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laravel \ layui 框架 (后台框架搭建)
w™下載一個妳
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laravel 后台搭建

1.后台登录界面演练代码:

  1. <!DOCTYPE html>
  2. <html lang="en">
  3. <head>
  4. <meta charset="UTF-8">
  5. <meta name="viewport" content="width=device-width, initial-scale=1.0">
  6. <link rel="stylesheet" type="text/css" href="/static/plugins/layui/css/layui.css">
  7. <script type="text/javascript" src="/static/plugins/layui/layui.js"></script>
  8. <title>后台登录</title>
  9. </head>
  10. <body style="background-color: #1E9FFF;">
  11. <div style="position:absolute;left:50%;width:480px;top:50%;margin-left:-240px;
  12. background:#fff;margin-top:-200px;padding:20px;border-radius:4px;box-shadow:5px 5px 20px #444;">
  13. <div class="layui-form">
  14. @csrf
  15. <div class="layui-form-item" style="text-align: center;color:blue;font-weight:500;font-size:26px;">通用后台管理系统</div>
  16. <div class="layui-form-item">
  17. <label class="layui-form-label">用户名</label>
  18. <div class="layui-input-block">
  19. <input type="text" class="layui-input" name="username">
  20. </div>
  21. </div>
  22. <div class="layui-form-item">
  23. <label class="layui-form-label">密码</label>
  24. <div class="layui-input-block">
  25. <input type="password" class="layui-input" name="pwd">
  26. </div>
  27. </div>
  28. <div class="layui-form-item">
  29. <label class="layui-form-label">验证码</label>
  30. <div class="layui-input-inline">
  31. <input type="text" class="layui-input" name="vericode">
  32. </div>
  33. <img id="captcha" src="/admins/account/captcha" style="width: 168px;height:36px;border: 1px solid;color:#cdcdcd; cursor:pointer;" onclick="reload_captcha()">
  34. </div>
  35. <div class="layui-form-item">
  36. <div class="layui-input-block">
  37. <button class="layui-btn" onclick="dologin()">登录</button>
  38. </div>
  39. </div>
  40. </div>
  41. </div>
  42. </body>
  43. </html>
  44. <script type="text/javascript">
  45. layui.use(['layer'],function(){
  46. $ = layui.jquery;
  47. layer = layui.layer;
  48. });
  49. //登录
  50. function dologin(){
  51. var username = $.trim($('input[name="username"]').val());
  52. var pwd = $.trim($('input[name="pwd"]').val())
  53. var vericode = $.trim($('input[name="vericode"]').val());
  54. var _token = $('input[name="_token"]').val();
  55. if(username==''){
  56. return layer.alert('请输入用户名',{icon:2});
  57. }
  58. if(pwd==''){
  59. return layer.alert('请输入密码',{icon:2});
  60. }
  61. if(vericode==''){
  62. return layer.alert('请输入验证码',{icon:2});
  63. }
  64. $.post('/admins/account/dologin',{_token:_token,username:username,pwd:pwd,vericode:vericode},
  65. function(res){
  66. if(res.code>0){
  67. return layer.alert(res.msg,{icon:2});
  68. }
  69. layer.msg(res.msg);
  70. setTimeout(function(){window.location.href='/admins/home/index';},1000);
  71. },'json');
  72. }
  73. function reload_captcha(){
  74. $('#captcha').attr('src','/admins/account/captcha?rand='+Math.random());
  75. }
  76. </script>

2.控制器演练代码:

