centos 系统jdk安装

﹏ヽ暗。殇╰゛Y 2022-04-11 07:25 252阅读 0赞

<1>\# rpm -qa|grep jdk ← 查看jdk的信息或直接执行  
或

# rpm -q jdk #

或

# java -version #

< 2>\# rpm -qa | grep gcj ← 确认gcj的版本号  
< 3>\# yum -y remove java-1.4.2-gcj-compat ← 卸载gcj

[http://www.oracle.com/technetwork/java/javase/downloads][http_www.oracle.com_technetwork_java_javase_downloads] JDK下载

# cd /opt #

# tar xzvf \*.tar.gz #

# mv \*.tar.gz jdk #

vi /etc/profile

export JAVA\_HOME=/opt/jdk1.8.0\_45  
export PATH=<nobr><span class="math" id="MathJax-Span-369" style="width: 10.669em; display: inline-block;"><span style="display: inline-block; position: relative; width: 8.536em; height: 0px; font-size: 125%;"><span style="position: absolute; clip: rect(1.816em 1000em 3.149em -0.424em); top: -2.717em; left: 0.003em;"><span class="mrow" id="MathJax-Span-370"><span class="mi" id="MathJax-Span-371" style="font-family: MathJax\_Math-italic;">J<span style="display: inline-block; overflow: hidden; height: 1px; width: 0.056em;"></span></span><span class="mi" id="MathJax-Span-372" style="font-family: MathJax\_Math-italic;">A</span><span class="mi" id="MathJax-Span-373" style="font-family: MathJax\_Math-italic;">V<span style="display: inline-block; overflow: hidden; height: 1px; width: 0.163em;"></span></span><span class="msubsup" id="MathJax-Span-374"><span style="display: inline-block; position: relative; width: 1.443em; height: 0px;"><span style="position: absolute; clip: rect(1.709em 1000em 2.723em -0.424em); top: -2.557em; left: 0.003em;"><span class="mi" id="MathJax-Span-375" style="font-family: MathJax\_Math-italic;">A</span><span style="display: inline-block; width: 0px; height: 2.563em;"></span></span><span style="position: absolute; top: -2.291em; left: 0.749em;"><span class="mi" id="MathJax-Span-376" style="font-size: 70.7%; font-family: MathJax\_Math-italic;">H<span style="display: inline-block; overflow: hidden; height: 1px; width: 0.056em;"></span></span><span style="display: inline-block; width: 0px; height: 2.456em;"></span></span></span></span><span class="mi" id="MathJax-Span-377" style="font-family: MathJax\_Math-italic;">O</span><span class="mi" id="MathJax-Span-378" style="font-family: MathJax\_Math-italic;">M<span style="display: inline-block; overflow: hidden; height: 1px; width: 0.109em;"></span></span><span class="mi" id="MathJax-Span-379" style="font-family: MathJax\_Math-italic;">E<span style="display: inline-block; overflow: hidden; height: 1px; width: 0.003em;"></span></span><span class="texatom" id="MathJax-Span-380"><span class="mrow" id="MathJax-Span-381"><span class="mo" id="MathJax-Span-382" style="font-family: MathJax\_Main;">/</span></span></span><span class="mi" id="MathJax-Span-383" style="font-family: MathJax\_Math-italic;">b</span><span class="mi" id="MathJax-Span-384" style="font-family: MathJax\_Math-italic;">i</span><span class="mi" id="MathJax-Span-385" style="font-family: MathJax\_Math-italic;">n</span><span class="mo" id="MathJax-Span-386" style="font-family: MathJax\_Main; padding-left: 0.269em;">:</span></span><span style="display: inline-block; width: 0px; height: 2.723em;"></span></span></span><span style="border-left: 0.003em solid; display: inline-block; overflow: hidden; width: 0px; height: 1.403em; vertical-align: -0.397em;"></span></span></nobr><script type="math/tex" id="MathJax-Element-3">JAVA\_HOME/bin:</script>PATH  
export CLASSPATH=.:<nobr><span class="math" id="MathJax-Span-387" style="width: 14.349em; display: inline-block;"><span style="display: inline-block; position: relative; width: 11.469em; height: 0px; font-size: 125%;"><span style="position: absolute; clip: rect(1.816em 1000em 3.149em -0.424em); top: -2.717em; left: 0.003em;"><span class="mrow" id="MathJax-Span-388"><span class="mi" id="MathJax-Span-389" style="font-family: MathJax\_Math-italic;">J<span style="display: inline-block; overflow: hidden; height: 1px; width: 0.056em;"></span></span><span class="mi" id="MathJax-Span-390" style="font-family: MathJax\_Math-italic;">A</span><span class="mi" id="MathJax-Span-391" style="font-family: MathJax\_Math-italic;">V<span style="display: inline-block; overflow: hidden; height: 1px; width: 0.163em;"></span></span><span class="msubsup" id="MathJax-Span-392"><span style="display: inline-block; position: relative; width: 1.443em; height: 0px;"><span style="position: absolute; clip: rect(1.709em 1000em 2.723em -0.424em); top: -2.557em; left: 0.003em;"><span class="mi" id="MathJax-Span-393" style="font-family: MathJax\_Math-italic;">A</span><span style="display: inline-block; width: 0px; height: 2.563em;"></span></span><span style="position: absolute; top: -2.291em; left: 0.749em;"><span class="mi" id="MathJax-Span-394" style="font-size: 70.7%; font-family: MathJax\_Math-italic;">H<span style="display: inline-block; overflow: hidden; height: 1px; width: 0.056em;"></span></span><span style="display: inline-block; width: 0px; height: 2.456em;"></span></span></span></span><span class="mi" id="MathJax-Span-395" style="font-family: MathJax\_Math-italic;">O</span><span class="mi" id="MathJax-Span-396" style="font-family: MathJax\_Math-italic;">M<span style="display: inline-block; overflow: hidden; height: 1px; width: 0.109em;"></span></span><span class="mi" id="MathJax-Span-397" style="font-family: MathJax\_Math-italic;">E<span style="display: inline-block; overflow: hidden; height: 1px; width: 0.003em;"></span></span><span class="texatom" id="MathJax-Span-398"><span class="mrow" id="MathJax-Span-399"><span class="mo" id="MathJax-Span-400" style="font-family: MathJax\_Main;">/</span></span></span><span class="mi" id="MathJax-Span-401" style="font-family: MathJax\_Math-italic;">l</span><span class="mi" id="MathJax-Span-402" style="font-family: MathJax\_Math-italic;">i</span><span class="mi" id="MathJax-Span-403" style="font-family: MathJax\_Math-italic;">b</span><span class="texatom" id="MathJax-Span-404"><span class="mrow" id="MathJax-Span-405"><span class="mo" id="MathJax-Span-406" style="font-family: MathJax\_Main;">/</span></span></span><span class="mi" id="MathJax-Span-407" style="font-family: MathJax\_Math-italic;">d<span style="display: inline-block; overflow: hidden; height: 1px; width: 0.003em;"></span></span><span class="mi" id="MathJax-Span-408" style="font-family: MathJax\_Math-italic;">t</span><span class="mo" id="MathJax-Span-409" style="font-family: MathJax\_Main;">.</span><span class="mi" id="MathJax-Span-410" style="font-family: MathJax\_Math-italic; padding-left: 0.163em;">j</span><span class="mi" id="MathJax-Span-411" style="font-family: MathJax\_Math-italic;">a</span><span class="mi" id="MathJax-Span-412" style="font-family: MathJax\_Math-italic;">r</span><span class="mo" id="MathJax-Span-413" style="font-family: MathJax\_Main; padding-left: 0.269em;">:</span></span><span style="display: inline-block; width: 0px; height: 2.723em;"></span></span></span><span style="border-left: 0.003em solid; display: inline-block; overflow: hidden; width: 0px; height: 1.403em; vertical-align: -0.397em;"></span></span></nobr><script type="math/tex" id="MathJax-Element-4">JAVA\_HOME/lib/dt.jar:</script>JAVA\_HOME/lib/tools.jar  
source /etc/profile // 这条命令是让配置马上生效。

