老师，请问ajax这种情况是怎么回事

我之前的ajax项目可以正常运行，但是今天打开无法正常运行了

控制台显示如下：

D:\Environment\Java\apache-tomcat-8.5.57-windows-x64\apache-tomcat-8.5.57\bin\catalina.bat run

[2020-09-13 10:04:35,067] Artifact ajax:war exploded: Waiting for server connection to start artifact deployment...

Using CATALINA_BASE: "C:\Users\15847\.IntelliJIdea2019.3\system\tomcat\Tomcat_8_5_57_ajax"

Using CATALINA_HOME: "D:\Environment\Java\apache-tomcat-8.5.57-windows-x64\apache-tomcat-8.5.57"

Using CATALINA_TMPDIR: "D:\Environment\Java\apache-tomcat-8.5.57-windows-x64\apache-tomcat-8.5.57\temp"

Using JRE_HOME: "D:\Environment\Java\jdk1.8.0_162"

Using CLASSPATH: "D:\Environment\Java\apache-tomcat-8.5.57-windows-x64\apache-tomcat-8.5.57\bin\bootstrap.jar;D:\Environment\Java\apache-tomcat-8.5.57-windows-x64\apache-tomcat-8.5.57\bin\tomcat-juli.jar"

Connected to the target VM, address: '127.0.0.1:58190', transport: 'socket'

13-Sep-2020 10:04:36.100 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Server.服务器版本: Apache Tomcat/8.5.57

13-Sep-2020 10:04:36.106 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log 服务器构建: Jun 30 2020 21:49:10 UTC

13-Sep-2020 10:04:36.106 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log 服务器版本号(: 8.5.57.0

13-Sep-2020 10:04:36.106 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log 操作系统名称: Windows 10

13-Sep-2020 10:04:36.106 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log OS.版本: 10.0

13-Sep-2020 10:04:36.106 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log 架构: amd64

13-Sep-2020 10:04:36.106 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Java 环境变量: D:\Environment\Java\jdk1.8.0_162\jre

13-Sep-2020 10:04:36.106 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log Java虚拟机版本: 1.8.0_162-b12

13-Sep-2020 10:04:36.106 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log JVM.供应商: Oracle Corporation

13-Sep-2020 10:04:36.106 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_BASE: C:\Users\15847\.IntelliJIdea2019.3\system\tomcat\Tomcat_8_5_57_ajax

13-Sep-2020 10:04:36.106 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_HOME: D:\Environment\Java\apache-tomcat-8.5.57-windows-x64\apache-tomcat-8.5.57

13-Sep-2020 10:04:36.106 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log 命令行参数：-Dfile.encoding=UTF-8

13-Sep-2020 10:04:36.106 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log 命令行参数：-Djava.util.logging.config.file=C:\Users\15847\.IntelliJIdea2019.3\system\tomcat\Tomcat_8_5_57_ajax\conf\logging.properties

13-Sep-2020 10:04:36.107 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log 命令行参数：-Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager

13-Sep-2020 10:04:36.107 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log 命令行参数：-agentlib:jdwp=transport=dt_socket,address=127.0.0.1:58190,suspend=y,server=n

13-Sep-2020 10:04:36.107 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log 命令行参数：-javaagent:C:\Users\15847\.IntelliJIdea2019.3\system\captureAgent\debugger-agent.jar

13-Sep-2020 10:04:36.107 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log 命令行参数：-Dcom.sun.management.jmxremote=

13-Sep-2020 10:04:36.107 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log 命令行参数：-Dcom.sun.management.jmxremote.port=1099

13-Sep-2020 10:04:36.107 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log 命令行参数：-Dcom.sun.management.jmxremote.ssl=false

13-Sep-2020 10:04:36.107 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log 命令行参数：-Dcom.sun.management.jmxremote.password.file=C:\Users\15847\.IntelliJIdea2019.3\system\tomcat\Tomcat_8_5_57_ajax\jmxremote.password

