我真的是把提问区里所有404的报错全看了！！！还是不行，我的不报错，就是不好解决！！！

运行后呢会自动弹出网页，但是是404，我代码没问题，因为我把自己的备份了后，都是copy老师的

我的xml是我自己的。

我看是说加个 sout的输出看看路径，这个我加了但是我不知道如何调试，我就是还是点的debug，他也没出来什么路径，我想知道在哪看怎么调试？然后 404的问题咋解决，没有报错，能远程吗？

或者真的更详细的说一下，因为代码是老师的能注意的我全照做了！！！！！！！！！！！！

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns="http://xmlns.jcp.org/xml/ns/javaee"
         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
         xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_3_1.xsd"
         version="3.1">
<!--    <listener>-->
<!--        <listener-class>com.imooc.icake.global.CatelogTreeListener</listener-class>-->
<!--    </listener>-->
    <filter>
        <filter-name>encoding</filter-name>
        <filter-class>com.imooc.icake.global.EncodingFilter</filter-class>
        <init-param>
            <param-name>encoding</param-name>
            <param-value>UTF-8</param-value>
        </init-param>
    </filter>
    <filter-mapping>
        <filter-name>encoding</filter-name>
        <url-pattern>/*</url-pattern>
    </filter-mapping>

<!--    <filter>-->
<!--        <filter-name>Login</filter-name>-->
<!--        <filter-class>com.imooc.icake.global.LoginFilter</filter-class>-->
<!--    </filter>-->
<!--    <filter-mapping>-->
<!--        <filter-name>Login</filter-name>-->
<!--        <url-pattern>/admin/*</url-pattern>-->
<!--    </filter-mapping>-->

    <servlet>
        <servlet-name>GlobalServlet</servlet-name>
        <servlet-class>com.imooc.icake.global.GlobalController</servlet-class>
    </servlet>
    <servlet-mapping>
        <servlet-name>GlobalServlet</servlet-name>
        <url-pattern>*.do</url-pattern>
    </servlet-mapping>
</web-app>

E:\Apache\apache-tomcat-8.5.47\bin\catalina.bat run

[2019-11-21 07:18:56,132] Artifact icake:war exploded: Waiting for server connection to start artifact deployment...

Using CATALINA_BASE: "C:\Users\86176\.IntelliJIdea2019.2\system\tomcat\Unnamed_icake"

Using CATALINA_HOME: "E:\Apache\apache-tomcat-8.5.47"

Using CATALINA_TMPDIR: "E:\Apache\apache-tomcat-8.5.47\temp"

Using JRE_HOME: "C:\Program Files\Java\jdk1.8.0_101"

Using CLASSPATH: "E:\Apache\apache-tomcat-8.5.47\bin\bootstrap.jar;E:\Apache\apache-tomcat-8.5.47\bin\tomcat-juli.jar"

Connected to the target VM, address: '127.0.0.1:61764', transport: 'socket'

21-Nov-2019 19:18:56.977 淇℃伅 [main] org.apache.catalina.startup.VersionLoggerListener.log Server.鏈嶅姟鍣ㄧ増鏈�: Apache Tomcat/8.5.47

21-Nov-2019 19:18:56.992 淇℃伅 [main] org.apache.catalina.startup.VersionLoggerListener.log 鏈嶅姟鍣ㄦ瀯寤�: Oct 7 2019 13:30:46 UTC

21-Nov-2019 19:18:56.992 淇℃伅 [main] org.apache.catalina.startup.VersionLoggerListener.log Server version number: 8.5.47.0

21-Nov-2019 19:18:56.992 淇℃伅 [main] org.apache.catalina.startup.VersionLoggerListener.log OS Name: Windows 10

21-Nov-2019 19:18:56.992 淇℃伅 [main] org.apache.catalina.startup.VersionLoggerListener.log OS.鐗堟湰: 10.0

21-Nov-2019 19:18:56.992 淇℃伅 [main] org.apache.catalina.startup.VersionLoggerListener.log 鏋舵瀯: amd64

21-Nov-2019 19:18:56.992 淇℃伅 [main] org.apache.catalina.startup.VersionLoggerListener.log Java 鐜鍙橀噺: C:\Program Files\Java\jdk1.8.0_101\jre

