Laravel学习笔记基础系列--(十一)Laravel上传文件
作者：温新
时间：2021-06-27
文件操作是一个非常常见的操作，用户头像、excel文件等都属于文件上传操作，因此一定要掌握。
文件上传操作是使用Illuminate\Http\Request实例对象中的file方法或动态属性来获取上传的文件信息，使用file方法返回的Illuminate\Http\UploadedFile实例。下面我们要做的是改造index.blade.php，然后开始上传操作。
<span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(170, 85, 0)">// index.blade.php</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)">"{{ route('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(0, 0, 0)">enctype</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">=</span><span style="box-sizing: border-box;color: rgb(170, 17, 17)">"multipart/form-data"</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(0, 0, 0)">value</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">=</span><span style="box-sizing: border-box;color: rgb(170, 17, 17)">"{{old('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)">文件上传</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)">"file"</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)">"file"</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)">value</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>
上传用户头像文件
第一步：编写文件上传代码
<span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(170, 85, 0)">// DemoController.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)">use</span> <span style="box-sizing: border-box;color: rgb(0, 0, 0)">Illuminate\Support\Facades\Storage</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)">Request</span> <span style="box-sizing: border-box;color: rgb(0, 85, 170)">$request</span>)</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px">{</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(119, 0, 136)">if</span> (<span style="box-sizing: border-box;color: rgb(0, 85, 170)">$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)">isMethod</span>(<span style="box-sizing: border-box;color: rgb(170, 17, 17)">'POST'</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)">// 判断有文件上传且文件上传成功</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)">$request</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">-></span><span style="box-sizing: border-box;color: rgb(0, 0, 0)">hasFile</span>(<span style="box-sizing: border-box;color: rgb(170, 17, 17)">'file'</span>) <span style="box-sizing: border-box;color: rgb(152, 26, 26)">&&</span> <span style="box-sizing: border-box;color: rgb(0, 85, 170)">$request</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">-></span><span style="box-sizing: border-box;color: rgb(51, 0, 170)">file</span>(<span style="box-sizing: border-box;color: rgb(170, 17, 17)">'file'</span>)<span style="box-sizing: border-box;color: rgb(152, 26, 26)">-></span><span style="box-sizing: border-box;color: rgb(0, 0, 0)">isValid</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)">// 获取上传文件</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)">$file</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=</span> <span style="box-sizing: border-box;color: rgb(0, 85, 170)">$request</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">-></span><span style="box-sizing: border-box;color: rgb(51, 0, 170)">file</span>(<span style="box-sizing: border-box;color: rgb(170, 17, 17)">'file'</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)">// 获取文件后缀</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)">$ext</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=</span> <span style="box-sizing: border-box;color: rgb(0, 85, 170)">$file</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">-></span><span style="box-sizing: border-box;color: rgb(0, 0, 0)">getClientOriginalExtension</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)">// 获取上传文件大小</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)">$size</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=</span> <span style="box-sizing: border-box;color: rgb(0, 85, 170)">$file</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">-></span><span style="box-sizing: border-box;color: rgb(0, 0, 0)">getSize</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(170, 85, 0)">// 允许文件上传格式</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)">$allowExt</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=</span> [<span style="box-sizing: border-box;color: rgb(170, 17, 17)">'jpg'</span>,<span style="box-sizing: border-box;color: rgb(170, 17, 17)">'jpeg'</span>,<span style="box-sizing: border-box;color: rgb(170, 17, 17)">'gif'</span>,<span style="box-sizing: border-box;color: rgb(170, 17, 17)">'png'</span>];</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(170, 85, 0)">// 允许文件上传大小</span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(0, 85, 170)">$allowSize</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=</span> <span style="box-sizing: border-box;color: rgb(17, 102, 68)">1024</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">*</span> <span style="box-sizing: border-box;color: rgb(17, 102, 68)">1024</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)">// 新文件名</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)">$newFileName</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=</span> <span style="box-sizing: border-box;color: rgb(51, 0, 170)">date</span>(<span style="box-sizing: border-box;color: rgb(170, 17, 17)">'Ymd'</span>) . <span style="box-sizing: border-box;color: rgb(51, 0, 170)">rand</span>(<span style="box-sizing: border-box;color: rgb(17, 102, 68)">100000</span>, <span style="box-sizing: border-box;color: rgb(17, 102, 68)">999999</span>) . <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'.'