ThinkPHP6 请求

要使用请求对象必须使用门面方式（ think\facade\Request类负责 ）调用
可以通过Request对象完成全局输入变量的检测、获取和安全过滤
支持$_GET、$_POST、$_REQUEST、$_SERVER、$_SESSION、$_COOKIE、$_ENV等系统变量，以及文件上传信息

一、变量获取

方法	说明
param	获取当前请求的变量
get	获取 $_GET 变量
post	获取 $_POST 变量
put	获取 PUT 变量
delete	获取 DELETE 变量
session	获取 SESSION 变量
cookie	获取 $_COOKIE 变量
request	获取 $_REQUEST 变量
server	获取 $_SERVER 变量
env	获取 $_ENV 变量
route	获取路由（包括PATHINFO）变量
middleware	获取中间件赋值/传递的变量
file	获取 $_FILES 变量

1、GET 请求

PARAM类型变量是框架提供的用于自动识别当前请求的一种变量获取方式，是系统推荐的获取请求参数的方法
param方法会把当前请求类型的参数和路由变量以及GET请求合并，并且路由变量是优先的

controller代码

public function edit(){
    print_r( $_GET );    // 原生get接收
    print_r( Request::param() ); // 获取当前请求的所有变量
    print_r( Request::param('id') );    // 获取当前请求的id变量
    print_r( Request::get() );
}

view代码：index.html

<button class="layui-btn layui-btn-xs" onclick="edit({$right_v.id})">编辑</button>

<script type="text/javascript">
    function edit(id){
        layer.open({
            type: 2,
            title: '添加',
            shade: 0.3,
            area: ['480px', '440px'],
            content: '/index.php/index/edit?id='+id
        });
    }
</script>

2、POST 请求

controller代码

public function edit(){
    $id = Request::param('id');
    $shop = Db::table('shop_goods')->where('id',$id)->find();
    $cat = Db::table('shop_cat')->where('status',1)->select();
    View::assign([
        'shop' => $shop,
        'cat' => $cat
    ]);
    return View::fetch();
}
public function edits(){
    // print_r( Request::param() );
    // print_r( Request::post() );

    $all = Request::param();
    $update = Db::table('shop_goods')->where('id',$all['id'])->update($all);
    if($update){
        echo json_encode(['code'=>0,'msg'=>'修改成功']);
    }else{
        echo json_encode(['code'=>1,'msg'=>'修改失败']);
    }
}

view代码：edit.html

<!DOCTYPE html>
<html>
<head>
    <title></title>
    <link rel="stylesheet" type="text/css" href="/static/layui/css/layui.css">
    <script type="text/javascript" src="/static/layui/layui.js"></script>
</head>
<body style="padding:10px;">
    <form class="layui-form">
        <input type="hidden" name="id" value="{$shop.id}">
        <div class="layui-form-item">
            <label class="layui-form-label">标题</label>
            <div class="layui-input-inline">
                <input type="text" class="layui-input" name="title" value="{$shop.title}">
            </div>
        </div>
        <div class="layui-form-item">
            <label class="layui-form-label">分类</label>
            <div class="layui-input-inline">
                <select name="cat">
                    <option value=0 {if $shop['cat']==0} selected {/if}></option>
                    {volist name="cat" id="cat_v"}
                        <option value="{$cat_v['id']}" {if $shop['cat']==$cat_v['id']} selected {/if}>{$cat_v['name']}</option>
                    {/volist}
                </select>
            </div>
        </div>
        <div class="layui-form-item">
            <label class="layui-form-label">原价</label>
            <div class="layui-input-inline">
                <input type="text" class="layui-input" name="price" value="{$shop.price}">
            </div>
        </div>
        <div class="layui-form-item">
            <label class="layui-form-label">折扣</label>
            <div class="layui-input-inline">
                <input type="text" class="layui-input" name="discount" value="{$shop.discount}">
            </div>
        </div>
        <div class="layui-form-item">
            <label class="layui-form-label">库存</label>
            <div class="layui-input-inline">
                <input type="text" class="layui-input" name="stock" value="{$shop.stock}">
            </div>
        </div>
        <div class="layui-form-item">
            <label class="layui-form-label">状态</label>
            <div class="layui-input-inline">
                <select name="status">
                    <option value="1" {if $shop['status']==1} selected {/if}>开启</option>
                    <option value="0" {if $shop['status']==0} selected {/if}>关闭</option>
                </select>
            </div>
        </div>
    </form>
    <div class="layui-form-item">
        <div class="layui-input-block">
            <button class="layui-btn" onclick="save()">保存</button>
        </div>
    </div>
    <script type="text/javascript">
        layui.use(['layer','form'],function(){
            form = layui.form;
            layer = layui.layer;
            $ = layui.jquery;
        });
        function save(){
            $.post('/index.php/Index/edits',$('form').serialize(),function(res){
                if(res.code>0){
                    layer.alert(res.msg,{icon:2});
                }else{
                    layer.msg(res.msg);
                    setTimeout(function(){parent.window.location.reload();},1000);
                }
            },'json');
        }
    </script>
</body>
</html>

