vue.js

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Laravel with Vue.js

参考链接：

Laravel中使用vue.js实现前后端分离。Laravel 后端只提供 api供 Vue.js 前端调用。

Laravel 配置

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$ laravel new todo

项目的入口 spa 视图

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$ php artisan make:controller SpaController

Http/Controllers/SpaController.php

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<?php

namespace App\Http\Controllers;

use Illuminate\Http\Request;

class SpaController extends Controller
{
    public function index()
    {
        // 项目的入口
        return view('spa');
    }
}

配置入口路由

routes/web.php

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<?php
// where()使用正则表达式匹配，.* 代表任何url都会被匹配
Route::get('/{any}', 'SpaController@index')->where('any', '.*');

入口视图 spa

resources/views/spa.blade.php

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<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>Vue SPA Demo</title>
</head>
<body>
<div id="app">
    <app></app>
</div>

<script src="{{ mix('js/app.js') }}"></script>
</body>
</html>

resources/js/app.js

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import Vue from 'vue'
import VueRouter from 'vue-router'

Vue.use(VueRouter);

import App from './views/App'
import Hello from './views/Hello'
import Home from './views/Home'
import UsersIndex from "./views/UsersIndex";
import UsersEdit from "./views/UsersEdit";
import NotFound from "./views/NotFound"
import UsersCreate from "./views/UsersCreate";

const router = new VueRouter({
    mode: 'history',
    routes: [
        {
            path: '/',
            name: 'home',
            component: Home
        },
        {
            path: '/hello',
            name: 'hello',
            component: Hello,
        },
        {
            path: '/users',
            name: 'users.index',
            component: UsersIndex,
        },
        {
            path: '/users/:id/edit',
            name: 'users.edit',
            component: UsersEdit,
        },
        {
            path: '/users/create',
            name: 'users.create',
            component: UsersCreate,
        },
        {
            path: '/404',
            name: '404',
            component: NotFound,
        },
        {
            path: '*',
            redirect: '/404'
        },
    ],
});

const app = new Vue({
    el: '#app',
    components: { App },
    router,
});

resources/js/views/App.vue

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<template>
    <div>
        <h1>Vue Router Demo App</h1>

        <p>
            <router-link :to="{ name: 'home' }">Home</router-link> |
            <router-link :to="{ name: 'hello' }">Hello World</router-link>
            <router-link :to="{ name: 'users.index' }">Users</router-link>
        </p>

        <div class="container">
            <router-view></router-view>
        </div>
    </div>
</template>
<script>
    export default {}
</script>

显示所有用户

用户数据填充

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$ php artisan make:seeder UsersTableSeeder

database/seeds/UsersTableSeeder.php

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<?php

use Illuminate\Database\Seeder;

class UsersTableSeeder extends Seeder
{
    /**
     * Run the database seeds.
     *
     * @return void
     */
    public function run()
    {
        factory(App\User::class, 50)->create();
    }
}

database/seeds/DatabaseSeeder.php

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<?php

use Illuminate\Database\Seeder;

class DatabaseSeeder extends Seeder
{
    /**
     * Seed the application's database.
     *
     * @return void
     */
    public function run()
    {
        $this->call([
            UsersTableSeeder::class,
        ]);
    }
}

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$ php artisan migrate:refresh --seed

Users 控制器

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$ php artisan make:controller Api/UsersController
$ php artisan make:resource UserResource

routes/api.php

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<?php
...

