"/> ">

Home >Web Front-end >JS Tutorial >Analysis of problems encountered when submitting images in form forms

Analysis of problems encountered when submitting images in form forms

零下一度
零下一度Original
2018-05-14 11:49:192107browse

Question:

When I was working on a project recently, I encountered the need to upload pictures, and get the return information without jumping

Ideas:

1 . Use ajax to send asynchronous requests. After many tests, it finally failed

2. iframe prohibits jump (not tried)

3. Modify the request submission logic in the form tag

Implementation: (Idea 3)

1. html code:

 1 <!DOCTYPE html> 
 2 <html lang="en"> 
 3 <head> 
 4   <meta charset="UTF-8"> 
 5   <meta name="viewport" content="width=device-width, initial-scale=1,maximum-scale=1,user-scalable=no"> 
 6   <meta name="apple-mobile-web-app-capable" content="yes"> 
 7   <meta name="apple-mobile-web-app-status-bar-style" content="black"> 
 8   <meta name="format-detection" content="telephone=no"> 
 9   <meta http-equiv="Expires" content="-1">
 10   <meta http-equiv="Cache-Control" content="no-cache">
 11   <meta http-equiv="Pragma" content="no-cache">
 12   <title>上传赛事气象新闻</title>
 13   <link rel="stylesheet" href="css/uploadnews.css?1.1.11">
 14   <script src="js/rem.js?1.1.11"></script>
 15 </head>
 16 <body>
 17   <p class="upload">
 18     <h1>上传赛事气象新闻</h1>
 19     <p class="content">
 20       <p class="label">标题:</p>
 21       <input type="text" name="title" id="title">
 22       <p class="label">内容:</p>
 23       <textarea id="detail"></textarea>
 24       <p class="label">图片:</p>
 25      <form  class="fupload" method="POST"  action="http://tianjinqixiang.tianqi.cn:8080/tjqyh/testUploadFiles"  enctype="multipart/form-data" >
 26         <input type="submit" value="上传" class="upload_button">
 27         <br>
 28         <input type="file" name="file" value="选择图片" class="choose_img">
 29         <br>
 30         <input type="file" name="file" value="选择图片" class="choose_img">
 31         <br>
 32         <input type="file" name="file" value="选择图片" class="choose_img">
 33         <br>
 34         <input type="file" name="file" value="选择图片" class="choose_img">
 35       </form>
 36       <input type="button" value="提交" id="upButton">
 37     </p>
 38   </p>
 39 </body>
 40 </html>
 41 <script src="js/jquery-1.10.1.min.js?1.1.11"></script>
 42 <script>
 43 var imgURL = '';
 44 // 表单提交不进行跳转获取返回数据
 45 $('form').submit(function (event) {
 46   event.preventDefault();
 47   var form = $(this);
 48   if (!form.hasClass('fupload')) {
 49     //普通表单
 50     $.ajax({
 51       type: form.attr('method'),
 52       url: form.attr('action'),
 53       data: form.serialize()
 54     }).success(function () {
 55       
 56     }).fail(function (jqXHR, textStatus, errorThrown) {
 57       //错误信息
 58     });
 59   }
 60   else {
 61     // mulitipart form,如文件上传类
 62     var formData = new FormData(this);
 63     $.ajax({
 64       type: form.attr('method'),
 65       url: form.attr('action'),
 66       data: formData,
 67       mimeType: "multipart/form-data",
 68       contentType: false,
 69       cache: false,
 70       processData: false
 71     }).success(function (yy) {
 72       alert('上传成功')
 73       imgURL = yy
 74     }).fail(function (jqXHR, textStatus, errorThrown) {
 75       //错误信息
 76     });
 77   };
 78 });
 79 $("#upButton").click(function(){
 80   upMessage(imgURL)
 81 })
 82 function upMessage(imgdata){
 83   var title = $('#title').val()
 84   var content = $('#detail').val()
 85   window.location.href='./userInfo/newseditor?title='+title+'&content='+content+'&sitepng='+imgdata
 86 }
 87 // http://127.0.0.1:8080/userInfo/newseditor?title=气象新闻测试周刊&content=今天晴转龙卷风&sitepng=/home/wangxinyu/news/11B01_red.png88 </script>

View Code

2. Other style files are not summarized here.

The above is the detailed content of Analysis of problems encountered when submitting images in form forms. For more information, please follow other related articles on the PHP Chinese website!

Statement:
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn