详解Linux下JDK、Tomcat的安装及配置

神殇發表於 2023-10-23 00:00:00

<p>
<strong>1、jdk的安装</strong></p>
<p>
1.1下载jdk</p>
<p>
先查看Linux系统是多少位（32位/64位）：getconf LONG_BIT。再从JDK官网（http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html）下载JDK 7，Linux 64位下载jdk-7u60-linux-x64.tar.gz。</p>
<p>
1.2解压安装</p>
<p>
1.2.1选择安装JDK的位置/usr/Java，如果存在这个目录无需创建，一般新到的机器是没有这个目录的，这个我们创建这个目录。</p>
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<code class="bash functions">sudo</code> <code class="bash functions">mkdir</code> <code class="bash plain">/usr/java</code>
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1.2.2将jdk-7u60-linux-x64.tar.gz上传到服务器，移动到/usr/java。</p>
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<code class="bash functions">sudo</code> <code class="bash functions">mv</code> <code class="bash plain">jdk-7u60-linux-x64.gz </code><code class="bash plain">/usr/java</code>
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1.2.3解压：进入/usr/java目录（cd usr/java）解压</p>
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<code class="bash functions">sudo</code> <code class="bash functions">tar</code> <code class="bash plain">-zxvfjdk-7u60-linux-x64.gz</code>
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1.2.4删除jdk-7u60-linux-x64.tar.gz</p>
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1.3配置环境变量</p>
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打开/etc/profile（sudo vim /etc/profile）在最后面添加如下内容：</p>
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<code class="plain plain">export JAVA_HOME=/usr/java/jdk1.7.0_60 </code>
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<code class="plain plain">export JRE_HOME=/usr/java/jdk1.7.0_60/jre </code>
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<code class="plain plain">exportCLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar:$JRE_HOME/lib </code>
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<code class="plain plain">export PATH=$PATH:$JAVA_HOME/bin</code>
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让配置生效：</p>
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<code class="plain plain">source /etc/profile</code>
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1.4验证</p>
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<code class="plain plain">java –version</code>
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打印当前安装的jdk版本号java version "1.7.0_60"</p>
<p>
<strong>2、tomcat的安装</strong></p>
<p>
2.1下载tomcat</p>
<p>
从tomcat官网（http://tomcat.apache.org/download-70.cgi）下载tomcat的压缩包apache-tomcat-7.0.54.tar.gz。官网有三部分Binary Distributions，Deployer，Extras，解释如下：</p>
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<code class="plain plain">Binary Distributions </code>
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<code class="plain spaces"> </code>
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<code class="plain plain">Core: </code>
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<code class="plain plain">zip (pgp, md5) </code>
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<code class="plain plain">tar.gz (pgp, md5) </code>
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<code class="plain plain">32-bit Windows zip (pgp, md5) </code>
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<code class="plain plain">64-bit Windows zip (pgp, md5) </code>
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<code class="plain plain">64-bit Itanium Windows zip (pgp, md5) </code>
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<code class="plain plain">32-bit/64-bit Windows Service Installer (pgp, md5) </code>
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<code class="plain plain">Full documentation: </code>
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<code class="plain plain">tar.gz (pgp, md5)                                     </code>
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<code class="plain plain">Deployer: </code>
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<code class="plain plain">zip (pgp, md5) </code>
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<code class="plain plain">tar.gz (pgp, md5)                                    </code>
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<code class="plain plain">Extras: </code>
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<code class="plain plain">JMX Remote jar (pgp, md5) </code>
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<code class="plain plain">Web services jar (pgp, md5) </code>
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<code class="plain plain">JULI adapters jar (pgp, md5) </code>
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<code class="plain plain">JULI log4j jar (pgp, md5) </code>
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<code class="plain plain">Embedded: </code>
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<code class="plain plain">tar.gz (pgp, md5) </code>
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<code class="plain plain">zip (pgp, md5)</code>
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zip用于windows操作系统,tar.gz用于unix和linux操作系统.   </p>
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Binary Distributions Core:这列下的为直接运行安装文件.   </p>
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Deployer: 这列下的为程序员编程所用文件.    </p>
<p>
Source Code Distributions :这列下的为tomcat源代码.   </p>
<p>
2.2解压安装</p>
<p>
2.2.1将apache-tomcat-7.0.54.tar.gz上传到服务器并移动到/usr/local目录下</p>
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<code class="bash functions">sudo</code> <code class="bash functions">mv</code> <code class="bash plain">apache-tomcat-7.0.54.</code><code class="bash functions">tar</code><code class="bash plain">.gz</code><code class="bash plain">/usr/local/</code>
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2.2.2进入/usr/local目录（cd /usr/local/）解压</p>
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<code class="bash functions">sudo</code> <code class="bash functions">tar</code> <code class="bash plain">-zxvf apache-tomcat-7.0.54.</code><code class="bash functions">tar</code><code class="bash plain">.gz</code>
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2.2.3将apache-tomcat-7.0.54重命名为tomcat</p>
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<code class="bash functions">mv</code> <code class="bash plain">apache-tomcat-7.0.54 tomcat</code>
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2.2.4删除apache-tomcat-7.0.54.tar.gz</p>
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2.3修改tomcat的端口</p>
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进入cd/usr/local/apache-tomcat-7.0.42/conf/目录下，打开server.xml（sudo vim server.xml）将端口8080修改为8081。</p>
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<code class="xml plain"><</code><code class="xml keyword">Connector</code> <code class="xml color1">port</code><code class="xml plain">=</code><code class="xml string">"8081"</code><code class="xml color1">protocol</code><code class="xml plain">=</code><code class="xml string">"HTTP/1.1"</code>
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<code class="xml spaces">    </code><code class="xml color1">connectionTimeout</code><code class="xml plain">=</code><code class="xml string">"20000"</code>
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<code class="xml spaces">    </code><code class="xml color1">redirectPort</code><code class="xml plain">=</code><code class="xml string">"8443"</code><code class="xml plain">/></code>
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2.4验证</p>
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切换到root用户下sudo –i,启动tomcat（/usr/local/apache-tomcat-7.0.42/bin/startup.sh），在浏览器中输入http://localhost:8081/看到tomcat的欢迎页面。localhost替换为Linux服务器IP。</p>
<p>
2.5tomcat内存优化</p>
<p>
Tomcat内存优化主要是对tomcat启动参数优化，我们可以在tomcat的启动脚本catalina.sh中设置 JAVA_OPTS 参数。我的服务器是6G内存，所以我设置JVM启动参数大些，个人可以根据自己的实际情况进行设置。</p>
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<span><u>复制代码</u></span> 代码如下:</div>
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JAVA_OPTS='-Xms2048m -Xmx4096m -Xmn1g-Xss1024k -XX:NewRatio=4 -XX:SurvivorRatio=4 -XX:PermSize=1024m-XX:MaxPermSize=1024m -XX:MaxTenuringThreshold=0 -XX:+UseParallelGC-XX:ParallelGCThreads=20 -XX:+UseParallelOldGC -XX:+UseAdaptiveSizePolicy' </div>
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</p>
<p>
到此整个安装配置完成，以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持。</p>
<p>
原文链接：http://blog.csdn.net/jinwufeiyang/article/details/70836257</p>

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详解Linux下JDK、Tomcat的安装及配置