13-Sep-2020 10:04:36.107 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log 命令行参数：-Dcom.sun.management.jmxremote.access.file=C:\Users\15847\.IntelliJIdea2019.3\system\tomcat\Tomcat_8_5_57_ajax\jmxremote.access

13-Sep-2020 10:04:36.107 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log 命令行参数：-Djava.rmi.server.hostname=127.0.0.1

13-Sep-2020 10:04:36.107 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log 命令行参数：-Djdk.tls.ephemeralDHKeySize=2048

13-Sep-2020 10:04:36.107 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log 命令行参数：-Djava.protocol.handler.pkgs=org.apache.catalina.webresources

13-Sep-2020 10:04:36.107 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log 命令行参数：-Dignore.endorsed.dirs=

13-Sep-2020 10:04:36.107 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log 命令行参数：-Dcatalina.base=C:\Users\15847\.IntelliJIdea2019.3\system\tomcat\Tomcat_8_5_57_ajax

13-Sep-2020 10:04:36.110 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log 命令行参数：-Dcatalina.home=D:\Environment\Java\apache-tomcat-8.5.57-windows-x64\apache-tomcat-8.5.57

13-Sep-2020 10:04:36.110 信息 [main] org.apache.catalina.startup.VersionLoggerListener.log 命令行参数：-Djava.io.tmpdir=D:\Environment\Java\apache-tomcat-8.5.57-windows-x64\apache-tomcat-8.5.57\temp

13-Sep-2020 10:04:36.110 信息 [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent 使用APR版本[1.7.0]加载了基于APR的Apache Tomcat本机库[1.2.24]。

13-Sep-2020 10:04:36.110 信息 [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent APR功能：IPv6[true]、sendfile[true]、accept filters[false]、random[true]。

13-Sep-2020 10:04:36.110 信息 [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent APR/OpenSSL配置：useAprConnector[false]，useOpenSSL[true]

13-Sep-2020 10:04:36.115 信息 [main] org.apache.catalina.core.AprLifecycleListener.initializeSSL OpenSSL成功初始化 [OpenSSL 1.1.1g 21 Apr 2020]

13-Sep-2020 10:04:36.224 信息 [main] org.apache.coyote.AbstractProtocol.init 初始化协议处理器 ["http-nio-80"]

13-Sep-2020 10:04:36.239 信息 [main] org.apache.tomcat.util.net.NioSelectorPool.getSharedSelector Using a shared selector for servlet write/read

13-Sep-2020 10:04:36.253 信息 [main] org.apache.catalina.startup.Catalina.load Initialization processed in 491 ms

13-Sep-2020 10:04:36.295 信息 [main] org.apache.catalina.core.StandardService.startInternal 正在启动服务[Catalina]

13-Sep-2020 10:04:36.295 信息 [main] org.apache.catalina.core.StandardEngine.startInternal Starting Servlet Engine: Apache Tomcat/8.5.57

13-Sep-2020 10:04:36.305 信息 [main] org.apache.coyote.AbstractProtocol.start 开始协议处理句柄["http-nio-80"]

13-Sep-2020 10:04:36.317 信息 [main] org.apache.catalina.startup.Catalina.start Server startup in 64 ms

Connected to server

[2020-09-13 10:04:36,645] Artifact ajax:war exploded: Artifact is being deployed, please wait...

13-Sep-2020 10:04:36.786 警告 [RMI TCP Connection(5)-127.0.0.1] org.apache.tomcat.util.descriptor.web.WebXml.setVersion 未知版本字符串 [4.0]。将使用默认版本。

