1: uninstall the built-in OpenJDK
2: Install JDK1.6
3: install Tomcat
4: Configure Tomcat to start in daemon mode
The following is officially started:
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1: uninstall the built-in OpenJDK
2: Install JDK1.6
Refer:
(Internet) http://www.cnblogs.com/sixiweb/archive/2012/11/25/2787684.html
Or the previous page:
(Intranet) CentOS uninstall the built-in OpenJDK and install the Sun JDK method.
Original article:
View the current system jdk: rpm-qa | grep jdk
Result:
[Root @ dc-01 java] # rpm-qa | grep jdk
Java-1.6.0-openjdk-1.6.0.0-1.45.1.11.1.el6.i686
Detach:
[Root @ dc-01 java] # yum-y remove java-1.6.0-openjdk-1.6.0.0-1.45.1.11.1.el6.i686
Wait for a while to Complete.
Download Sun's JDK. I downloaded
Jdk-6u37-linux-i586-rpm.bin
For a 64-bit system, download:
Jdk-6u37-linux-x64-rpm.bin
And other 64-bit dedicated packages
Create a java directory under the/usr directory and put the downloaded file under the/usr/java directory
Change the file to an executable file (chmod 777 ):
[Root @ dc-01 java] # chmod 777 jdk-6u37-linux-i586-rpm.bin
Then execute this file to install it:
[Root @ dc-01 java] #. /jdk-6u37-linux-i586-rpm.binUnpacking... checksumming... extracting... unZipSFX 5.50 of 17 February 2002, by Info-ZIP (Zip-Bugs@lists.wku.edu ). inflating: jdk-6u37-linux-i586.rpm inflating: sun-javadb-common-10.6.2-1.1.i386.rpm inflating: sun-javadb-core-10.6.2-1.1.i386.rpm inflating: sun-javadb-client-10.6.2-1.1.i386.rpm inflating: sun-javadb-demo-10.6.2-1.1.i386.rpm inflating: sun-javadb-docs-10.6.2-1.1.i386.rpm inflating: sun-javadb-javadoc-10.6.2-1.1.i386.rpm Preparing... ######################################## ### [100%] 1: jdk ####################################### #### [2, 100%] Unpacking JAR files... rt. jar... jsse. jar... charsets. jar... tools. jar... localedata. jar... plugin. jar... javaws. jar... deploy. jar... installing JavaDBPreparing... ######################################## ### [100%] 1: sun-javadb-common ################################### ####### [17%] 2: sun-javadb-core ################################### ####### [33%] 3: sun-javadb-client ################################### ####### [1, 50%] 4: sun-javadb-demo ################################### ####### [67%] 5: sun-javadb-docs ################################### ####### [83%] 6: sun-javadb-javadoc ################################### ######## [1, 100%] Java (TM) SE Development Kit 6 successfully installed. product Registration is FREE and has des between benefits: * Notification of new versions, patches, and updates * Special offers on Oracle products, services and training * Access to early releases and documentationProduct and system data will be collected. if your configurationsupports a browser, the JDK Product Registration form willbe presented. if you do not register, none of this informationwill be saved. you may also register your JDK later byopening the register.html file (located in the JDK installationdirectory) in a browser. for more information on what data Registration collects andhow it is managed and used, see: http://java.sun.com/javase/registration/JDKRegistrationPrivacy.html
Press Enter to continue .....
Press enter.
Done appears.
The installation is now complete.
Configure JDK:
Vi/etc/profile open the profile file and add the following at the end of the profile file:
JAVA_HOME =/usr/java/jdk1.6.0 _ 37 PATH = $ JAVA_HOME/bin: $ PATHCLASSPATH =.: $ JAVA_HOME/lib/dt. jar: $ JAVA_HOME/lib/tools. jarexport JAVA_HOMEexport PATHexport CLASSPATH
Save and close the profile file, and run the source/etc/profile command to make the modification take effect.
Run java-version to check the java version:
[Root @ dc-01 java] # java-version
Java version "1.6.0 _ 37" Java (TM) SE Runtime Environment (build 1.6.0 _ 37-b06) Java HotSpot (TM) Client VM (build 12-b01, mixed mode, sharing) [root @ dc-01 java] #
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So far, the entire installation process is complete.
