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  • laravel之表单篇

    一、Controller介绍

    1) Controller之Request

            laravel中的请求使用的是symfony/http-foundation组件
            请求里面存放了$_GET $_POST $_COOKIE $_FILES $_SERVER等数据
    
            eg1:
                use IlluminateHttpRequest;
                class ExampleController extends Controller {
                    public function request1(Request $request) {
                        #1: 取值
                            echo $request->input('name');                                      //获取参数
                            echo $request->input('sex', '未获取到数据,这是默认值');            //如果没有这个参数,将采用默认值
                            echo $request->has('sex') ? $request->input('sex') : '无参数' ;    //判断是否存在这个参数,存在输出,否则默认值
                            $request->all();                                                   //获取所有的参数
    
                        #2: 判断请求类型
                            var_dump($request->method());                                     //请求类型
                            var_dump($request->isMethod('GET'));                              //是否是get请求
                            var_dump($request->ajax());                                       //是否是ajax请求
                            var_dump($request->is('student/*'));                              //判断访问路劲是否是这个
                            var_dump($request->url());                                        //获取当前的url
                    }
                }
    
            eg2:
                namespace AppHttpControllers;
                use IlluminateHttpRequest;
                class UploadController extends Controller {
                    public function save(Request $request) {
                        echo $request->input('file');
                    }
                }
    
                Route::any('upload/save', 'UploadController@save');
    
                <form action="upload/save" method="post">
                    {{ csrf_field() }}
                    <input type="text" name="file" value="123">
                    <input type="submit" value="提交">
                </form>
    
            eg3:
                namespace AppHttpControllers;
                use IlluminateHttpRequest;
                class RbacController extends BaseController
                {
                    public function roleset(Request $request)
                    {
                        echo json_encode($request->input('rolename'));
                    }
                }
    
                $.ajax({
                    type: 'POST',
                    url: '/roleset',
                    data: { rolename : $('#rolename').val()},
                    dataType: 'json',
                    headers: {
                        'X-CSRF-TOKEN': "{{ csrf_token() }}"
                    },
                    success: function(data){
    
                    }
                });
    
                Route::any('/roleset', 'RbacController@roleset');

    2) Controller之Session

            laravel中session三种使用方式:
            a: HTTP request类的session()方法
            b: session()辅助函数
            c: Session facade

    Controller之Response

    Controller之Middleware

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  • 原文地址:https://www.cnblogs.com/liuxiaowei/p/7163489.html
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