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Linux服务器安装JAVA环境

合宙 模组资料网 1年前 (2021-05-15) 270次浏览 已收录 0个评论 扫描二维码

大家在进行下边的操作时前,应先确保你的服务器是Linux 64位系统。下面的步骤我是边配置自己的服务器边记录的过程,我的服务器为Centos 6.8 64位系统。

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首先,到JDK官网,找到JDK8的下载连接,这是JDK8的下载页面:http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html在下载页面中选择你想要的JDK8的版本,在这里我选择Linux x64版本,也就是Linux系统64位的版本,同时我选择下载.rpm格式,如下图所示:


Linux服务器安装JAVA环境 

我使用的是傲游云浏览器,先同意人家的许可条件,然后点一下jdk-8u65-linux-x64.rpm后,弹出下载页面如下:



Linux服务器安装JAVA环境 ; ?# {1 Z9 S, S7 p# X’ b$ y
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从上图中的下载页面中,就可以得到jdk-8u65-linux-x64.rpm的下载地址,我们复制一下。‘ v” N’ J- S- c/ Z
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1、接下来,使用putty连接服务器,输入 cd /进入根目录‘ t! t- o+ s. x1 G
2、输入cd /web/eoair 进入eoair目录; t  w, g8 p- v
3、输入 mkdir download 在eoair目录下又创建了download目录0 A% J: X’ q1 b( U/ M
4、输入 cd ./download 进入download目录‘ C” G! v3 {; G2 j, z/ H2 f) d
5、输入 pwd 显示当前目录为web/eoair/download
上面1-5命令输入情况如下图所示:
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Linux服务器安装JAVA环境 & @4 ~” y8 z8 r- y; r9 F
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6、输入 wget  http://download.oracle.com/otn-p … 2a7da4a6ae9bbae2218 下载jdk-8u65-linux-x64.rpm文件,wget是Linux系统中的下载命令,wget后面是需要下载的文件的url地址。
接下来,服务器就开始下载文件,得等待一会才能下载完毕,下载界面如下图所示:


Linux服务器安装JAVA环境 , |3 U  s” ~/ r# C
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下载完成后,我们输入 ll 查看一下下载的文件,发现文件名好长好长,我在这就将文件名修改一下。; s5 h3 i/ h5 u  a- B
使用mv指令可以修改文件名,如下图所示:


