1、前端代码
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<style>
.btn{
display: inline-block;
padding: 5px 10px;
background-color: coral;
color: white;
}
</style>
</head>
<body>
<iframe style="display: none" id="iframe1" name="ifra1"></iframe>
<form id="fm1" action="/upload_img.html" method="POST" enctype="multipart/form-data" target="ifra1">
<input type="file" name="k1" onchange="uploadFile();" />
</form>
<h3>预览</h3>
<div id="preview">
</div>
<script src="/static/js/jquery-3.1.1.js"></script>
<script>
//文件上传控件绑定onchange事件，当有文件上传就触发表单提交
function uploadFile() {
document.getElementById(‘iframe1‘).onload = reloadIframe1;
document.getElementById(‘fm1‘).submit();
}
//取得iframe控件的返回值，并将值取出进行json反序列化，
function reloadIframe1() {
var content = this.contentWindow.document.body.innerHTML;
var obj = JSON.parse(content);
//创建img控件，并将远端的图片地址赋予image。
var tag = document.createElement(‘img‘);
tag.src = obj.data;
$(‘#preview‘).empty().append(tag);
}
</script>
</body>
</html>
2、后端代码
def upload_img(request):
ret={‘status‘:True,‘data‘:None}
obj = request.FILES.get(‘k1‘)
print(obj)
file_path = os.path.join(‘static‘,obj.name)
f = open(file_path,‘wb‘)
for line in obj.chunks():
f.write(line)
f.close()
ret[‘data‘]=file_path
return HttpResponse(json.dumps(ret))
时间： 2024-11-08 22:04:31