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Apache + Tomcat configuration

Ritu Kama
Ranch Hand

Joined: Sep 10, 2001
Posts: 72
Hi,
I am pretty sure, someone will be able to help me on this. I installed Tomcat standalone and did some performance testing with my servlet. The results are quite bad.
I am hoping that if I configure Tomcat to work with Apache, then Apache will take care of the performance required with hundreds of simultanoeus connections and might be able to give better performance. Am I right or wrong!
Also if somebody can provide a link to website/How To guide to setting up Tomcat to run with Apache, it will be very useful.
Thanks
Ritu
Prakash Dwivedi
Ranch Hand

Joined: Sep 28, 2002
Posts: 452
You are right ritu, recently, just to improve performance i also used 5 tomcats with apache server using mod_jk, following links will probably help u how to setup connection between two
http://raibledesigns.com/tomcat/index.html


Prakash Dwivedi (SCJP2, SCWCD, SCBCD)
"Failure is not when you fall down, Its only when you don't get up again"
Ritu Kama
Ranch Hand

Joined: Sep 10, 2001
Posts: 72
Thanks a lot! I will try it out and let you know.
Ritu
robor net
Greenhorn

Joined: Jan 22, 2003
Posts: 1
题目:Windows2000 下整合Apache2与Tomcat4
作者:robornet
日期:2002-10-30
原由:搞了一段时间的java项目,到分发的时候了,可找不到一份最新的Apache2与Tomcat4的整合配置,遂看了半天的jakarta在线资料,并参照以前网友的文章,
写了这篇配置文档,以作参考,欢迎斧正!
目录:
一、软件准备
二、软件安装
三、首次配置及测试
四、整合配置
五、全线测试
六、不足
七、感谢
八、说明
步骤:
一、软件准备:
假设你有一台能正常运行win2000的硬软软件环境。
1.j2sdk1.4.1: 到http://java.sun.com/j2se/1.4.1/download.html下载!(注意是Windows (all languages, including English)的sdk版)
2.Apache2.0.43: 到http://www.apache.inetcosmos.org/dist/httpd/binaries/win32/apache_2.0.43-win32-x86-no_ssl.msi 下载!
3.Tomcat4.1.12:到 http://jakarta.apache.org/builds/jakarta-tomcat-4.0/release/v4.1.12/bin/jakarta-tomcat-4.1.12.exe 下载!
4.mod_jk.dll: 到http://jakarta.apache.org/builds/jakarta-tomcat-connectors/jk/release/v1.2.0/bin/win32/mod_jk-2.0.42.dll下载!
(说明,由于mod_jk2-2.0.43.dll与Apache2.0.43配置没成功,现用mod_jk-2.0.42.dll代替)
二、软件安装:
(1)安装j2sdk:
1.按照安装向导进行安装(一般安装到C:\j2sdk1.4.1下,方便下面操作)
(2)安装apache:
1.按照安装向导进行安装(选择安装目录为C:\,方便下面操作;安装成功后其路径为:C:\Apache2)
(3)安装Tomcat:
1.按照安装向导进行安装(更改安装目录为C:\Tomcat4,若只是测试,没必要把tomcat安装成Services,方便下面操作),
其间会要你输入Admin(系统管理员)的口令。
三、首次配置及测试:
对以上安装的软件环境进行首次配置,并测试其环境。
(1)配置--环境变量:
1.新建系统变量JAVA_HOME,其值为:C:\j2sdk1.4.1 //若你没按以上路径安装请更改为正确的路径
2.新建系统变量TOMCAT_HOME,其值为:C:\Tomcat4 //同上
3.新建系统变量CLASSPATH,其值为:%JAVA_HOME%\lib;%TOMCAT_HOME%\lib
(2)修改错误:
1.Apache2.0.43有一个小问题,默认安装成功后在Apache2主目录下的htdocs目录中没有index.html文件,你须将该目录下的index.html.en改名为index.html
(3)测试默认服务:
请先运行Apache2与Tomcat4.
1.打开浏览器,在地址栏中输入:http://localhost 检验:此时能在浏览器中看到Apache2的欢迎界面.说明Apache2工作正常.(注意,Tomcat默认端口为80,
若有其它程序占用,请更改,下面有说明)
2.打开浏览器,在地址栏中输入:http://localhost:8080 检验:此时能在浏览器中看到Tomcat的欢迎界面.说明Tomcat工作正常.(注意,Tomcat默认端口为
8080,若有其它程序占用,请更改,下面有说明)
小结:若到此步骤没有任何错误,那可继续下面的操作,Let' go!
(4)测试你的项目:
现只用Tomcat测试你的项目,为方便此例说明,假设你已有一个项目在E:\Application\OA目录下
(包含index.jsp及其它jsp文件和bean,如WEB-INF\classes\下的servlet、javabean)。
1.设置Tomcat以支持你的项目,打开C:\Tomcat4\conf\server.xml文件,在"</Host>"之前,"</Context>"之后添加
<Context path="/oa" debug="0" docBase="E:\Application\OA" reloadable="true"/>并保存。
说明:Context (表示一个web应用程序 : docBase定义应用程序的路径;path 表示此web应用程序的url的前缀,这样请求的url为http://localhost:8080/oa;
reloadable 这个属性非常重要,如果为true,则tomcat会自动检测应用程序的/WEB-INF/lib 和/WEB-INF/classes目录的变化,自动装载修改或新的bean
及servlet,我们可以在不重起tomcat的情况下看到bean带给jsp的变化。
2.启动你Tomcat4.1.12,在浏览器的地址中输入http://localhost:8080/oa,如你的jsp及bean,servlet没有错误,一般会将你的index.jsp/index.html文件的
内容给执行并显示。
小结:若到此步骤没有任何错误,那可继续下面的操作,Let' go!