二、请求类型

方法	说明
method	获取当前请求类型
has	判断传值是否存在
isGet	判断是否GET请求
isPost	判断是否POST请求
isPut	判断是否PUT请求
isDelete	判断是否DELETE请求
isAjax	判断是否AJAX请求
isPjax	判断是否PJAX请求
isJson	判断是否JSON请求
isMobile	判断是否手机访问
isHead	判断是否HEAD请求
isPatch	判断是否PATCH请求
isOptions	判断是否OPTIONS请求
isCli	判断是否为CLI执行
isCgi	判断是否为CGI模式

1、method

public function edit(){
    if(Request::method() == 'POST'){
        // print_r(Request::method());exit;
        $all = Request::param();
        $update = Db::table('shop_goods')->where('id',$all['id'])->update($all);
        if($update){
            echo json_encode(['code'=>0,'msg'=>'修改成功']);
        }else{
            echo json_encode(['code'=>1,'msg'=>'修改失败']);
        }
    }else{
        // print_r(Request::method());exit;
        $id = Request::param('id');
        $shop = Db::table('shop_goods')->where('id',$id)->find();
        $cat = Db::table('shop_cat')->where('status',1)->select();
        View::assign([
            'shop' => $shop,
            'cat' => $cat
        ]);
        return View::fetch();
    }
}

三、增加数据

controller代码

public function add(){
    if(Request::method() == 'POST'){
        $all = Request::param();
        $insert = Db::table('shop_goods')->insert($all);
        if($insert){
            echo json_encode(['code'=>0,'msg'=>'添加成功']);
        }else{
            echo json_encode(['code'=>1,'msg'=>'添加失败']);
        }
    }else{
        $cat = Db::table('shop_cat')->where('status',1)->select();
        View::assign([
            'cat' => $cat
        ]);
        return View::fetch();
    }
}

view代码：edit.html

<!DOCTYPE html>
<html>
<head>
    <title></title>
    <link rel="stylesheet" type="text/css" href="/static/layui/css/layui.css">
    <script type="text/javascript" src="/static/layui/layui.js"></script>
</head>
<body style="padding:10px;">
    <form class="layui-form">
        <div class="layui-form-item">
            <label class="layui-form-label">标题</label>
            <div class="layui-input-inline">
                <input type="text" class="layui-input" name="title" value="">
            </div>
        </div>
        <div class="layui-form-item">
            <label class="layui-form-label">分类</label>
            <div class="layui-input-inline">
                <select name="cat">
                    <option value=0 selected></option>
                    {volist name="cat" id="cat_v"}
                        <option value="{$cat_v['id']}">{$cat_v['name']}</option>
                    {/volist}
                </select>
            </div>
        </div>
        <div class="layui-form-item">
            <label class="layui-form-label">原价</label>
            <div class="layui-input-inline">
                <input type="text" class="layui-input" name="price" value="">
            </div>
        </div>
        <div class="layui-form-item">
            <label class="layui-form-label">折扣</label>
            <div class="layui-input-inline">
                <input type="text" class="layui-input" name="discount" value="">
            </div>
        </div>
        <div class="layui-form-item">
            <label class="layui-form-label">库存</label>
            <div class="layui-input-inline">
                <input type="text" class="layui-input" name="stock" value="">
            </div>
        </div>
        <div class="layui-form-item">
            <label class="layui-form-label">状态</label>
            <div class="layui-input-inline">
                <select name="status">
                    <option value="1" selected>开启</option>
                    <option value="0">关闭</option>
                </select>
            </div>
        </div>
    </form>
    <div class="layui-form-item">
        <div class="layui-input-block">
            <button class="layui-btn" onclick="save()">保存</button>
        </div>
    </div>
    <script type="text/javascript">
        layui.use(['layer','form'],function(){
            form = layui.form;
            layer = layui.layer;
            $ = layui.jquery;
        });
        function save(){
            $.post('/index.php/Index/add',$('form').serialize(),function(res){
                if(res.code>0){
                    layer.alert(res.msg,{icon:2});
                }else{
                    layer.msg(res.msg);
                    setTimeout(function(){parent.window.location.reload();},1000);
                }
            },'json');
        }
    </script>
</body>
</html>

四、删除数据

controller代码

public function del(){
    $id = Request::param('id');
    $delete = Db::table('shop_goods')->where('id',$id)->delete();
    if($delete){
        echo json_encode(['code'=>0,'msg'=>'删除成功']);
    }else{
        echo json_encode(['code'=>1,'msg'=>'删除失败']);
    }
}

view代码：edit.html

<button class="layui-btn layui-btn-danger layui-btn-xs" onclick="del({$right_v.id})">删除</button>

<script type="text/javascript">
    function del(id){
        layer.confirm('确定要删除吗？', {
            icon:3,
            btn: ['确定','取消']
        }, function(){
            $.post('/index.php/index/del',{'id':id},function(res){
                if(res.code>0){
                    layer.alert(res.msg,{icon:2});
                }else{
                    layer.msg(res.msg);
                    setTimeout(function(){window.location.reload();},1000);
                }
            },'json');
        });
    }
</script>