使用到的工具

1,thinkphp5.0自带的验证码: think-captcha

 可查看：  https://www.kancloud.cn/manual/thinkphp5/154295

2,前台页面框架: layui

3,引用到的文件: jquery.min.js   layui.css

登录样式最终图形

登录的html

集团后台登录
用户名密码验证码





   

登录控制器代码

 public function login(){if (Request::instance()->isPost()) { //判断是否是是否为 POST 请求$data = input('post.');
//            {admin_name: "admin", password: "123456", captcha: "m4r"}$username = $data['admin_name'];$password = md5($data['password']);$captcha = $data['captcha'];//调用验证器$validate = Loader::validate('Login');$data = ['username' => $username, 'password' => $password, 'captcha' => $captcha];//验证是否符合验证器里定义(验证码)的规范,不符合返回错误信息if (!$validate->check($data)) {return json($validate->getError());}//查询数据试库$where['admin_name'] = $username;$where['status'] = 1;$userInfo = Db::name('admin')->where($where)->find();if ($userInfo && $userInfo['password'] === $password) {
//                登录成功写入sessionSession::set('admin_id', $userInfo['id']);Session::set('admin_name', $userInfo['admin_name']);return json('jr');} else {return json('用户名或密码错误!');}} else {return $this->fetch('login');}}

验证器

class LoginValidate extends validate
{// 验证规则protected $rule = ['username|用户名' => 'require','password' => 'require','captcha' => 'require|checkCaptcha:null',];protected $message = ['captcha.require' => '验证码错误!',  //验证码空的时候验证的它];protected function checkCaptcha($value)  //验证码输入的进验证的它{$captcha = new Captcha();if ($captcha->check($value)) {return true;} else {return '验证码错误!';}}
}

修改密码

html

原密码密码再次输入保存重置

后台代码

class PasswordController extends BaseController
{public function passwordedit(){$admin_id = Session::get('admin_id');$data = input('post.');$admin = new AdminModel();$admin_info = $admin->where('id', $admin_id)->find();if ($data) {if ((md5($data['password_origin'])) == $admin_info['password']) {if ($data['password'] == $data['password_again']) {$md5_password = md5($data['password']);$result = AdminModel::where('id', $admin_id)->update(['password' => $md5_password]);if ($result) {return $this->success('修改成功啦!');} else {return $this->error('修改失败');}} else {return $this->error('再次输入不一致!');}} else {return $this->error('原密码输入错误!');}}return view();}
}

session失效后从新加载页面

 exit('');

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