我按照手动示例 (LINK) 使用 SpringMVC 编写了一个文件上传代码，它工作正常。
然后，我将客户端改为使用jQuery文件上传
http://blueimp.github.com/jQuery-File-Upload/
为了拥有更强大的客户端(拖放)。
我下载了这个小部件并用它实现了一个 jsp。
但它不起作用。浏览器收到响应 400(错误请求)，tomcat7 没有抛出异常。
我看到了请求的不同: 使用工作的 spring mvc 文档示例请求看起来像 (firebug):
-----------------------------26989305212543489571047641949 Content-Disposition: form-data; name="name"
-----------------------------26989305212543489571047641949 Content-Disposition: form-data; name="file"; filename="content.txt"
Content-Type: text/plain hello
-----------------------------26989305212543489571047641949--
对于使用 jQuery fileupload 默认实现的非工作 jsp，firebug 中的请求看起来像:
-----------------------------205805102810633831841397435868 Content-Disposition: form-data; name="files"; filename="content.txt" Content-Type: text/plain hello
-----------------------------205805102810633831841397435868--
因此，对于 jQuery 非工作版本，更多内容会发送到服务器。某种额外的元数据。这是问题还是我以错误的方式搜索？我根本不是文件上传/多部分方面的专家。
感谢您的帮助。
Spring v3.1.2
Tomcat v7.0
jQuery 1.8
该项目使用 sitemesh(我不认为它有什么不同但是......)
Controller 代码
import java.io.IOException;
import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestMethod;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.multipart.MultipartFile;
@Controller
public class FileUploadController {
@RequestMapping(value = "/form", method = RequestMethod.POST)
public String handleFormUpload(@RequestParam(value="name",required=false) String name,
@RequestParam("file") MultipartFile file) throws IOException {
if (!file.isEmpty()) {
byte[] bytes = file.getBytes();
// store the bytes somewhere
return "redirect:home";
} else {
return "redirect:uploadFailure";
}
System.out.println(file.length);
return "home";
}
}
工作 jsp:
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<html>
<head>
<title>Upload a file please</title>
</head>
<body>
<h1>Please upload a file</h1>
<form method="post" action="form" enctype="multipart/form-data">
<input type="text" name="name"/>
<input type="file" name="file"/>
<input type="submit"/>
</form>
</body>
</html>
非工作 jsp(使用 jQuery):
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ page language="java" contentType="text/html; charset=ISO-8859-1"
pageEncoding="ISO-8859-1"%>
<%@ taglib uri="http://www.opensymphony.com/sitemesh/decorator"
prefix="decorator"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<!DOCTYPE html >
<html>
<head>
<link rel="stylesheet" type="text/css" href="/ReformYourCountry/css/test-style.css" />
<link rel="stylesheet" type="text/css" href="/ReformYourCountry/css/template.css" />
<link rel="stylesheet" type="text/css" href="/ReformYourCountry/css/content.css" />
<!-- Shim to make HTML5 elements usable in older Internet Explorer versions -->
<!--[if lt IE 9]><script src="http://html5shim.googlecode.com/svn/trunk/html5.js"> </script><![endif]-->
<!-- for imageupload page -->
<!-- Force latest IE rendering engine or ChromeFrame if installed -->
<!--[if IE]><meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1"><![endif]-->
<meta charset="utf-8">
<title>jQuery File Upload Demo</title>
<meta name="description" content="File Upload widget with multiple file selection, drag&drop support, progress bar and preview images for jQuery. Supports cross-domain, chunked and resumable file uploads. Works with any server-side platform (Google App Engine, PHP, Python, Ruby on Rails, Java, etc.) that supports standard HTML form file uploads.">
<meta name="viewport" content="width=device-width">
<!-- jQuery UI styles -->
<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.18/themes/base/jquery-ui.css" id="theme">
<!-- jQuery Image Gallery styles -->
<link rel="stylesheet" href="http://blueimp.github.com/jQuery-Image-Gallery/css/jquery.image-gallery.min.css">
