tomcat启动The APR based Apache Tomcat Native library

[转载]The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: E:\JavaTool\jdk1.6.0_24\bin;E:\JavaTool\apache-tomcat-6.0.35\bin 

Tomcat启动的时候出现下面这样的提示：
2012-4-22 4:16:01 org.apache.catalina.core.AprLifecycleListener init
信息: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: E:\JavaTool\jdk1.6.0_24\bin;E:\JavaTool\apache-tomcat-6.0.35\bin
2012-4-22 4:16:02 org.apache.coyote.http11.Http11Protocol init
信息: Initializing Coyote HTTP/1.1 on http-80
2012-4-22 4:16:02 org.apache.catalina.startup.Catalina load
信息: Initialization processed in 584 ms
2012-4-22 4:16:02 org.apache.catalina.core.StandardService start
信息: Starting service Catalina
2012-4-22 4:16:02 org.apache.catalina.core.StandardEngine start
信息: Starting Servlet Engine: Apache Tomcat/6.0.35
2012-4-22 4:16:02 org.apache.coyote.http11.Http11Protocol start
信息: Starting Coyote HTTP/1.1 on http-80
2012-4-22 4:16:02 org.apache.jk.common.ChannelSocket init
信息: JK: ajp13 listening on /0.0.0.0:8009
2012-4-22 4:16:02 org.apache.jk.server.JkMain start
信息: Jk running ID=0 time=0/31  config=null
2012-4-22 4:16:02 org.apache.catalina.startup.Catalina start
信息: Server startup in 144 ms

说明：实际这是建议使用apache的apr。如果想使用apr的话， 实际操作很简单，

打开http://archive.apache.org/dist/tomcat/tomcat-connectors/native/

选择适合你tomcat的版本，我的tomcat是6.0.35的，启动tomcat的时候，提示

信息: An older version 1.1.20 of the APR based Apache Tomcat Native library is installed, while Tomcat recommends version greater than 1.1.22

所以我下载了现有最新版本1.1.23的，下载地址

http://archive.apache.org/dist/tomcat/tomcat-connectors/native/1.1.23/binaries/tomcat-native-1.1.23-win32-bin.zip

下载后解压缩，如果是window xp系统，复制解压出来的tcnative-1.dll文件到Tomcat安装路径下的bin目录里，或者JDK安装路径的bin目录里

重新启动tomcat，就会发现tomcat 的控制台信息为：

2012-4-22 4:48:40 org.apache.catalina.core.AprLifecycleListener init

信息: Loaded APR based Apache Tomcat Native library 1.1.23.

2012-4-22 4:48:40 org.apache.catalina.core.AprLifecycleListener init

信息: APR capabilities: IPv6 [true], sendfile [true], accept filters [false], random [true].

2012-4-22 4:48:41 org.apache.coyote.http11.Http11AprProtocol init

信息: Initializing Coyote HTTP/1.1 on http-80

2012-4-22 4:48:41 org.apache.coyote.ajp.AjpAprProtocol init

信息: Initializing Coyote AJP/1.3 on ajp-8009

2012-4-22 4:48:41 org.apache.catalina.startup.Catalina load

信息: Initialization processed in 1170 ms

2012-4-22 4:48:41 org.apache.catalina.core.StandardService start

信息: Starting service Catalina

2012-4-22 4:48:41 org.apache.catalina.core.StandardEngine start

信息: Starting Servlet Engine: Apache Tomcat/6.0.35

2012-4-22 4:48:41 org.apache.coyote.http11.Http11AprProtocol start

信息: Starting Coyote HTTP/1.1 on http-80

2012-4-22 4:48:41 org.apache.coyote.ajp.AjpAprProtocol start

信息: Starting Coyote AJP/1.3 on ajp-8009

2012-4-22 4:48:41 org.apache.catalina.startup.Catalina start

信息: Server startup in 132 ms

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