泽西不起作用的文件上传

我无法让Jersey文件上传工作 . 使用Jersey 1.9 . 当它到达服务时，InputStream为null . 我已经尝试过它作为普通表单提交和使用jQuery Form插件的AJAX提交，但无论如何都得到相同的结果 . 也没有记录任何异常，这使得它更加令人沮丧 .

HTML表单

<form id="docCategoryForm" name="docCategoryForm" action="someAction" method="post" enctype="multipart/form-data">
Document
<input type="file" name="fileupload_name" id="fileupload_name" >
<button id="submitButton" type="submit" title="Select to search">Submit</button>
</form>

POM

<dependency>
    <groupId>com.sun.jersey</groupId>
    <artifactId>jersey-json</artifactId>
    <version>1.9</version>
    <scope>provided</scope>
</dependency>
<dependency>
    <groupId>com.sun.jersey.contribs</groupId>
    <artifactId>jersey-multipart</artifactId>
    <version>1.9</version>
    <scope>provided</scope>
</dependency>

Eclipse中的依赖关系层次结构显示mimepull.jar 1.6也被引入 .

REST服务

@ResourceFilters({RequestLoggingResourceFilter.class})
@POST
@Path(PATH_UPLOAD)
@Consumes(MediaType.MULTIPART_FORM_DATA)
@Produces(MediaType.APPLICATION_JSON)
public MyResponseObject uploadDocument(@FormDataParam("fileupload_name") InputStream file) {
  // Some code
}

如果我添加@FormDataParam（“fileupload_name”）FormDataContentDisposition fileDetail，我就可以了，但是InputStream仍为null .

这是尝试上传简单文本文件后的请求 . 对我来说没问题 .

* Server in-bound request
> POST http://localhost:7001/webmodule/app/contmang/page/docCategory
/uploadDocument
> Host: localhost:7001
> Connection: keep-alive
> Content-Length: 209
> Accept: */*
> Origin: http://localhost:7001
> X-Requested-With: XMLHttpRequest
> User-Agent: Mozilla/5.0 (Windows NT 6.1; WOW64) AppleWebKit/537.36(KHTML, like Gecko) Chrome/29.0.1547.57 Safari/537.36
> Content-Type: multipart/form-data; boundary=----WebKitFormBoundaryl0Uv1KBFoVtOpHto
> Referer: http://localhost:7001/webmodule/app/contmang/page/docCategory
> Accept-Encoding: gzip,deflate,sdch
> Accept-Language: en-US,en;q=0.8
> Cookie: JSESSIONID_HEARS=yWHQSpFbZnh1Jfp6hmn4xmfyxxTpybnvTTxsTykyqXzQyt207wym!-153888503
>  Entity:------WebKitFormBoundaryl0Uv1KBFoVtOpHto
Content-Disposition: form-data; name="fileupload_name"; filename="test.txt"
Content-Type: text/plain

Hello, World!!

------WebKitFormBoundaryl0Uv1KBFoVtOpHto--