Centos 6.5配置tomcat7.0.63APR运行库支持

Tomcat是一个小型的轻量级应用服务器，也是JavaEE开发人员最常用的服务器之一。Tomcat Connector(Tomcat连接器)有bio、nio、apr三种运行模式，Tomcat的原生库基于Apache可移植运行时（Apache Portable Runtime简称APR），给程序员提供了超强的扩展性和性能，在产品运作中帮助融合原生的服务器技术以展现最佳的性能。

Tomcat在默认情况下，就是以bio模式运行的。就一般而言，bio模式是三种运行模式中性能最低的一种，Java nio是一个基于缓冲区、并能提供非阻塞I/O操作的Java API，它拥有比传统I/O操作(bio)更好的并发运行性能。让tomcat支持NIO模式只需在server.xml文件里面修改Connector节点的protocol属性，将HTTP/1.1改为org.apache.coyote.http11.Http11NioProtocol即可。

apr(Apache Portable Runtime/Apache可移植运行时)，是Apache HTTP服务器的支持库。你可以简单地理解为，Tomcat将以JNI的形式调用Apache HTTP服务器的核心动态链接库来处理文件读取或网络传输操作，从而大大地提高Tomcat对静态文件的处理性能。 Tomcat apr也是在Tomcat上运行高并发应用的首选模式，但是安装apr比较复杂，需要下面4个文件：

apr-1.5.2.tar.gz apr-iconv-1.2.1.tar.gz apr-util-1.5.4.tar.gz tomcat-native-1.1.33-src.tar.gz

apr-1.5.2.tar.gz

apr-iconv-1.2.1.tar.gz

apr-util-1.5.4.tar.gz

tomcat-native-1.1.33-src.tar.gz

安装apr步骤

）安装apr

wget https://apache.fayea.com//apr/apr-1.5.2.tar.gz tar zxvf apr-1.5.2.tar cd apr-1.5.2 ./configure –prefix=/usr/local/apr make make install

wget  https://apache.fayea.com//apr/apr-1.5.2.tar.gz

         tar zxvf apr-1.5.2.tar

cd apr-1.5.2  

./configure –prefix=/usr/local/apr  

make  make install

）安装apr-iconv

wget https://apache.fayea.com//apr/apr-iconv-1.2.1.tar.gz 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 instal

        wget  https://apache.fayea.com//apr/apr-iconv-1.2.1.tar.gz

        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 instal

）安装apr-util

wget https://apache.fayea.com//apr/apr-util-1.5.4.tar.gz 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

        wget https://apache.fayea.com//apr/apr-util-1.5.4.tar.gz

        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

）安装apr-native（也可以去tomcat bin目录下找到安装包）

wget https://archive.apache.org/dist/tomcat/tomcat-connectors/native/1.1.30/source/tomcat-native-1.1.33-src.tar.gz //查看JAVA_HOME位置 echo $JAVA_HOME tar zxvf tomcat-native-1.1.33-src.tar.gz cd tomcat-native-1.1.30-src/jni/native ./configure –with-apr=/usr/local/apr –with-java-home=/usr/java/jdk1.7 make make instal

wget https://archive.apache.org/dist/tomcat/tomcat-connectors/native/1.1.30/source/tomcat-native-1.1.33-src.tar.gz

//查看JAVA_HOME位置 echo $JAVA_HOME

tar zxvf tomcat-native-1.1.33-src.tar.gz

cd tomcat-native-1.1.30-src/jni/native

./configure –with-apr=/usr/local/apr –with-java-home=/usr/java/jdk1.7

make

make instal

5）修改环境变量

vim /etc/profile 在文件末尾添加如下代码

export LD_LIBRARY_PATH=/usr/local/apr/lib

保存成功后执行

source /etc/profile使之生效

上述步骤完成后,修改tomcat安装目录conf文件里的server.xml，修改如下代码

<Connector port=”9008″ useBodyEncodingForURI=”true” URIEncoding=”UTF-8″ protocol=”org.apache.coyote.http11.Http11AprProtocol”

connectionTimeout=”20000″ maxThreads=”250″ maxHttpHeaderSize=”8192″ emptySessionPath=”true” enableLookups=”false”

acceptCount=”100″ compression=”on” compressionMinSize=”500″ noCompressionUserAgents=”gozilla, traviata” compressableMimeType=”text/html,application/xml,application/json,application/javascript,text/css,text/plain”

disableUploadTimeout=”false” connectionUploadTimeout=”60000″

redirectPort=”9833″ />

如果重启报如下错误：

INFO: The APR based Apache Tomcat Native library which allows optimal performance in production environments was not found on the java.library.path: /usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib

Aug 18, 2015 12:36:49 AM org.apache.catalina.core.StandardService initInternal

SEVERE: Failed to initialize connector [Connector[HTTP/1.1-9008]]

org.apache.catalina.LifecycleException: Failed to initialize component [Connector[HTTP/1.1-9008]]

说明tomcat没有在上述路径找到native 库，执行如下步骤：

[root@ssss bin]# vi setenv.sh

CATALINA_OPTS=”$CATALINA_OPTS -Djava.library.path=/usr/local/apr/lib”

然后重启，可以看到配置成功：

INFO: Loaded APR based Apache Tomcat Native library 1.1.33 using APR version 1.5.2.

Aug 18, 2015 1:01:41 AM org.apache.catalina.core.AprLifecycleListener lifecycleEvent

INFO: APR capabilities: IPv6 [true], sendfile [true], accept filters [false], random [true].

Aug 18, 2015 1:01:41 AM org.apache.catalina.core.AprLifecycleListener initializeSSL

INFO: OpenSSL successfully initialized (OpenSSL 1.0.1e 11 Feb 2013)

Aug 18, 2015 1:01:41 AM org.apache.coyote.AbstractProtocol init

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