apr -- Apache Portable Runtime

The mission of the Apache Portable Runtime (APR) project is to create and maintain software libraries that provide a predictable and consistent interface to underlying platform-specific implementations. The primary goal is to provide an API to which software developers may code and be assured of predictable if not identical behaviour regardless of the platform on which their software is built, relieving them of the need to code special-case conditions to work around or take advantage of platform-specific deficiencies or features.

 

使用APR的优点：

 

1.使用Apache Tomcat Native library提升Tomcat性能 
2.  apr全称Apache Portable Runtime，即可移植运行库.Tomcat 可以用 Apache Portable Runtime 来提供更强性能，提升Web静态页 
面的处理能力，不再需要专门的Web Server来处理静态页面了 

 

APR依赖三个本地组件 ：

1、APR library   
2、JNI wrappers for APR used by Tomcat (libtcnative)   
3、OpenSSL libraries