<!-- CSS to style the file input field as button and adjust the jQuery UI progress bars -->
<link rel="stylesheet" href="css/jquery.fileupload-ui.css">
<!-- Generic page styles -->
<link rel="stylesheet" href="css/style.css">
<!-- Shim to make HTML5 elements usable in older Internet Explorer versions -->
<!--[if lt IE 9]><script src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script><![endif]-->
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>Insert title here</title>
</head>
<body>
<!-- The file upload form used as target for the file upload widget -->
<form id="fileupload" action="form" method="POST" enctype="multipart/form-data">
<!-- The fileupload-buttonbar contains buttons to add/delete files and start/cancel the upload -->
<div class="row fileupload-buttonbar">
<div class="span7">
<!-- The fileinput-button span is used to style the file input field as button -->
<span class="btn btn-success fileinput-button">
<i class="icon-plus icon-white"></i>
<span>Add files...</span>
<input type="file" name="files" multiple>
</span>
<button type="submit" class="btn btn-primary start">
<i class="icon-upload icon-white"></i>
<span>Start upload</span>
</button>
<button type="reset" class="btn btn-warning cancel">
<i class="icon-ban-circle icon-white"></i>
<span>Cancel upload</span>
</button>
<button type="button" class="btn btn-danger delete">
<i class="icon-trash icon-white"></i>
<span>Delete</span>
</button>
<input type="checkbox" class="toggle">
</div>
<!-- The global progress information -->
<div class="span5 fileupload-progress fade">
<!-- The global progress bar -->
<div class="progress progress-success progress-striped active" role="progressbar" aria-valuemin="0" aria-valuemax="100">
<div class="bar" style="width:0%;"></div>
</div>
<!-- The extended global progress information -->
<div class="progress-extended"> </div>
</div>
</div>
<!-- The loading indicator is shown during file processing -->
<div class="fileupload-loading"></div>
<br>
<!-- The table listing the files available for upload/download -->
<table role="presentation" class="table table-striped"><tbody class="files" data-toggle="modal-gallery" data-target="#modal-gallery"></tbody></table>
</form>
<!-- The template to display files available for upload -->
<script id="template-upload" type="text/x-tmpl">
{% for (var i=0, file; file=o.files[i]; i++) { %}
<tr class="template-upload fade">
<td class="preview"><span class="fade"></span></td>
<td class="name"><span>{%=file.name%}</span></td>
<td class="size"><span>{%=o.formatFileSize(file.size)%}</span></td>
{% if (file.error) { %}
<td class="error" colspan="2"><span class="label label-important">{%=locale.fileupload.error%}</span> {%=locale.fileupload.errors[file.error] || file.error%}</td>
{% } else if (o.files.valid && !i) { %}
<td>
<div class="progress progress-success progress-striped active" role="progressbar" aria-valuemin="0" aria-valuemax="100" aria-valuenow="0"><div class="bar" style="width:0%;"></div></div>
</td>
<td class="start">{% if (!o.options.autoUpload) { %}
<button class="btn btn-primary">
<i class="icon-upload icon-white"></i>
<span>{%=locale.fileupload.start%}</span>
</button>
{% } %}</td>
{% } else { %}
<td colspan="2"></td>
{% } %}
<td class="cancel">{% if (!i) { %}
<button class="btn btn-warning">
<i class="icon-ban-circle icon-white"></i>
<span>{%=locale.fileupload.cancel%}</span>
</button>
{% } %}</td>
</tr>
{% } %}
</script>
<!-- The template to display files available for download -->
<script id="template-download" type="text/x-tmpl">
{% for (var i=0, file; file=o.files[i]; i++) { %}
