将数据从 vue.js 传递到 laravel 9
<p>问题：使用 axios 将数据从 vue.js 传递到 laravel 时出现内部服务器错误</p>
<p>我创建了新的laravel项目并使用vue安装了breece（php artisan Breeze：安装vue）。然后我创建了一个菜单控制器并渲染了 menu.vue，如下所示：</p>
<pre class="brush:php;toolbar:false;">public function index()
{
$menuItems = Menu::all();
return Inertia::render('Menu', [
'menuItems' => $menuItems
]);
}</pre>
<p><code>Route::get('menu',[MenuController::class,'index']); </code>
现在我创建了 CartController</p>
<pre class="brush:php;toolbar:false;"><?php
namespace App\Http\Controllers;
use App\Models\Cart;
use App\Models\Menu;
use Illuminate\Http\Request;
class CartController extends Controller
{
public function store(Request $request)
{
dd("CONTROLLER");
$menu_id = $request->input('id');
$menu = Menu::find($menu_id);
$cart=new Cart();
$cart->table=$request->table;
$cart->menus_id=$menu_id;
$response=$cart->save();
}
}</pre>
<p>这里我必须存储从menu.vue返回的数据
菜单.vue</p>
<pre class="brush:php;toolbar:false;"><script setup>
import { Head } from '@inertiajs/vue3';
</script>
<template>
<Head title="Menu" />
<navbar />
<div
class="grid grid-cols-1 md:grid-cols-3 lg:grid-cols-4 xl:grid-cols-5 gap-4 mx-20"
>
<div v-for="item in menuItems" :key="item.id">
<div class="p-6 bg-white rounded-lg shadow-lg">
<img
v-bind:src="'menuItemImage/' + item.image"
class="w-12 h-12"
/>
<h3 class="text-lg font-medium leading-tight">
{{ item.name }}
</h3>
<button
@click="addToCart(item)"
class="mt-4 bg-blue-500 text-white py-2 px-4 rounded-lg hover:bg-blue-600"
>
Add
</button>
</div>
</div>
</div>
</template>
<script>
import navbar from "@/Layouts/NavbarLayout.vue";
import axios from "axios";
export default {
name: "Menu",
data() {
return {};
},
components: {
navbar,
},
props: ["menuItems"],
methods: {
addToCart(item) {
console.log(item.id);
axios
.post("/cart", {
menu_id: item.id,
})
.then(function (response) {
console.log(response.data);
})
.catch(function (error) {
console.log(error);
});
},
},
};
</script></pre>
<p>问题是当这被调用时</p>
<pre class="brush:php;toolbar:false;">axios
.post("/cart", {
menu_id: item.id,
})</pre>
<p>它给了我这个错误：
错误</p>
<p>这是我的 app.js</p>
<pre class="brush:php;toolbar:false;">axios
import './bootstrap';
import '../css/app.css';
import { createApp, h } from 'vue';
import { createInertiaApp } from '@inertiajs/vue3';
import { resolvePageComponent } from 'laravel-vite-plugin/inertia-helpers';
import { ZiggyVue } from '../../vendor/tightenco/ziggy/dist/vue.m';
const appName = window.document.getElementsByTagName('title')[0]?.innerText || 'Laravel';
createInertiaApp({
title: (title) => `${title} - ${appName}`,
resolve: (name) => resolvePageComponent(`./Pages/${name}.vue`, import.meta.glob('./Pages/**/*.vue')),
setup({ el, App, props, plugin }) {
return createApp({ render: () => h(App, props) })
.use(plugin)
.use(ZiggyVue, Ziggy)
.mount(el);
},
progress: {
color: '#4B5563',
},
});</pre>
<p>这是我的app.blade.php</p>
<pre class="brush:php;toolbar:false;"><!DOCTYPE html>
<html lang="{{ str_replace('_', '-', app()->getLocale()) }}">
<head>
<meta charset="utf-8">
<meta name="viewport" content="width=device-width, initial-scale=1">
<title inertia>{{ config('app.name', 'Laravel') }}</title>
<!-- Fonts -->
<link rel="stylesheet" href="https://fonts.bunny.net/css2?family=Nunito:wght@400;600;700&display=swap">
<!-- Scripts -->
@routes
@vite(['resources/js/app.js', "resources/js/Pages/{$page['component']}.vue"])
@inertiaHead
</head>
<body class="font-sans antialiased">
@inertia
</body>
</html></pre>
<p>这是在存储/日志文件中<code>[2023-02-08 16:39:49] local.ERROR：SQLSTATE [23000]：完整性约束违规：1048 列'menus_id'不能为空（SQL：插入放入 </code>carts<code> (</code>menus_id<code>, </code>table<code>, </code>updated_at<code>, </code>created_at<code>) 值 (?, ?, 2023-02-08 16:39:49, 2023-02-08 16:39:49)) {"异常":"[对象] (Illuminate\\Database\\QueryException(代码: 23000): SQLSTATE[ 23000]：完整性约束违规：1048 列 'menus_id' 不能为空（SQL：插入 </code>carts<code> (</code>menus_id<code>, </code>table<code>, </code >updated_at<code>, </code>created_at<code>) 值 (?, ?, 2023-02-08 16:39:49, 2023-02-08 16:39:49)) 在 D:\\Trinity \\第七届SEM\\项目工作\\ smart_QR_based_restaurant \\供应商\\ laravel \\框架\\ src \\ Illuminate \\ Database \\ Connection.php：760）[stacktrace] </ code> </ p>
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这可能是你的问题，
您正在将此对象作为发布数据传递
{menu_id: item.id}然后你在控制器中调用一个不存在的输入
$request->input('id')$menu_id = $request->input('id'); $menu = Menu::find($menu_id);应该是
$request->input('menu_id');但是，再次检查您的日志以查看引发的实际错误
此外，您应该在控制器中添加验证，以确保您传递的 ID 存在于表中
public function store(Request $request) { $request->validate([ 'menu_id' => 'required|exists:menus,id' ]); $menu_id = $request->input('menu_id'); $menu = Menu::find($menu_id); $cart=new Cart(); $cart->table=$request->table; $cart->menus_id=$menu_id; $response=$cart->save(); }