3: install Tomcat
Download apache-tomcat-7.0.33.tar.gz. Decompress:
Tar -xzvfapache-tomcat-7.0.33.tar.gz
Copy the decompressed folder to/usr/local/tomcat:
Cp-Rapache-tomcat-7.0.33/usr/local/tomcat
Go to the tomcat directory to set tomcat memory usage and other configurations:
Cd/usr/local/tomcat/bin
Vi daemon. sh
Add the following content at the beginning of the text (make sure to modify the jdk and other directories according to your actual situation ):
# Chkconfig: 2345 20 80 # description: simple example to start tomcatJAVA_HOME =/usr/java/jdk1.6.0 _ 37CATALINA_HOME =/usr/local/modules = "-Xms1024m-Xmx4096m-XX: permSize = 256 m-XX: MaxPermSize = 512 m"
4: Configure Tomcat to start in daemon mode
Copy daemon. sh to the startup directory, install the service, and test the service:
Compile and install commons-daemon first:
Install gcc first, because it is required during compilation.
Yum install gcc
Create a tomcat user to run the tomcat service:
Using root in the production environment is not safe, so
Useradd-s/sbin/nologin tomcat
Chown-Rtomcat: tomcat/usr/local/tomcat
Started with the operating system as a service
# Tar-xzvf commons-daemon-native.tar.gz
# Cd commons-daemon-1.0.10-native-src/unix
#./Configure
# Make
# Cp jsvc ../..
# Cd ../..
Cp daemon. sh/etc/init. d/tomcat
Chmod 755/etc/init. d/tomcat
Chkconfig -- add tomcat
Chkconfig tomcat on
Chkconfig -- list tomcat
Display:
Tomcat 0: off 1: off 2: on 3: on 4: on 5: on 6: off confirm 2 ~ 5. If the status is on, OK.
Start Tomcat:
Service tomcat start
Add firewall configuration to allow port 8080:
# Vi/etc/sysconfig/ipdables
Add one to allow ssh:
-A input-m state -- state NEW-m tcp-p tcp -- dport 8080-j ACCEPT
Save and restart the iptables service:
# Service iptables restart
Test:
Local test:
Wgethttp: // localhost: 8080/
Test from other machines:
Enter http: // localhost: 8080/in the browser/
Check whether the website can be opened.
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Refer to the blog below during the configuration process:
Http://batizhao.github.com/linux/2012/07/17/install-tomcat7-on-centos/
To prevent loss, repost it:
Install Tomcat 7 on CentOS6
1. Download
# wget http://mirror.bit.edu.cn/apache/tomcat/tomcat-7/v7.0.29/bin/apache-tomcat-7.0.29.tar.gz
2. Installation
# tar -xzvf apache-tomcat-7.0.29.tar.gz # mv apache-tomcat-7.0.29 /opt/tomcat7 # cd /opt/tomcat7 # bin/startup.sh
3. Configuration
Using root in the production environment is not safe, so
# useradd -s /sbin/nologin tomcat # chown -R tomcat:tomcat /opt/tomcat7
Started with the operating system as a service
# cd /opt/tomcat7/bin # tar -xzvf commons-daemon-native.tar.gz # cd commons-daemon-1.0.10-native-src/unix # ./configure # make # cp jsvc ../.. # cd ../..
After the daemon. sh comment, add the following five elements to the text
# vim daemon.sh ---- # chkconfig: 2345 10 90 # description: Starts and Stops the Tomcat daemon. JAVA_HOME=/usr/java/jdk1.6.0_31 CATALINA_HOME=/opt/tomcat7 CATALINA_OPTS="-Xms1024m -Xmx2048m -XX:PermSize=256m -XX:MaxPermSize=512m"
Add to service
# cp daemon.sh /etc/init.d/tomcat # chkconfig --add tomcat
Check
# Chkconfig -- list | grep tomcat 0: Disable 1: Disable 2: Enable 3: Enable 4: Enable 5: Enable 6: Disable
Open Port
# vim /etc/sysconfig/iptables ---- -A INPUT -m state --state NEW -m tcp -p tcp --dport 8080 -j ACCEPT # service iptables restart