【晓时代】windows 安装 Java8 及环境变量配置
一、下载
1、进入oracle官网https://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html
2、点击Accept License Agreement
3、选择与你操作系统对应位数的jdk下载(我的是64位的就下载jdk-8u231-windows-x64.exe)
4、登陆Oracle账号开始下载
账号:599915046@qq.com
密码:Asd123456
ps:下载很慢,睡一觉可能就下好了0.0
![image.png](https://upload-images.jianshu.io/upload_images/16432686-f66566998b3fecbc.png&originHeight=353&originWidth=575&size=47605&status=done&style=none&width=575?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)
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二、安装
1、记录 jdk 安装的路径 C:\Program Files\Java\jdk1.8.0_231\ ;也可以自定义路径,然后记住安装目录
![image.png](https://upload-images.jianshu.io/upload_images/16432686-7cae568427438184.png&originHeight=383&originWidth=504&size=29175&status=done&style=none&width=504?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)
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![image.png](https://upload-images.jianshu.io/upload_images/16432686-a4489e50d76f8462.png&originHeight=383&originWidth=706&size=22419&status=done&style=none&width=706?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)
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3、点击下一步完成安装
![image.png](https://upload-images.jianshu.io/upload_images/16432686-7e5dbff61277f9fb.png&originHeight=383&originWidth=706&size=47761&status=done&style=none&width=706?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)
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4、验证
打开 CMD 输入如下指令,显示以下结果表示安装成功
java -version
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![image.png](https://upload-images.jianshu.io/upload_images/16432686-0dfa9671c2ba6c77.png&originHeight=205&originWidth=555&size=12125&status=done&style=none&width=555?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)
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三、配置环境变量
1、右击“此电脑”-->单击“属性”-->单击“高级系统设置”-->单击“环境变量”
2、新建系统变量
变量名:JAVA_HOME
变量值:C:\Program Files\Java\jdk1.8.0_231\ (安装时记录的 jdk 安装路径)
![image.png](https://upload-images.jianshu.io/upload_images/16432686-935700df8ec922cc.png&originHeight=182&originWidth=652&size=8824&status=done&style=none&width=652?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)
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3、系统变量中找到 Path 在其末尾新增 ;%JAVA_HOME%\bin;
![image.png](https://upload-images.jianshu.io/upload_images/16432686-7d8ab9fee9797abf.png&originHeight=182&originWidth=647&size=11022&status=done&style=none&width=647?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)
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4、保存退出
环境变量配置完成 <<<
四、测试
cmd 中输入如下命令:
echo %JAVA_HOME%
验证结果如下:
![image.png](https://upload-images.jianshu.io/upload_images/16432686-6dfc9b5569cf11a6.png&originHeight=169&originWidth=490&size=9287&status=done&style=none&width=490?imageMogr2/auto-orient/strip%7CimageView2/2/w/1240)
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