Redhat installing JDK, Tomcat, MySQL

Redhat Installing the JDK

1. use securecrt to upload the package, you need to register with the Redhat website when using yum install Lrzsz , generally commercial version, registration can be installed lrzsz installation

2. Enter the usr/local directory to create the Java Directory folder:cd/usr/local

Create: Mkdir/usr/local/java

3. Copy the uploaded file compression package to the directory : cp Jdk-8u171-linux-x64.tar.gz/usr/local/java

4. go to Java directory:Cd/usr/local/java unzip in current directory:TAR-ZXVF Jdk-8u171-linux-x64.tar.gz

after decompression there will be a jdk1.8.0_171 folder

6. Configure environment variables:VI /etc/profile Press i to enter edit mode at the end, add the following:

java_home=/usr/local/jdk1.8.0_171

Classpath= $JAVA _home/lib/

Path= $PATH: $JAVA _home/bin

Export PATH Java_home CLASSPATH

7. Restart Machine Execution command:source/etc/profile java-version

The installation succeeds when the following interface appears:

Installing Tomcat

1. similarly create a Tomcat folderunder/usr/local:cd/usr/local mkdir / usr /local/tomcat

2. Copy the uploaded files to the specified directory: CP Apache-tomcat-9.0.8.tar.gz/usr/local/tomcat

3. Proceed to the development directory to begin unpacking: cd/usr/local/tomcat TAR-ZXVF apache-tomcat-9.0.8.tar.gz

after decompression there will be a folder: apache-tomcat-9.0.8

4. Enter under Tomcat/bin to start the service:cd/usr/local/tomcat/apache-tomcat-9.0.8/bin

5. Start the service:./startupsh appears as follows:

The service started successfully.

install MySQL

1. test whether MySQL has been installed , enter command:mysql-server

the following message appears stating that MySQL has not been installed

2. you need to download it manually and then install mysql-server, which uses the wget command (yum install wget This command is important, or the MySQL package cannot be loaded .

Local download http://repo.mysql.com/mysql-community-release-el7-5.noarch.rpm

3. use the RZ command to upload to redhat , terminal input command:rpm -IVH mysql-community-release-el7-5.noarch.rpm

Check if installation is successful, such as installation : ls-1/etc/yum.repos.d/mysql-community*

Install the Mysql-server as soon as it is installed.

Yum Install Mysql-server

start service mysqld Start,

To create a root administrator: mysqladmin-u root Password 123456

Log in to MySQL: mysql-u root-p

If the installation is successful:

Redhat installing JDK, Tomcat, MySQL