Eclipse-为什么Tomcat返回404？

Question

我将Tomcat8.5与Eclipse集成在一起，但当我启动服务器并转到http：//localhost:8080或http：//localhost:8080/psite（配置了带有index.html的Eclipse项目）时，每次都会出现404错误。

1. 我尝试“切换位置”-不起作用。
2. “服务器概述”屏幕中的“服务器配置”部分在我的Eclipse（霓虹灯）上丢失。
3. 在窗口->首选项->运行时环境下：我使用“搜索”查找Tomcat安装目录。如果使用“添加”，则“下一步”按钮将永久变为灰色，并且无法配置路径。
4. 日志文件夹中不创建日志。
5. 使用安装程序安装了tomcat，在那里配置了JRE路径。当我使用tomcat核心提取压缩而不是安装程序时，也会发生同样的行为。
6. 更新-如果我从cmd启动Tomcat，我可以访问localhost:8080，很好（谢谢Sasikumar)-但是我的Eclipse有什么问题吗？是否需要重新安装？

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Feb 16, 2017 3:41:30 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Server version:        Apache Tomcat/8.5.11
Feb 16, 2017 3:41:30 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Server built:          Jan 10 2017 21:02:52 UTC
Feb 16, 2017 3:41:30 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Server number:         8.5.11.0
Feb 16, 2017 3:41:30 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: OS Name:               Windows 10
Feb 16, 2017 3:41:30 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: OS Version:            10.0
Feb 16, 2017 3:41:31 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Architecture:          amd64
Feb 16, 2017 3:41:31 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Java Home:             C:\Program Files\Java\jdk1.8.0_121\jre
Feb 16, 2017 3:41:31 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: JVM Version:           1.8.0_121-b13
Feb 16, 2017 3:41:31 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: JVM Vendor:            Oracle Corporation
Feb 16, 2017 3:41:31 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: CATALINA_BASE:         C:\Users\Nadav\Desktop\Workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0
Feb 16, 2017 3:41:31 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: CATALINA_HOME:         C:\Program Files\Apache Software Foundation\Tomcat 8.5
Feb 16, 2017 3:41:31 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dcatalina.base=C:\Users\Nadav\Desktop\Workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0
Feb 16, 2017 3:41:31 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dcatalina.home=C:\Program Files\Apache Software Foundation\Tomcat 8.5
Feb 16, 2017 3:41:31 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dwtp.deploy=C:\Users\Nadav\Desktop\Workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps
Feb 16, 2017 3:41:31 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Djava.endorsed.dirs=C:\Program Files\Apache Software Foundation\Tomcat 8.5\endorsed
Feb 16, 2017 3:41:31 PM org.apache.catalina.startup.VersionLoggerListener log
INFO: Command line argument: -Dfile.encoding=Cp1252
Feb 16, 2017 3:41:31 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\jdk1.8.0_121\bin;C:\WINDOWS\Sun\Java\bin;C:\WINDOWS\system32;C:\WINDOWS;C:/Program Files/Java/jre1.8.0_121/bin/server;C:/Program Files/Java/jre1.8.0_121/bin;C:/Program Files/Java/jre1.8.0_121/lib/amd64;C:\ProgramData\Oracle\Java\javapath;C:\Program Files (x86)\Intel\iCLS Client\;C:\Program Files\Intel\iCLS Client\;C:\Windows\system32;C:\Windows;C:\Windows\System32\Wbem;C:\Windows\System32\WindowsPowerShell\v1.0\;C:\Program Files\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\DAL;C:\Program Files\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files (x86)\Intel\Intel(R) Management Engine Components\IPT;C:\Program Files (x86)\NVIDIA Corporation\PhysX\Common;C:\Program Files\Intel\WiFi\bin\;C:\Program Files\Common Files\Intel\WirelessCommon\;C:\Program Files (x86)\Skype\Phone\;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\Program Files\Git\cmd;C:\Program Files\Intel\WiFi\bin\;C:\Program Files\Common Files\Intel\WirelessCommon\;%USERPROFILE%\AppData\Local\Microsoft\WindowsApps;;C:\Users\Nadav\eclipse\java-neon\eclipse;;.
Feb 16, 2017 3:41:31 PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-nio-8080"]
Feb 16, 2017 3:41:32 PM org.apache.tomcat.util.net.NioSelectorPool getSharedSelector
INFO: Using a shared selector for servlet write/read
Feb 16, 2017 3:41:32 PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["ajp-nio-8009"]
Feb 16, 2017 3:41:32 PM org.apache.tomcat.util.net.NioSelectorPool getSharedSelector
INFO: Using a shared selector for servlet write/read
Feb 16, 2017 3:41:32 PM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 1436 ms
Feb 16, 2017 3:41:32 PM org.apache.catalina.core.StandardService startInternal
INFO: Starting service Catalina
Feb 16, 2017 3:41:32 PM org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet Engine: Apache Tomcat/8.5.11
Feb 16, 2017 3:41:32 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler [http-nio-8080]
Feb 16, 2017 3:41:32 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler [ajp-nio-8009]
Feb 16, 2017 3:41:32 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 246 ms

从workspace.metadata.plugins\org.eclipse.wst.server.core\tmp0\logs“

127.0.0.1 - - [16/Feb/2017:15:37:39 +0200] "GET / HTTP/1.1" 404 988
0:0:0:0:0:0:0:1 - - [16/Feb/2017:15:37:43 +0200] "GET / HTTP/1.1" 404 988
127.0.0.1 - - [16/Feb/2017:15:40:57 +0200] "GET / HTTP/1.1" 404 988
0:0:0:0:0:0:0:1 - - [16/Feb/2017:15:40:59 +0200] "GET / HTTP/1.1" 404 988
127.0.0.1 - - [16/Feb/2017:15:41:32 +0200] "GET / HTTP/1.1" 404 988
0:0:0:0:0:0:0:1 - - [16/Feb/2017:15:41:34 +0200] "GET / HTTP/1.1" 404 988
127.0.0.1 - - [16/Feb/2017:16:06:00 +0200] "GET / HTTP/1.1" 404 988
0:0:0:0:0:0:0:1 - - [16/Feb/2017:16:06:06 +0200] "GET /manager HTTP/1.1" 404 1002

Answer 1

从eclipse启动tomcat时,它会更改catalina_base：

-Dcatalina.base=C:\Users\Nadav\Desktop\Workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0

这样，您就永远不会有manager应用程序在Eclipse中运行：它完全是空的。默认情况下部署了一个空根应用程序。现在，我怀疑您还没有在Servers视图中将应用程序添加到服务器（右键单击您的tomat并选择“添加或删除”）。控制台输出应该提到在这种情况下部署了psite。您还可以转到catalina base文件夹，检查您的应用程序的wtpwebapps文件夹。