ThinkPHP进阶

1.访问方式

①:http://localhost/tp2/public/index.php/test/h2

②:http://localhost:8003/Test/h2

 2.中间件

①定义中间件

namespace app\middleware;

class Check
{
    /**
     * 处理请求
     *
     * @param \think\Request $request
     * @param \Closure       $next
     * @return Response
     */
    public function handle($request, \Closure $next)
    {

        echo "中间件执行";
        if($request->param("name")=="abc"){
           return redirect("test2");
        }

        //后置中间件,执行完请求方法之后执行中间件代码
        //$next($request)返回值就是请求方法执行后返回给浏览器的报文
        //echo "-----后置中间件-----------";
        //return  $response;

        //前置中间件,在请求方法执行之前执行相关代码
        return  $next($request);
    }

    //请求方法执行完返回到浏览器后，再执行的方法
    public function end(Response $response){
        echo "<hr/>";
        echo $response->getData()."===".$response->getCode();
    }
}

②注册中间件

app/middleware.php

   \app\middleware\Check::class,

③测试

public function test1($name="aaa"){
        return "test1方法".$name;
}

public function test2(){
        return "test2方法";
}

路由方式注册中间件:

class Index extends BaseController
{
    public function test3($id){
        return "id是-->".$id;
    }
}

Route::get("t3/:id","index/test3")->middleware(\app\middleware\Auth::class);

//多个中间件
use app\middleware\Auth;
Route::get("t3/:id","index/test3")->middleware([Auth::class,\app\middleware\Check::class]);

别名方式注册中间件:

//config/middleware.php
'alias'    => [
        "Auth" => \app\middleware\Auth::class,
    ],

Route::get("t3/:id","index/test3")->middleware(["Auth",\app\middleware\Check::class]);

中间件传递额外参数:

Route::get("t3/:id","index/test3")->middleware(["Auth"],"额外参数");

class Auth
{
    public function handle($request, \Closure $next,$thParam)
    {
        echo $thParam;
        return $next($request);
    }
}

如果中间件内容较少可以使用闭包方式:

Route::get("t3/:id","index/test3")->middleware(function ($request, \Closure $next){
    echo "闭包中间件";
    return $next($request);
});

在控制器里注册中间件，当控制器执行的时候执行中间件

class Index extends BaseController
{
    protected $middleware=[Auth2::class];
}

//控制器的个别方法执行中间件
class Index extends BaseController
{
    protected $middleware=[
        Auth2::class=>[
            "only"=>['test2'],
            "except"=>["test3"]
        ]
    ];
    ....
}

中间件通过$request传递参数到控制器方法

class Auth2
{
    public function handle($request, \Closure $next)
    {
        $request->myName="霸王别姬";
        return $next($request);
    }
}

public function test2(Request  $req){
        echo $req->myName;
        return "test2方法";
    }