tomcat7优化io模式为apr

wget http://mirrors.cnnic.cn/apache//apr/apr-1.5.2.tar.gz

wget http://mirrors.cnnic.cn/apache//apr/apr-util-1.5.4.tar.gz

wget http://mirrors.cnnic.cn/apache//apr/apr-iconv-1.2.1.tar.gz

tar -zxvf apr-1.5.2.tar.gz

 cd apr-1.5.2

./configure --prefix=/usr/local/apr

make

make install

tar -zxvf apr-iconv-1.2.1.tar.gz

cd apr-iconv-1.2.1

./configure --prefix=/usr/local/apr-iconv --with-apr=/usr/local/apr

make

make install

 tar -zxvf apr-util-1.5.4.tar.gz

cd apr-util-1.5.4

./configure --prefix=/usr/local/apr-util --with-apr=/usr/local/apr --with-apr-iconv=/usr/local/apr-iconv/bin/apriconv

make

make install

转到tomcat7所在目录，进入bin

tar -zxvf tomcat-native.tar.gz

 cd tomcat-native-1.1.32-src/

cd jni/native

./configure --with-apr=/usr/local/apr --with-java-home=/webservers/jdk7

make

make install

vi /etc/profile

增加：

export LD_LIBRARY_PATH=/usr/local/apr/lib

保存后source /etc/profile

修改 /etc/init.d/tomcat7ad

在jsvc的启动参数中增加：-Djava.library.path=/usr/local/apr/lib