Apache利用JDK自身keytool实现HTTPS
因为一个偶然机会，想把自己的webserver通过https加密访问，这里就采用JDK自带的keytool工具实现，tomcat官方也推荐这种方式，英文好的同学走这里：https://tomcat.apache.org/tomcat-7.0-doc/ssl-howto.html实验环境：
os: centos 6.6 x86_64
tomcat: tomcat7(tomcat6 too)
jdk: 1.7,1.6（只要有keytool就行）
首先，你的tomcat环境是可以正常运行的，这个不在这里的讨论范围之内。
1.生成 keystore
# keytool -genkey -v -alias tomcat -keyalg RSA -keystore mykeystore
Enter keystore password: #设置密码
Re-enter new password: #重复一次
What is your first and last name?
:Alex Lu #随便填
What is the name of your organizational unit?
:visionet #随便填
What is the name of your organization?
:visionet #随便填
What is the name of your City or Locality?
:SH #随便填
What is the name of your State or Province?
:SH #随便填
What is the two-letter country code for this unit?
:ZH #随便填
Is CN=Alex Lu, OU=visionet, O=visionet, L=SH, ST=SH, C=ZH correct?
:Y #这里要Y，确认前面信息。
Generating 2,048 bit RSA key pair and self-signed certificate (SHA256withRSA) with a validity of 90 days
for: CN=Alex Lu, OU=visionet, O=visionet, L=SH, ST=SH, C=ZH
Enter key password for
(RETURN if same as keystore password): #默认回车即可，不需要设置太多密码
# ls
Catalinacatalina.policycatalina.propertiescontext.xmllogging.propertiesmykeystoreserver.xmltomcat-users.xmlweb.xml 注意：-keystore是用来指定keystore保存位置，如果不加参数默认保存的当前用户家目录为~/.keystore
-validity 可以用来指定证书有效期，单位为天，缺省值为90天。
2.备份$tomcatdir/conf/server.xml To $tomcatdir/conf/server.xml.bak
cp $tomcatdir/conf/server.xml $tomcatdir/conf/server.xml 3.修改server.xml
a.注释一下：（tomcat注释用： ） ###如何也想保留http访问，可以不注释
b.取消下面注释
c.增加keystoreFile和keystorePass
keystoreFile=跟keystore文件位置
keystorePass=跟当时keytool命令执行时输入的密码
4. 重启tomcat
# ../bin/catalina.sh stop && ../bin/catalina.sh start
Using CATALINA_BASE: /home/pms/apache-tomcat-6.0.44
Using CATALINA_HOME: /home/pms/apache-tomcat-6.0.44
Using CATALINA_TMPDIR: /home/pms/apache-tomcat-6.0.44/temp
Using JRE_HOME: /home/pms/jdk1.7.0_65
Using CLASSPATH: /home/pms/apache-tomcat-6.0.44/bin/bootstrap.jar
Using CATALINA_BASE: /home/pms/apache-tomcat-6.0.44
Using CATALINA_HOME: /home/pms/apache-tomcat-6.0.44
Using CATALINA_TMPDIR: /home/pms/apache-tomcat-6.0.44/temp
Using JRE_HOME: /home/pms/jdk1.7.0_65
Using CLASSPATH: /home/pms/apache-tomcat-6.0.44/bin/bootstrap.jar
# netstat -ntlup | grep -e "80\|443"
tcp 0 0 0.0.0.0:80 0.0.0.0:* LISTEN 21960/java
tcp 0 0 0.0.0.0:443 0.0.0.0:* LISTEN 21960/java
tcp 0 0 127.0.0.1:8005 0.0.0.0:* LISTEN 21960/java
tcp 0 0 0.0.0.0:8009 0.0.0.0:* LISTEN 21960/java
#
5. successful ！
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