<tr class="template-download fade">
{% if (file.error) { %}
<td></td>
<td class="name"><span>{%=file.name%}</span></td>
<td class="size"><span>{%=o.formatFileSize(file.size)%}</span></td>
<td class="error" colspan="2"><span class="label label-important">{%=locale.fileupload.error%}</span> {%=locale.fileupload.errors[file.error] || file.error%}</td>
{% } else { %}
<td class="preview">{% if (file.thumbnail_url) { %}
<a href="{%=file.url%}" title="{%=file.name%}" rel="gallery" download="{%=file.name%}"><img src="{%=file.thumbnail_url%}"></a>
{% } %}</td>
<td class="name">
<a href="{%=file.url%}" title="{%=file.name%}" rel="{%=file.thumbnail_url&&'gallery'%}" download="{%=file.name%}">{%=file.name%}</a>
</td>
<td class="size"><span>{%=o.formatFileSize(file.size)%}</span></td>
<td colspan="2"></td>
{% } %}
<td class="delete">
<button class="btn btn-danger" data-type="{%=file.delete_type%}" data-url="{%=file.delete_url%}">
<i class="icon-trash icon-white"></i>
<span>{%=locale.fileupload.destroy%}</span>
</button>
<input type="checkbox" name="delete" value="1">
</td>
</tr>
{% } %}
</script>
<script src="//ajax.googleapis.com/ajax/libs/jquery/1.8.0/jquery.min.js"></script>
<script src="//ajax.googleapis.com/ajax/libs/jqueryui/1.8.23/jquery-ui.min.js"></script>
<!-- The Templates plugin is included to render the upload/download listings -->
<script src="http://blueimp.github.com/JavaScript-Templates/tmpl.min.js"></script>
<!-- The Load Image plugin is included for the preview images and image resizing functionality -->
<script src="http://blueimp.github.com/JavaScript-Load-Image/load-image.min.js"></script>
<!-- The Canvas to Blob plugin is included for image resizing functionality -->
<script src="http://blueimp.github.com/JavaScript-Canvas-to-Blob/canvas-to-blob.min.js"></script>
<!-- jQuery Image Gallery -->
<script src="http://blueimp.github.com/jQuery-Image-Gallery/js/jquery.image-gallery.min.js"></script>
<!-- The Iframe Transport is required for browsers without support for XHR file uploads -->
<script src="js/jquery.iframe-transport.js"></script>
<!-- The basic File Upload plugin -->
<script src="js/jquery.fileupload.js"></script>
<!-- The File Upload file processing plugin -->
<script src="js/jquery.fileupload-fp.js"></script>
<!-- The File Upload user interface plugin -->
<script src="js/jquery.fileupload-ui.js"></script>
<!-- The File Upload jQuery UI plugin -->
<script src="js/jquery.fileupload-jui.js"></script>
<!-- The localization script -->
<script src="js/locale.js"></script>
<!-- The main application script -->
<script src="js/main.js"></script>
<!-- The XDomainRequest Transport is included for cross-domain file deletion for IE8+ -->
<!--[if gte IE 8]><script src="js/cors/jquery.xdr-transport.js"></script><![endif]-->
</body>
</html>
最佳答案
我已经将 jQuery 文件上传小部件与 Spring MVC 一起使用， Controller 代码如下(请注意，处理多部分内容依赖于 apache commons fileupload):
@RequestMapping(value="/project/file", method=POST)
public void addFile(HttpServletRequest request, HttpServletResponse response) throws IOException {
if (!ServletFileUpload.isMultipartContent(request)) {
throw new IllegalArgumentException("Request is not multipart, please 'multipart/form-data' enctype for your form.");
}
ServletFileUpload uploadHandler = new ServletFileUpload(new DiskFileItemFactory());
try {
List<FileItem> items = uploadHandler.parseRequest(request);
for (FileItem item : items) {
if (!item.isFormField()) {
byte [] fileBytes = item.get();
}
} catch(FileUploadException e) {
throw new RuntimeException(e);
}
}
关于java - 使用 spring mvc 上传 jquery 文件 : 400 bad request，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/12057341/