Linux服务器安装JAVA环境 
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输入ll来查看一下修改后的文件名,如下图所示:
) V* M* P0 d  g/ _) Y) ]* </font><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, "Microsoft Yahei", Simsun;"><ignore_js_op style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, "Microsoft Yahei", Simsun;"><img id="aimg_1405" aid="1405" src="http://bbs.qdclab.com/data/attachment/forum/201511/20/134526zib9pl3rlaoj4eei.jpg" zoomfile="data/attachment/forum/201511/20/134526zib9pl3rlaoj4eei.jpg" file="data/attachment/forum/201511/20/134526zib9pl3rlaoj4eei.jpg" class="zoom" width="558" inpost="1" style="word-wrap: break-word; cursor: pointer;">&nbsp;</ignore_js_op><span style="color: rgb(68, 68, 68); font-family: Tahoma, "Microsoft Yahei", Simsun;"></span><font class="jammer" style="word-wrap: break-word; font-size: 10px; color: rgb(255, 255, 255); font-family: Tahoma, "Microsoft Yahei", Simsun;">2 R/ ln2 a4 z a" y</font><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, "Microsoft Yahei", Simsun;"><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, "Microsoft Yahei", Simsun;"><font size="5" style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, "Microsoft Yahei", Simsun;">7、输入&nbsp;<font style="word-wrap: break-word; color: rgb(51, 51, 51);"><font style="word-wrap: break-word; background-color: rgb(250, 250, 252);">rpm -ivh jdk-8u65-linux-x64.rpm 来开始安装JDK,安装画面如下所示:</font></font></font><font size="5" style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, "Microsoft Yahei", Simsun;"><font color="#001000" style="word-wrap: break-word;"><br style="word-wrap: break-word;"></font></font><span style="color: rgb(68, 68, 68); font-family: Tahoma, "Microsoft Yahei", Simsun;"></span><ignore_js_op style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, "Microsoft Yahei", Simsun;"><img id="aimg_1406" aid="1406" src="http://bbs.qdclab.com/data/attachment/forum/201511/20/135218r6s27jc4vz2v4ej2.jpg" zoomfile="data/attachment/forum/201511/20/135218r6s27jc4vz2v4ej2.jpg" file="data/attachment/forum/201511/20/135218r6s27jc4vz2v4ej2.jpg" class="zoom" width="600" inpost="1" style="word-wrap: break-word; cursor: pointer;">&nbsp;</ignore_js_op><span style="color: rgb(68, 68, 68); font-family: Tahoma, "Microsoft Yahei", Simsun;"></span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, "Microsoft Yahei", Simsun;"><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, "Microsoft Yahei", Simsun;"><font size="5" style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, "Microsoft Yahei", Simsun;">等待JDK安装完毕后,输入 java ,页面返回如下所示:</font><font class="jammer" style="word-wrap: break-word; font-size: 10px; color: rgb(255, 255, 255); font-family: Tahoma, "Microsoft Yahei", Simsun;">; z5 o& e2 \4 |" n</font><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, "Microsoft Yahei", Simsun;"><font class="jammer" style="word-wrap: break-word; font-size: 10px; color: rgb(255, 255, 255); font-family: Tahoma, "Microsoft Yahei", Simsun;">! z3 a[% S9 E& w% Q G+ K</font><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, "Microsoft Yahei", Simsun;"><ignore_js_op style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, "Microsoft Yahei", Simsun;"><img id="aimg_1407" aid="1407" src="http://bbs.qdclab.com/data/attachment/forum/201511/20/135409m7hpx6hg8zu70g4u.jpg" zoomfile="data/attachment/forum/201511/20/135409m7hpx6hg8zu70g4u.jpg" file="data/attachment/forum/201511/20/135409m7hpx6hg8zu70g4u.jpg" class="zoom" width="600" inpost="1" style="word-wrap: break-word; cursor: pointer;">&nbsp;</ignore_js_op><span style="color: rgb(68, 68, 68); font-family: Tahoma, "Microsoft Yahei", Simsun;"></span><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, "Microsoft Yahei", Simsun;"><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, "Microsoft Yahei", Simsun;"><font size="5" style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, "Microsoft Yahei", Simsun;">输入 java -version ,页面返回如下所示:</font><font class="jammer" style="word-wrap: break-word; font-size: 10px; color: rgb(255, 255, 255); font-family: Tahoma, "Microsoft Yahei", Simsun;">; X3 {8 G" ?7 ~) w, ~4 k/ {0 D8/ @0 E
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Linux服务器安装JAVA环境 $ l% p6 ?- a# V7 L

若输入java指令与java -version指令后返回上面两个界面,就说明JDK环境安装完成。

不过还没有完事,接下来,我们来设置一下java的环境变量:( N  K7 M2 X6 o3 |/ |
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1、输入 cd / 回到服务器根目录
2、输入 cd /usr/java 进入java目录
3、输入 ll 查看JDK的目录名,如下所示:9 {” Q6 ]. S% h( ^- ^2 D3 O” V; n

