vm12下Centos6的javaweb环境搭建

配置linux的javaweb环境之前：

1、在windows安装xshell（非必需，但是推荐）

2、在linux安装Linux与windows文件传输工具RZSZ
[root@192 ~]# yum install lrzsz

一、安装centos的jre和tomcat

1、windows下载tar压缩包并上传至linux服务器

windows下下载linux的jre（http://download.oracle.com/otn-pub/java/jdk/7u79-b15/jre-7u79-linux-x64.tar.gz?AuthParam=1494032273_7bab4bfca10697b99871cea7baab274c）

windows下下载linux的tomcat7（https://mirrors.tuna.tsinghua.edu.cn/apache/tomcat/tomcat-7/v7.0.77/bin/apache-tomcat-7.0.77.tar.gz）

# 下载完成后在linux下创建要存放压缩包的文件夹：
[root@ ~]# mkdir /usr/wangzf
[root@ ~]# mkdir /usr/wangzf/downloads
[root@ ~]# cd /usr/wangzf/downloads/

# 在windows下将jre-7u79-linux-x64.tar.gz和apache-tomcat-7.0..tar.gz拖动到xshell窗口，完成tar包的文件传输
[root@ downloads]# pwd
/usr/wangzf/downloads
[root@ downloads]# ll
total
-rw-r--r--.  root root   May   : apache-tomcat-7.0..tar.gz
-rw-r--r--.  root root  May   : jre-7u79-linux-x64.tar.gz

2、解压到指定目录并重命名

# 解压jre-7u79-linux-x64.tar.gz到/usr/wangzf/
[root@ downloads]# tar -xzvf jre-7u79-linux-x64.tar.gz -C /usr/wangzf/

# 解压apache-tomcat-7.0..tar.gz到/usr/local/tomcat
[root@ downloads]# tar -xzvf apache-tomcat-7.0..tar.gz -C /usr/wangzf/

# 查看解压后的两个文件夹
[root@ downloads]# cd /usr/wangzf/
[root@ wangzf]# ll
total
drwxr-xr-x.  root root  May   : apache-tomcat-7.0.
drwxr-xr-x.  root root  May   : downloads
drwxr-xr-x.  uucp    Apr    jre1..0_79

# 重命名文件夹
[root@ wangzf]# mv jre1..0_79/ jre1.
[root@ wangzf]# mv apache-tomcat-7.0./ tomcat7
[root@ wangzf]# ll
total
drwxr-xr-x.  root root  May   : downloads
drwxr-xr-x.  uucp    Apr    jre1.
drwxr-xr-x.  root root  May   : tomcat7

# 一般jre1.x都在java文件夹下，现在移动下
[root@ wangzf]# mkdir /usr/wangzf/java
[root@ wangzf]# mv jre1./ ./java/jre1.
[root@ wangzf]# ll
total
drwxr-xr-x.  root root  May   : downloads
drwxr-xr-x.  root root  May   : java
drwxr-xr-x.  root root  May   : tomcat7
[root@ wangzf]# ll ./java/
total
drwxr-xr-x.  uucp   Apr    jre1.

3、配置jre和tomcat的环境

3.1、配置jre环境

# 将java环境配置到/etc/profile.d/java.sh
[root@ wangzf]# vi /etc/profile.d/java.sh

# 将以下内容写入文件：
JAVA_HOME=/usr/wangzf/java
JRE_HOME=$JAVA_HOME/jre1.
PATH=$PATH:$JRE_HOME/bin
CLASSPATH=$JRE_HOME/lib/rt.jar:$JRE_HOME/lib/ext
export JAVA_HOME
export JRE_HOME
export PATH
export CLASSPATH

# 使用source命令重新执行java.sh中的命令而不用注销并重新登录
[root@ wangzf]# source /etc/profile.d/java.sh 

# 查看刚刚的环境变量
[root@ wangzf]# echo $JAVA_HOME
/usr/wangzf/java
[root@ wangzf]# echo $JRE_HOME
/usr/wangzf/java/jre1.
[root@ wangzf]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin:/usr/wangzf/java/jre1./bin
[root@ wangzf]# echo $CLASSPATH
/usr/wangzf/java/jre1./lib/rt.jar:/usr/wangzf/java/jre1./lib/ext

