scala 上传的文件只包含“WebKitFormBoundary”
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Uploaded file only contains "WebKitFormBoundary"
提问by bad at scala
I don't really know what's going on here. Every time I try to upload a file, all the file contains is:
我真的不知道这里发生了什么。每次我尝试上传文件时，所有文件都包含：
------WebKitFormBoundaryJ0uWMNv89fcUsC1t--
------WebKitFormBoundaryJ0uWMNv89fcUsC1t--
I have searched for the past 2 days for some sort of explanation, but I am just going in circles. I have no idea why this is happening.
过去 2 天我一直在寻找某种解释，但我只是在兜兜转转。我不知道为什么会这样。
Form:
形式：
<form id="upload-file" ecntype="multipart/form-data">
<input name="picture" type="file">
<input type="button" value="Upload" id="upload-button" />
</form>
Javascript:
Javascript：
$('#upload-button').click(function(e){
e.preventDefault();
var formData = new FormData($('#upload-file'));
$.ajax({
url: '/image',
type: 'POST',
xhr: function() {
var myXhr = $.ajaxSettings.xhr();
if(myXhr.upload){
myXhr.upload.addEventListener('progress',progressHandlingFunction, false);
}
return myXhr;
},
data: formData,
cache: false,
// contentType: false,
processData: false
});
});
Controller:
控制器：
def image = Action(parse.temporaryFile) { request =>
request.body.moveTo(new File("/tmp/picture"))
Ok("File uploaded")
}
采纳答案by bad at scala
The problem was occuring in the Javascript, not the Scala. I was not referencing the form elements improperly.
问题出在 Javascript 中，而不是 Scala 中。我没有错误地引用表单元素。
var formData = new FormData($('#upload-file')[0]);
However, I also had problems with parse.temporaryFileand it was not properly storing the file using the code above. When I inspected the stored files in a text editor, I noticed it still had the ------WebKitFormBoundaryJ0uWMNv89fcUsC1t--stuff at the beginning of the file, followed by the form information, then followed by the file bytes.
但是，我也遇到了问题，parse.temporaryFile并且使用上面的代码没有正确存储文件。当我在文本编辑器中检查存储的文件时，我注意到------WebKitFormBoundaryJ0uWMNv89fcUsC1t--文件开头仍然有内容，然后是表单信息，然后是文件字节。
To fix this, I just used the default method for multipartform upload as per the Play Documentation, and it worked perfectly.
为了解决这个问题，我只是按照Play 文档使用了默认的 multipartform 上传方法，它运行良好。
def image = Action(parse.multipartFormData) { request =>
request.body.file("picture").map { picture =>
val filename = picture.filename
picture.ref.moveTo(new File(s"/tmp/picture/$filename"))
Ok("ok")
}.getOrElse {
InternalServerError("file upload error")
}
}
