The Apache Tomcat Native library which allows optimal performance in production environments wasn

今天做java web 的时候启动服务器控制台报错，

信息: The Apache Tomcat Native library which allows optimal performance in production environments was not found onthejava.library.path: G:\my\Common\binary\com.sun.java.jdk.win32.x86_1.6.0.013\bin;G:\my\Common\plugins\com.genuitec.eclipse.easie.tomcat.myeclipse_9.0.0.me201109141806\tomcat\bin

看错误信息，英语那么破的我也看出来了是什么东西在这路径下找不到错误应该与tomcat 有关，果断重新安装一下tomcat7 结果。。果断的跪了错误信息有点变化

The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path

但是并没发现因为什么，百度一下吧参考：

https://www.cnblogs.com/ssh2/p/3994219.html 写的注释掉这段监听器，好吧，先试试

运行后发现多了这一行

 support is not available when running on Java 6. To suppress this message, run Tomcat on Java 7, remove the WebSocket JARs from $CATALINA_HOME/lib or add the WebSocket JARs to the tomcat.util.scan.DefaultJarScanner.jarsToSkip property in $CATALINA_BASE/conf/catalina.properties. Note that the deprecated Tomcat 7 WebSocket API will be available.

但是上面的错误信息确实没有了，我不知道这个与上一个是不是同一个毛病，所以我打算先把注释的恢复回去，然后再想想办法

。。有个问题，myeclipse 中tomcat部署的项目居然无法删除？退了myeclipse也不行，，，在任务管理器中找到了tomcat7 run.exe 结束进程，果断能删除部署在tomcat中的项目了，重启myeclipse没有部署项目单独启动tom 还是有这个问题，继续百度参考：https://blog.csdn.net/lc_apple/article/details/6116908 觉得这个博主说的跟上面那个有异曲同工之妙，在这里说，其实报这个错误大致就是因为tom加了新的功能，就是上面注释掉的这个APR功能，大家都在进步吗，tom也在寻求进步。什么时候需要知道了，在自己查资料吧，我还有下个bug需要解决，做好demo好找工作啊

具体解决就是http://tomcat.apache.org/download-native.cgi 下的here连接下载一个tomcat-native-*******.zip这种名字的压缩包解压出来个tcnative-1.dll 放到上面报错的路径下，就消停了

整理一下

这个问题就是找一个tcnative-1.dll 文件放到报错的bin路径下就能解决，

然后这个文件到哪里找呢

http://tomcat.apache.org/download-native.cgi 页面里找到这句话

You can find binaries release too. You may download them from HERE 就是这个HERE点开然后下载，然后解压出tcnative-1.dll 就ok了

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