uni-app实现文件上传(h5方式)

哇呀呀 發表於 2020-1-8 14:56:00

1.嵌入H5页面，需要采用web-view标签，如下：
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<pre><web-view src="/hybrid/html/index.html" @message="handleMessage"></web-view></pre>
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注意：
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<li>h5页面必须在项目目录：/hybrid/html/下面，因为这样uni-app才不会进行编译</li>
<li>@message事件是h5页面向应用发送数据的回调<img id="uploading_image_33898" src="https://common.cnblogs.com/images/loading.gif" alt="">
 <img src="https://img2018.cnblogs.com/i-beta/1858331/202001/1858331-20200108145129250-1162658841.png" alt="">
 
 2.h5页面代码：
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<div class="cnblogs_code">
<!DOCTYPE html> <html lang="zh"> <head> <meta charset="UTF-8"> <meta name="viewport" content="width=device-width, initial-scale=1.0"> <meta http-equiv="X-UA-Compatible" content="ie=edge"> <title>上传文件</title> <style> *{ margin: 0; padding: 0; } .head-btn{ text-align: center; margin-top: 50px; } .file { position: relative; display: inline-block; background: #D0EEFF; border: 1px solid #99D3F5; border-radius: 10px; padding: 24px 50px; overflow: hidden; color: #1E88C7; text-decoration: none; text-indent: 0; line-height: 20px; font-size: 40px; } .file input { position: absolute; font-size: 200px; right: 0; top: 0; opacity: 0; } .file:hover { background: #AADFFD; border-color: #78C3F3; color: #004974; text-decoration: none; } .determine{ color: #FFFFFF; background-color: #007AFF; display: inline-block; font-size: 20px; border-radius: 5px; padding: 8px 24px; } .showFileName{ display: inline-block; height: 30px; min-width: 300px; } .btn { display: block; margin: 20px auto; padding: 5px; background-color: #007aff; border: 0; color: #ffffff; height: 40px; width: 200px; border-radius: 5px; } .btn1 { display: block; margin: 20px auto; padding: 5px; background-color: #007aff; border: 0; color: #ffffff; height: 40px; width: 200px; border-radius: 5px; } .btn-red { background-color: #dd524d; } .btn-yellow { background-color: #f0ad4e; } .desc { padding: 10px; color: #999999; } .text{ background-color: #007AFF; text-align: center; font-size: 18px; color: white; height: 45px; } .text-in{ padding-top: 10px; } .body{ background-image: url(../../static/timg.jpg); } </style> </head> <body class="body"> <div class="text"> <div class="text-in"> 文件上传 </div> </div> <div class="head-btn"> <form action="" method="post"> <a href="javascript:;" class="file">选择文件 <input type="file" name="uploadFile" id="uploadFile" > </a> </form> </div> <div> <button class="btn" type="button" data-action="redirectTo">确定</button> <button class="btn1" type="button" data-action="navigateBack">取消上传</button> </div> <script src="./js/jQuery1_10_2.js"></script> <script type="text/javascript" src="https://js.cdn.aliyun.dcloud.net.cn/dev/uni-app/uni.webview.1.5.2.js"></script> <script> console.log("转检编号："+getQuery('id')); //转检编号 //取url中的参数值 function getQuery(id) { // 正则：[找寻'&' + 'url参数名字' = '值' + '&']（'&'可以不存在） let reg = new RegExp("(^|&)"+ id +"=([^&]*)(&|$)"); let r = window.location.search.substr(1).match(reg); //console.log("r="+r); if(r != null) { // 对参数值进行解码 return decodeURIComponent(r); } return null; } $(".file").on("change", "input", function() { let filePath = $(this).val(); // console.log(filePath); localStorage.setItem("fileAddress", filePath); let lastname = localStorage.getItem("fileAddress"); if (lastname != "") { $(".showFileName").html(lastname); } else { $(".showFileName").html(""); } }); $('.btn').click(function(evt) { var fileUrl; var formdata = new FormData(); // 创建一个form类型的数据 formdata.append("files",$("#uploadFile").files); // 获取上传文件的数据 formdata.append("operate","UpLoadFile"); // 操作码 formdata.append("name","name"); //console.log("files："+formdata.get("files") + ",name:" + formdata.get("name")) console.log("begin") $.ajax({ url: 'http://47.97.163.146:8080/Controler.ashx', type: "POST", async:false, //同步请求，否则内部嵌套的ajax不会运行 processData: false, contentType: false, data:formdata, dataType:"json", success: function(data) { //更新数据库添入附件的url console.log("data:" + JSON.stringify(data)) fileUrl = data.url; // var formdata1 = new FormData(); // 创建一个form类型的数据 // formdata1.append("operate","UploadFileZJ"); // 操作码 // formdata1.append("ID",getQuery('id')); // formdata1.append("url",fileUrl); console.log("url地址："+fileUrl); console.log("转检编号："+getQuery('id')); //console.log("url："+formdata1.get("url") + ",ID:" + formdata1.get("ID")) //查看url和转检id $.ajax({ url: 'http://47.97.163.146:8080/Controler.ashx', type: "POST", data:{operate:"UploadFileZJ",ID:getQuery('id'),url:fileUrl}, dataType:"json", success: function(data){ console.log("更新成功") }, error: function(err) { console.log(555) console.log("更新失败的"); } }) console.log("这是请求成功的"); }, error: function(err) { console.log("这是请求失败的"); } }); console.log("end") var target = evt.target; if (target.tagName === 'BUTTON') { var action = target.getAttribute('data-action'); if (action == 'redirectTo') { uni.redirectTo({ url: '/pages/index/index', success:function (d) { console.log("跳转成功"); }, fail:function(e){ console.log(e); }, }); } } }); //取消文件上传 $('.btn1').click(function(evt) { var target = evt.target; if (target.tagName === 'BUTTON') { var action = target.getAttribute('data-action'); if (action == 'navigateBack') { uni.navigateBack({ delta: 1 }); } } }); </script> </body> </html>
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样式图：<img src="https://img2018.cnblogs.com/i-beta/1858331/202001/1858331-20200108145337275-1946263109.png" alt="">
 
 
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来源：https://www.cnblogs.com/lbz6/p/12166664.html

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uni-app实现文件上传(h5方式)