Centos6.5 Building a Java development environment

First, install the JDK1. See if the Linux-brought JDK is installed

Java–version

If OpenJDK appears, it is best to uninstall OPENJDK first, installing Sun's jdk.

2. View JDK Information

Rpm-qa|grep Java

3. Uninstall OPENJDK and do the following:

Rpm-e--nodeps tzdata-java-2012c-1.el6.noarchrpm-e--nodeps java-1.7.0-openjdk-1.7.0.45-1.45.1.11.1.el6.x86_64

4. Create a new Java installation directory

Mkdir/usr/java

5. Unzip and install the previously downloaded JDK

TAR-ZXVF  jdk-7u71-linux-i586.tar.gz

6. Adding Java environment variables to the profile

Vi/etc/profileexport Java_home=/usr/java/jdk1.7.0_71export classpath=.:%java_home%/lib/dt.jar:%java_home%/lib/ Tools.jarexport path= $PATH: $JAVA _home/bin

7. Immediate entry into force of the document

Source/etc/profile     //or reboot

8. Check if the installation is successful

Java-version

Second, install the TOMCAT1. Upload the downloaded tomcat.tar.gz to/var/local below (the path can be selected by yourself), then unzip

TAR-ZXVF  apache-tomcat-7.0.57.tar.gz

2. Move the uploaded tomcat to a directory and change the name

MV APACHE-TOMCAT-7.0.57/MV apache-tomcat-7.0.57 TOMCAT7

3. Start Tomcat

./startup.sh

Direct access to the Tomcat default address after startup

4. Turn off the firewall when you cannot access it

Service Iptables Stop

5. Set up boot from boot

First method: Increase the Tomcat and JAVA_HOME environment variables under/etc/rs.local

Vi/etc/rs.localjava_home=/usr/java/jdk1.7.0_71export java_home/tomcat7/bin/startup.sh

Here is a bit to explain, rc.local before/etc/profile execution, so will not get the Java environment variable, so before startup.sh to add code java_home

III. Installation of Oracle

Official Installation Guide: https://docs.oracle.com/cd/E11882_01/install.112/e24323/toc.htm#i1011296

Reference article: http://blog.csdn.net/attagain/article/details/38331433

1, hardware requirements (this is not the focus, crossing network) 2, software Requirements 2.1 view dependent packages

Rpm-q binutils compat-libcap1 compat-libstdc++-33-3.2.3 gcc gcc-c++ glibc glibc-devel ksh libgcc libstdc++ libstdc++-deve L Libaio Libaio-devel make Sysstat  

In addition to the packages mentioned on the official website, the following packages are also indicated when installing:
unixODBC-2.2.11
unixodbc-devel-2.2.11
elfutils-libelf-devel-0.97
pdksh-5.2.14

2.2 Install the required packages in Yum mode

Yum-y install binutils compat-libcap1 compat-libstdc++-33-3.2.3 gcc gcc-c++ glibc glibc-devel ksh libgcc libstdc++ libstd C++-devel Libaio Libaio-devel Make Sysstat  

2.3 Installing LIBXP

This library, this must be installed, otherwise the installation of Oracle will appear Java Exception.

Yum-y Install LIBXP

3. Environment Configuration 3.1 Turn off firewall, disable SELinux

Chkconfig iptables off

# vi/etc/selinux/configselinux=disabled

and then reboot.

3.2 Modifying machine names (typically default equals)

Here/etc/sysconfig/network in the hostname to be consistent with the/etc/hosts, if the same will not be modified

3.3 Setting up Users and Groups

The user names and groups created here will help you choose when you install Oracle. Otherwise, no users and groups are installed.

Set up a group Oinstall

Groupadd Oinstall

Set up a group DBA

Groupadd dba

Add user Oracle and add it to Oinstall and DBA groups

USERADD-G oinstall-g dba Oracle

Test if Oracle account is established

ID Oracle

Create a new password for Oracle

passwd Oracle

3.4 Creating an Oracle installation folder and a data storage folder

Mkdir-p/opt/oracle/mkdir-p/opt/oracle/orainventorychown-r oracle:oinstall/opt/oraclechmod-r 775/opt/oracle

3.5 Configuring System Kernel Parameters

Vi/etc/sysctl.conf

Add the following parameters:

FS.AIO-MAX-NR = 1048576fs.file-max = 6815744kernel.shmmni = 4096kernel.sem = 32000 E = 9000 65500net.core.rmem_default = 262144net.core.rmem_max = 4194304net.core.wmem_default = 262144net.core.wmem_max = 1048576