Route::namespace('Api')->group(function () {
    Route::get('/users', 'UsersController@index');
});

app/Http/Controllers/Api/UsersController.php

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<?php

namespace App\Http\Controllers\Api;

use App\Http\Controllers\Controller;
use Illuminate\Http\Request;
use App\User;
use App\Http\Resources\UserResource;

class UsersController extends Controller
{
    public function index()
    {
        return UserResource::collection(User::paginate(10));
    }

    public function show(User $user)
    {
        return new UserResource($user);
    }

    public function update(User $user,Request $request)
    {
        $data = $request->validate([
           'name' => 'required',
            'email' => 'required|email',
        ]);

        $user->update($data);
        return new UserResource($user);
    }

    public function destroy(User $user)
    {
        $user->delete();

        return response(null, 204);
    }

    public function store(Request $request)
    {
        $data = $request->validate([
            'name' => 'required',
            'email' => 'required|unique:users',
            'password' => 'required|min:8',
        ]);

        return new UserResource(User::create([
            'name' => $data['name'],
            'email' => $data['email'],
            'password' => bcrypt($data['password']),
        ]));
    }
}

UserIndex.vue 前端文件

Vue-router

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// 命名的路由
router.push({ name: 'user', params: { userId: '123' }})

router.push({ name: 'user', params: { userId }}) // -> /user/123

// 带查询参数，变成 /register?plan=private
router.push({ path: 'register', query: { plan: 'private' }})

分页的数据结构
分页数据结构

resources/js/views/UsersIndex.vue

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<template>
    <div class="users">
        <div v-if="error" class="error">
            <p>{{ error }}</p>
        </div>

        <ul v-if="users">
            <li v-for="{ id ,name, email } in users">
                <strong>Name:</strong> {{ name }},
                <strong>Email:</strong> {{ email }}
                <router-link :to="{ name: 'users.edit',params: {id} }">Edit</router-link>
            </li>
        </ul>

        <div class="pagination">
            <button :disabled="! prevPage" @click.prevent="goToPrev">Previous</button>
            {{ paginatonCount }}
            <button :disabled="! nextPage" @click.prevent="goToNext">Next</button>
        </div>

        <div>
            <router-link :to="{ name: 'users.create' }">Add User</router-link>
        </div>
    </div>
</template>
<script>
    import axios from 'axios';

    const getUsers = (page,callback)=> {
        const params = { page };

        axios
            .get('/api/users',{params})
            .then(response => {
                callback(null, response.data);
            }).catch(error => {
                callback(error, error.response.data);
        });
    }
    export default {
        data() {
            return {
                //loading: false,
                users: null,
            //     "meta": {
            //     "current_page": 1,
            //     "from": 1,
            //     "last_page": 5,
            //     "path":
            //     "per_page": 10,
            //     "to": 10,
            //     "total": 50
            // }
                meta: null,
                links: {
                    first: null,
                    last: null,
                    next: null,
                    prev: null,
                },
                error: null,
            };
        },
        computed: {
            nextPage() {
                if (!this.meta || this.meta.current_page ==
                this.meta.last_page) {
                    return;
                }

                return this.meta.current_page + 1;
            },
            prevPage() {
                if (!this.meta || this.meta.current_page ==
                    1) {
                    return;
                }

                return this.meta.current_page - 1;

            },
            paginatonCount() {
                if (!this.meta) {
                    return;
                }
                const {current_page,last_page} = this.meta;
                return `${current_page} of ${last_page}`;
            },
        },
        beforeRouteEnter (to, from, next) {
            getUsers(to.query.page, (err, data) => {
                next(vm => vm.setData(err, data));
            });
        },
        beforeRouteUpdate (to, from, next) {
            this.users = this.links = this.meta = null
            getUsers(to.query.page, (err, data) => {
                this.setData(err, data);
                next();
            });
        },
        created() {

        },
        methods: {
            goToNext() {
                this.$router.push({
                    query: {
                        page: this.nextPage,
                    }
                })
            },
            goToPrev() {
                this.$router.push({
                    name: 'users.index',
                    query: {
                        page: this.prevPage,
                    }
                });
            },
            setData(err, { data: users, links, meta }) {
                if (err) {
                    this.error = err.toString();
                } else {
                    this.users = users;
                    this.links = links;
                    this.meta = meta;
                }
            },
         }
    }
</script>