摘要：開通訪問生成證書編輯，打開以下注釋重啟查看訪問查看端口訪問如果出現恭喜你就成功啦。就不會出上述錯誤了。

CentOS版本：
CentOS release 6.8 (Final)

安裝包版本：
httpd-2.4.29.tar.gz
apr-1.6.3.tar.gz
apr-util-1.6.1
pcre-8.41.tar.gz

安裝包一般放在：/usr/local/src
安裝路徑一般為：/usr/local

安裝必要應用
# yum install -y gcc gcc-c++
# yum install -y expat-devel //錯誤1
# yum install -y pcre-devel //錯誤2
# yum install -y openssl-devel //錯誤3
# yum install -y libxml2-devel //錯誤4

apr安裝
# tar zvxf apr-1.6.3.tar.gz
# cd apr-1.6.3
# ./configure --prefix=/usr/local/apr/
# make
# make install

apr-util安裝
# tar zvxf apr-util-1.6.1.tar.gz
# cd apr-util-1.6.1
# ./configure --prefix=/usr/local/apr-util/ --with-apr=/usr/local/apr/
# make
# make install

pcre安裝
# tar zvxf pcre-8.41.tar.gz
# cd pcre-8.41
# ./configure --prefix=/usr/local/pcre/
# make
# make install

apache安裝

# ./configure
--prefix=/usr/local/apache2.4
--sbindir=/usr/local/apache2.4/sbin
--with-apr=/usr/local/apr/
--with-apr-util=/usr/local/apr-util
--with-pcre=/usr/local/pcre/
--enable-ssl
--with-ssl=shared
--enable-proxy=shared
--enable-so
--enable-mods-shared=all
# make
# make install

復制命令到service級別
# cp /usr/local/apache2.4/sbin/httpd /etc/rc.d/init.d

啟動
# service httpd -k start

停止
# service httpd -k stop

重啟
# service httpd -k restart

查看狀態
# service httpd -T

通過80端口狀態查看
# sudo netstat -antp|grep 80

通過進程查看
# ps -ef|grep httpd

訪問查看是否啟動成功
訪問：http://ip:80
出現It works! 恭喜你就成功啦。

生成證書

# cd /usr/local/apache2.4/conf
# openssl req -new -x509 -nodes -out server.crt -keyout server.key

編輯httpd.conf，打開以下注釋

Include conf/extra/httpd-ssl.conf 
LoadModule ssl_module modules/mod_ssl.so
LoadModule socache_shmcb_module modules/mod_socache_shmcb.so

重啟apache

查看&訪問

查看443端口：# sudo netstat -antp|grep 443

訪問：https://ip:443 , 如果出現It works! 恭喜你就成功啦。

編輯httpd.conf，打開以下注釋

 LoadModule proxy_module modules/mod_proxy.so
 LoadModule proxy_ajp_module modules/mod_proxy_ajp.so

通過443端口跳轉

編輯/conf/extra/httpd-ssl.conf(在443虛擬機中加入跳轉的tomcat)

ProxyPass ajp://127.0.0.1:#tomcat的ajp端口#/apache_tomcat_test

重啟apache

訪問： https://ip:443/apache_tomcat_test

通過80端口跳轉（用https，關閉http訪問）

編輯/conf/extra/httpd-ssl.conf(在80虛擬機中加入跳轉的tomcat)

SSLEngine on
SSLCertificateFile "/usr/local/apache2/conf/server.crt" 
SSLCertificateKeyFile "/usr/local/apache2/conf/server.key" 


