使用Java Play Framework进行jQuery-File-Upload NetworkError：500
[英]jQuery-File-Upload with Java Play Framework NetworkError: 500
问题描述
im using Java Play Framework and this File-Upload-Plugin: http://blueimp.github.io/jQuery-File-Upload/ . 
我正在使用Java Play Framework和这个File-Upload-Plugin： http ： //blueimp.github.io/jQuery-File-Upload/ 。 After read the documentation http://www.playframework.com/documentation/2.0/JavaFileUpload i used this specific code in my Java Play Controller. 阅读文档http://www.playframework.com/documentation/2.0/JavaFileUpload后，我在Java Play Controller中使用了这个特定的代码。
public static Result upload() {
File file = request().body().asRaw().asFile();
return ok("File uploaded");
}
I've also added this route to my project: 我还将这条路线添加到我的项目中：
POST /upload controllers.Image.upload()
My View-Template: 我的视图 - 模板：
@(scripts: Html)
<!DOCTYPE HTML>
<html>
<head>
<meta charset="utf-8">
<title>jQuery File Upload Example</title>
</head>
<body>
<input id="fileupload" type="file" name="files[]" data-url="/upload">
@scripts
<script>
$(function () {
$('#fileupload').fileupload({
dataType: 'json',
add: function (e, data) {
data.context = $('<p/>').text('Uploading...').appendTo(document.body);
data.submit();
},
done: function (e, data) {
data.context.text('Upload finished.');
}
});
});
</script>
</body>
Now if i upload a image firebug shows me the following error: 现在，如果我上传图像，firebug会显示以下错误：
"NetworkError: 500 Internal Server Error - http://localhost:9000/upload"
The error was caused by this one line in the Controller Upload-action: 该错误是由Controller Upload-action中的这一行引起的：
File file = request().body().asRaw().asFile();
Anyone know a solution? 有人知道解决方案吗？ Thank you for your help. 谢谢您的帮助。
2 个解决方案
解决方案1
1 2013-12-08 23:19:41
I guess you can access your upload files differently. 我想你可以用不同的方式访问你的上传文件。 You can use something like: 您可以使用以下内容：
Http.MultipartFormData body = request().body().asMultipartFormData();
for(Http.MultipartFormData.FilePart part : body.getFiles()){
Logger.debug(part.getFilename());
Logger.debug(part.getKey());
Logger.debug(part.getContentType());
Logger.debug(part.getFile().getName());
Logger.debug(part.getFile().getAbsolutePath());
Logger.debug(String.valueOf(part.getFile().getTotalSpace()));
}
One you have your java.io.File instance you can do whatever you want 你有java.io.File实例，你可以做任何你想做的事
解决方案2
0 2014-05-29 20:30:15
Actually this is my controller part by which i can move the file from my temp folder to the application public folder so that i can use it further. 实际上这是我的控制器部分，通过它我可以将文件从我的临时文件夹移动到应用程序公用文件夹，以便我可以进一步使用它。 the json will be returned as a multipart form data. json将作为多部分表单数据返回。 so we have to use like this. 所以我们必须这样使用。 Hope this solves your problem. 希望这能解决你的问题。
MultipartFormData body = request().body().asMultipartFormData();
FilePart picture = body.getFile("file");
if (picture != null) {
File tempimg = picture.getFile();
Path temp = tempimg.toPath();
Path newFile = new File(Play.application().path().getAbsolutePath()+"/public/uploaded",picture.getFilename()).toPath();
Files.move(temp, newFile);
return ok("File uploaded");
} else {
flash("error", "Missing file");
return badRequest("File Missing");
}
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