CentOS 7系統下程序部署（JAVA+tomcat+mysql）

CentOS 7系統安裝和配置請到網上查詢相關資料（百度經驗裏有），注意安裝的時候，必定要選擇安裝的軟件和設置網絡鏈接爲打開，否則系統默認按照最小化安裝，禁用網絡鏈接（後期配置很煩）

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1、安裝和配置JAVA開發環境

[root@promote test]# java -version         ——查看java版本信息

openjdk version "1.8.0_65"

OpenJDK Runtime Environment (build 1.8.0_65-b17)

OpenJDK 64-Bit Server VM (build 25.65-b01, mixed mode)

[root@promote test]#

[root@promote test]# rpm -qa | grep java         ——進一步查看JDK信息

javapackages-tools-3.4.1-11.el7.noarch

java-1.8.0-openjdk-1.8.0.65-3.b17.el7.x86_64

java-1.7.0-openjdk-headless-1.7.0.91-2.6.2.3.el7.x86_64

python-javapackages-3.4.1-11.el7.noarch

java-1.8.0-openjdk-headless-1.8.0.65-3.b17.el7.x86_64

java-1.7.0-openjdk-1.7.0.91-2.6.2.3.el7.x86_64

tzdata-java-2015g-1.el7.noarch

[root@promote test]#

/*上述標記顏色的爲已安裝的java版本，下面5條指令爲卸載指令*/

[root@promote test]# rpm -e --nodeps java-1.8.0-openjdk-1.8.0.65-3.b17.el7.x86_64

[root@promote test]# rpm -e --nodeps java-1.7.0-openjdk-headless-1.7.0.91-2.6.2.3.el7.x86_64

[root@promote test]# rpm -e --nodeps java-1.8.0-openjdk-headless-1.8.0.65-3.b17.el7.x86_64

[root@promote test]# rpm -e --nodeps java-1.7.0-openjdk-1.7.0.91-2.6.2.3.el7.x86_64

[root@promote test]# rpm -e --nodeps tzdata-java-2015g-1.el7.noarch

[root@promote test]#

[root@promote test]# rpm -qa | grep java         ——從新查看JDK信息（已卸載）

javapackages-tools-3.4.1-11.el7.noarch

python-javapackages-3.4.1-11.el7.noarch

[root@promote test]#

 

從Oracle網站上下載最新的JDK文件

下載網址：http://www.oracle.com/technetwork/java/javase/downloads/index.html

JDK版本：jdk-8u111-linux-x64.rpm ——這裏選擇下載rpm格式的，方便安裝

 

用瀏覽器下載完成後，默認是存放在/home/test/downloads文件夾下（安裝了桌面環境），執行cd /home/test/downloads/ 跳轉到downloads目錄下（裝了gnome和網絡應用軟件，也能夠直接鏈接網址下載）

 

[root@promote test]# cd /home

[root@promote home]# ls

test

[root@promote home]# cd test/

[root@promote test]# ls

Desktop Documents Downloads Music Pictures Public Templates Videos

[root@promote test]# cd Downloads/

[root@promote Downloads]# ls

jdk-8u111-linux-x64.rpm         ——找到下載的jdk文件後將文件移到/usr/local目錄下

[root@promote Downloads]# mv jdk-8u111-linux-x64.rpm /usr/local/

[root@promote Downloads]# cd /usr/local

[root@promote local]# ls

bin etc games include jdk-8u111-linux-x64.rpm lib lib64 libexec sbin share src

[root@promote local]#

[root@promote local]# rpm -ivh jdk-8u111-linux-x64.rpm     ——執行安裝指令

Preparing... ################################# [100%]

Updating / installing...

1:jdk1.8.0_111-2000:1.8.0_111-fcs ################################# [100%]

Unpacking JAR files...

tools.jar...

plugin.jar...

javaws.jar...

deploy.jar...

rt.jar...

jsse.jar...

charsets.jar...

localedata.jar... ——安裝完畢，JDK默認安裝在/usr/java中

[root@promote local]# ls

bin etc games include jdk-8u111-linux-x64.rpm lib lib64 libexec sbin share src

[root@promote local]# cd ..

