技术中间件应用

Tomcat apr错误

Tomcat, web

缺少apr的支持，导致启动报错:

信息: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path:
解决办法
按照官方说明需要：
APR library
OpenSSL libraries
openssl 可以用 yum install openssl-devel，apr还是下载*.gz来安装。 下载三个源码包：
  1、apr-1.4.6.tar.gz
  2、apr-util-1.4.1.tar.gz
  3、tomcat-native-1.1.27-src.tar.gz
安装 apr

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cd apr-1.4.6   
./configure   --prefix=/usr/local/apr
make  
make install  
#apr 默认安装在 /usr/local/apr

安装 apr-util

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cd apr-util-1.4.1   
./configure --with-apr=/usr/local/apr   
make  
make install

安装 tomcat-native

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cd tomcat-native-1.2.27-src/jni/native   
./configure --with-apr=/usr/local/apr --with-java-home=/usr/java/jdk1.7.0  
make  
make install

设置 apr 的环境变量：

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vi /etc/profile   
# 后面添加以下内容   注：这个只会临时生效
export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:/usr/local/apr/lib   
# 使profile生效，   
source /etc/profile

启动 tomcat 后， 看日志：

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bin/startup.sh   
head logs/catalina.out

成功会看到

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信息: Loaded APR based Apache Tomcat Native library 1.1.33 using APR version 1.5.2.
2015-11-16 9:44:40 org.apache.catalina.core.AprLifecycleListener init
信息: APR capabilities: IPv6 [true], sendfile [true], accept filters [false], random [true].
2015-11-16 9:44:40 org.apache.catalina.core.AprLifecycleListener initializeSSL

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