kali 安装java jdk

sudo apt-get remove openjdk*

sudo apt autoremove

tar -zxvf jdk-8u241-linux-x64.tar_060badc66d950764f844.gz 

vim /etc/profile

#JAVA JDK
export JAVA_HOME=/opt/jdk1.8.0_241
export CLASSPATH=.:${JAVA_HOME}/lib
export PATH=${JAVA_HOME}/bin:$PATH 

source /etc/profile

update-alternatives --install /usr/bin/java java /opt/jdk1.8.0_241/bin/java 1
update-alternatives --install /usr/bin/javac javac /opt/jdk1.8.0_241/bin/javac 1
update-alternatives --set java /opt/jdk1.8.0_241/bin/java
update-alternatives --set javac /opt/jdk1.8.0_241/bin/javac

java -version

<h2><a id="java_0"></a>先卸载原有java版本</h2> <p>kali自带的java版本为 Openjdk</p> <pre><div class="hljs"><code class="lang-shell">sudo apt-get remove openjdk* </code></div></pre> <p>卸载不需要的java软件</p> <pre><div class="hljs"><code class="lang-shell">sudo apt autoremove </code></div></pre> <h2><a id="opt_10"></a>解压到/opt文件夹</h2> <pre><div class="hljs"><code class="lang-shell">tar -zxvf jdk-8u241-linux-x64.tar_060badc66d950764f844.gz </code></div></pre> <h2><a id="_16"></a>设置环境变量</h2> <pre><div class="hljs"><code class="lang-shell">vim /etc/profile </code></div></pre> <pre><div class="hljs"><code class="lang-shell"><span class="hljs-meta">#</span><span class="language-bash">JAVA JDK</span> export JAVA_HOME=/opt/jdk1.8.0_241 export CLASSPATH=.:${JAVA_HOME}/lib export PATH=${JAVA_HOME}/bin:$PATH </code></div></pre> <pre><div class="hljs"><code class="lang-shell">source /etc/profile </code></div></pre> <p>依次执行命令</p> <pre><code class="lang-powershell">update-alternatives --install /usr/bin/java java /opt/jdk1.8.0_241/bin/java 1 update-alternatives --install /usr/bin/javac javac /opt/jdk1.8.0_241/bin/javac 1 update-alternatives --set java /opt/jdk1.8.0_241/bin/java update-alternatives --set javac /opt/jdk1.8.0_241/bin/javac </code></pre> <h2><a id="_39"></a>查询结果</h2> <pre><div class="hljs"><code class="lang-shell">java -version </code></div></pre> <p>参考：<br /> https://blog.csdn.net/dhait/article/details/111083963</p>