Tomcat 无法在 Eclipse 中启动 - java.net.BindException：地址已在使用中

Question

我是 Tomcat 和 Eclipse 的新手，但几天来一直在寻找解决方案。我已经安装了 Tomcat v7.0 并且可以从终端启动/停止它，但是我无法从 Eclipse 中让它工作。我正在关注http://www.vogella.de/articles/EclipseWTP/article.html#jspservlets 上的教程，但是当我尝试运行我的 servlet 时，我收到警告：“本地主机上的服务器 Tomcat v7.0 服务器无法启动”，控制台输出为：

Feb 18, 2012 7:05:54 PM org.apache.catalina.core.AprLifecycleListener init
INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: .:/Library/Java/Extensions:/System/Library/Java/Extensions:/usr/lib/java
Feb 18, 2012 7:05:54 PM org.apache.tomcat.util.digester.SetPropertiesRule begin
WARNING: [SetPropertiesRule]{Server/Service/Engine/Host/Context} Setting property 'source' to 'org.eclipse.jst.jee.server:de.vogella.wtp.filecounter' did not find a matching property.
Feb 18, 2012 7:05:54 PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["http-bio-8080"]
Feb 18, 2012 7:05:54 PM org.apache.coyote.AbstractProtocol init
INFO: Initializing ProtocolHandler ["ajp-bio-8009"]
Feb 18, 2012 7:05:54 PM org.apache.catalina.startup.Catalina load
INFO: Initialization processed in 1046 ms
Feb 18, 2012 7:05:54 PM org.apache.catalina.core.StandardService startInternal
INFO: Starting service Catalina
Feb 18, 2012 7:05:54 PM org.apache.catalina.core.StandardEngine startInternal
INFO: Starting Servlet Engine: Apache Tomcat/7.0.25
Feb 18, 2012 7:05:55 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["http-bio-8080"]
Feb 18, 2012 7:05:55 PM org.apache.coyote.AbstractProtocol start
INFO: Starting ProtocolHandler ["ajp-bio-8009"]
Feb 18, 2012 7:05:55 PM org.apache.catalina.startup.Catalina start
INFO: Server startup in 654 ms
Feb 18, 2012 7:05:55 PM org.apache.catalina.core.StandardServer await
SEVERE: StandardServer.await: create[localhost:8005]: 
java.net.BindException: Address already in use
at java.net.PlainSocketImpl.socketBind(Native Method)
at java.net.PlainSocketImpl.bind(PlainSocketImpl.java:383)
at java.net.ServerSocket.bind(ServerSocket.java:328)
at java.net.ServerSocket.<init>(ServerSocket.java:194)
at org.apache.catalina.core.StandardServer.await(StandardServer.java:422)
at org.apache.catalina.startup.Catalina.await(Catalina.java:728)
at org.apache.catalina.startup.Catalina.start(Catalina.java:674)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.catalina.startup.Bootstrap.start(Bootstrap.java:322)
at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:450)
Feb 18, 2012 7:05:55 PM org.apache.coyote.AbstractProtocol pause
INFO: Pausing ProtocolHandler ["http-bio-8080"]
Feb 18, 2012 7:05:55 PM org.apache.coyote.AbstractProtocol pause
INFO: Pausing ProtocolHandler ["ajp-bio-8009"]
Feb 18, 2012 7:05:55 PM org.apache.catalina.core.StandardService stopInternal
INFO: Stopping service Catalina
Feb 18, 2012 7:05:55 PM org.apache.coyote.AbstractProtocol stop
INFO: Stopping ProtocolHandler ["http-bio-8080"]
Feb 18, 2012 7:05:55 PM org.apache.coyote.AbstractProtocol stop
INFO: Stopping ProtocolHandler ["ajp-bio-8009"]
Feb 18, 2012 7:05:55 PM org.apache.coyote.AbstractProtocol destroy
INFO: Destroying ProtocolHandler ["http-bio-8080"]
Feb 18, 2012 7:05:55 PM org.apache.coyote.AbstractProtocol destroy
INFO: Destroying ProtocolHandler ["ajp-bio-8009"]

在我尝试运行 Tomcat 之前，netstat 没有显示正在使用的端口 8080、8005 或 8009，所以这似乎不是问题。知道出了什么问题吗？

Answer 1

似乎在您安装 Tomcat 时 - 它决定在服务模式下运行，并且必须在您启动系统时运行。因此，当您通过 eclipse 启动 tomcat 时出现错误。在 server.xml 中使用其他端口可能无法解决您的问题。我的猜测是另一个 tomcat 实例已经在运行。您可以在开始之前检查另一个 tomcat 实例的任务管理器是否正在运行它来自日食？ 你也可以发布 netstat run 的结果吗？

Answer 2

第 1 步：转到 C:\Windows\System32\drivers\etc

第 2 步：

找到hosts文件并用记事本以管理员模式打开

第 3 步：

将本地主机ip替换为127.0.0.1

例子

# Copyright (c) 1993-2009 Microsoft Corp.
#
# This is a sample HOSTS file used by Microsoft TCP/IP for Windows.
#
# This file contains the mappings of IP addresses to host names. Each
# entry should be kept on an individual line. The IP address should
# be placed in the first column followed by the corresponding host name.
# The IP address and the host name should be separated by at least one
# space.
#
# Additionally, comments (such as these) may be inserted on individual
# lines or following the machine name denoted by a '#' symbol.
#
# For example:
#
#      102.54.94.97     rhino.acme.com          # source server
#       38.25.63.10     x.acme.com              # x client host

# localhost name resolution is handled within DNS itself.
    127.0.0.1       localhost
#   ::1             localhost

第四步：

保存该文件并运行服务器

Answer 3

更改 Tomcat 端口设置：

Tomcat 似乎已经集成在 Eclipse 中了。所以在你的 Eclipse 中应该有一个名为“Servers”的项目，你可以找到你的 Tomcat 配置节点。更改server.xml 中的端口属性。当然，插件提供了很多与Tomcat集成的方式，但基本思路是改server.xml。