13-Sep-2020 10:04:36.995 严重 [RMI TCP Connection(5)-127.0.0.1] org.apache.catalina.core.ContainerBase.addChildInternal ContainerBase.addChild: start:

org.apache.catalina.LifecycleException: 无法启动组件[StandardEngine[Catalina].StandardHost[localhost].StandardContext[/ajax_war_exploded]]

at org.apache.catalina.util.LifecycleBase.handleSubClassException(LifecycleBase.java:440)

at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:198)

at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:743)

at org.apache.catalina.core.ContainerBase.addChild(ContainerBase.java:719)

at org.apache.catalina.core.StandardHost.addChild(StandardHost.java:705)

at org.apache.catalina.startup.HostConfig.manageApp(HostConfig.java:1719)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:498)

at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:286)

at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)

at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)

at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:479)

at org.apache.catalina.mbeans.MBeanFactory.createStandardContext(MBeanFactory.java:428)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:498)

at org.apache.tomcat.util.modeler.BaseModelMBean.invoke(BaseModelMBean.java:286)

at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.invoke(DefaultMBeanServerInterceptor.java:819)

at com.sun.jmx.mbeanserver.JmxMBeanServer.invoke(JmxMBeanServer.java:801)

at com.sun.jmx.remote.security.MBeanServerAccessController.invoke(MBeanServerAccessController.java:468)

at javax.management.remote.rmi.RMIConnectionImpl.doOperation(RMIConnectionImpl.java:1468)

at javax.management.remote.rmi.RMIConnectionImpl.access$300(RMIConnectionImpl.java:76)

at javax.management.remote.rmi.RMIConnectionImpl$PrivilegedOperation.run(RMIConnectionImpl.java:1309)

at java.security.AccessController.doPrivileged(Native Method)

at javax.management.remote.rmi.RMIConnectionImpl.doPrivilegedOperation(RMIConnectionImpl.java:1408)

at javax.management.remote.rmi.RMIConnectionImpl.invoke(RMIConnectionImpl.java:829)

at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)

at java.lang.reflect.Method.invoke(Method.java:498)

at sun.rmi.server.UnicastServerRef.dispatch(UnicastServerRef.java:361)

at sun.rmi.transport.Transport$1.run(Transport.java:200)

at sun.rmi.transport.Transport$1.run(Transport.java:197)

at java.security.AccessController.doPrivileged(Native Method)

at sun.rmi.transport.Transport.serviceCall(Transport.java:196)

at sun.rmi.transport.tcp.TCPTransport.handleMessages(TCPTransport.java:568)

at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run0(TCPTransport.java:826)

at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.lambda$run$0(TCPTransport.java:683)

at java.security.AccessController.doPrivileged(Native Method)

at sun.rmi.transport.tcp.TCPTransport$ConnectionHandler.run(TCPTransport.java:682)

at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)

at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)

at java.lang.Thread.run(Thread.java:748)

Caused by: java.lang.IllegalArgumentException: servlet映射中的<url pattern>[ajax/content]无效

at org.apache.catalina.core.StandardContext.addServletMappingDecoded(StandardContext.java:3173)

at org.apache.catalina.core.StandardContext.addServletMappingDecoded(StandardContext.java:3160)

at org.apache.catalina.startup.ContextConfig.configureContext(ContextConfig.java:1389)

at org.apache.catalina.startup.ContextConfig.webConfig(ContextConfig.java:1166)

at org.apache.catalina.startup.ContextConfig.configureStart(ContextConfig.java:779)

at org.apache.catalina.startup.ContextConfig.lifecycleEvent(ContextConfig.java:299)

at org.apache.catalina.util.LifecycleBase.fireLifecycleEvent(LifecycleBase.java:123)

at org.apache.catalina.core.StandardContext.startInternal(StandardContext.java:5053)

at org.apache.catalina.util.LifecycleBase.start(LifecycleBase.java:183)

... 44 more

13-Sep-2020 10:04:37.002 严重 [RMI TCP Connection(5)-127.0.0.1] org.apache.tomcat.util.modeler.BaseModelMBean.invoke Exception invoking method manageApp

java.lang.IllegalStateException: ContainerBase.addChild: start: org.apache.catalina.LifecycleException: 无法启动组件[StandardEngine[Catalina].StandardHost[localhost].StandardContext[/ajax_war_exploded]]

at org.apache.catalina.core.ContainerBase.addChildInternal(ContainerBase.java:747)