2

我希望有人能帮帮忙，

我已经为我的 spring webmvc 应用程序编写了一个客户端，我正在使用 jersey 和 ApacheConnector 的客户端。我需要保留 jsessionid 并且看不到如何使用球衣的 HttpUrlConnector 来做到这一点。我还应该提到，在我需要跟踪会话之前，文件上传服务与 jersey 的 HttpUrlConnector 一起工作。

我知道 spring webmvc 文件上传服务有效，因为我的 web 前端能够上传文件。只是为了完整性，它看起来像这样。

@ResponseBody
private Image onSubmit(@ModelAttribute("uploadedFile") ImageUpload imageUpload) {   
        service.create(imageUpload);
        return new Image();
}

客户端初始化代码如下所示：

clientConfig = new ClientConfig();
connector = new ApacheConnector(clientConfig);
clientConfig.connector(connector);
client = ClientBuilder.newBuilder().withConfig(clientConfig)
                .register(MultiPartFeature.class)
                .register(JacksonJsonProvider.class).build();
target = client.target(url);

我已经注册了 MultiPartFeature 和 JacksonJsonProvider 因为我想使用 jackson 2.x

上传文件的客户端代码如下所示：

File file = new File(fileName);
FormDataMultiPart formDataMultiPart = new FormDataMultiPart();
FormDataBodyPart bodyPart = new FormDataBodyPart("file", file,
                MediaType.APPLICATION_OCTET_STREAM_TYPE);
formDataMultiPart.bodyPart(bodyPart);
response = target
                .path(path)
                .request()
                .post(Entity.entity(formDataMultiPart,
                        formDataMultiPart.getMediaType()), Response.class);

我也尝试过如下代码：

final FileDataBodyPart filePart = new FileDataBodyPart("file", new File(fileName));
         final MultiPart multipart = new FormDataMultiPart()
            .field("foo", "bar")
            .bodyPart(filePart);
response = target
                .path(path)
                .request()
                .post(Entity.entity(multipart,
                        multipart.getMediaType()), Response.class);

哪个更符合文档。

上传文件时，服务器会响应

org.apache.commons.fileupload.FileUploadException: the request was rejected because no multipart boundary was found
at org.apache.commons.fileupload.FileUploadBase$FileItemIteratorImpl.<init>(FileUploadBase.java:990)
at org.apache.commons.fileupload.FileUploadBase.getItemIterator(FileUploadBase.java:310)
at org.apache.commons.fileupload.FileUploadBase.parseRequest(FileUploadBase.java:334)
at org.apache.commons.fileupload.servlet.ServletFileUpload.parseRequest(ServletFileUpload.java:115)
at org.springframework.web.multipart.commons.CommonsMultipartResolver.parseRequest(CommonsMultipartResolver.java:156)
at org.springframework.web.multipart.commons.CommonsMultipartResolver.resolveMultipart(CommonsMultipartResolver.java:139)
at org.springframework.web.servlet.DispatcherServlet.checkMultipart(DispatcherServlet.java:1047)
at org.springframework.web.servlet.DispatcherServlet.doDispatch(DispatcherServlet.java:892)
at org.springframework.web.servlet.DispatcherServlet.doService(DispatcherServlet.java:856)
at org.springframework.web.servlet.FrameworkServlet.processRequest(FrameworkServlet.java:936)
at org.springframework.web.servlet.FrameworkServlet.doPost(FrameworkServlet.java:838)

