前端使用了图片上传组件来上传图片,那么后台如何来正确存储入库呢
网上找的一段图片上组件的 ,效果代码如下:
<style> .img_up { overflow: hidden; margin-top: 20px; padding-top: 15px; } .img_up .img_look { float: left; } .img_up .img_look .picc { width: 60px; height: 60px; border-radius: 5px; float: left; background-repeat: no-repeat; background-position: center; background-size: cover; margin: 0 3px; margin-bottom: 15px; position: relative; } .img_up .img_look .picc .k_close { position: absolute; width: 15px; height: 15px; background: url('data:image/png;base64,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') no-repeat center; top: -7px; right: -4px; } .img_up .uploadImgBtn { float: left; width: 60px; height: 60px; float: left; margin: 0 3px; border: 1px solid #e4e4e4; background: url('data:image/png;base64,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') no-repeat center; } .img_up .uploadImgBtn input { width: 100%; height: 100%; opacity: 0; } .img_up_b { float: none; padding-left: 340px; padding-right: 15px; } .img_up_b .piccc { float: left; width: 116px; height: 116px; border-radius: 5px; margin-bottom: 15px; background: #f5f5f5 url('data:image/png;base64,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') no-repeat center; } .img_up_b .img_look { float: none; overflow: hidden; } .img_up_b .uploadImgBtn { float: none; margin-top: 15px; margin-top: 0; position: relative; width: 106px; height: 38px; background: #f6f6f6; border: 1px solid #b4b4b4; } .img_up_b .uploadImgBtn input { position: relative; z-index: 10; cursor: pointer; } .img_up_b .uploadImgBtn span { display: block; position: absolute; width: 100%; z-index: 5; text-align: center; top: 0px; left: 0; display: block; color: #5a5a5a; line-height: 36px; } .img_up_b .img_look .picc { width: 116px; height: 116px; } .img_up_b .img_look .picc .k_close { display: none; } </style> <div class="img_up"> <div class="img_look"></div> <div class="uploadImgBtn" id="uploadImgBtn"> <input class="uploadImg" type="file" name="file" multiple="" id="file"> </div> </div> <script> var files; $(document).ready(function () { $("#uploadImgBtn").click(function () { /* 1、先获取input标签 2、给input标签绑定change事件 3、把图片回显 */ // 1、先回去input标签 var $input = $("#file"); console.log($input) // 2、给input标签绑定change事件 $input.on("change", function () { //给input标签设置multiple属性,一次可以上传多个文件 //获取选择图片的个数 files = this.files; var length = files.length; console.log("选择了" + length + "张图片"); //3、回显 $.each(files, function (key, value) { var div = document.createElement("div"), close = document.createElement("span"), img = document.createElement("img"); div.className = "picc"; close.className = "k_close"; var fr = new FileReader(); fr.onload = function () { img.src = this.result; div.style.backgroundImage = 'url(' + this.result + ')'; console.log(this.result); div.appendChild(close); $('.img_look')[0].appendChild(div); } fr.readAsDataURL(value); }) }) $input.removeAttr("id"); var newInput = '<input class="uploadImg test" type="file" name="file" multiple id="file">'; $(this).append($(newInput)); }) }) $('.img_up').on('click', '.k_close', function () { $(this).parent('.picc').remove() }) </script>
比如这个字段名称叫tupian,对应我们的后台的字段,Image类型入库
模块内容发布为例:
1、复制template/pc/default/member/module_post.html到 template/pc/default/member/demo/module_post.html
2、通过url访问发布界面:/index.php?s=member&app=demo&c=home&m=add
3、在新的模板中,首先定义一个隐藏域来此图片字符串
<input name="data[tupian]" id="dr_tupian" type="hidden" value="">
4、处理提交函数
<input type="button" value="提交" onclick="dr_my_post()" class="submit"> <script type="text/javascript"> function dr_my_post() { $('#dr_tupian').val($('.img_look').html()); // 这里把图片上传的编码赋值到隐藏域,然后我们后台处理图片转换 $('#dr_is_draft').val(0);dr_ajax_submit('{dr_now_url()}', 'myform', '2000') } </script>
5、二次开发模块的发布控制器
dayrui/App/Demo/Controllers/Member/Home.php
<?php namespace Phpcmf\Controllers\Member; class Home extends \Phpcmf\Member\Module { // 内容列表 public function index() { $this->_Member_List(); } public function add() { if (IS_POST) { // 表示发布前的处理 $aid = 0; // 这个表示附件的存储策略id,0表示本地存储默认 $img = $_POST['data']['tupian']; $_POST['data']['tupan'] = []; // 接收post过来的图片字符串 if (preg_match_all('/url\((.+)\)/U', $img, $mt)) { foreach ($mt[1] as $t) { $content = str_replace('"', '', $t); // 把base64格式的图片转换为实际图片 if (preg_match('/^(data:\s*image\/(\w+);base64,)/i', $content, $result)) {
$ext = strtolower($result[2]); if (!in_array($ext, ['png', 'jpg', 'jpeg'])) { $this->_json(0, dr_lang('图片格式不正确')); } $content = base64_decode(str_replace($result[1], '', $content)); if (strlen($content) > 30000000) { $this->_json(0, dr_lang('图片太大了')); } // 上传到本地服务器 $rt = \Phpcmf\Service::L('upload')->base64_image([ 'ext' => $ext, 'content' => $content, 'attachment' => \Phpcmf\Service::M('Attachment')->get_attach_info($aid, 0), ]); if (!$rt['code']) { exit(dr_array2string($rt)); } // 附件归档 $att = \Phpcmf\Service::M('Attachment')->save_data($rt['data']); if (!$att['code']) { exit(dr_array2string($att)); } $_POST['data']['tupan'][] = $att['code']; } else { $this->_json(0, dr_lang('图片内容不规范')); } } } } $this->_Member_Add(); } public function edit() { $this->_Member_Edit(); } public function del() { $this->_Member_Del(); } }
6、提交后,后台就可以看到图片内容了
例子是以内容模块为例,表单相关提交方法跟这个类似了
文档最后更新时间:2023-08-10 02:58:09