PC端上传文件多半用插件,引入flash都没关系,但是移动端要是还用各种冗余的插件估计得被喷死,项目里面需要做图片上传的功能,既然H5已经有相关的接口且兼容性良好,当然优先考虑用H5来实现。
用的技术主要是:
ajax
FileReader
FormData
HTML结构:
JavaScript Code复制内容到剪贴板
- <div class=\"camera-area\">
- <form enctype=\"multipart/form-data\" method=\"post\">
- <input type=\"file\" name=\"fileToUpload\" class=\"fileToUpload\" accept=\"image/*\" capture=\"camera\"/>
- <div class=\"upload-progress\"><span></span></div>
- </form>
- <div class=\"thumb\"></div>
- </div>
已经封装好的upload.js,依赖zepto
JavaScript Code复制内容到剪贴板
- (function($) {
- $.extend($.fn, {
- fileUpload: function(opts) {
- this.each(function() {
- var $self = $(this);
- var doms = {
- \"fileToUpload\": $self.find(\".fileToUpload\"),
- \"thumb\": $self.find(\".thumb\"),
- \"progress\": $self.find(\".upload-progress\")
- };
- var funs = {
-
- \"fileSelected\": function() {
- var files = (doms.fileToUpload)[0].files;
- var count = files.length;
- for (var index = 0; index < count; index++) {
- var file = files[index];
- var fileSize = 0;
- if (file.size > 1024 * 1024)
- fileSize = (Math.round(file.size * 100 / (1024 * 1024)) / 100).toString() + \'MB\';
- else
- fileSize = (Math.round(file.size * 100 / 1024) / 100).toString() + \'KB\';
- }
- funs.uploadFile();
- },
-
- uploadFile: function() {
- var fd = new FormData();
- var files = (doms.fileToUpload)[0].files;
- var count = files.length;
- for (var index = 0; index < count; index++) {
- var file = files[index];
- fd.append(opts.file, file);
- funs.previewImage(file);
- }
- var xhr = new XMLHttpRequest();
- xhr.upload.addEventListener(\"progress\", funs.uploadProgress, false);
- xhr.addEventListener(\"load\", funs.uploadComplete, false);
- xhr.addEventListener(\"error\", opts.uploadFailed, false);
- xhr.open(\"POST\", opts.url);
- xhr.send(fd);
- },
-
- previewImage: function(file) {
- var gallery = doms.thumb;
- var img = document.createElement(\"img\");
- img.file = file;
- doms.thumb.html(img);
-
- var reader = new FileReader();
- reader.onload = (function(aImg) {
- return function(e) {
- aImg.src = e.target.result;
- };
- })(img);
- reader.readAsDataURL(file);
- },
- uploadProgress: function(evt) {
- if (evt.lengthComputable) {
- var percentComplete = Math.round(evt.loaded * 100 / evt.total);
- doms.progress.html(percentComplete.toString() + \'%\');
- }
- },
- \"uploadComplete\": function(evt) {
- alert(evt.target.responseText)
- }
- };
- doms.fileToUpload.on(\"change\", function() {
- doms.progress.find(\"span\").width(\"0\");
- funs.fileSelected();
- });
- });
- }
- });
- })(Zepto);
调用方法:
JavaScript Code复制内容到剪贴板
- $(\".camera-area\").fileUpload({
- \"url\": \"savetofile.php\",
- \"file\": \"myFile\"
- });
PHP部分:
PHP Code复制内容到剪贴板
- <?php
- if (isset($_FILES[\'myFile\'])) {
-
- writeLog($_FILES);
- move_uploaded_file($_FILES[\'myFile\'][\'tmp_name\'], \"uploads/\" . $_FILES[\'myFile\'][\'name\']);
- echo \'successful\';
- }
- function writeLog($log){
- if(is_array($log) || is_object($log)){
- $log = json_encode($log);
- }
- $log = $log.\"\\r\\n\";
-
- file_put_contents(\'log.log\', $log,FILE_APPEND);
- }
- ?>
点击这里下载源码
以上这篇移动端HTML5实现文件上传功能【附代码】就是小编分享给大家的全部内容了,希望能给大家一个参考,也希望大家多多支持phpstudy。
原文地址:http://www.cnblogs.com/hutuzhu/p/5254532.html
本文地址:https://www.stayed.cn/item/21076
转载请注明出处。
本站部分内容来源于网络,如侵犯到您的权益,请 联系我