21-Nov-2019 19:18:56.992 淇℃伅 [main] org.apache.catalina.startup.VersionLoggerListener.log JVM 鐗堟湰: 1.8.0_101-b13

21-Nov-2019 19:18:56.992 淇℃伅 [main] org.apache.catalina.startup.VersionLoggerListener.log JVM.渚涘簲鍟�: Oracle Corporation

21-Nov-2019 19:18:56.992 淇℃伅 [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_BASE: C:\Users\86176\.IntelliJIdea2019.2\system\tomcat\Unnamed_icake

21-Nov-2019 19:18:56.992 淇℃伅 [main] org.apache.catalina.startup.VersionLoggerListener.log CATALINA_HOME: E:\Apache\apache-tomcat-8.5.47

21-Nov-2019 19:18:56.992 淇℃伅 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.config.file=C:\Users\86176\.IntelliJIdea2019.2\system\tomcat\Unnamed_icake\conf\logging.properties

21-Nov-2019 19:18:56.992 淇℃伅 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager

21-Nov-2019 19:18:56.992 淇℃伅 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -agentlib:jdwp=transport=dt_socket,address=127.0.0.1:61764,suspend=y,server=n

21-Nov-2019 19:18:56.992 淇℃伅 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -javaagent:C:\Users\86176\.IntelliJIdea2019.2\system\captureAgent\debugger-agent.jar

21-Nov-2019 19:18:56.992 淇℃伅 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcom.sun.management.jmxremote=

21-Nov-2019 19:18:56.992 淇℃伅 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcom.sun.management.jmxremote.port=1099

21-Nov-2019 19:18:56.992 淇℃伅 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcom.sun.management.jmxremote.ssl=false

21-Nov-2019 19:18:56.992 淇℃伅 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcom.sun.management.jmxremote.password.file=C:\Users\86176\.IntelliJIdea2019.2\system\tomcat\Unnamed_icake\jmxremote.password

21-Nov-2019 19:18:56.992 淇℃伅 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcom.sun.management.jmxremote.access.file=C:\Users\86176\.IntelliJIdea2019.2\system\tomcat\Unnamed_icake\jmxremote.access

21-Nov-2019 19:18:56.992 淇℃伅 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.rmi.server.hostname=127.0.0.1

21-Nov-2019 19:18:56.992 淇℃伅 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djdk.tls.ephemeralDHKeySize=2048

21-Nov-2019 19:18:56.992 淇℃伅 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.protocol.handler.pkgs=org.apache.catalina.webresources

21-Nov-2019 19:18:56.992 淇℃伅 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dignore.endorsed.dirs=

21-Nov-2019 19:18:56.992 淇℃伅 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.base=C:\Users\86176\.IntelliJIdea2019.2\system\tomcat\Unnamed_icake

21-Nov-2019 19:18:57.008 淇℃伅 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Dcatalina.home=E:\Apache\apache-tomcat-8.5.47

21-Nov-2019 19:18:57.008 淇℃伅 [main] org.apache.catalina.startup.VersionLoggerListener.log Command line argument: -Djava.io.tmpdir=E:\Apache\apache-tomcat-8.5.47\temp

21-Nov-2019 19:18:57.008 淇℃伅 [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent Loaded APR based Apache Tomcat Native library [1.2.23] using APR version [1.7.0].

21-Nov-2019 19:18:57.008 淇℃伅 [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent APR capabilities: IPv6 [true], sendfile [true], accept filters [false], random [true].

21-Nov-2019 19:18:57.008 淇℃伅 [main] org.apache.catalina.core.AprLifecycleListener.lifecycleEvent APR/OpenSSL configuration: useAprConnector [false], useOpenSSL [true]

21-Nov-2019 19:18:57.008 淇℃伅 [main] org.apache.catalina.core.AprLifecycleListener.initializeSSL OpenSSL successfully initialized [OpenSSL 1.1.1c 28 May 2019]

21-Nov-2019 19:18:57.102 淇℃伅 [main] org.apache.coyote.AbstractProtocol.init 鍒濆鍖栧崗璁鐞嗗櫒 ["http-nio-8080"]