# 测试java环境
[root@ wangzf]# java -version
java version "1.7.0_79"
Java(TM) SE Runtime Environment (build 1.7.0_79-b15)
Java HotSpot(TM) -Bit Server VM (build 24.79-b02, mixed mode)

3.2、配置tomcat环境

# 将tomcat环境配置到/etc/profile.d/tomcat.sh
[root@ ~]# vi /etc/profile.d/tomcat.sh

# 在tomcat.sh中写入以下内容
CATALINA_BASE=/usr/wangzf/tomcat7
PATH=$PATH:$CATALINA_BASE/bin
export CATALINA_BASE
export PATH

# 执行tomcat.sh脚本，使之生效
[root@ ~]# source /etc/profile.d/tomcat.sh 

# 查看环境变量PATH
[root@ ~]# echo $PATH
/usr/local/sbin:/usr/local/bin:/sbin:/bin:/usr/sbin:/usr/bin:/root/bin:/usr/wangzf/java/jre1./bin:/usr/wangzf/tomcat7/bin

# 查看tomcat的版本状态
[root@ ~]# catalina.sh version
Using CATALINA_BASE:   /usr/wangzf/tomcat7
Using CATALINA_HOME:   /usr/wangzf/tomcat7
Using CATALINA_TMPDIR: /usr/wangzf/tomcat7/temp
Using JRE_HOME:        /usr/wangzf/java/jre1.
Using CLASSPATH:       /usr/wangzf/tomcat7/bin/bootstrap.jar:/usr/wangzf/tomcat7/bin/tomcat-juli.jar
Server version: Apache Tomcat/7.0.
Server built:   Mar   :: UTC
Server number:  7.0.77.0
OS Name:        Linux
OS Version:     2.6.-.el6.x86_64
Architecture:   amd64
JVM Version:    1.7.0_79-b15
JVM Vendor:     Oracle Corporation

4、在linux下启动tomcat，在window下访问tomcat主页

# 在centos中，开放iptables防火墙的端口80||3306端口
[root@ ~]# /sbin/iptables -I INPUT -p tcp --dport  -j ACCEPT
[root@ ~]# /sbin/iptables -I INPUT -p tcp --dport  -j ACCEPT
[root@ ~]# /sbin/iptables -I INPUT -p tcp --dport  -j ACCEPT
[root@ ~]# /etc/rc.d/init.d/iptables save
iptables: Saving firewall rules to /etc/sysconfig/iptables:[  OK  ]

# 查看防火墙的状态
[root@ ~]# /etc/init.d/iptables status
Table: filter
Chain INPUT (policy ACCEPT)
num  target     prot opt source               destination
    ACCEPT     tcp  --  0.0.0.0/            0.0.0.0/           tcp dpt:
    ACCEPT     tcp  --  0.0.0.0/            0.0.0.0/           tcp dpt:
    ACCEPT     tcp  --  0.0.0.0/            0.0.0.0/           tcp dpt:
    ACCEPT     all  --  0.0.0.0/            0.0.0.0/           state RELATED,ESTABLISHED
    ACCEPT     icmp --  0.0.0.0/            0.0.0.0/
    ACCEPT     all  --  0.0.0.0/            0.0.0.0/
    ACCEPT     tcp  --  0.0.0.0/            0.0.0.0/           state NEW tcp dpt:
    REJECT     all  --  0.0.0.0/            0.0.0.0/           reject-with icmp-host-prohibited 

Chain FORWARD (policy ACCEPT)
num  target     prot opt source               destination
    REJECT     all  --  0.0.0.0/            0.0.0.0/           reject-with icmp-host-prohibited 

Chain OUTPUT (policy ACCEPT)
num  target     prot opt source               destination         

# 在linux下启动tomact
[root@ ~]# startup.sh
Using CATALINA_BASE:   /usr/wangzf/tomcat7
Using CATALINA_HOME:   /usr/wangzf/tomcat7
Using CATALINA_TMPDIR: /usr/wangzf/tomcat7/temp
Using JRE_HOME:        /usr/wangzf/java/jre1.
Using CLASSPATH:       /usr/wangzf/tomcat7/bin/bootstrap.jar:/usr/wangzf/tomcat7/bin/tomcat-juli.jar
Tomcat started.

