Jetty在多部分表单请求上抛出“多部分请求的缺少内容”(Jetty throws “Missing content for multipart request” on multipart form request)

 我正在使用servlet-api 3.0.1（javax.servlet：javax.servlet-api：3.0.1）运行Jetty 9（jetty-9.0.5.v20130815）服务器，我的servlet配置为接受多部分请求。 
 
 web.xml - 
 
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee"
     xmlns:c="http://java.sun.com/jsp/jstl/core"
     xmlns:fmt="http://java.sun.com/jsp/jstl/fmt"
     xmlns:web="http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
     version="3.1" xmlns="http://xmlns.jcp.org/xml/ns/javaee">

<servlet>
    <servlet-name>restapi</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet
    </servlet-class>
    <load-on-startup>1</load-on-startup>
    <multipart-form enable="true" />
    <multipart-config>
        <max-file-size>8428800</max-file-size>
        <max-request-size>8428800</max-request-size>
        <file-size-threshold>1048576</file-size-threshold>
    </multipart-config>
</servlet>
</web-app>
 
 applicationContext.xml - 
 
<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="8000000"/>
</bean>
 
 它实现了一个POST命令，它应该通过HttpServletRequest接收文件上传。 但是当调用request.getParts()时，会发生以下异常： 
 
java.io.IOException: Missing content for multipart request
        at org.eclipse.jetty.util.MultiPartInputStreamParser.parse(MultiPartInputStreamParser.java:493)
        at org.eclipse.jetty.util.MultiPartInputStreamParser.getParts(MultiPartInputStreamParser.java:401)
        at org.eclipse.jetty.server.Request.getParts(Request.java:2077)
        at javax.servlet.http.HttpServletRequestWrapper.getParts(HttpServletRequestWrapper.java:351)
        at javax.servlet.http.HttpServletRequestWrapper.getParts(HttpServletRequestWrapper.java:351)
 
 客户端是使用ASIFormDataRequest的iOS应用程序，但我不认为客户端有问题，因为它曾经使用过Apache commons-fileupload.jar。 我没有切换服务器使用Jetty的多部分支持来接收文件。 
 
 这是请求，由代理拦截 - 
 
POST /mycommand HTTP/1.1
Host: localhost:8080
Proxy-Connection: close
Accept-Encoding: gzip
Content-Type: multipart/form-data; charset=utf-8; boundary=0xKhTmLbOuNdArY-849F4DA3-85DC-46F1-B182-44257808F0B9
Content-Length: 1568
Connection: close

--0xKhTmLbOuNdArY-849F4DA3-85DC-46F1-B182-44257808F0B9
Content-Disposition: form-data; name="param1"

text
--0xKhTmLbOuNdArY-849F4DA3-85DC-46F1-B182-44257808F0B9
Content-Disposition: form-data; name="data"; filename="file"
Content-Type: application/octet-stream

... DATA ...
--0xKhTmLbOuNdArY-849F4DA3-85DC-46F1-B182-44257808F0B9--
 
 有任何想法吗？ 

I'm running Jetty 9 (jetty-9.0.5.v20130815) server with servlet-api 3.0.1 (javax.servlet:javax.servlet-api:3.0.1), my servlet is configured to accept multipart requests.
 
web.xml -
 
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
     xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee"
     xmlns:c="http://java.sun.com/jsp/jstl/core"
     xmlns:fmt="http://java.sun.com/jsp/jstl/fmt"
     xmlns:web="http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
     version="3.1" xmlns="http://xmlns.jcp.org/xml/ns/javaee">

<servlet>
    <servlet-name>restapi</servlet-name>
    <servlet-class>org.springframework.web.servlet.DispatcherServlet
    </servlet-class>
    <load-on-startup>1</load-on-startup>
    <multipart-form enable="true" />
    <multipart-config>
        <max-file-size>8428800</max-file-size>
        <max-request-size>8428800</max-request-size>
        <file-size-threshold>1048576</file-size-threshold>
    </multipart-config>
</servlet>
</web-app>
 
applicationContext.xml -
 
<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="8000000"/>
</bean>
 
It implements a POST command that should receive a file upload through HttpServletRequest. But when request.getParts() is called, this exception occurs:
 
java.io.IOException: Missing content for multipart request
        at org.eclipse.jetty.util.MultiPartInputStreamParser.parse(MultiPartInputStreamParser.java:493)
        at org.eclipse.jetty.util.MultiPartInputStreamParser.getParts(MultiPartInputStreamParser.java:401)
        at org.eclipse.jetty.server.Request.getParts(Request.java:2077)
        at javax.servlet.http.HttpServletRequestWrapper.getParts(HttpServletRequestWrapper.java:351)
        at javax.servlet.http.HttpServletRequestWrapper.getParts(HttpServletRequestWrapper.java:351)
 
The client is an iOS app using ASIFormDataRequest, but I don't think that client has the problem because it used to work with Apache commons-fileupload.jar. I'm not switching the server to use Jetty's multipart support for receiving files.
 
Here's the request, as intercepted by a proxy -
 
POST /mycommand HTTP/1.1
Host: localhost:8080
Proxy-Connection: close
Accept-Encoding: gzip
Content-Type: multipart/form-data; charset=utf-8; boundary=0xKhTmLbOuNdArY-849F4DA3-85DC-46F1-B182-44257808F0B9
Content-Length: 1568
Connection: close

--0xKhTmLbOuNdArY-849F4DA3-85DC-46F1-B182-44257808F0B9
Content-Disposition: form-data; name="param1"

text
--0xKhTmLbOuNdArY-849F4DA3-85DC-46F1-B182-44257808F0B9
Content-Disposition: form-data; name="data"; filename="file"
Content-Type: application/octet-stream

... DATA ...
--0xKhTmLbOuNdArY-849F4DA3-85DC-46F1-B182-44257808F0B9--
 
Any ideas?

原文：https://stackoverflow.com/questions/20613104