Enable the changes you just made

# sysctl-p

3.6 Modifying the number of processes and the maximum number of sessions

Edit/etc/security/limits.conf

Vi/etc/security/limits.conforacle  Soft        nproc   2047oracle  hard        nproc   16384oracle  Soft        nofile  1024oracle  hard        nofile  65536

3.7 Set the association information, execute the following command, modify the associated file/etc/pam.d/login

Vi/etc/pam.d/login

Join:

Session Required/lib/security/pam_limits.sosession Required Pam_limits.so

3.8 Modify the system boot environment parameters, execute the following command, modify the system boot environment parameter file

Vi/etc/profile

Add after Pathmunge:

if [$USER = "Oracle"]; Then    if [$SHELL = "/bin/ksh"], then        ulimit-p 16384        ulimit-n 65536    else        ulimit-u 16384-n 65536
   fifi

3.9 Switching users, configuring Oracle User Environment variables

Vi. bash_profileoracle_base=/opt/oracleoracle_home= $ORACLE _base/product/11.2.0/dbhome_1/bin/  (Different versions of the ORACLE installation directory may not be the same, here is 11.2.0) Oracle_sid=sims (db instance, own definition) ld_library_path= $ORACLE _home/libpath= $PATH: $ORACLE _ Home/bin: $HOME/bin export oracle_base oracle_home oracle_sid ld_library_path PATH

The official website recommends not to set up the installation folder that is $oracle_home, but I suggest that it is established here, because not set up good words, the back of the DBCA, NETCA and other commands can not find

Make settings effective

Source/home/oracle/.bash_profile

3.10 Installation

Put the downloaded Oracle file under/opt/oracle

su-oracle$ cd/opt/oracle$ Unzip linux.11gr2_database_1of2.zip$ unzip Linux.11gr2_database_2of2.zip

3.11 Fix Chinese garbled before installation

Echo $LANG If it's not English, set it up as follows

Export Lang=en_us

3.12 Switch to graphical interface installation

If remote, you need to install remote software, otherwise you will not be able to enter the graphical installation interface;
If the operation is directly on the server, it is not necessary, so that when installing CentOS, you need to choose Desktop installation

cd/opt/oracle/databse$./runinstaller

The graphical interface installation process can refer to: http://www.21ops.com/linux/7296.html/comment-page-1

Note the points:

The first step of the mailbox can not be written; installation mode I selected the single database installation, only the software body installed, no database and monitoring, so installation needs to create a database and configuration monitoring.
Here to pay attention, I see a lot of information on the Internet is to create a database and then configure the monitoring, I do not know how this is done, but I in the actual operation of the time,
Create a database first is impossible to create, be sure to configure monitoring first!

4 after the installation is complete, Oracle User Login 4.1 configures the listener:

Step by step, next.

4.2 Create a database:

Dbca

Note the character set that piece remember to choose Chinese
(if Oracle_home is not specified, you will not be able to use these commands, so you can first look at your current oracle_home, echo $ORACLE _home)

4.3 Testing Whether the installation was successful

To view the listening status:

Lsnrctl status

Database connection:

Sqlplus/as sysdbaconn System/[email protected] (here I changed all the user's passwords to 123456 when I created the database)

in this case, the Oracle one-CentOS6 database was successfully installed.

Four, CentOS6 start ORACLE1. Start the database manually

Log in with an Oracle user

$lsnrctl Start$sqlplus/as Sysdbasql>startup

Then we can manipulate the database.

2. Start the database automatically 2.1 root user login

Modify Oratab

#vi/etc/oratabsims:/opt/oracle/product/11.2.0/dbhome_1:y (n to Y) esc:wq!

Save

2.2 Modifying Dbstart,dbshut

#vi/opt/oracle/11.2.0/bin/dbstartoracle_home_listner= $ORACLE _home (formerly $ $) esc:wq!

#vi/opt/oracle/11.2.0/bin/dbshutoracle_home_listner= $ORACLE _home (formerly $ $) esc:wq!

2.3 Adding content to rc.local

#vi/etc/rc.d/rc.local

Add the following to the file

Su oracle-lc "/opt/oracle/product/11.2.0/dbhome_1/bin/lsnrctl start" su oracle-lc "/opt/oracle/product/11.2.0/dbhome _1/bin/dbstart "esc:wq!

Done!

Centos6.5 Building a Java development environment