前端部分
执行函数，注意file那有个await，获取到文件数据后，装在FormData里面，然后调用下文axios的uploadFile
async uploadFiles() {let inputObj = document.createElement("input");let file = await new Promise((res) => {inputObj.setAttribute("id", "file");inputObj.setAttribute("type", "file");inputObj.setAttribute("name", "file");inputObj.setAttribute("style", "visibility:hidden");document.body.appendChild(inputObj);inputObj.click();document.querySelector("#file").addEventListener("change", (e) => {console.log(e.target.files);res(e.target.files)});});let formdata = new FormData()formdata.append('myFile', file[0])await this._http.uploadFile(formdata).then(console.log);document.body.removeChild(inputObj)},
http请求集中管理
async uploadFile(file) {return axios.post(`/Upload.php`,file,{headers: {"Content-Type": "multipart/form-data"}})}
php后端部分
接收参数，调用uploadFile
<?phpheader('content-type:text/html;charset=utf-8');$fileInfo=$_FILES["myFile"];$maxSize=10485760;//10M,10*1024*1024$allowExt=array('jpeg','jpg','png','tif');$path="uploads";include_once 'UploadFile.php';uploadFile($fileInfo, $path, $allowExt, $maxSize);
封装uploadFile函数
<?phpfunction uploadFile($fileInfo, $path, $allowExt, $maxSize){$filename = $fileInfo["name"];$tmp_name = $fileInfo["tmp_name"];$size = $fileInfo["size"];$error = $fileInfo["error"];$type = $fileInfo["type"];//服务器端设定限制$ext = pathinfo($filename, PATHINFO_EXTENSION);//目的信息if (!file_exists($path)) {mkdir($path, 0777, true);chmod($path, 0777);}$uniName = md5(uniqid(microtime(true), true)) . '.' . $ext;$destination = $path . "/" . $uniName;if ($error == 0) {if ($size > $maxSize) {exit("上传文件过大！");}if (!in_array($ext, $allowExt)) {exit("非法文件类型");}if (!is_uploaded_file($tmp_name)) {exit("上传方式有误，请使用post方式");}//判断是否为真实图片（防止伪装成图片的病毒一类的if (!getimagesize($tmp_name)) {//getimagesize真实返回数组，否则返回falseexit("不是真正的图片类型");}if (@move_uploaded_file($tmp_name, $destination)) {//@错误抑制符，不让用户看到警告echo "文件" . $filename . "上传成功!";} else {echo "文件" . $filename . "上传失败!";}} else {switch ($error) {case 1:echo "超过了上传文件的最大值，请上传2M以下文件";break;case 2:echo "上传文件过多，请一次上传20个及以下文件！";break;case 3:echo "文件并未完全上传，请再次尝试！";break;case 4:echo "未选择上传文件！";break;case 7:echo "没有临时文件夹";break;}}return $destination;}
