spring - Apache HttpClient 向 Spring @Controller 类进行多部分 POST

Question

好像有几个帖子，例如here询问如何在 Java 中使用 Apache Commons HTTPClient 库对 Servlet 执行 POST。然而，我似乎在使用带注释的 Spring Controller 方法做同样的事情时遇到了一些问题。我尝试了一些方法，但从服务器收到了 HTTP 401 错误请求响应。任何这样做的例子将不胜感激。

编辑:我尝试使用的代码:

//Server Side (Java)
@RequestMapping(value = "/create", method = RequestMethod.POST)
public void createDocument(@RequestParam("userId") String userId,
                           @RequestParam("file") MultipartFile file, HttpServletResponse response) {
    // Do some stuff                            
}

//Client Side (Groovy)
    void processJob(InputStream stream, String remoteAddress) {
    HttpClient httpclient = new DefaultHttpClient()
    httpclient.getParams().setParameter(CoreProtocolPNames.PROTOCOL_VERSION, HttpVersion.HTTP_1_1)
    HttpPost httppost = new HttpPost("http://someurl/rest/create")

    MultipartEntity mpEntity = new MultipartEntity(HttpMultipartMode.BROWSER_COMPATIBLE)
    InputStreamBody uploadFilePart = new InputStreamBody(stream, 'application/octet-stream', 'test.file')
    mpEntity.addPart('file', uploadFilePart)
    mpEntity.addPart('userId', new StringBody('testUser'))
    httppost.setEntity(mpEntity)

    HttpResponse response = httpclient.execute(httppost);
    println(response.statusLine)
}

在服务器的响应中仍然收到 400 Bad Request。

Answer 1

当它表现出无能时，我讨厌回答我自己的问题，但事实证明代码很好，这个特定的 Controller 没有在其 servlet-context.xml 文件中定义 CommonsMultipartResolver (多个 DispatcherServlets...长话短说: ()

这是我为其添加的内容:

<!-- ========================= Resolver DEFINITIONS ========================= -->
<bean id="multipartResolver"
        class="org.springframework.web.multipart.commons.CommonsMultipartResolver">

    <!-- one of the properties available; the maximum file size in bytes -->
    <property name="maxUploadSize" value="50000000"/>
</bean>