我正在编写用于文件传输的处理程序。该请求是多部分HTTP消息。该消息是正确的-已在其他服务器上进行了测试。
问题是在getParts()调用上出现“ java.lang.IllegalStateException:servlet的无多部分配置”。
测试代码:
@SuppressWarnings("serial")
@MultipartConfig
@WebServlet(urlPatterns={"/upload"}, name="upload")
public class FilesServlet extends HttpServlet
{
@Override
protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException
{
resp.setContentType("text/plain");
PrintWriter out = resp.getWriter();
int i=0;
for(Part part: req.getParts())
{
out.printf("Got part: name=%s, size=%d%n",part.getName(), part.getSize());
part.write(String.format("part-%02d.dat",i++));
}
}
}
例外:
java.lang.IllegalStateException: No multipart config for servlet
at org.eclipse.jetty.server.Request.getParts(Request.java:2327)
at org.eclipse.jetty.server.Request.getParts(Request.java:2314)
at com.rad.server.servlet.FilesServlet.doPost(FilesServlet.java:31)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:707)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:790)
at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:860)
at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:535)
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:188)
at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:1595)
at org.eclipse.jetty.server.handler.ScopedHandler.nextHandle(ScopedHandler.java:188)
at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:1253)
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:168)
at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:473)
at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:1564)
at org.eclipse.jetty.server.handler.ScopedHandler.nextScope(ScopedHandler.java:166)
at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:1155)
at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:141)
at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:132)
at org.eclipse.jetty.server.Server.handle(Server.java:530)
at org.eclipse.jetty.server.HttpChannel.handle(HttpChannel.java:347)
at org.eclipse.jetty.server.HttpConnection.onFillable(HttpConnection.java:256)
at org.eclipse.jetty.io.AbstractConnection$ReadCallback.succeeded(AbstractConnection.java:279)
at org.eclipse.jetty.io.FillInterest.fillable(FillInterest.java:102)
at org.eclipse.jetty.io.ChannelEndPoint$2.run(ChannelEndPoint.java:124)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.doProduce(EatWhatYouKill.java:247)
at org.eclipse.jetty.util.thread.strategy.EatWhatYouKill.produce(EatWhatYouKill.java:140)
at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:708)
at org.eclipse.jetty.util.thread.QueuedThreadPool$2.run(QueuedThreadPool.java:626)
at java.lang.Thread.run(Thread.java:745)
罐子是:jetty-server-9.4.8和javax-servlet-api-3.10。
这是怎么了?
答案 0 :(得分:1)
实际上,我没有发现为什么@MultipartConfig注释对我不起作用,但是我在i-net上发现了一种可以正常工作的解决方法:
NULL
我认为该解决方案可能对遇到此类问题的开发人员有用
答案 1 :(得分:0)
为什么在将servlet映射到路径时不进行配置?
handler.addServlet(UploadServlet.class, "/upload/*")
.getRegistration().setMultipartConfig(
new MultipartConfigElement("./tmp")
);
向该servlet发送的每个请求都将使用该属性进行充实