四、整合配置:
对Apache与Tomcat做相应的配置,让其共同为你工作。
若Apache2与Tomcat4正运行着,请关闭它们。
(1)配置Apache2:
1.先将下载的mod_jk-2.0.42.dll复制到C:\Apache2\modules下。
2.设置主页文件类型:打开C:\Apache2\conf下的httpd.conf,查找"DirectoryIndex",在index.html的后面添加index.jsp并保存,注意相互之间应有空格。
3.设置虚拟主机,让Apache自动控制html与jsp的解析: 打开C:\Apache2\conf\httpd.conf,在最后加入下面这段代码并保存。
<VirtualHost localhost> //localhost为本机,你可用本机ip
ServerAdmin robornet@robornet.com //你的mail地址
DocumentRoot E:\Application //你的项目组根目录,因为Application下有OA及其它多个项目,因此只能设为E:\Application
ServerName localhost //你的服务名,若你的机器有域名,设为域名,但现用本机作测试
ErrorLog logs/robornet_home_log.txt //错误日志,在C:\Apache2\logs下,可用其它任意名字
CustomLog logs/robornet_Custom_log.txt common //访问日志,在C:\Apache2\logs下,可用其它任意名字
</VirtualHost>
4.设置Apache与Tomcat之间的连接,让Apache遇到jsp文件时,在后台将其交由Tomcat去处理:打开C:\Apache2\conf\httpd.conf,在最后加入下面这段代码并保存。
# Using mod_jk2.dll to redirect dynamic calls to Tomcat
LoadModule jk_module modules/mod_jk-2.0.42.dll //装载模块,用于处理连接
JkWorkersFile "C:/Tomcat4/conf/workers.properties" //设置模块的工作文件,下面会说明
JkLogFile "C:/Tomcat4/logs/mod_jk2.log" //设置模块工作的日志文件,Tocmat启动时会自建
JkMount /servlet/* ajp13 //让Apache支持对servlet传送,用以Tomcat解析
JkMount /*.jsp ajp13 //让Apache支持对jsp传送,用以Tomcat解析
小结:到此Apache的配置基本完成,不过这时启动Apache还不能正常工作。
(2)配置Tomcat4:
1.在C:\Tomcat4\conf下新建一个文件workers.properties 注意文件后缀,建议用EditPlus或UltraEdit建立,若用记事本,记得改名,
不要成了workers.properties.txt了!其内容如下:
workers.tomcat_home=c:\Tomcat4 //让mod_jk模块知道Tomcat
workers.java_home=c:\j2sdk1.4.1 //让mod_jk模块知道j2sdk
ps=\
worker.list=ajp13 //模块版本,现有ajp14了,不要修改
worker.ajp13.port=8009 //工作端口,若没占用则不用修改
worker.ajp13.host=localhost //本机,若上面的Apache主机不为localhost,作相应修改
worker.ajp13.type=ajp13 //类型
worker.ajp13.lbfactor=1 //代理数,不用修改
2.打开C:\Tomcat4\conf下的server.xml文件:查找到"<!-- Define a Coyote/JK2 AJP 1.3 Connector on port 8009 -->",将以前的代码:
<!-- Define a Coyote/JK2 AJP 1.3 Connector on port 8009 -->
<Connector className="org.apache.coyote.tomcat4.CoyoteConnector" port="8009"
minProcessors="5" maxProcessors="75" enableLookups="true" redirectPort="8443"
acceptCount="10" debug="0" connectionTimeout="20000" useURIValidationHack="false"
protocolHandlerClassName="org.apache.jk.server.JkCoyoteHandler"/>
<!-- Define an AJP 1.3 Connector on port 8009 -->
<!--
<Connector className="org.apache.ajp.tomcat4.Ajp13Connector" port="8009" minProcessors="5"
maxProcessors="75" acceptCount="10" debug="0"/>
-->
更改为:
<!-- Define a Coyote/JK2 AJP 1.3 Connector on port 8009 -->
<!--
<Connector className="org.apache.coyote.tomcat4.CoyoteConnector" port="8009"
minProcessors="5" maxProcessors="75" enableLookups="true" redirectPort="8443"
acceptCount="10" debug="0" connectionTimeout="20000" useURIValidationHack="false"
protocolHandlerClassName="org.apache.jk.server.JkCoyoteHandler"/>
-->
<!-- Define an AJP 1.3 Connector on port 8009 -->
<Connector className="org.apache.ajp.tomcat4.Ajp13Connector" port="8009" minProcessors="5"
maxProcessors="75" acceptCount="10" debug="0"/>
并保存后关闭.
小结: 兄弟一定都累了吧!好了,可以来一杯java,好好享受你的成果吧!
五、全线测试:
1.启动Apache2,Tomcat4 。
2.打开你的浏览器,在地址栏中输入http://localhost:8080/oa ,若与上面的测试相同,则Tomcat重新配置后正常!
3.在地址栏中输入http://localhost/oa ,若与http://localhost:8080/oa的结果相同,那恭喜你,Apache2与Tomcat4整合成功了!!!
六、不足:
1.虽用最新的Apache2.0.43与Tomcat4.1.12,但我是用的jk连接的,刚用jk2配置未成功,所以只好写这份文档了!
2.Tomcat还是采用的Tomcat-Standalone,未采用Tomcat-Apache,不过这个大家可以自己完成,这个应不是个问题!
alexey smirnz
Greenhorn

Joined: Jan 22, 2003
Posts: 1
Dear robor net
may I have the same instructions in readable versions.
Thanks a lot.
Alexey.
 
It is sorta covered in the JavaRanch Style Guide.
 
subject: Apache + Tomcat configuration