[root@promote usr]# ls ——跳轉到/usr/java/，查看目錄中的的文件

bin etc games include java lib lib64 libexec local sbin share src tmp

[root@promote usr]# cd java/

[root@promote java]# ll

total 4

lrwxrwxrwx. 1 root root 16 Nov 17 21:33 default -> /usr/java/latest

drwxr-xr-x. 9 root root 4096 Nov 17 21:33 jdk1.8.0_111

lrwxrwxrwx. 1 root root 22 Nov 17 21:33 latest -> /usr/java/jdk1.8.0_111

[root@promote java]# cd

[root@promote ~]#

/*執行下面三條指令驗證java安裝結果，都出來指令即說明安裝成功*/

[root@promote ~]# java

[root@promote ~]# javac

[root@promote ~]# java -version

 

至此，Centos中java安裝完畢！

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配置環境變量

個人機器安裝完jdk-7-linux-x64.rpm後不用配置環境變量也能夠正常執行javac、java –version操做，但爲了之後的使用方便，仍是配置一下，具體操做以下：

修改系統環境變量文件

vi + /etc/profile

向文件裏面追加如下內容：

JAVA_HOME=/usr/java/jdk1.8.0_111

JRE_HOME=/usr/java/jdk1.8.0_111/jre

PATH=$PATH:$JAVA_HOME/bin:$JRE_HOME/bin

CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$JRE_HOME/lib

export JAVA_HOME JRE_HOME PATH CLASSPATH

 

使修改生效

[root@localhost ~]# source /etc/profile   //使修改當即生效

[root@localhost ~]# echo $PATH   //查看PATH值

 

查看系統環境狀態

[root@localhost ~]# echo $PATH

/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin:/usr/java/jdk1.8.0_25/bin:/usr/java/jdk1.8.0_25/jre/bin

[root@promote bin]# $JAVA_HOME
bash: /usr/java/jdk1.8.0_111: Is a directory

[root@promote bin]# $JRE_HOME
bash: /usr/java/jdk1.8.0_111/jre: Is a directory

[root@promote bin]#

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2.安裝和配置tomcat

網上下載tomcat到本機，默認存放在/home/test/Downloads/目錄下

下載網址：http://tomcat.apache.org/download-80.cgi

Tomcat版本包:apache-tomcat-8.0.39.tar.gz

 

[root@promote ~]# cd /home/test/

[root@promote test]# ls

Desktop Documents Downloads Music Pictures Public Templates Videos

[root@promote test]# cd Downloads/

[root@promote Downloads]# ls         ——進入Downloads目錄查看文件

apache-tomcat-8.0.39.tar.gz

[root@promote Downloads]# mv apache-tomcat-8.0.39.tar.gz /usr/local

[root@promote Downloads]# cd /usr/local

[root@promote local]# ls         ——移動到/usr/local/目錄下

apache-tomcat-8.0.39.tar.gz bin etc games include lib lib64 libexec sbin share src

 

[root@promote local]# mkdir tomcat8         ——建立tomcat目錄並解壓文件到此目錄

[root@promote local]# tar -zxvf apache-tomcat-8.0.39.tar.gz -C /usr/local/tomcat8/

[root@promote local]# ls

apache-tomcat-8.0.39.tar.gz bin etc games include lib lib64 libexec sbin share src tomcat8

[root@promote local]#

[root@promote local]# cd tomcat8/

[root@promote tomcat8]# ls

apache-tomcat-8.0.39             ——發現多一級目錄

[root@promote tomcat8]# cd apache-tomcat-8.0.39/

[root@promote apache-tomcat-8.0.39]# ls             ——進入目錄後纔是tomcat安裝文件

bin conf lib LICENSE logs NOTICE RELEASE-NOTES RUNNING.txt temp webapps work

 

/*執行以下語句更換tomcat的安裝目錄，並刪除原目錄*/

[root@promote local]# mv /usr/local/tomcat8/apache-tomcat-8.0.39/* /usr/local/tomcat8/

[root@promote local]# cd tomcat8/

[root@promote tomcat8]# ls

apache-tomcat-8.0.39 bin conf lib LICENSE logs NOTICE RELEASE-NOTES RUNNING.txt temp webapps work

[root@promote tomcat8]# cd apache-tomcat-8.0.39/

[root@promote apache-tomcat-8.0.39]# ls

[root@promote apache-tomcat-8.0.39]# cd ..