</span> . <span style="box-sizing: border-box;color: rgb(0, 85, 170)">$ext</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(170, 85, 0)">// 文件保存目录</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)">$saveFileDir</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=</span> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'images/'</span>;</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(170, 85, 0)">// 文件保存路径</span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(0, 85, 170)">$filePath</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=</span> <span style="box-sizing: border-box;color: rgb(0, 85, 170)">$saveFileDir</span> . <span style="box-sizing: border-box;color: rgb(0, 85, 170)">$newFileName</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)">// 对外访问路径</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)">$webPath</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=</span> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'/storage/'</span> . <span style="box-sizing: border-box;color: rgb(0, 85, 170)">$filePath</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)">if</span> (<span style="box-sizing: border-box;color: rgb(152, 26, 26)">!</span><span style="box-sizing: border-box;color: rgb(51, 0, 170)">in_array</span>(<span style="box-sizing: border-box;color: rgb(0, 85, 170)">$ext</span>, <span style="box-sizing: border-box;color: rgb(0, 85, 170)">$allowExt</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(170, 17, 17)">'code'</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=></span> <span style="box-sizing: border-box;color: rgb(17, 102, 68)">4000</span>, <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'msg'</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=></span> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'非法文件上传'</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(119, 0, 136)">if</span> (<span style="box-sizing: border-box;color: rgb(0, 85, 170)">$size</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">></span> <span style="box-sizing: border-box;color: rgb(0, 85, 170)">$allowSize</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(170, 17, 17)">'code'</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=></span> <span style="box-sizing: border-box;color: rgb(17, 102, 68)">4001</span>, <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'msg'</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=></span> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'上传文件过大'</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(119, 0, 136)">if</span> (<span style="box-sizing: border-box;color: rgb(0, 0, 0)">Storage</span>::<span style="box-sizing: border-box;color: rgb(0, 0, 0)">disk</span>(<span style="box-sizing: border-box;color: rgb(170, 17, 17)">'public'</span>)<span style="box-sizing: border-box;color: rgb(152, 26, 26)">-></span><span style="box-sizing: border-box;color: rgb(0, 0, 0)">has</span>(<span style="box-sizing: border-box;color: rgb(0, 85, 170)">$filePath</span>)) {</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(119, 0, 136)">return</span> [<span style="box-sizing: border-box;color: rgb(170, 17, 17)">'code'</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=></span> <span style="box-sizing: border-box;color: rgb(17, 102, 68)">4002</span>, <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'msg'</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=></span> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'文件已经存在'</span>];</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> }</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(170, 85, 0)">// 将文件上传到storage/app/public/images目录下</span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(119, 0, 136)">if</span> (<span style="box-sizing: border-box;color: rgb(0, 85, 170)">$file</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">-></span><span style="box-sizing: border-box;color: rgb(0, 0, 0)">storePubliclyAs</span>(<span style="box-sizing: border-box;color: rgb(0, 85, 170)">$saveFileDir</span>, <span style="box-sizing: border-box;color: rgb(0, 85, 170)">$newFileName</span>, [<span style="box-sizing: border-box;color: rgb(170, 17, 17)">'disk'</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">=></span><span style="box-sizing: border-box;color: rgb(170, 17, 17)">'public'</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)">// 文件上传成功后并返回文件路径</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(170, 17, 17)">'code'</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=></span> <span style="box-sizing: border-box;color: rgb(17, 102, 68)">2000</span>, <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'msg'</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=></span> <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'文件上传成功'</span>, <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'filePath'</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=></span> <span style="box-sizing: border-box;color: rgb(0, 85, 170)">$webPath</span>];</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> }</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> }</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> }</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px">}</span>
第二步：生成软件链接
php artisan storage:link
对外提供资源的目录是public，这里所有使用的上传位置并不是在public目录下，因为需要建立一个软件链接。
php artisan storage:link 命令会在
public目录下生成一个storage指向storage/app/public目录。
上述就是关于用户头像上传的实际案例。如上传word等等也是一样的操作。下面开始记录具体的方法。
上传文件相关方法
获取上传的文件
方法：file
<span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(170, 85, 0)">// 方式一：通过方法</span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(0, 85, 170)">$file1</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=</span> <span style="box-sizing: border-box;color: rgb(0, 85, 170)">$request</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">-></span><span style="box-sizing: border-box;color: rgb(51, 0, 170)">file</span>(<span style="box-sizing: border-box;color: rgb(170, 17, 17)">'file'</span>);</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(170, 85, 0)">// 方式二：通过动态属性</span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(0, 85, 170)">$file2</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=</span> <span style="box-sizing: border-box;color: rgb(0, 85, 170)">$request</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">-></span><span style="box-sizing: border-box;color: rgb(51, 0, 170)">file</span>;</span>
