Laravel学习笔记基础系列--(十七)Laravel 表单数据验证
作者：温新
时间：2021-06-27
在之前的演示中并没有对表单数据进行后端验证，永远不要相信用户的提交的数据。Laravel中提供了很多方法便于我们对数据验证。
本案例基于DemoController中的demo/test表单页面进行演示。下面来改造表单。
<span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(170, 85, 0)">// demo/test.blade.php</span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(0, 0, 0)">@extends</span>(<span style="box-sizing: border-box;color: rgb(170, 17, 17)">'layouts.layout'</span>)</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(0, 0, 0)">@section</span>(<span style="box-sizing: border-box;color: rgb(170, 17, 17)">'title'</span>, <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'添加用户'</span>)</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(0, 0, 0)">@section</span>(<span style="box-sizing: border-box;color: rgb(170, 17, 17)">'header'</span>)</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(152, 26, 26)"><</span><span style="box-sizing: border-box;color: rgb(0, 0, 0)">h3</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">></span><span style="box-sizing: border-box;color: rgb(0, 0, 0)">添加用户</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)"></</span><span style="box-sizing: border-box;color: rgb(0, 0, 0)">h3</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">></span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(0, 0, 0)">@endsection</span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(0, 0, 0)">@section</span>(<span style="box-sizing: border-box;color: rgb(170, 17, 17)">'content'</span>)</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(152, 26, 26)"><</span><span style="box-sizing: border-box;color: rgb(0, 0, 0)">form</span> <span style="box-sizing: border-box;color: rgb(0, 0, 0)">action</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">=</span><span style="box-sizing: border-box;color: rgb(170, 17, 17)">"/demo/store"</span> <span style="box-sizing: border-box;color: rgb(0, 0, 0)">method</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">=</span><span style="box-sizing: border-box;color: rgb(170, 17, 17)">"POST"</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">></span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(0, 0, 0)">@csrf</span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(0, 0, 0)">用户名：</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)"><</span><span style="box-sizing: border-box;color: rgb(0, 0, 0)">input</span> <span style="box-sizing: border-box;color: rgb(0, 0, 0)">type</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">=</span><span style="box-sizing: border-box;color: rgb(170, 17, 17)">"text"</span> <span style="box-sizing: border-box;color: rgb(0, 0, 0)">name</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">=</span><span style="box-sizing: border-box;color: rgb(170, 17, 17)">"username"</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">></span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(0, 0, 0)">密码：</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)"><</span><span style="box-sizing: border-box;color: rgb(0, 0, 0)">input</span> <span style="box-sizing: border-box;color: rgb(0, 0, 0)">type</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">=</span><span style="box-sizing: border-box;color: rgb(170, 17, 17)">"password"</span> <span style="box-sizing: border-box;color: rgb(0, 0, 0)">name</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">=</span><span style="box-sizing: border-box;color: rgb(170, 17, 17)">"password"</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">></span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(152, 26, 26)"><</span><span style="box-sizing: border-box;color: rgb(0, 0, 0)">input</span> <span style="box-sizing: border-box;color: rgb(0, 0, 0)">type</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">=</span><span style="box-sizing: border-box;color: rgb(170, 17, 17)">"submit"</span> <span style="box-sizing: border-box;color: rgb(0, 0, 0)">name</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">=</span><span style="box-sizing: border-box;color: rgb(170, 17, 17)">"提交"</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">></span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(152, 26, 26)"></</span><span style="box-sizing: border-box;color: rgb(0, 0, 0)">form</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">></span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(0, 0, 0)">@endsection</span></span>
视图文件中添加错误信息输出
<span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(170, 85, 0)">// demo/test.blade.php</span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(0, 0, 0)">@section</span>(<span style="box-sizing: border-box;color: rgb(170, 17, 17)">'content'</span>)</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(0, 0, 0)">@if</span> (<span style="box-sizing: border-box;color: rgb(0, 85, 170)">$errors</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">-></span><span style="box-sizing: border-box;color: rgb(0, 0, 0)">any</span>())</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(152, 26, 26)"><</span><span style="box-sizing: border-box;color: rgb(0, 0, 0)">div</span> <span style="box-sizing: border-box;color: rgb(119, 0, 136)">class</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">=</span><span style="box-sizing: border-box;color: rgb(170, 17, 17)">"alert alert-danger"</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">></span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(152, 26, 26)"><</span><span style="box-sizing: border-box;color: rgb(0, 0, 0)">ul</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">></span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(0, 0, 0)">@foreach</span> (<span style="box-sizing: border-box;color: rgb(0, 85, 170)">$errors</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">-></span><span style="box-sizing: border-box;color: rgb(0, 0, 0)">all</span>() <span style="box-sizing: border-box;color: rgb(119, 0, 136)">as</span> <span style="box-sizing: border-box;color: rgb(0, 85, 170)">$error</span>)</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(152, 26, 26)"><</span><span style="box-sizing: border-box;color: rgb(0, 0, 0)">li</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">></span>{{ <span style="box-sizing: border-box;color: rgb(0, 85, 170)">$error</span> }}<span style="box-sizing: border-box;color: rgb(152, 26, 26)"></</span><span style="box-sizing: border-box;color: rgb(0, 0, 0)">li</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">></span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(0, 0, 0)">@endforeach</span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(152, 26, 26)"></</span><span style="box-sizing: border-box;color: rgb(0, 0, 0)">ul</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">></span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(152, 26, 26)"></</span><span style="box-sizing: border-box;color: rgb(0, 0, 0)">div</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">></span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(0, 0, 0)">@endif</span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(0, 0, 0)">@endsection</span></span>
