我无法在苗条的v3中得到反应体,它总是空白.我的代码是:
<?php
use \Psr\Http\Message\ServerRequestInterface as Request;
use \Psr\Http\Message\ResponseInterface as Response;
use \Slim\App as Slim;
require 'vendor/autoload.php';
$config['determineRouteBeforeAppMiddleware'] = true;
$app = new Slim(['settings' => $config]);
$mw = (function (Request $request, Response $response, callable $next) {
$response = $response->withStatus(200)->write(' before ');
$response = $next($request, $response);
$body = $response->getBody()->getContents();
$response = $response->withJson(array('data' => $body)); // output should be {"data":" Hello, User seq1 seq2 "}
return $response;
});
$mw1 = (function (Request $request, Response $response, callable $next) {
$response = $next($request, $response);
$response = $response->withStatus(200)->write(' seq1 ');
return $response;
});
$mw2 = (function (Request $request, Response $response, callable $next) {
$response = $next($request, $response);
$response->withStatus(200)->write(' seq2 ');
return $response;
});
$app->add($mw);
$app->get('/hello/{name}', function (Request $request, Response $response) {
$name = $request->getAttribute('name');
$response->getBody()->write(" Hello, $name ");
return $response;
})->add($mw1)->add($mw2);
$app->run();
我想做的是以下内容:
>我不想在每个路由的末尾添加withJson()来编码我的json并输出到客户端(浏览器).我希望中间件在(任何)路由执行结束后为我处理这个问题.
>我想获得最终的主体并将其分配给数组,如$data [‘data’] = $body,然后json对其进行编码并返回修改后的响应.
附: Slim v2比Slim v3容易得多
解决方法:
尝试在中间件mw中更改__toString()的getContents().应该做的另一个改变是在mw2上:你必须返回创建的新响应.
查看完整代码:
<?php
use \Psr\Http\Message\ServerRequestInterface as Request;
use \Psr\Http\Message\ResponseInterface as Response;
use \Slim\App as Slim;
require 'vendor/autoload.php';
$config['determineRouteBeforeAppMiddleware'] = true;
$app = new Slim(['settings' => $config]);
$mw = (function (Request $request, Response $response, callable $next) {
$response = $response->withStatus(200)->write(' before ');
$response = $next($request, $response);
$body = $response->getBody()->__toString();
$response = $response->withJson(array('data' => $body)); // output should be {"data":" Hello, User seq1 seq2 "}
return $response;
});
$mw1 = (function (Request $request, Response $response, callable $next) {
$response = $next($request, $response);
$response = $response->withStatus(200)->write(' seq1 ');
return $response;
});
$mw2 = (function (Request $request, Response $response, callable $next) {
$response = $next($request, $response);
$response = $response->withStatus(200)->write(' seq2 ');
return $response;
});
$app->add($mw);
$app->get('/hello/{name}', function (Request $request, Response $response) {
$name = $request->getAttribute('name');
$response->getBody()->write(" Hello, $name ");
return $response;
})->add($mw1)->add($mw2);
$app->run();
我希望它可以帮到你.
PS:我更喜欢Slim 3:D