这似乎是一个相当普遍的问题，我认为这意味着我没有设置边界，所以我在客户端上启用了调试。

DEBUG: org.apache.http.headers - >> POST /api/content/image/upload HTTP/1.1
DEBUG: org.apache.http.headers - >> Content-Type: multipart/form-data
DEBUG: org.apache.http.headers - >> User-Agent: Jersey/2.3.1 (Apache HttpClient 4.3)
DEBUG: org.apache.http.headers - >> Transfer-Encoding: chunked
DEBUG: org.apache.http.headers - >> Host: localhost:8010
DEBUG: org.apache.http.headers - >> Connection: Keep-Alive
DEBUG: org.apache.http.headers - >> Cookie: JSESSIONID=2xl9hgb4zq031jpbrn07ylp10
DEBUG: org.apache.http.headers - >> Cookie2: $Version=1
DEBUG: org.apache.http.wire -  >> "7d[\r][\n]"
DEBUG: org.apache.http.wire -  >> "--Boundary_1_674530318_1380707961372[\r][\n]"
DEBUG: org.apache.http.wire -  >> "Content-Type: application/octet-stream[\r][\n]"
DEBUG: org.apache.http.wire -  >> "Content-Disposition: form-data; name="file"[\r][\n]"
DEBUG: org.apache.http.wire -  >> "[\r][\n]"
DEBUG: org.apache.http.wire -  >> "[\r][\n]"
DEBUG: org.apache.http.wire -  >> "1061[\r][\n]"
DEBUG: org.apache.http.wire -  >> "[0x89]PNG[\r][\n]"
DEBUG: org.apache.http.wire -  >> "[0x1a][\n]"
DEBUG: org.apache.http.wire -  >> "[0x0][0x0][0x0][\r]IHDR[0x0]  -!!!! SNIP you don't want to see this !!!!
DEBUG: org.apache.http.wire -  >> "[\r][\n]"
DEBUG: org.apache.http.wire -  >> "2a[\r][\n]"
DEBUG: org.apache.http.wire -  >> "[\r][\n]"
DEBUG: org.apache.http.wire -  >> "--Boundary_1_674530318_1380707961372--[\r][\n]"
DEBUG: org.apache.http.wire -  >> "[\r][\n]"
DEBUG: org.apache.http.wire -  >> "0[\r][\n]"
DEBUG: org.apache.http.wire -  >> "[\r][\n]"
DEBUG: org.apache.http.wire -  << "HTTP/1.1 500 Server Error[\r][\n]"
DEBUG: org.apache.http.wire -  << "Content-Type: text/html; charset=ISO-8859-1[\r][\n]"
DEBUG: org.apache.http.wire -  << "Cache-Control: must-revalidate,no-cache,no-store[\r][\n]"
DEBUG: org.apache.http.wire -  << "Content-Length: 13979[\r][\n]"
DEBUG: org.apache.http.wire -  << "Server: Jetty(9.0.5.v20130815)[\r][\n]"
DEBUG: org.apache.http.wire -  << "[\r][\n]"
DEBUG: org.apache.http.impl.conn.DefaultClientConnection - Receiving response: HTTP/1.1 500 Server Error
DEBUG: org.apache.http.headers - << HTTP/1.1 500 Server Error
DEBUG: org.apache.http.headers - << Content-Type: text/html; charset=ISO-8859-1
DEBUG: org.apache.http.headers - << Cache-Control: must-revalidate,no-cache,no-store
DEBUG: org.apache.http.headers - << Content-Length: 13979
DEBUG: org.apache.http.headers - << Server: Jetty(9.0.5.v20130815)
DEBUG: org.apache.http.impl.client.DefaultHttpClient - Connection can be kept alive indefinitely
DEBUG: ws.webraw.jsonrest.JsonRestClient - reponse code : 500

我期望看不到 --Boundary 条目。我只能假设在使用 ApacheConnector 时实体编码出了问题。

非常感谢任何帮助！

4

2 回答 2

7

尝试通过post调用来更改调用的第二个参数MultiPartMediaTypes.createFormData()。这应该创建一个MediaType具有配置边界的新实例，该实例将由 MultiPart 编写器拾取。

target
    .path(path)
    .request()
    .post(Entity.entity(multipart,
                    MultiPartMediaTypes.createFormData()), Response.class);
于 2015-06-01T03:14:21.393 回答
2

这是所有 Jersey 连接器实现中的一个已知问题；相关的错误是JERSEY-2123。正在JERSEY-2341中跟踪解决此问题的重构。

当前推荐的解决方法是简单地使用默认实现，ClientBuilder该实现使用java.net.HttpUrlConnection并正确地将所需boundary值添加到Content-Type标头。

于 2014-01-31T03:11:41.483 回答