Java Web Environment Development under Linux (CentOS)

First, install the JDK

Baidu search JDK, into the http://www.oracle.com/technetwork/java/javase/downloads/index.html to find their own version of the JDK Linux compression package;

　　

Copy out the compressed package ( Click Download First, and then copy the resource link from the download interface )

Create a directory where the JDK resides in the appropriate location on the server

　　

wget+ copy of the JDK download link, download the JDK to the directory you created

　　

File Rename with mv+ original filename + new file name

　　

TAR-XZVF + filename for file decompression

　　

To configure the JDK environment variable, open/etc/profile (vi/etc/profile) and add the following on the last side (Tell the System JDK directory):

Export java_home=/home/java/jdk1.8.0_144

Export jre_home=/home/java/jdk1.8.0_144/jre

Exportclasspath=.: $JAVA _home/lib/dt.jar: $JAVA _home/lib/tools.jar: $JRE _home/lib

Export path= $PATH: $JAVA _home/bin

Source/etc/profile update for configuration to take effect

Java-version and Javac-version test JDK

　　

Two versions were found to be inconsistent due to a previous 1.7.0_121 on the system, the workaround is as follows:

　　

Note that there is no problem with the configuration, except that the system does not use a new JDK when calling Java commands

　　

It is found that the system comes with the/usr/bin/java.

mv/usr/bin/java/usr/bin/java-1.8.0_144, rename the file

Ln-s $JAVA _home/bin/java/usr/bin/java to take your profile chain

　　

Both Java and JAVAC versions are consistent with the JDK configuration complete.

Ii. Configuring Tomcat

Baidu search Tomcat, into the http://tomcat.apache.org/download-80.cgi to find their own version of the Tomcat Linux compression package;

　　

Copy out the compressed package ( Click Download First, and then copy the resource link from the download interface )

Create a directory where the JDK resides in the appropriate location on the server

wget+ copy of the tomcat download link, download tomcat to the directory you created

TAR-XZVF + filename for file decompression

Enter./startup.sh to start Tomcat

　　

After startup still can't access the homepage, consider the problem of firewall, I use centos6.6

Open firewall:chkconfig iptables on (restart in effect);Service iptables start (effective immediately)

　　View the ports that are open:/etc/init. D/iptables status

　　

Can be found only open port 22nd, need to open 8080 Port use command:iptables -A INPUT -p TCP --dport 8080 - J ACCEPT

< Span class= "PLN" > /etc /rc./init./iptables Save Save Settings

<　　Span class= "pun" > /etc< Span class= "pun" >/init./iptables restart restart firewall

　　

At this point, you can see that port 8080 is open

Curl localhost:8080 See if you can open the home page

　　

Get to Main page configuration complete

　　

Java Web Environment Development under Linux (CentOS)