我的 Windows 7 系统上安装了 Apache Tomcat 7.0.57。服务器已启动并正在运行，但每当我尝试运行 Manager 应用程序时，我都会收到错误 HTTP 状态 404。错误描述表明请求的资源不可用。我修改了 tomcat-users.xml 文件以添加具有“manager-gui”角色的用户。此外，在设置 Tomcat 期间，我将路径变量 CATALINA_HOME 和 CATALINA_BASE 设置为 D:/apache-tomcat-7.0.57/（因为我将只运行服务器的单个实例）。但这似乎仍然不行。
每当我使用 eclipse 启动服务器时，控制台都会显示以下内容：
Feb 09, 2015 3:19:21 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Server version: Apache Tomcat/7.0.57
Feb 09, 2015 3:19:21 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Server built: Nov 3 2014 08:39:16 UTC
Feb 09, 2015 3:19:21 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Server number: 7.0.57.0
Feb 09, 2015 3:19:21 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: OS Name: Windows 7
Feb 09, 2015 3:19:21 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: OS Version: 6.1
Feb 09, 2015 3:19:21 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Architecture: amd64
Feb 09, 2015 3:19:21 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: JAVA_HOME: C:\Program Files\Java\jre7
Feb 09, 2015 3:19:21 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: JVM Version: 1.7.0_75-b13
Feb 09, 2015 3:19:21 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: JVM Vendor: Oracle Corporation
Feb 09, 2015 3:19:21 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: CATALINA_BASE: D:\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp2
Feb 09, 2015 3:19:21 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: CATALINA_HOME: D:\apache-tomcat-7.0.57
Feb 09, 2015 3:19:21 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument:-Dcatalina.base=D:\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp2
Feb 09, 2015 3:19:21 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dcatalina.home=D:\apache-tomcat-7.0.57
Feb 09, 2015 3:19:21 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dwtp.deploy=D:\workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp2\wtpwebapps
Feb 09, 2015 3:19:21 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Djava.endorsed.dirs=D:\apache-tomcat-7.0.57\endorsed
Feb 09, 2015 3:19:21 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dfile.encoding=Cp1252
Feb 09, 2015 3:19:21 PM org.apache.catalina.core.AprLifecycleListener lifecycleEvent
INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: C:\Program Files\Java\jre7\bin;C:\Windows\Sun\Java\bin;C:\Windows\system32;C:\Windows;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files (x86)\Microsoft SQL Server\90\Tools\binn\;D:\Python\;C:\Program Files (x86)\Microsoft SQL Server\100\Tools\Binn\;C:\Program Files (x86)\Microsoft SQL Server\100\DTS\Binn\;C:\Program Files (x86)\Ixia\Tcl\8.5.12.0\bin;C:\Program Files (x86)\Ixia\Perl\site\bin;C:\Program Files (x86)\Ixia\Perl\bin;;C:\Program Files\Boot2Docker for Windows;C:\Program Files\Java\jre7\bin\;;.
Feb 09, 2015 3:19:21 PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-bio-8080"]
Feb 09, 2015 3:19:21 PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["ajp-bio-8010"]
Feb 09, 2015 3:19:21 PM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 504 ms
Feb 09, 2015 3:19:21 PM org.apache.catalina.core.StandardService startInternal
INFO: Starting service Catalina
Feb 09, 2015 3:19:21 PM org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet Engine: Apache Tomcat/7.0.57
Feb 09, 2015 3:19:22 PM org.apache.catalina.util.SessionIdGenerator createSecureRandom
INFO: Creation of SecureRandom instance for session ID generation using [SHA1PRNG] took [197] milliseconds.
Feb 09, 2015 3:19:22 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-bio-8080"]
Feb 09, 2015 3:19:22 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["ajp-bio-8010"]
Feb 09, 2015 3:19:22 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 535 ms
这里提到的CATALINA_BASE不是我设置的。