  ProxyPass ajp://127.0.0.1:#tomcat的ajp端口#/apache_tomcat_test

重啟apache

訪問： https://ip:80/apache_tomcat_test

apr-util-1.6.1編譯時的錯誤

make[1]: Entering directory `/usr/local/apr-util-1.6.1"
/bin/sh /usr/local/apr//build-1/libtool --silent --mode=compile gcc -g -O2 -pthread -DHAVE_CONFIG_H -DLINUX -D_REENTRANT -D_GNU_SOURCE -I/usr/local/apr-util-1.6.1/include -I/usr/local/apr-util-1.6.1/include/private -I/usr/local/apr//include/apr-1 -o xml/apr_xml.lo -c xml/apr_xml.c && touch xml/apr_xml.lo
xml/apr_xml.c:35:19: error: expat.h: No such file or directory
xml/apr_xml.c:66: error: expected specifier-qualifier-list before ‘XML_Parser’
xml/apr_xml.c: In function ‘cleanup_parser’:
xml/apr_xml.c:364: error: ‘apr_xml_parser’ has no member named ‘xp’
xml/apr_xml.c:365: error: ‘apr_xml_parser’ has no member named ‘xp’
xml/apr_xml.c: トップレベル:
xml/apr_xml.c:384: error: expected ‘;’, ‘,’ or ‘)’ before ‘*’ token
xml/apr_xml.c: In function ‘apr_xml_parser_create’:
xml/apr_xml.c:401: error: ‘apr_xml_parser’ has no member named ‘xp’
xml/apr_xml.c:402: error: ‘apr_xml_parser’ has no member named ‘xp’
xml/apr_xml.c:410: error: ‘apr_xml_parser’ has no member named ‘xp’
xml/apr_xml.c:411: error: ‘apr_xml_parser’ has no member named ‘xp’
xml/apr_xml.c:412: error: ‘apr_xml_parser’ has no member named ‘xp’
xml/apr_xml.c:424: error: ‘apr_xml_parser’ has no member named ‘xp’
xml/apr_xml.c:424: error: ‘default_handler’ undeclared (first use in this function)
xml/apr_xml.c:424: error: (Each undeclared identifier is reported only once
xml/apr_xml.c:424: error: for each function it appears in.)
xml/apr_xml.c: In function ‘do_parse’:
xml/apr_xml.c:434: error: ‘apr_xml_parser’ has no member named ‘xp’
xml/apr_xml.c:438: error: ‘apr_xml_parser’ has no member named ‘xp’
xml/apr_xml.c:442: error: ‘apr_xml_parser’ has no member named ‘xp_err’
xml/apr_xml.c:442: error: ‘apr_xml_parser’ has no member named ‘xp’
xml/apr_xml.c: In function ‘apr_xml_parser_geterror’:
xml/apr_xml.c:500: error: ‘apr_xml_parser’ has no member named ‘xp_err’
xml/apr_xml.c:500: error: ‘apr_xml_parser’ has no member named ‘xp_err’
make[1]: * [xml/apr_xml.lo] Error 1
make[1]: Leaving directory `/usr/local/apr-util-1.6.1"
make: * [all-recursive] Error 1

原因：缺少expat庫，估計是apr-util-1.6不提供了，apr-util-1.5就沒這個錯誤

解決：# yum install -y expat-devel

apache ./configure時的錯誤
checking for pcre-config... false

原因：缺少pcre庫

解決：# yum -y install pcre-devel

apache ./configure時的錯誤
checking for OpenSSL version >= 0.9.8a... FAILED
configure: WARNING: OpenSSL version is too old

原因：OpenSSL版本舊

解決：# yum install -y openssl-devel

apache make時出錯
/usr/local/apr-util//lib/libaprutil-1.so: undefined reference to `XML_ParserCreate"
/usr/local/apr-util//lib/libaprutil-1.so: undefined reference to `XML_GetErrorCode"
/usr/local/apr-util//lib/libaprutil-1.so: undefined reference to `XML_SetUserData"
/usr/local/apr-util//lib/libaprutil-1.so: undefined reference to `XML_ErrorString"
/usr/local/apr-util//lib/libaprutil-1.so: undefined reference to `XML_SetEntityDeclHandler"
/usr/local/apr-util//lib/libaprutil-1.so: undefined reference to `XML_ParserFree"
/usr/local/apr-util//lib/libaprutil-1.so: undefined reference to `XML_SetElementHandler"
/usr/local/apr-util//lib/libaprutil-1.so: undefined reference to `XML_StopParser"
/usr/local/apr-util//lib/libaprutil-1.so: undefined reference to `XML_Parse"
/usr/local/apr-util//lib/libaprutil-1.so: undefined reference to `XML_SetCharacterDataHandler"
collect2: ld returned 1 exit status
make[2]: * [htpasswd] Error 1
make[2]: Leaving directory `/usr/local/httpd-2.4.29/support"
make[1]: * [all-recursive] Error 1
make[1]: Leaving directory `/usr/local/httpd-2.4.29/support"
make: * [all-recursive] Error 1

原因：缺少了xml相關的庫，導致reference無效

解決：# yum install -y libxml2-devel

注意：安裝libxml2-devel后，需要刪掉apr-util，重新安裝

apache依賴包可以降低到1.5。就不會出上述錯誤了。

apr-1.5.2
apr-util-1.5.2
pcre-8.41