item-primary" href="#list-item-2">其他</a><a class="list-group-item list-group-item-action text-xxl-center list-group-item-primary" href="#list-item-3">设置</a></div></div><div class="col-9"><div data-bs-spy="scroll" data-bs-target="#list-example" data-bs-smooth-scroll="true" class="scrollspy-example" tabindex="0"><div id="list-item-1" class="content-block"><table class="table"><thead><tr><th scope="col">用户ID:</th><th scope="col">{{.Personal.ID}}</th></tr></thead><tbody><tr><th scope="row">用户昵称:</th><td>{{.Personal.Name}}</td></tr><tr><th scope="row">用户身份:</th>{{if and .Personal.IsAdmin (eq .Personal.ID 1)}}<td>超级管理员</td>{{else if .Personal.IsAdmin}}<td>管理员</td>{{else}}<td>普通成员</td>{{end}}</tr></tbody></table></div><div id="list-item-2" class="content-block"><table class="table"><thead><tr><th scope="col">ID</th><th scope="col">用户</th><th scope="col">身份</th>{{if and .Personal.IsAdmin (eq .Personal.ID 1)}}<th scope="col">管理</th>{{end}}{{if .Personal.IsAdmin}}<th scope="col">删除</th>{{end}}</tr></thead><tbody>{{range .Users}}<tr><th scope="row">{{.ID}}</th><td>{{.Name}}</td>{{if and .IsAdmin (eq .ID 1)}}<td>超级管理员</td>{{else if .IsAdmin}}<td>管理员</td>{{else}}<td>普通用户</td>{{end}}{{if eq $.Personal.ID 1}}{{if eq .ID 1}}{{else if .IsAdmin}}<td><button type="button" class="btn btn-primary remove-user-btn" data-id="{{.ID}}">移除管理员</button></td><td><button type="button" class="btn btn-danger delete-user-btn" data-id="{{.ID}}">删除</button></td>{{else}}<td><button type="button" class="btn btn-primary manage-user-btn" data-id="{{.ID}}">设置管理员</button></td><td><button type="button" class="btn btn-danger delete-user-btn" data-id="{{.ID}}">删除</button></td>{{end}}{{else if $.Personal.IsAdmin}}{{if not .IsAdmin}}<td><button type="button" class="btn btn-danger delete-user-btn" data-id="{{.ID}}">删除</button></td>{{end}}{{end}}</tr>{{end}}</tbody></table></div><div id="list-item-3" class="content-block"><div class="container"><div class="row"><div class="text-xxl-center col-6"><button type="button" class="btn btn-primary" id="change-password-btn">修改密码</button></div><div class="col-6"><button type="button" class="btn btn-primary" id="logout-btn">退出登录</button></div></div></div></div></div></div></div>
</div><div class="modal fade" id="changePasswordModal" tabindex="-1" aria-labelledby="changePasswordModalLabel" aria-hidden="true"><div class="modal-dialog"><div class="modal-content"><div class="modal-header"><h5 class="modal-title" id="changePasswordModalLabel">修改密码</h5><button type="button" class="btn-close" data-bs-dismiss="modal" aria-label="Close"></button></div><div class="modal-body"><form id="change-password-form"><div class="mb-3"><label for="old-password" class="form-label">旧密码</label><input type="password" class="form-control" id="old-password" required></div><div class="mb-3"><label for="new-password" class="form-label">新密码</label><input type="password" class="form-control" id="new-password" required></div><div class="mb-3"><label for="confirm-password" class="form-label">确认新密码</label><input type="password" class="form-control" id="confirm-password" required></div></form></div><div class="modal-footer"><button type="button" class="btn btn-secondary" data-bs-dismiss="modal">取消</button><button type="button" class="btn btn-primary" id="submit-change-password">确定</button></div></div></div>
</div>
<script>document.querySelectorAll('#list-example a').forEach(anchor => {anchor.addEventListener('click', function (e) {e.preventDefault();const targetId = this.getAttribute('href');document.querySelectorAll('.content-block').forEach(block => {block.style.display = 'none';});document.querySelector(targetId).style.display = 'block';});});// 管理用户document.querySelectorAll('.manage-user-btn').forEach(button => {button.addEventListener('click', function() {const userId = this.getAttribute('data-id');if (confirm('确定要设置当前用户为管理员吗？')) {fetch(`/index/updateAdmin`, {method: 'POST',headers: {'Content-Type': 'application/json'},body: JSON.stringify({ "userId":userId })}).then(response => response.json()).then(data => {if (data.success === "true") {alert('用户已成功设置成管理员！');location.reload();} else {alert('设置管理员失败：' + data.message);}});}});});document.querySelectorAll('.remove-user-btn').forEach(button => {button.addEventListener('click', function() {const userId = this.getAttribute('data-id');if (confirm('确定要取消当前用户管理员身份吗？')) {fetch(`/index/removeAdmin`, {method: 