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tomcat介紹,jdk,tomcat安裝

變量 tar zxvf 發布 fire grep tar str net isa

tomcat介紹
  • Tomcat是Apache軟件基金會(Apache Software Foundation)的Jakarta項目中的一個核心項目,由Apache、Sun和其他一些公司及個人共同開發而成。
  • java程序寫的網站用tomcat+jdk來運行
  • tomcat是一個中間件,真正起作用的,解析java腳本的是jdk
  • jdk(java development kit)是整個java的核心,它包含了java運行環境和一堆java相關的工具以及java基礎庫。
  • 最主流的jdk為sun公司發布的jdk,除此之外,其實IBM公司也有發布JDK,CentOS上也可以用yum安裝openjdk

    jdk安裝

  • jdk版本1.6,1.7,1.8
  • 官網下載地址 http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html
  • 下載jdk8,放到/usr/local/src/目錄下,(先下載到電腦再使用xftp5傳輸)
  • 解壓並移動到/usr/local/jdk1.8
    [root@akuilinux01 src]# tar zxvf jdk-8u171-linux-x64.tar.gz
    [root@akuilinux01 src]# mv jdk1.8.0_171/ /usr/local/jdk1.8
  • 設置環境變量
    [root@akuilinux01 src]# vim /etc/profile
    AVA_HOME=/usr/local/jdk1.8/
    JAVA_BIN=/usr/local/jdk1.8/bin
    JRE_HOME=/usr/local/jdk1.8/jre
    PATH=$PATH:/usr/local/jdk1.8/bin:/usr/local/jdk1.8/jre/bin
    CLASSPATH=/usr/local/jdk1.8/jre/lib:/usr/local/jdk1.8/lib:/usr/local/jdk1.8/jre/lib/charsets.jar
  • source並驗證
    root@akuilinux01 src]# source /etc/profile
    [root@akuilinux01 src]# java -version
    java version "1.8.0_171"
    Java(TM) SE Runtime Environment (build 1.8.0_171-b11)
    Java HotSpot(TM) 64-Bit Server VM (build 25.171-b11, mixed mode)
  • 如果和你安裝的版本不一樣,可以查看是不是安裝過其他版本的jdk,可以卸載其他版本的包,在線上的機器別輕易卸載,可能有些服務用到。

    tomcat安裝

  • 下載並解壓二進制包
    [root@akuilinux01 src]# cd /usr/local/src/
    [root@akuilinux01 src]# wget http://apache.fayea.com/tomcat/tomcat-8/v8.5.20/bin/apache-tomcat-8.5.20.tar.gz
    [root@akuilinux01 src]# tar zxvf apache-tomcat-8.5.31.tar.gz
  • 移動並啟動
    [root@akuilinux01 src]# mv apache-tomcat-8.5.31 /usr/local/tomcat
    [root@akuilinux01 src]# /usr/local/tomcat/bin/startup.sh 
    Using CATALINA_BASE:   /usr/local/tomcat
    Using CATALINA_HOME:   /usr/local/tomcat
    Using CATALINA_TMPDIR: /usr/local/tomcat/temp
    Using JRE_HOME:        /usr/local/jdk1.8
    Using CLASSPATH:       /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar
    Tomcat started.
    [root@akuilinux01 src]# ps aux |grep java
    root      3304 56.0  5.4 4058116 101556 pts/0  Sl   21:55   0:13 /usr/local/jdk1.8/bin/java -Djav.util.logging.config.file=/usr/local/tomcat/conf/logging.properties -Djava.util.logging.manager=org.apache.juli.ClassLoaderLogManager -Djdk.tls.ephemeralDHKeySize=2048 -Djava.protocol.handler.pkgs=org.apache.catalina.webresources -Dorg.apache.catalina.security.SecurityListener.UMASK=0027 -Dignore.endorsed.dirs= -classpath /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar -Dcatalina.base=/usr/local/tomcat -Dcatalina.home=/usr/local/tomcat -Djava.io.tmpdir=/usr/local/tomcat/temp org.apache.catalina.startup.Bootstrap start
    root      3355  0.0  0.0 112676   984 pts/0    S+   21:56   0:00 grep --color=auto 
  • tomcat不支持restart,關閉命令為下
    [root@akuilinux01 src]# /usr/local/tomcat/bin/shutdown.sh 
    Using CATALINA_BASE:   /usr/local/tomcat
    Using CATALINA_HOME:   /usr/local/tomcat
    Using CATALINA_TMPDIR: /usr/local/tomcat/temp
    Using JRE_HOME:        /usr/local/jdk1.8
    Using CLASSPATH:       /usr/local/tomcat/bin/bootstrap.jar:/usr/local/tomcat/bin/tomcat-juli.jar
    [root@akuilinux01 src]# ps aux |grep java
    root      3391  0.0  0.0 112676   984 pts/0    S+   21:57   0:00 grep --color=auto java
  • 監聽的端口
    [root@akuilinux01 ~]# netstat -lntp |grep java
    tcp6       0      0 :::8080                 :::*                    LISTEN      3407/java           
    tcp6       0      0 127.0.0.1:8005          :::*                    LISTEN      3407/java           
    tcp6       0      0 :::8009                 :::*                    LISTEN      3407/java     
  • 三個端口8080為提供web服務的端口,8005為管理端口,8009端口為第三方服務調用的端口,比如httpd和Tomcat結合時會用到
  • 關閉防火墻就可以瀏覽器打開http://192.168.21.128:8080/,就可以看到tomcat的頁面
    [root@akuilinux01 ~]# systemctl stop firewalld
    [root@akuilinux01 ~]# systemctl disable firewalld
    [root@akuilinux01 ~]# iptables -nvL
    Chain INPUT (policy ACCEPT 14339 packets, 206M bytes)
    pkts bytes target     prot opt in     out     source               destination         
    Chain FORWARD (policy ACCEPT 0 packets, 0 bytes)
    pkts bytes target     prot opt in     out     source               destination         
    Chain OUTPUT (policy ACCEPT 11657 packets, 1493K bytes)
    pkts bytes target     prot opt in     out     source               destination         

    擴展

  • java容器比較(
    http://www.360doc.com/content/11/0618/21/16915_127901371.shtml)

tomcat介紹,jdk,tomcat安裝