  1. <?php
  2. namespace App\Http\Controllers\admins;
  3. use App\Http\Controllers\Controller;
  4. use Illuminate\Http\Request;
  5. use Illuminate\Support\Facades\Auth;
  6. //后台账号
  7. class Account extends Controller
  8. {
  9. //后台登录
  10. public function login(){
  11. return view('/admins/account/login');
  12. }
  13. public function dologin(Request $request){
  14. $username = $request->username;
  15. $pwd = $request->pwd;
  16. $VeriCode = $request->vericode;
  17. session_start();
  18. $sess_code = $_SESSION['code'];
  19. if($VeriCode!=$sess_code){
  20. exit(json_encode(array('code'=>1,'msg'=>'验证码错误')));
  21. }
  22. //查询数据库,校验用户名和密码
  23. if($username==''){
  24. exit(json_encode(array('code'=>1,'msg'=>'用户名不能为空')));
  25. }
  26. if($pwd==''){
  27. exit(json_encode(array('code'=>1,'msg'=>'密码不能为空')));
  28. }
  29. $res = Auth::attempt(['username'=>$username,'password'=>$pwd]);
  30. if(!$res){
  31. exit(json_encode(array('code'=>1,'msg'=>'帐号或密码错误')));
  32. }
  33. exit(json_encode(array('code'=>0,'msg'=>'登录成功')));
  34. }
  35. //验证码
  36. public function captcha(){
  37. VeriCode::create();
  38. }
  39. }
  40. /**
  41. * 验证码类
  42. */
  43. class VeriCode{
  44. // 获取验证码配置
  45. private static function _getCodeConfig(){
  46. return [
  47. // 验证码字符集
  48. 'codeStr' => 'ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789',
  49. // 验证码个数
  50. 'codeCount' => 4,
  51. // 字体大小
  52. 'fontsize' =>16,
  53. // 验证码的宽度
  54. 'width' => 100,
  55. // 验证码高度
  56. 'height' => 36,
  57. // 是否有干扰点?true有,false没有
  58. 'disturbPoint' => true,
  59. // 干扰点个数,disturbPoint开启后生效
  60. 'pointCount' => 200,
  61. // 是否有干扰条?true有,false没有
  62. 'disturbLine' => true,
  63. // 干扰条个数,disturbLine开启后生效
  64. 'lineCount' => 3
  65. ];
  66. }
  67. // 创建图片验证码
  68. public static function create(){
  69. // 配置
  70. $config = self::_getCodeConfig();
  71. //创建画布
  72. $image = imagecreatetruecolor($config['width'],$config['height']);
  73. //背景颜色
  74. $bgcolor=imagecolorallocate($image,255,255,255);
  75. imagefill($image,0,0,$bgcolor);
  76. $captch_code = '';//存储验证码
  77. $captchCodeArr = str_split($config['codeStr']);
  78. //随机选取4个候选字符
  79. for($i=0;$i<$config['codeCount'];$i++){
  80. $fontsize = $config['fontsize'];
  81. $fontcolor=imagecolorallocate($image,rand(0,120),rand(0,120),rand(0,120));//随机颜色
  82. $fontcontent = $captchCodeArr[rand(0,strlen($config['codeStr'])-1)];
  83. $captch_code.=$fontcontent;
  84. $_x = $config['width']/$config['codeCount'];
  85. $x=($i*(int)$_x)+rand(5,10); //随机坐标
  86. $y=rand(5,10);
  87. imagestring($image,$fontsize,$x,$y,$fontcontent,$fontcolor); // 水平地画一行字符串
  88. }
  89. session_start();
  90. $_SESSION['code']=$captch_code;
  91. //增加干扰点
  92. if($config['disturbPoint']){
  93. for($i=0;$i<$config['pointCount'];$i++){
  94. $pointcolor=imagecolorallocate($image,rand(50,200),rand(50,200),rand(50,200));
  95. imagesetpixel($image,rand(1,99),rand(1,29),$pointcolor);
  96. }
  97. }
  98. //增加干扰线
  99. if($config['disturbLine']){
  100. for($i=0;$i<$config['lineCount'];$i++){
  101. $linecolor=imagecolorallocate($image,rand(80,280),rand(80,220),rand(80,220));
  102. imageline($image,rand(1,99),rand(1,29),rand(1,99),rand(1,29),$linecolor);
  103. }
  104. }
  105. //输出格式
  106. header('content-type:image/png');
  107. imagepng($image);
  108. //销毁图片
  109. imagedestroy($image);
  110. }
  111. }

4.路由演练代码:

  1. <?php
  2. use Illuminate\Support\Facades\Route;
  3. /*
  4. |--------------------------------------------------------------------------
  5. | Web Routes
  6. |--------------------------------------------------------------------------
  7. |
  8. | Here is where you can register web routes for your application. These
  9. | routes are loaded by the RouteServiceProvider within a group which
  10. | contains the "web" middleware group. Now create something great!
  11. |
  12. */
  13. Route::get('/', function () {
  14. return view('welcome');//视图、视图引擎
  15. });
  16. //后台登录
  17. Route::get('/admins/account/login','admins\Account@login');
  18. Route::post('admins/account/dologin','admins\Account@dologin');
  19. //后台验证码
  20. Route::get('/admins/account/captcha','admins\Account@captcha');
  21. Route::get('/admins/home/index','admins\Home@index');

5.Home 演练代码:

  1. <?php
  2. namespace App\Http\Controllers\admins;
  3. use App\Http\Controllers\Controller;
  4. use Illuminate\Http\Request;
  5. use Illuminate\Support\Facades\Auth;
  6. //后台主页
  7. class Home extends Controller
  8. {
  9. //后台登录
  10. public function index(){
  11. return view('/admins/home/index');
  12. }
  13. }

6.演练效果图:

7.学习总结:

在没有学习过后台框架搭建之前,会认为这是多么神秘且很难的事情,学习过之后发现,虽然知道大致的方法,知道后台是由哪些部分组成的,但是实际操作起来还是不容易,看着老师是轻轻松松的搭建完成,课后看着录播跟着实操演练困难重重,就这一个后台框架搭建,我足足重复练习了5次才通过,途中有出现代码写错,单词写错,步骤写错,等等一系列原因,其中大部分因素是自己不够细心,其二是自己对基础不熟练,另外因为工作导致没有太多时间进行复习演练,之前对于程序是没有任何功底,所以前面的基础也没能跟上,现在三阶段实战也没能及时跟上。

Correcting teacher:GuanhuiGuanhui

Correction status:qualified

Teacher's comments:写的还好!一定勤加练习,尽量按照自己的想法去实现一些功能。
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