Linux服务器安装JAVA环境 
0 N” J7 n5 l1 Q” ]( z. t+ {5 J) 8 y</font><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, "Microsoft Yahei", Simsun;"><font size="5" style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, "Microsoft Yahei", Simsun;">注意留意上图中JDK的目录名,一会要用到。</font><font class="jammer" style="word-wrap: break-word; font-size: 10px; color: rgb(255, 255, 255); font-family: Tahoma, "Microsoft Yahei", Simsun;">; x: U. f# v0 q8 \</font><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, "Microsoft Yahei", Simsun;"><font size="5" style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, "Microsoft Yahei", Simsun;"><br style="word-wrap: break-word;"></font><font class="jammer" style="word-wrap: break-word; font-size: 10px; color: rgb(255, 255, 255); font-family: Tahoma, "Microsoft Yahei", Simsun;">% [1 x) }9 y5 q7 N; w</font><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, "Microsoft Yahei", Simsun;"><font size="5" style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, "Microsoft Yahei", Simsun;">4、输入 cd / 切换到服务器根目录。</font><font class="jammer" style="word-wrap: break-word; font-size: 10px; color: rgb(255, 255, 255); font-family: Tahoma, "Microsoft Yahei", Simsun;">. x& H5 D% L4 g' wI- t1 u& V, Y4 O</font><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, "Microsoft Yahei", Simsun;"><font size="5" style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, "Microsoft Yahei", Simsun;">输入 vim etc/profile 打开profile文件,按键盘上的i键后就可以编辑文件。</font><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, "Microsoft Yahei", Simsun;"><font size="5" style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, "Microsoft Yahei", Simsun;">在文件最后输入 export JAVA_HOME=/usr/java/jdk1.8.0_65 添加JAVA_HOME环境变量,JAVA_HOME的值就是JDK相对根目录的路径。</font><br style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, "Microsoft Yahei", Simsun;"><font size="5" style="word-wrap: break-word; color: rgb(68, 68, 68); font-family: Tahoma, "Microsoft Yahei", Simsun;">然后再输入</font><div class="blockcode" style="word-wrap: break-word; overflow: hidden; margin: 10px 0px; padding: 10px 0px 5px 10px; background: url("http://bbs.qdclab.com/static/image/common/codebg.gif") 0px 0px repeat-y rgb(247, 247, 247); color: rgb(102, 102, 102); zoom: 1; border: 1px solid rgb(204, 204, 204); font-family: Tahoma, "Microsoft Yahei", Simsun;"><div id="code_CYZ" style="word-wrap: break-word;"><ol style="word-wrap: break-word; margin-right: 0px !important; margin-bottom: 0px !important; margin-left: 10px !important; padding: 0px !important;"><li style="word-wrap: break-word; margin: 0px 0px 0px 2em; padding: 0px 0px 0px 10px; list-style-type: decimal-leading-zero; font-family: Monaco, Consolas, "Lucida Console", "Courier New", serif; font-size: 12px; line-height: 1.8em;">export PATH=JAVA_HOME/bin:$PATH</li></ol></div><span style="word-wrap: break-word; margin-left: 43px; font-size: 12px; cursor: pointer; color: rgb(51, 102, 153) !important;">复制代码</span></div><font class="jammer" style="word-wrap: break-word; font-size: 10px; color: rgb(255, 255, 255); font-family: Tahoma, "Microsoft Yahei", Simsun;">) q9 n8” r; s+ v3 a( W# N
修改PATH环境变量。  E6 @, o5 r4 ?” o+ l
然后再输入

  1. export CLASSPATH=.:JAVA_HOME/lib/dt.jar:JAVA_HOME/lib/tools.jar

复制代码


修改CLASSPATH环境变量。2 s# d4 q+ g0 x$ Z
到这环境变量修改完毕,按一下键盘的Esc键,然后按着键盘shift键的同时按:键,然后输入wq并回车,就可以保存并退出这个profile文件了。
最后,为了让我们修改后的profile文件马上生效,输入 source 如下图所示:


Linux服务器安装JAVA环境 : N2 G’ a+ ?$ u


5、接下来我们检查刚才修改的环境变量。* o7 E* X) F; n/ z; ( U, k
输入 echo $JAVA_HOME 查看JAVA_HOME环境变量,返回值如下所示:2 n! ~/ S9 i, U- E3 |” `# z! w5 [

Linux服务器安装JAVA环境 
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返回值跟我们设置的一样,说明JAVA_HOME环境变量设置好了。  M9 Y8 YN/ x% x. N, { i; Q; s
接下来输入 echo $PATH 查看我们修改后的PATH环境变量,返回值如下所示:

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我们注意看上图中第一个bin:前面的路径为我们JDK的路径,也就是JAVA_HOME环境变量的路径,就对了。5 q4 t- f* G* ~* C
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好了,大功告成!8 z- V5 Z5 o# e/ T  S% {


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