从零搭建javaWEB服务器

Bertha 。 2022-05-31 23:59 248阅读 0赞

*  从零搭建javaWEB服务器
    
     *  一环境
        
         *  安装java
            
             *  检查当前 安装版本
             *  列出可安装的java版本
             *  安装 java 8
             *  查看当前java版本
             *  配置环境变量
         *  安装tomcat7
         *  安装postgresql 96

# 从零搭建javaWEB服务器 #

## 一.**环境** ##

当前环境:  
centOS 6.5

目标环境:  
java8 + tomcat7 + postgresql 9.6

*  ps: 查看当前系统版本命令

uname -a
    cat /proc/version
    cat /etc/issue

### 1.**安装java** ###

#### **检查当前 安装版本:** ####

yum list installed | grep java

#### **列出可安装的java版本:** ####

yum -y list java*

[root@localhost ~]# yum -y list java*
    Loaded plugins: fastestmirror
    Loading mirror speeds from cached hostfile
    Available Packages
    java-1.5.0-gcj.x86_64                                                         1.5.0.0-29.1.el6                                                 base   
    java-1.5.0-gcj-devel.x86_64                                                   1.5.0.0-29.1.el6                                                 base   
    java-1.5.0-gcj-javadoc.x86_64                                                 1.5.0.0-29.1.el6                                                 base   
    java-1.5.0-gcj-src.x86_64                                                     1.5.0.0-29.1.el6                                                 base   
    java-1.6.0-openjdk.x86_64                                                     1:1.6.0.41-1.13.13.1.el6_8                                       base   
    ... ...

#### **安装 java 8** ####

yum -y install java-1.8.0-openjdk*

[root@localhost ~]# yum -y install java-1.8.0-openjdk*
    Loaded plugins: fastestmirror
    Loading mirror speeds from cached hostfile
    Setting up Install Process
    Resolving Dependencies
    --> Running transaction check
    ---> Package java-1.8.0-openjdk.x86_64 1:1.8.0.151-1.b12.el6_9 will be installed
    ... ...
    ... ...
    Complete!

#### **查看当前java版本** ####

java -version

[root@localhost ~]# java -version
    openjdk version "1.8.0_151"
    OpenJDK Runtime Environment (build 1.8.0_151-b12)
    OpenJDK 64-Bit Server VM (build 25.151-b12, mixed mode)

#### **配置环境变量** ####

vi /etc/profile

追加:

export JAVA_HOME=/usr/lib/jvm/java-1.8.0-openjdk.x86_64
    export JRE_HOME=${JAVA_HOME}/jre
    export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib
    export PATH=${JAVA_HOME}/bin:$PATH

实时生效:

. /etc/profile

查看生效没有:

echo $JAVA_HOME

[root@localhost /]# echo $JAVA_HOME
    /usr/lib/jvm/java-1.8.0-openjdk.x86_64

*  ps:卸载 原有java

yum -y remove java-1.7.0-openjdk*

### 1.**安装tomcat7** ###

*  ps: wget也许要下载:yum install wget

1 下载tomcat7

[root@localhost tomcat]# wget https://mirrors.cnnic.cn/apache/tomcat/tomcat-7/v7.0.82/bin/apache-tomcat-7.0.82.tar.gz

其他版本([https://mirrors.cnnic.cn/apache/tomcat/][https_mirrors.cnnic.cn_apache_tomcat] || [http://tomcat.apache.org/][http_tomcat.apache.org])  
2 解压缩:

[root@localhost tomcat]# tar -zxvf apache-tomcat-7.0.82.tar.gz

\[root@admin ~\]\# /usr/local/tomcat/bin/startup.sh //启动tomcat

### 3.**安装postgresql 9.6** ###

移除旧版:

yum remove postgresql*

1 添加rpm包:

yum install https://download.postgresql.org/pub/repos/yum/9.6/redhat/rhel-6-x86_64/pgdg-centos96-9.6-3.noarch.rpm

2 安装 psql96

yum install postgresql96-server postgresql96-contrib postgresql96-devel

3 验证安装情况:

[root@localhost postgresql]# rpm -aq| grep postgres
    postgresql96-libs-9.6.6-5PGDG.rhel6.x86_64
    postgresql96-devel-9.6.6-5PGDG.rhel6.x86_64
    postgresql96-9.6.6-5PGDG.rhel6.x86_64
    postgresql96-contrib-9.6.6-5PGDG.rhel6.x86_64
    postgresql96-server-9.6.6-5PGDG.rhel6.x86_64

默认:

*  数据路径: /var/lib/pgsql/9.6/data

4 初始化数据库:

[root@localhost run]# service postgresql-9.6 initdb
    Initializing database:                                     [  OK  ]

5 开启postgresql服务:

[root@localhost run]# service postgresql-9.6 start
    Starting postgresql-9.6 service:                           [  OK  ]

6 设置开机启动服务

chkconfig postgresql-9.6 on

7 重启postgresql服务:(PostgreSQL 数据库默认会创建一个postgres的数据库用户作为数据库的管理员，默认密码为空)

service postgresql-9.6 restart

8开启远程访问  
/var/lib/pgsql/9.5/data/postgresql.conf  
修改  
listen\_addresses =’\*’

/var/lib/pgsql/9.4/data/pg\_hba.conf  
修改  
host all all 0.0.0.0/0 md5

其他版本请自查: [https://yum.postgresql.org/repopackages.php][https_yum.postgresql.org_repopackages.php]

--------------------

参考:  
[https://yum.postgresql.org/][https_yum.postgresql.org]  
[http://www.cnblogs.com/Irving/p/5283404.html][http_www.cnblogs.com_Irving_p_5283404.html]  
[http://blog.csdn.net/u012138272/article/details/54645512][http_blog.csdn.net_u012138272_article_details_54645512]

[https_mirrors.cnnic.cn_apache_tomcat]: https://mirrors.cnnic.cn/apache/tomcat/
[http_tomcat.apache.org]: http://tomcat.apache.org/
[https_yum.postgresql.org_repopackages.php]: https://yum.postgresql.org/repopackages.php
[https_yum.postgresql.org]: https://yum.postgresql.org/
[http_www.cnblogs.com_Irving_p_5283404.html]: http://www.cnblogs.com/Irving/p/5283404.html
[http_blog.csdn.net_u012138272_article_details_54645512]: http://blog.csdn.net/u012138272/article/details/54645512