php - "Type error: Too few arguments to function App\Http\Controllers\UserController::create(), 0 passed and exactly 1 expected"

Question

我在将数据插入数据库时​​遇到问题。假设我有一个名为 HeroController 的 Controller ，我想创建一个新的英雄对象并将其作为新英雄插入到我的数据库中。

我的 Controller 包含以下方法:

<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;
use App\User;

class UserController extends Controller
{
    /**
     * Display a listing of the resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function index()
    {
//        return response()->json([
//            'name' => 'Abigail',
//            'state' => 'CA'
//        ]);
    }

    /**
     * Show the form for creating a new resource.
     *
     * @return \Illuminate\Http\Response
     */
    public function validator(array $data)
    {
        return Validator::make($data, [
            'name' => 'required|max:255',
            'email' => 'required|email|max:255|unique:users',
            'password' => 'required|min:6',
        ]);
    }
    public function create(array $data)
    {

        $user = User::create([
            'name' => $data['name'],
            'email' => $data['email'],
            'password' => bcrypt($data[password]),
        ]);
    }
    /**
     * Store a newly created resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @return \Illuminate\Http\Response
     */
    public function store(Request $request)
    {
        $user = $request->isMethod('put');

        $user = new User;
        $user->name = $request->name;
        $user->email = $request->email;
        $user->password = $request->password;
        $user->save();

        return response()->json($usere, 201);
    }

    /**
     * Display the specified resource.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function show($id)
    {
        //
    }

    /**
     * Show the form for editing the specified resource.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function edit($id)
    {
        //
    }

    /**
     * Update the specified resource in storage.
     *
     * @param  \Illuminate\Http\Request  $request
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function update(Request $request, $id)
    {
        //
    }

    /**
     * Remove the specified resource from storage.
     *
     * @param  int  $id
     * @return \Illuminate\Http\Response
     */
    public function destroy($id)
    {
        //
    }
}

我的routes.php文件:

<?php

/*
|--------------------------------------------------------------------------
| Web Routes
|--------------------------------------------------------------------------
|
| Here is where you can register web routes for your application. These
| routes are loaded by the RouteServiceProvider within a group which
| contains the "web" middleware group. Now create something great!
|
*/

Route::get('/', function () {
    return view('welcome');
});


Route::get('/users/create', 'UserController@create');

这是我收到的错误。类型错误:函数 App\Http\Controllers\UserController::attendance() 的参数太少，已传递 0 个，预期为 1 个”。我是 Laravel 的新手。

Answer 1

您正在使用 get 请求来调用 create 函数。

Route::get('/users/create', 'UserController@create');

因此，您没有将任何数据传递给该 Controller 。因此出现错误。