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<h1 id="heading-0">Win7下jdk-12环境变量配置</h1>
<h2 id="heading-1">一、下载JDK</h2>
<ol>
<li>JDK官方下载地址：<a href="https://blogweb.cn/link?target=https://www.oracle.com/technetwork/java/javase/downloads/jdk12-downloads-5295953.html" target="_blank" rel="nofollow noopener noreferrer">www.oracle.com/technetwork…</a></li>
<li>选择：“Accept License Agreement”</li>
<li>下载的文件：jdk-12_windows-x64_bin.exe</li>
</ol>
<h2 id="heading-2">二、安装JDK</h2>
<ol>
<li>一直下一步即可。</li>
</ol>
<h2 id="heading-3">三、配置环境变量</h2>
<ol>
<li>找到计算机-右键选择属性-高级系统设置</li>
<li>选择高级-环境变量</li>
<li>在系统变量中新建：
变量名：JAVA_HOME
变量值：E:\Java\jdk-12.0.1
如图</li>
</ol>
<p><img src="https://img.blogweb.cn/article/6a4f6f23ae6f4bcfb97d337cb5f7c016.webp" loading="lazy" alt="Win7下jdk-12环境变量配置"></p>
<ol>
<li>找到系统变量中的Path，在Path的末尾添加：%JAVA_HOME%\bin;
如图</li>
</ol>
<p><img src="https://img.blogweb.cn/article/e65066df4f4141ef937cbd8da3898190.webp" loading="lazy" alt="Win7下jdk-12环境变量配置"></p>
<h2 id="heading-4">四、验证</h2>
<p>在命令行中数据java -version,出现java的版本号即配置成功。
如图</p>
<p><img src="https://img.blogweb.cn/article/81ca90d7288448e0ae1f1fafa04274a6.webp" loading="lazy" alt="Win7下jdk-12环境变量配置"></p>
<h2 id="heading-5">五、注意事项</h2>
<ol>
<li>JAVA_HOME 仅仅在用户的环境变量中配置，会不成功。</li>
</ol>

Win7下jdk-12环境变量配置一、下载JDK二、安装JDK三、配置环境变量四、验证在命令行中数据java-version,出现java的版本号即配置成功。如图五、注意事项