方式一：控制器验证
方法：validate()
<span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(119, 0, 136)">public</span> <span style="box-sizing: border-box;color: rgb(119, 0, 136)">function</span> <span style="box-sizing: border-box;color: rgb(0, 0, 255)">store</span>(<span style="box-sizing: border-box;color: rgb(0, 0, 0)">Request</span> <span style="box-sizing: border-box;color: rgb(0, 85, 170)">$request</span>)</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px">{</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(0, 85, 170)">$validate</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=</span> <span style="box-sizing: border-box;color: rgb(0, 85, 170)">$request</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">-></span><span style="box-sizing: border-box;color: rgb(0, 0, 0)">validate</span>([</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'username'</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=></span> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'required'</span>,</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'password'</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=></span> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'required|min:6|max:18'</span>,</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> ],[</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'username.required'</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=></span> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'用户名必须填写'</span>,</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'password.required'</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=></span> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'密码必须填写'</span>,</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'password.min'</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=></span> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'密码最低6位'</span>,</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'password.max'</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=></span> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'密码长度不能超过18位'</span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> ]);</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px">}</span>
validate第一个参数是验证规则，第二个参数是自定义验证规则。默认是英文提示，第二个参数可以自定义为中文提示。
方式二：手动创建验证器验证
通过 Illuminate\Support\Facades\Validator 中的make()方法验证
<span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(170, 85, 0)">// DemoController中store方法</span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(119, 0, 136)">use</span> <span style="box-sizing: border-box;color: rgb(0, 0, 0)">Illuminate\Support\Facades\Validator</span>;</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(0, 85, 170)">$data</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=</span> <span style="box-sizing: border-box;color: rgb(0, 85, 170)">$request</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">-></span><span style="box-sizing: border-box;color: rgb(0, 0, 0)">all</span>();</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(170, 85, 0)">// 错误提示信息</span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(0, 85, 170)">$messages</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=</span> [</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'username.required'</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=></span> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'用户名必须填写'</span>,</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'password.required'</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=></span> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'密码必须填写'</span>,</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'password.min'</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=></span> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'密码最低6位'</span>,</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'password.max'</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=></span> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'密码长度不能超过18位'</span>,</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px">];</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(0, 85, 170)">$validator</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=</span> <span style="box-sizing: border-box;color: rgb(0, 0, 0)">Validator</span>::<span style="box-sizing: border-box;color: rgb(0, 0, 0)">make</span>(<span style="box-sizing: border-box;color: rgb(0, 85, 170)">$data</span>, [</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'username'</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=></span> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'required'</span>,</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'password'</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=></span> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'required|min:6|max:18'</span>,</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px">], <span style="box-sizing: border-box;color: rgb(0, 85, 170)">$messages</span>);</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(170, 85, 0)">// 验证未通过重定向到指定界面，并提示错误信息</span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(119, 0, 136)">if</span> (<span style="box-sizing: border-box;color: rgb(0, 85, 170)">$validator</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">-></span><span style="box-sizing: border-box;color: rgb(0, 0, 0)">fails</span>()) {</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(119, 0, 136)">return</span> <span style="box-sizing: border-box;color: rgb(0, 0, 0)">redirect</span>(<span style="box-sizing: border-box;color: rgb(170, 17, 17)">'/demo/test'</span>)<span style="box-sizing: border-box;color: rgb(152, 26, 26)">-></span><span style="box-sizing: border-box;color: rgb(0, 0, 0)">withErrors</span>(<span style="box-sizing: border-box;color: rgb(0, 85, 170)">$validator</span>)<span style="box-sizing: border-box;color: rgb(152, 26, 26)">-></span><span style="box-sizing: border-box;color: rgb(0, 0, 0)">withInput</span>();</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px">}</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(0, 0, 0)">dd</span>(<span style="box-sizing: border-box;color: rgb(0, 85, 170)">$request</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">-></span><span style="box-sizing: border-box;color: rgb(0, 0, 0)">all</span>());</span>