'POST',headers: {'Content-Type': 'application/json'},body: JSON.stringify({ "userId":userId })}).then(response => response.json()).then(data => {if (data.success === "true") {alert('已成功取消当前用户管理员身份！');location.reload();} else {alert('取消当前用户管理员身份失败：' + data.message);}});}});});// 删除用户document.querySelectorAll('.delete-user-btn').forEach(button => {button.addEventListener('click', function() {const userId = this.getAttribute('data-id');if (confirm('确定要删除该用户吗？')) {fetch(`/index/delete`, {method: 'DELETE',headers: {'Content-Type': 'application/json'},body: JSON.stringify({ "userId":userId }),}).then(response => response.json()).then(data => {if (data.success === "true") {alert('用户已成功删除！');location.reload();} else {alert('删除用户失败：' + data.message);}});}});});document.getElementById('logout-btn').addEventListener('click', function() {fetch('/index/logout', {method: 'POST',headers: {'Content-Type': 'application/json'},credentials: 'include'}).then(response => response.json()).then(data => {if (data.success) {alert('注销成功');window.location.href="/";} else {alert('注销失败：' + data.message);}});});document.addEventListener('DOMContentLoaded', function() {const changePasswordModal = new bootstrap.Modal(document.getElementById('changePasswordModal'));document.getElementById('change-password-btn').addEventListener('click', function () {changePasswordModal.show();});document.getElementById('submit-change-password').addEventListener('click', function () {const oldPassword = document.getElementById('old-password').value;const newPassword = document.getElementById('new-password').value;const confirmPassword = document.getElementById('confirm-password').value;if (newPassword !== confirmPassword) {alert('新密码和确认密码不一致！');return;}fetch('/index/changePassword', {method: 'POST',headers: {'Content-Type': 'application/json'},body: JSON.stringify({"oldPassword": oldPassword,"newPassword": newPassword})}).then(response => response.json()).then(data => {if (data.success === "true") {alert('密码已成功更改！');changePasswordModal.hide();} else {if (data.message === "新秘密与旧密码相同"){alert('新秘密与旧密码相同');}alert('更改密码失败：' + data.message);}});});});</script></body>
</html>

login.html

<!DOCTYPE html>
<html lang="en">
<head><meta charset="UTF-8"><title>登录</title><link href="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha1/dist/css/bootstrap.min.css" rel="stylesheet" integrity="sha384-GLhlTQ8iRABdZLl6O3oVMWSktQOp6b7In1Zl3/Jr59b6EGGoI1aFkw7cmDA6j6gD" crossorigin="anonymous"><script src="https://cdn.jsdelivr.net/npm/bootstrap@5.3.0-alpha1/dist/js/bootstrap.bundle.min.js" integrity="sha384-/mhDoLbDldZc3qpsJHpLogda//BVZbgYuw6kof4u2FrCedxOtgRZDTHgHUhOCVim" crossorigin="anonymous"></script>
</head>
<body>
<div class="container"><form id="loginForm" onsubmit="return handleSubmit(event, 'login')"><div class="col-4 mx-auto"><div class="col-md-4 mx-auto p-6"><h2>登录/注册</h2></div></div><div class="col-4 mx-auto"><label for="exampleInputEmail1" class="form-label">邮箱地址</label><input type="email" class="form-control" id="exampleInputEmail1" aria-describedby="emailHelp"></div><div class="col-4 mx-auto"><label for="exampleInputPassword1" class="form-label">密码</label><input type="password" class="form-control" id="exampleInputPassword1"></div><div class="col-4 mx-auto"><button type="submit" class="col-12 btn-outline-primary p-2">登录</button></div><div class="col-4 mx-auto"><button type="button" class="col-12 btn-outline-primary p-2" onclick="handleSubmit(event, 'register')">注册</button></div></form>
</div><script>function handleSubmit(event, action) {event.preventDefault();const email = document.getElementById('exampleInputEmail1').value;const password = document.getElementById('exampleInputPassword1').value;const url = action === 'login' ? '/login/login' : '/login/register';fetch(url, {method: 'POST',headers: {'Content-Type': 'application/json',},body: JSON.stringify({ email, password }),}).then(response => response.json()).then(data => {if (data.success === "true") {if (action === 'login') {alert('登录成功！');window.location.href = '/';} else if (action === 'register') {alert('注册成功，请登录！');}} else {if (data.message === "用户不存在") {alert('用户不存在，请先注册');} else if (data.message === "密码错误") {alert('密码错误，请重新输入');} else if (data.message === "用户已存在") {alert('用户已存在，请直接登录');} else {alert('请求失败，请稍后再试');}}}).catch((error) => {console.error('Error:', error);alert('请求错误，请稍后再试');});}
</script></body>
</html>