deepin 安装JDK
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<h2>下载JDK（Java SE）</h2>
<p>首先去观望下载JDK,我这里使用的是Adopt openJDK8版本：<br> 下载地址</p>
<p><img src="https://img-blog.csdnimg.cn/2021020615003819.png?x-oss-process=image/watermark,type_ZmFuZ3poZW5naGVpdGk,shadow_10,text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwMTc5NDc5,size_16,color_FFFFFF,t_70" alt="在这里插入图片描述"></p>
<h2>安装解压JDK到指定目录</h2>
<p>将压缩包复制到要安装的目录后，打开终端执行以下命令解压:<br> deeplin 默认下载的文件路径在：</p>
<pre><code>/home/[用户]/Downloads
</code></pre>
<p>（1）将压缩包复制到安装目录，我这里是<code>../install/java/jdk</code></p>
<pre><code class="prism language-bash"><span class="token function">cp</span> OpenJDK8U-jdk_x64_linux_hotspot_8u282b08.tar.gz <span class="token punctuation">..</span>/install/java/jdk
</code></pre>
<p>（2）解压缩：</p>
<pre><code class="prism language-bash"><span class="token function">tar</span> -zxvf OpenJDK8U-jdk_x64_linux_hotspot_8u282b08.tar.gz
</code></pre>
<h2>配置环境变量</h2>
<p>为了防止无法写入环境变量，我们须获得root(超级管理员)权限再写入，命令如下:</p>
<pre><code class="prism language-bash"><span class="token function">sudo</span> <span class="token function">su</span>
</code></pre>
<p>切换为root权限后，编辑环境变量文件：</p>
<pre><code class="prism language-bash">vim /etc/profile
</code></pre>
<p>打开profile文件之后在文末添加如下环境变量(根据自己的安装路径而定)：</p>
<pre><code class="prism language-bash">JAVA_HOME<span class="token operator">=</span>/home/hanliukui/install/java/jdk/jdk8u282-b08
CLASSPATH<span class="token operator">=</span>.:<span class="token variable">$JAVA_HOME</span>/bin.tools.jar
PATH<span class="token operator">=</span><span class="token variable">$JAVA_HOME</span>/bin:<span class="token variable">$PATH</span>
<span class="token function">export</span> JAVA_HOME CLASSPATH PATH
</code></pre>
<p>配置立即生效:</p>
<pre><code class="prism language-bash"><span class="token function">source</span> /etc/profile
</code></pre>
<h2>检测是否安装成功</h2>
<p>输入<code>java -version</code>查看是否配置好环境(如下字样表明配置成功)：<br> <img src="https://img-blog.csdnimg.cn/20210206152413314.png" alt="在这里插入图片描述"></p>
<h2>参考</h2>
<ul><li>一篇文章快速搞定——deepin搭建java开发环境<br> https://blog.csdn.net/weixin_44950174/article/details/105173254#t2</li></ul><br><br>
来源：https://www.cnblogs.com/dwywtd/p/16842650.html
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