方式三：表单请求验证（推荐）
第一步：创建验证控制器
php artisan make:request StorePostRequest
该命令会在对应的目录与文件，位置在app/Http/Requests/StorePostRequest.php，文件内容如下
<span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(152, 26, 26)"><?</span><span style="box-sizing: border-box;color: rgb(0, 0, 0)">php</span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(119, 0, 136)">namespace</span> <span style="box-sizing: border-box;color: rgb(0, 0, 255)">App\Http\Requests</span>;</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(119, 0, 136)">use</span> <span style="box-sizing: border-box;color: rgb(0, 0, 0)">Illuminate\Foundation\Http\FormRequest</span>;</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(119, 0, 136)">class</span> <span style="box-sizing: border-box;color: rgb(0, 0, 255)">StorePostRequest</span> <span style="box-sizing: border-box;color: rgb(119, 0, 136)">extends</span> <span style="box-sizing: border-box;color: rgb(0, 0, 0)">FormRequest</span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px">{</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(119, 0, 136)">public</span> <span style="box-sizing: border-box;color: rgb(119, 0, 136)">function</span> <span style="box-sizing: border-box;color: rgb(0, 0, 255)">authorize</span>()</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> {</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(119, 0, 136)">return</span> <span style="box-sizing: border-box;color: rgb(34, 17, 153)">false</span>;</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> }</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(119, 0, 136)">public</span> <span style="box-sizing: border-box;color: rgb(119, 0, 136)">function</span> <span style="box-sizing: border-box;color: rgb(0, 0, 255)">rules</span>()</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> {</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(119, 0, 136)">return</span> [];</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> }</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px">}</span>
第二步：修改StorePostRequest.php文件
<span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(119, 0, 136)">public</span> <span style="box-sizing: border-box;color: rgb(119, 0, 136)">function</span> <span style="box-sizing: border-box;color: rgb(0, 0, 255)">authorize</span>()</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px">{</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(119, 0, 136)">return</span> <span style="box-sizing: border-box;color: rgb(34, 17, 153)">true</span>;</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px">}</span>
第三步：在该文件中编写验证规则与错误信息
<span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(170, 85, 0)">// 验证规则</span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(119, 0, 136)">public</span> <span style="box-sizing: border-box;color: rgb(119, 0, 136)">function</span> <span style="box-sizing: border-box;color: rgb(0, 0, 255)">rules</span>()</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px">{</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(119, 0, 136)">return</span> [</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'username'</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=></span> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'required'</span>,</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'password'</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=></span> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'required|min:6|max:18'</span>,</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> ];</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px">}</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(170, 85, 0)">// 添加messages()方法自定义错误信息</span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(119, 0, 136)">public</span> <span style="box-sizing: border-box;color: rgb(119, 0, 136)">function</span> <span style="box-sizing: border-box;color: rgb(0, 0, 255)">messages</span>()</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px">{</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(119, 0, 136)">return</span> [</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'username.required'</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=></span> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'用户名必须填写'</span>,</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'password.required'</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=></span> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'密码必须填写'</span>,</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'password.min'</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=></span> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'密码最低6位'</span>,</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'password.max'</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=></span> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'密码长度不能超过18位'</span>,</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> ];</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px">}</span>
第四步：控制器使用
<span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(170, 85, 0)">// DemoController.php store方法</span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(119, 0, 136)">use</span> <span style="box-sizing: border-box;color: rgb(0, 0, 0)">App\Http\Requests\StorePostRequest</span>;</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(119, 0, 136)">public</span> <span style="box-sizing: border-box;color: rgb(119, 0, 136)">function</span> <span style="box-sizing: border-box;color: rgb(0, 0, 255)">store</span>(<span style="box-sizing: border-box;color: rgb(0, 0, 0)">StorePostRequest</span> <span style="box-sizing: border-box;color: rgb(0, 85, 170)">$request</span>)</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px">{</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(0, 0, 0)">dd</span>(<span style="box-sizing: border-box;color: rgb(0, 85, 170)">$request</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">-></span><span style="box-sizing: border-box;color: rgb(0, 0, 0)">all</span>());</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px">}</span>
基础操作到这里告一段落了，接下来是数据库相关的操作。
我是温新
每天进步一点点，就一点点
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