[root@promote tomcat8]# rm -rf apache-tomcat-8.0.39/

[root@promote tomcat8]# ls                 ——子一級目錄已刪除

bin conf lib LICENSE logs NOTICE RELEASE-NOTES RUNNING.txt temp webapps work

[root@promote tomcat8]# cd ..

[root@promote local]# ls

apache-tomcat-8.0.39.tar.gz bin etc games include lib lib64 libexec sbin share src tomcat8

[root@promote local]# rm -rf apache-tomcat-8.0.39.tar.gz ——刪除安裝包

[root@promote local]#

 

至此，tomcat安裝完成，tomcat配置的相關操做（包括修改端口、配置JVM和默認的java環境）網上資源有不少，此處不作描述。（後期若是有時間再整理）

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啓動和調試tomcat

[root@promote local]# /usr/local/tomcat8/bin/startup.sh ——啓動tomcat

Using CATALINA_BASE: /usr/local/tomcat8

Using CATALINA_HOME: /usr/local/tomcat8

Using CATALINA_TMPDIR: /usr/local/tomcat8/temp

Using JRE_HOME: /usr/java/jdk1.8.0_111/jre

Using CLASSPATH: /usr/local/tomcat8/bin/bootstrap.jar:/usr/local/tomcat8/bin/tomcat-juli.jar

Tomcat started.                                                     ——tomcat啓動成功，本機能夠正常登陸

[root@promote local]#

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Tomcat啓動成功後，並不意味着工做的結束，還須要放開tomcat配置的端口，不然外網是沒法訪問tomcat發佈的應用程序的，具體操做以下（假設須要放開8080和80端口）：

[root@promote bin]# firewall-cmd --zone=public --add-port=8080/tcp --permanent

success

[root@promote bin]# firewall-cmd --zone=public --add-port=80/tcp --permanent

success

[root@promote bin]# firewall-cmd --reload

success

[root@promote bin]#

 

——至此，tomcat的安裝、配置和發佈即完成。

 

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3.安裝和配置mysql

 

CentOS 7的yum源中沒有正常安裝MySQL時的mysql-sever文件，須要去官網上下載

 

 

[root@promote local]# wget http://repo.mysql.com//mysql57-community-release-el7-9.noarch.rpm

[root@promote local]# rpm -ivh mysql57-community-release-el7-9.noarch.rpm

[root@promote local]# yum install mysql-community-server

 

安裝完畢後，密碼修改有些問題，參照：http://blog.csdn.net/yzl11/article/details/52643276

或者參照：《Mysql-01.安裝和配置》中Linux系統下安裝和配置mysql章節：https://my.oschina.net/u/3016592/blog/784166

 

MySql安裝完畢後，建立數據庫以後執行受權指令

grant all on db_name.* to user_name@localhost identified by 'password'; ——本地用戶

grant all on db_name.* to user_name@'%' identified by 'password'; ——全部用戶

grant all on db_name.* to user_name@'IP' identified by 'password'; ——指定IP用戶

 

受權完畢後，默認狀況下是沒法訪問的，由於CentOS防火牆屏蔽了mysql的3306端口，須要開啓CentOS的3306端口，執行以下操做；

[root@promote ~]#

[root@promote ~]# firewall-cmd --zone=public --add-port=3306/tcp --permanent

success

[root@promote ~]# firewall-cmd --reload

success

[root@promote ~]#

 

另外，也能夠執行以下指令中止或者禁用防火牆（不推薦）

systemctl stop firewalld.service #中止

systemctl disable firewalld.service #禁用