知道为什么我在运行时遇到这个错误吗?
我正在尝试在Jetty上部署AsyncServlet.
我正在尝试在Jetty上部署AsyncServlet.
java.lang.NoSuchMethodError: javax.servlet.http.HttpServletRequest.startAsync(Ljavax/servlet/ServletRequest;Ljavax/servlet/ServletResponse;)Ljavax/servlet/AsyncContext; at my.server.SlowServlet.doGet(SlowServlet.java:16) at javax.servlet.http.HttpServlet.service(HttpServlet.java:705) at javax.servlet.http.HttpServlet.service(HttpServlet.java:814) at org.eclipse.jetty.servlet.ServletHolder.handle(ServletHolder.java:547) at org.eclipse.jetty.servlet.ServletHandler.doHandle(ServletHandler.java:480) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:119) at org.eclipse.jetty.security.SecurityHandler.handle(SecurityHandler.java:520) at org.eclipse.jetty.server.session.SessionHandler.doHandle(SessionHandler.java:227) at org.eclipse.jetty.server.handler.ContextHandler.doHandle(ContextHandler.java:941) at org.eclipse.jetty.servlet.ServletHandler.doScope(ServletHandler.java:409) at org.eclipse.jetty.server.session.SessionHandler.doScope(SessionHandler.java:186) at org.eclipse.jetty.server.handler.ContextHandler.doScope(ContextHandler.java:875) at org.eclipse.jetty.server.handler.ScopedHandler.handle(ScopedHandler.java:117) at org.eclipse.jetty.server.handler.ContextHandlerCollection.handle(ContextHandlerCollection.java:250) at org.eclipse.jetty.server.handler.HandlerCollection.handle(HandlerCollection.java:149) at org.eclipse.jetty.server.handler.HandlerWrapper.handle(HandlerWrapper.java:110) at org.eclipse.jetty.server.Server.handle(Server.java:345) at org.eclipse.jetty.server.httpconnection.handleRequest(httpconnection.java:441) at org.eclipse.jetty.server.httpconnection$RequestHandler.headerComplete(httpconnection.java:919) at org.eclipse.jetty.http.HttpParser.parseNext(HttpParser.java:582) at org.eclipse.jetty.http.HttpParser.parseAvailable(HttpParser.java:218) at org.eclipse.jetty.server.Asynchttpconnection.handle(Asynchttpconnection.java:51) at org.eclipse.jetty.io.nio.SelectChannelEndPoint.handle(SelectChannelEndPoint.java:586) at org.eclipse.jetty.io.nio.SelectChannelEndPoint$1.run(SelectChannelEndPoint.java:44) at org.eclipse.jetty.util.thread.QueuedThreadPool.runJob(QueuedThreadPool.java:598) at org.eclipse.jetty.util.thread.QueuedThreadPool$3.run(QueuedThreadPool.java:533) at java.lang.Thread.run(Thread.java:680)
我在我的pom.xml中有以下Maven依赖项
<dependency> <groupId>org.eclipse.jetty</groupId> <artifactId>jetty-server</artifactId> <version>${jettyVersion}</version> </dependency> <dependency> <groupId>org.eclipse.jetty</groupId> <artifactId>jetty-servlet</artifactId> <version>${jettyVersion}</version> </dependency> <dependency> <groupId>org.eclipse.jetty</groupId> <artifactId>jetty-servlets</artifactId> <version>${jettyVersion}</version> </dependency> <dependency> <groupId>org.eclipse.jetty</groupId> <artifactId>jetty-webapp</artifactId> <version>${jettyVersion}</version> </dependency>
解决方法
我猜你的服务器使用的是Servlet规范的错误版本. AsyncContext仅在Servlet规范v 3.0之后可用.您可能在开发环境中拥有正确的版本,但您的服务器使用过时的api版本,因此运行时出错.
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