[http://www.linuxidc.com/Linux/2015-01/111414.htm][http_www.linuxidc.com_Linux_2015-01_111414.htm]

.bin 的安装

[http://johnsz.blog.51cto.com/525379/694052][http_johnsz.blog.51cto.com_525379_694052]

.rpm 的安装  
[http://www.cnblogs.com/rilley/archive/2012/02/02/2335395.html][http_www.cnblogs.com_rilley_archive_2012_02_02_2335395.html]

<script type="text/javascript"> $(function () \{ $('pre.prettyprint code').each(function () \{ var lines = $(this).text().split('\\n').length; var $numbering = $('<ul/>').addClass('pre-numbering').hide(); $(this).addClass('has-numbering').parent().append($numbering); for (i = 1; i <= lines; i++) \{ $numbering.append($('<li/>').text(i)); \}; $numbering.fadeIn(1700); \}); \}); </script>

[http_www.oracle.com_technetwork_java_javase_downloads]: http://www.oracle.com/technetwork/java/javase/downloads
[http_www.linuxidc.com_Linux_2015-01_111414.htm]: http://www.linuxidc.com/Linux/2015-01/111414.htm
[http_johnsz.blog.51cto.com_525379_694052]: http://johnsz.blog.51cto.com/525379/694052
[http_www.cnblogs.com_rilley_archive_2012_02_02_2335395.html]: http://www.cnblogs.com/rilley/archive/2012/02/02/2335395.html

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