# 查看linux的ip（这里是192.168.22.）
[root@ ~]# ifconfig
eth0      Link encap:Ethernet  HWaddr :0C:::F2:D8
          inet addr:192.168.22.130  Bcast:192.168.22.255  Mask:255.255.255.0
          inet6 addr: fe80::20c:29ff:fe45:f2d8/ Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:  Metric:
          RX packets: errors: dropped: overruns: frame:
          TX packets: errors: dropped: overruns: carrier:
          collisions: txqueuelen:
          RX bytes: (63.5 MiB)  TX bytes: (1.5 MiB)

lo        Link encap:Local Loopback
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::/ Scope:Host
          UP LOOPBACK RUNNING  MTU:  Metric:
          RX packets: errors: dropped: overruns: frame:
          TX packets: errors: dropped: overruns: carrier:
          collisions: txqueuelen:
          RX bytes: (0.0 b)  TX bytes: (0.0 b)

# 想要在windows下访问linux的服务器项目，前提是必须能够在windows下ping虚拟机下的centos主机
C:\Users\Administrator>ping 192.168.22.130

正在 Ping 192.168.22.130 具有  字节的数据:
来自 192.168.22.130 的回复: 字节= 时间<1ms TTL=
来自 192.168.22.130 的回复: 字节= 时间=5ms TTL=
来自 192.168.22.130 的回复: 字节= 时间=1ms TTL=
来自 192.168.22.130 的回复: 字节= 时间=1ms TTL=

192.168.22.130 的 Ping 统计信息:
    数据包: 已发送 = ，已接收 = ，丢失 =  (% 丢失)，
往返行程的估计时间(以毫秒为单位):
    最短 = 0ms，最长 = 5ms，平均 = 1ms

C:\Users\Administrator>

# 在windows下访问http://192.168.22.130:8080/，是不是看到了熟悉的tomcat，大功告成？

如果要关闭tomcat，则执行以下命令：

[root@ ~]# shutdown.sh
Using CATALINA_BASE:   /usr/wangzf/tomcat7
Using CATALINA_HOME:   /usr/wangzf/tomcat7
Using CATALINA_TMPDIR: /usr/wangzf/tomcat7/temp
Using JRE_HOME:        /usr/wangzf/java/jre1.
Using CLASSPATH:       /usr/wangzf/tomcat7/bin/bootstrap.jar:/usr/wangzf/tomcat7/bin/tomcat-juli.jar

二、将javaweb项目放入linux下测试并访问

1、使用Eclipse或者MyEclipse创建一个最简单的web项目（本人这里项目名称是MyCentos）

2、在tomcat目录下找到对应的项目，打包成zip（linux没有安装jdk，只安装了jre，所以在linux下不能解压war包，这里压缩成zip），放入/usr/wangzf/Apps目录

# MyCentos.zip的目录结构

MyCentos.zip
├── MyCentos
    ├── index.jsp
    ├── META-INF
    │   └── MANIFEST.MF
    └── WEB-INF
        ├── classes
        ├── lib
        └── web.xml 

# 创建目录/usr/wangzf/Apps用来存放发布的项目
[root@ ~]# mkdir /usr/wangzf/Apps
[root@ ~]# cd /usr/wangzf/Apps

# 将MyCentos.zip拖到xshell窗口上传到当前目录
[root@ Apps]# rz -E
rz waiting to receive.

# 查看上传的文件
[root@ Apps]# ll
total
-rw-r--r--.  root root  May   : MyCentos.zip

# 在linux下解压缩zip文件需要安装zip和unzip
[root@ Apps]# yum install zip
[root@ Apps]# yum install unzip

# 解压MyCentos.zip下的所有文件（）到当前目录
[root@ Apps]# unzip MyCentos.zip
Archive:  MyCentos.zip
   creating: MyCentos/
   creating: MyCentos/META-INF/
 extracting: MyCentos/META-INF/MANIFEST.MF
   creating: MyCentos/WEB-INF/
   creating: MyCentos/WEB-INF/classes/
  inflating: MyCentos/WEB-INF/index.jsp
   creating: MyCentos/WEB-INF/lib/
  inflating: MyCentos/WEB-INF/web.xml
  inflating: MyCentos/index.jsp      

