谷歌应用引擎，Ajax，文件上传，-Googleappengine,Ajax,fileupload,

1  

and now simple image upload here:

现在简单的图片上传到这里：

HTML

HTML

 name: 


 file: 


        

JQUERY

JQUERY

$(document).ready(function() 
{ 
$('.submit').on('click', function() 
{
if($(".name").val()==""){
$(".name").val("Enter Name Here")
}
else { 
var s = $(".name").val();
var n = $(".imageform").attr("action");
$(".imageform").attr("action", function() {
return s+n;
}
$("#callback").html('Uploading.....');
$(".imageform").ajaxForm(
{
target: '#callback'
}).submit();
}
});
});

also include this link in head:

还包括这个链接：

hey man all the text which will echo in php file will be shown in #callback. So, if you want to preview image please echo there html and do not remove that action=/form/index.php?name= and also in php file type $name=$_GET['name'];

嘿，所有将在php文件中回显的文本将显示在#callback中。所以，如果你想要预览图像，请回显那里的html，不要删除那个动作= / form / index.php？name =和php文件类型$ name = $ _ GET ['name'];

0  

I came up with the following code. But, strangely, it worked sometimes, other times it didn't. When it failed, the error message displayed in Firebug was "ReferenceError: $ is not defined". Can somebody tell me what the problem is and if this is a correct solution? Thanks.

我想出了以下代码。但是，奇怪的是，它有时会起作用，有时却没有。失败时，Firebug中显示的错误消息是“ReferenceError：$未定义”。有人能告诉我问题是什么，以及这是否是正确的解决方案？谢谢。

$(document).ready(function() { 
    // bind 'myForm' and provide a simple callback function 
    $('#myForm').ajaxForm(function(returnData) {
        $('#content').html(returnData)
    }); 
});