判断文件是否存在
方法：hasFile
<span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(119, 0, 136)">if</span> (<span style="box-sizing: border-box;color: rgb(0, 85, 170)">$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)">hasFile</span>(<span style="box-sizing: border-box;color: rgb(170, 17, 17)">'file'</span>)) {</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px">}</span>
判断文件是否上传成功
方法：isValid
<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)">$request</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">-></span><span style="box-sizing: border-box;color: rgb(51, 0, 170)">file</span>(<span style="box-sizing: border-box;color: rgb(170, 17, 17)">'file'</span>)<span style="box-sizing: border-box;color: rgb(152, 26, 26)">-></span><span style="box-sizing: border-box;color: rgb(0, 0, 0)">isValid</span>()){</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px">}</span>
获取文件路径/扩展名
文件路径方法：path
文件扩展名方法：extension
<span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(170, 85, 0)">/*</span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(170, 85, 0)">* 可以使用方法形式</span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(170, 85, 0)">* 也可以使用动态属性形式</span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"> <span style="box-sizing: border-box;color: rgb(170, 85, 0)">*/</span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(170, 85, 0)">// 获取上传文件路径</span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(170, 85, 0)">// 结果："C:\Windows\php1D5C.tmp"</span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(0, 85, 170)">$path1</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=</span> <span style="box-sizing: border-box;color: rgb(0, 85, 170)">$request</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">-></span><span style="box-sizing: border-box;color: rgb(51, 0, 170)">file</span>(<span style="box-sizing: border-box;color: rgb(170, 17, 17)">'file'</span>)<span style="box-sizing: border-box;color: rgb(152, 26, 26)">-></span><span style="box-sizing: border-box;color: rgb(0, 0, 0)">path</span>();</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(0, 85, 170)">$path2</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=</span> <span style="box-sizing: border-box;color: rgb(0, 85, 170)">$request</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">-></span><span style="box-sizing: border-box;color: rgb(51, 0, 170)">file</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">-></span><span style="box-sizing: border-box;color: rgb(0, 0, 0)">path</span>();</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box"></span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(170, 85, 0)">// 获取文件扩展名</span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(0, 85, 170)">$ext1</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=</span> <span style="box-sizing: border-box;color: rgb(0, 85, 170)">$request</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">-></span><span style="box-sizing: border-box;color: rgb(51, 0, 170)">file</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">-></span><span style="box-sizing: border-box;color: rgb(0, 0, 0)">extension</span>();</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(0, 85, 170)">$ext2</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(51, 0, 170)">file</span>(<span style="box-sizing: border-box;color: rgb(170, 17, 17)">'file'</span>)<span style="box-sizing: border-box;color: rgb(152, 26, 26)">-></span><span style="box-sizing: border-box;color: rgb(0, 0, 0)">getClientOriginalExtension</span>();</span>
获取文件上传大小
方法：getSize
$size = $request->file->getSize();
保存文件
方式一：store保存文件并返回路径。
返回路径：如"public/images/WoJWZp8Oi5CEw1PPCET1dlAoXek84AEYvII4LJyo.png"
<span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(0, 85, 170)">$path1</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=</span> <span style="box-sizing: border-box;color: rgb(0, 85, 170)">$request</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">-></span><span style="box-sizing: border-box;color: rgb(51, 0, 170)">file</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">-></span><span style="box-sizing: border-box;color: rgb(0, 0, 0)">store</span>(<span style="box-sizing: border-box;color: rgb(170, 17, 17)">'public/images'</span>);</span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(170, 85, 0)">// s3需要配置，不然上传失败</span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(0, 85, 170)">$path2</span> <span style="box-sizing: border-box;color: rgb(152, 26, 26)">=</span> <span style="box-sizing: border-box;color: rgb(0, 85, 170)">$request</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">-></span><span style="box-sizing: border-box;color: rgb(51, 0, 170)">file</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">-></span><span style="box-sizing: border-box;color: rgb(0, 0, 0)">store</span>(<span style="box-sizing: border-box;color: rgb(170, 17, 17)">'public/images'</span>, <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'s3'</span>);</span>
store方法会自动生成一个加密的新的文件名
方式二：storeAs保存文件并返回路径。
返回路径：如"public/images/filename.jpg"
<span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(170, 85, 0)">// 自定义文件名</span></span><br></br><span style="box-sizing: border-box;padding-right: 0.1px"><span style="box-sizing: border-box;color: rgb(0, 85, 170)">$path</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(51, 0, 170)">file</span><span style="box-sizing: border-box;color: rgb(152, 26, 26)">-></span><span style="box-sizing: border-box;color: rgb(0, 0, 0)">storeAs</span>(<span style="box-sizing: border-box;color: rgb(170, 17, 17)">'public/images'</span>, <span style="box-sizing: border-box;color: rgb(170, 17, 17)">'filename.jpg'</span>);</span>
方式三：storePubliclyAs
用法：storePublicyAs(保存目录,文件名,驱动方式)。携带第三个参数，默认保存在storage/app/public，反之保存在storage/app目录下。
我是温新
每天进步一点点，就一点点
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