21-Nov-2019 19:18:57.148 淇℃伅 [main] org.apache.tomcat.util.net.NioSelectorPool.getSharedSelector Using a shared selector for servlet write/read

21-Nov-2019 19:18:57.164 淇℃伅 [main] org.apache.coyote.AbstractProtocol.init 鍒濆鍖栧崗璁鐞嗗櫒 ["ajp-nio-8009"]

21-Nov-2019 19:18:57.164 淇℃伅 [main] org.apache.tomcat.util.net.NioSelectorPool.getSharedSelector Using a shared selector for servlet write/read

21-Nov-2019 19:18:57.164 淇℃伅 [main] org.apache.catalina.startup.Catalina.load Initialization processed in 436 ms

21-Nov-2019 19:18:57.195 淇℃伅 [main] org.apache.catalina.core.StandardService.startInternal Starting service [Catalina]

21-Nov-2019 19:18:57.195 淇℃伅 [main] org.apache.catalina.core.StandardEngine.startInternal Starting Servlet Engine: Apache Tomcat/8.5.47

21-Nov-2019 19:18:57.227 淇℃伅 [main] org.apache.coyote.AbstractProtocol.start 寮�濮嬪崗璁鐞嗗彞鏌刐"http-nio-8080"]

21-Nov-2019 19:18:57.242 淇℃伅 [main] org.apache.coyote.AbstractProtocol.start 寮�濮嬪崗璁鐞嗗彞鏌刐"ajp-nio-8009"]

21-Nov-2019 19:18:57.242 淇℃伅 [main] org.apache.catalina.startup.Catalina.start Server startup in 75 ms

Connected to server

[2019-11-21 07:18:57,743] Artifact icake:war exploded: Artifact is being deployed, please wait...

21-Nov-2019 19:18:58.461 淇℃伅 [RMI TCP Connection(3)-127.0.0.1] org.apache.jasper.servlet.TldScanner.scanJars 鑷冲皯鏈変竴涓狫AR琚壂鎻忕敤浜嶵LD浣嗗皻鏈寘鍚玊LD銆� 涓烘璁板綍鍣ㄥ惎鐢ㄨ皟璇曟棩蹇楄褰曪紝浠ヨ幏鍙栧凡鎵弿浣嗘湭鍦ㄥ叾涓壘鍒癟LD鐨勫畬鏁碕AR鍒楄〃銆� 鍦ㄦ壂鎻忔湡闂磋烦杩囦笉闇�瑕佺殑JAR鍙互缂╃煭鍚姩鏃堕棿鍜孞SP缂栬瘧鏃堕棿銆�

[2019-11-21 07:18:58,510] Artifact icake:war exploded: Artifact is deployed successfully

[2019-11-21 07:18:58,510] Artifact icake:war exploded: Deploy took 767 milliseconds

21-Nov-2019 19:19:07.227 淇℃伅 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory 鎶妛eb 搴旂敤绋嬪簭閮ㄧ讲鍒扮洰褰� [E:\Apache\apache-tomcat-8.5.47\webapps\manager]

21-Nov-2019 19:19:07.273 淇℃伅 [localhost-startStop-1] org.apache.jasper.servlet.TldScanner.scanJars 鑷冲皯鏈変竴涓狫AR琚壂鎻忕敤浜嶵LD浣嗗皻鏈寘鍚玊LD銆� 涓烘璁板綍鍣ㄥ惎鐢ㄨ皟璇曟棩蹇楄褰曪紝浠ヨ幏鍙栧凡鎵弿浣嗘湭鍦ㄥ叾涓壘鍒癟LD鐨勫畬鏁碕AR鍒楄〃銆� 鍦ㄦ壂鎻忔湡闂磋烦杩囦笉闇�瑕佺殑JAR鍙互缂╃煭鍚姩鏃堕棿鍜孞SP缂栬瘧鏃堕棿銆�

21-Nov-2019 19:19:07.273 淇℃伅 [localhost-startStop-1] org.apache.catalina.startup.HostConfig.deployDirectory Deployment of web application directory [E:\Apache\apache-tomcat-8.5.47\webapps\manager] has finished in [46] ms