1 <!DOCTYPE html> 2 <html lang="en"> 3 <head> 4 <meta charset="UTF-8"> 5 <title>Js实现文件上传功能</title> 6 <script src="https://cdn.bootcss.com/jquery/3.3.1/jquery.js"></script> 7 <style> 8 .a-upload { 9 position: relative; 10 display: inline-block; 11 background: #D0EEFF; 12 border: 1px solid #99D3F5; 13 border-radius: 4px; 14 padding: 4px 12px; 15 overflow: hidden; 16 color: #1E88C7; 17 text-decoration: none; 18 text-indent: 0; 19 line-height: 20px; 20 } 21 .a-upload input { 22 position: absolute; 23 font-size: 100px; 24 right: 0; 25 top: 0; 26 opacity: 0; 27 } 28 .a-upload:hover { 29 background: #AADFFD; 30 border-color: #78C3F3; 31 color: #004974; 32 text-decoration: none; 33 } 34 </style> 35 </head> 36 <body> 37 <form method="post" 38 enctype="multipart/form-data" 39 id="upload"> 40 <a href="javascript:;" id="pic" class="a-upload"> 41 <input type="file" 42 name="file" 43 > 44 点击这里上传文件 45 </a> 46 <input type="button" value="提交" onclick="uploadPic)"> 47 <span class="showUrl"></span> 48 <img src="" alt="" class="showPic"> 49 </form> 50 </body> 51 <script> 52 function uploadPic) { 53 var form = document.getElementById'upload') 54 var formData = new FormDataform); 55 $.ajax{ 56 url:"https://sscpre.boe.com/v1/medical-console/medical/file/upload", 57 type:'post', 58 data:formData, 59 processData:false, 60 success:function res) { 61 ifres){ 62 alert'上传成功') 63 } 64 $'#pic').val''); 65 $".showUrl").htmlres); 66 $".showPic").attr"src",res); 67 }, 68 error:functionerr){ 69 alert'网络失败，请稍后再试',err) 70 } 71 }) 72 } 73 </script> 74 </html>