# 备份并修改tomcat server.xml，加入Context节点，部署项目
[root@ MyCentos]# cd /usr/wangzf/tomcat7/config/
[root@ conf]# cp server.xml server.xml.back
[root@ conf]# vi server.xml

# server.xml代码片段
...
<Host name="localhost"  appBase="webapps"
            unpackWARs="true" autoDeploy="true">

    <Context docBase="/usr/wangzf/Apps/MyCentos" path="/MyCentosWeb" reloadable="true"/>

    <!-- SingleSignOn valve, share authentication between web applications
         Documentation at: /docs/config/valve.html -->
...

3、启动tomcat

[root@ conf]# startup.sh
Using CATALINA_BASE: /usr/wangzf/tomcat7
Using CATALINA_HOME: /usr/wangzf/tomcat7
Using CATALINA_TMPDIR: /usr/wangzf/tomcat7/temp
Using JRE_HOME: /usr/wangzf/java/jre1.
Using CLASSPATH: /usr/wangzf/tomcat7/bin/bootstrap.jar:/usr/wangzf/tomcat7/bin/tomcat-juli.jar
Tomcat started.

4、windows客服端访问
在windows下访问“http://192.168.22.130:8080/MyCentosWeb/”，就可以看到index.jsp的内容了！

附：在linux下查看tomcat|java是否启动

# 尚未启动java之前
[root@localhost ~]# ps -ef|grep java
root             : pts/    :: grep java

# 尚未启动tomcat之前
[root@localhost ~]# ps -ef|grep tomcat
root             : pts/    :: grep tomcat

# 启动tomcat
[root@localhost ~]# startup.sh
Using CATALINA_BASE:   /usr/wangzf/tomcat7
Using CATALINA_HOME:   /usr/wangzf/tomcat7
Using CATALINA_TMPDIR: /usr/wangzf/tomcat7/temp
Using JRE_HOME:        /usr/wangzf/java/jre1.
Using CLASSPATH:       /usr/wangzf/tomcat7/bin/bootstrap.jar:/usr/wangzf/tomcat7/bin/tomcat-juli.jar
Tomcat started.

# 启动tomcat之后
[root@localhost ~]# ps -ef|grep tomcat
root               : pts/    :: /usr/wangzf/java/jre1./bin/java -Djava.util.logging.config.file=/usr/wangzf/tomcat7/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djdk.tls.ephemeralDHKeySize= -Djava.endorsed.dirs=/usr/wangzf/tomcat7/endorsed -classpath /usr/wangzf/tomcat7/bin/bootstrap.jar:/usr/wangzf/tomcat7/bin/tomcat-juli.jar -Dcatalina.base=/usr/wangzf/tomcat7 -Dcatalina.home=/usr/wangzf/tomcat7 -Djava.io.tmpdir=/usr/wangzf/tomcat7/temp org.apache.catalina.startup.Bootstrap start
root             : pts/    :: grep tomcat

# 启动tomcat（会启动jre）之后
[root@localhost ~]# ps -ef|grep java
root               : pts/    :: /usr/wangzf/java/jre1./bin/java -Djava.util.logging.config.file=/usr/wangzf/tomcat7/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djdk.tls.ephemeralDHKeySize= -Djava.endorsed.dirs=/usr/wangzf/tomcat7/endorsed -classpath /usr/wangzf/tomcat7/bin/bootstrap.jar:/usr/wangzf/tomcat7/bin/tomcat-juli.jar -Dcatalina.base=/usr/wangzf/tomcat7 -Dcatalina.home=/usr/wangzf/tomcat7 -Djava.io.tmpdir=/usr/wangzf/tomcat7/temp org.apache.catalina.startup.Bootstrap start
root             : pts/    :: grep java

PS:

要把tomcat加入服务设置开机自启动，请查看wangli61289的博客：http://blog.csdn.net/wangli61289/article/details/37924785