将JSON数据发送到Laravel服务器

我有一个角度应用程序，在这里我通过json将数据发送到我的laravel服务器。我的服务器在VM（ubuntu）上：

这是我从angular应用程序将其发送到服务器的地方。

this.http.post(this.loginURL, requestBody, options)

在我的laravel服务器上，我有以下路线：

Route::get('patientlogin','UploadController@login');

和控制器的方法

 public function login(Request $request){
    // error_reporting(-1); // prints every error, warning, etc
    error_reporting(0); // no output at all

    // set content-type of response to json
    header('Content-Type: application/json');

    // import Auth class and custom functions
    // require_once('custom_functions.php');


    $LOGIN_LOG_FILE = "login1.log";
    $AUTH_HEADERS_FILE = "auth-headers1.txt";


    /*
        php://input is raw input, regardless of header field "content-type"
        The PHP superglobal $_POST, only is supposed to wrap data that is either
        application/x-www-form-urlencoded or multipart/form-data-encoded
        http://stackoverflow.com/a/8893792

        When sending only a JSON, $_POST etc will not be populated and php://input has to be used
        in the php scripts
        http://stackoverflow.com/questions/1282909/php-post-array-empty-upon-form-submission
        http://php.net/manual/de/wrappers.php.php
    */



    $content =  $request->instance();
    $json_raw = $content->json()->all();
    $json = json_decode($json_raw, true);


    /* <-- DEBUGGING START TODO delete */
    //read the header, where username and password are supposed to be in
    $headers = apache_request_headers();

    //print the contents of the headers array in a neat structure and log them
    $headersPrintable = print_r($headers, true);
    file_put_contents($AUTH_HEADERS_FILE, $headersPrintable, FILE_APPEND);

    $request = print_r($_REQUEST, true);
    $post = print_r($_POST, true);
    file_put_contents("auth-req.txt", $request, FILE_APPEND);
    file_put_contents("auth-post.txt", $post, FILE_APPEND);

    file_put_contents("auth-req-json.txt", $json_raw, FILE_APPEND);
    file_put_contents("auth-req-json_decoded.txt", $json, FILE_APPEND);
    /* DEBUGGING END --> */

    $valid = false;
    $username = "";

    //check if username and passord exist in the json-decoded version of php://input
    if(array_key_exists("username", $json) && array_key_exists("password", $json)) {
        $username = $json["username"];
        $password = $json["password"];
        $valid = Auth::checkCredentials($username, $password);
    }

    $response = array(
        "username" => $username,
        "valid" => $valid
    );

    echo json_encode($response);

    //exit();

}

现在，当我运行该应用程序时，我得到了错误：

POST http：// ip / patientlogin 405（不允许使用方法）

当我更改web.php中的get来发布时，出现此错误：

polyfills.js:1 POST http://ip/patientlogin 500 (Internal Server Error)

当我尝试在浏览器中调用网址时：

MethodNotAllowedHttpException in RouteCollection.php line 218:

有人知道错误可能是什么或我在做什么错吗？