【解决】requires the APR/native library which is not available

今天从旧的服务器上搬到新服务器时tomcat报错：

严重: Failed to initialize connector [Connector[HTTP/1.1-9001]]
org.apache.catalina.LifecycleException: Failed to initialize component [Connector[HTTP/1.1-9001]]
	at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:106)
	at org.apache.catalina.core.StandardService.initInternal(StandardService.java:559)
	at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102)
	at org.apache.catalina.core.StandardServer.initInternal(StandardServer.java:821)
	at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102)
	at org.apache.catalina.startup.Catalina.load(Catalina.java:638)
	at org.apache.catalina.startup.Catalina.load(Catalina.java:663)
	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
	at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
	at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
	at java.lang.reflect.Method.invoke(Unknown Source)
	at org.apache.catalina.startup.Bootstrap.load(Bootstrap.java:253)
	at org.apache.catalina.startup.Bootstrap.main(Bootstrap.java:427)
Caused by: org.apache.catalina.LifecycleException: The configured protocol [org.apache.coyote.http11.Http11AprProtocol] requires the APR/native library which is not available
	at org.apache.catalina.connector.Connector.initInternal(Connector.java:972)
	at org.apache.catalina.util.LifecycleBase.init(LifecycleBase.java:102)
	... 12 more

 网络上查了一堆资料，

Windows环境

APR需要安装三个组件：
　　 1、APR library
　　 2、JNI wrappers for APR used by Tomcat (libtcnative)
　　 3、OpenSSL libraries
　　从http://tomcat.heanet.ie/native/1.1.14/binaries/win32/ ，下载tcnative-1.1.10.dll，tcnative-1.1.10.dll已经包含了上面的三个组件，所以只要把tcnative-1.1.10.dll拷贝到tomcat的bin下就行了。

 搞了半天，还是报错！！！最终的解决方案是：将Tomcat7\bin下的tcnative-1.dll拷贝到jdk\bin目录下替换即可。（估计是版本的问题）

小结：tcnative-1.dll不需要下载，至少对于Tomcat7来说是这样，我们可以在其bin目录下找到这个dll。