JDK1.8 java8安装及配置

迷南。 2023-06-25 03:18 4阅读 0赞

这里以win10系统安装java8为例。由于步骤比较详细，所以看起来比较复杂，实际操作起来其实很简单。

## 一、 下载安装包 ##

https://download.csdn.net/download/hantaozi/12048397

## 二、安装 ##

一、首先、在D盘创建一个“java”文件夹，在文件夹里创建个“ jre1.8.0\_211”文件夹；  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hhbnRhb3pp_size_16_color_FFFFFF_t_70]  
二、找到下载“jdk-8u211-windows-x64”；![在这里插入图片描述][20191225120126602.png]  
三、打开下载下来的程序，如出现下面提示点击“是”；  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hhbnRhb3pp_size_16_color_FFFFFF_t_70 1]  
四、点击“下一步”；  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hhbnRhb3pp_size_16_color_FFFFFF_t_70 2]  
五、点击“更改”；  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hhbnRhb3pp_size_16_color_FFFFFF_t_70 3]  
六、文件夹名设置为“D:\\Java\\jdk1.8.0\_211\\”点击“确定”；  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hhbnRhb3pp_size_16_color_FFFFFF_t_70 4]  
七、点击“下一步”；  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hhbnRhb3pp_size_16_color_FFFFFF_t_70 5]  
八、等待安装；  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hhbnRhb3pp_size_16_color_FFFFFF_t_70 6]  
九、安装过程将弹出一个新窗口，点击“更改”；  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hhbnRhb3pp_size_16_color_FFFFFF_t_70 7]  
十、选择第一步新建的“jre1.8.0\_211”文件夹，点击“确认”；

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hhbnRhb3pp_size_16_color_FFFFFF_t_70 8]  
十一、点击“下一步“；  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hhbnRhb3pp_size_16_color_FFFFFF_t_70 9]  
十二、等待安装完成；  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hhbnRhb3pp_size_16_color_FFFFFF_t_70 10]  
十三、点击“关闭”安装即完成；  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hhbnRhb3pp_size_16_color_FFFFFF_t_70 11]

**休息一下，接下来就是配置系统环境**

## 三、配置环境 ##

一、按“Win+R键”（win键一般在键盘左下角像“田”一样的那个键），在“运行窗口中输入“sysdm.cpl”，点击“确定”；  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hhbnRhb3pp_size_16_color_FFFFFF_t_70 12]  
二、选择“高级——环境变量”；  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hhbnRhb3pp_size_16_color_FFFFFF_t_70 13]  
三、点击“新建”；  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hhbnRhb3pp_size_16_color_FFFFFF_t_70 14]  
四、变量名输入“JAVA\_HOME”，变量值输入“D:\\Java\\jdk1.8.0\_211\\”（即刚刚的安装位置），点击“确认”；

> JAVA\_HOME

> D:\\Java\\jdk1.8.0\_211\\

![在这里插入图片描述][20191225121255654.png]  
五、再重复三的操作新建一个变量，变量名输入“CLASSPATH”，变量值输入“.;%JAVA\_HOME%\\lib;%JAVA\_HOME%\\lib\\dt.jar;%JAVA\_HOME%\\lib\\tools.jar ”（注意，前面的点不要复制漏了），点击“确认”；

> CLASSPATH

> .;%JAVA\_HOME%\\lib;%JAVA\_HOME%\\lib\\dt.jar;%JAVA\_HOME%\\lib\\tools.jar

![在这里插入图片描述][20191225121309518.png]  
六、 双击变量“Path”；  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hhbnRhb3pp_size_16_color_FFFFFF_t_70 15]  
七、点击新建，输入“%JAVA\_HOME%\\bin”

> %JAVA\_HOME%\\bin

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hhbnRhb3pp_size_16_color_FFFFFF_t_70 16]  
八、再次点击新建，输入“%JAVA\_HOME%\\jre\\bin”，点击确定。

> %JAVA\_HOME%\\jre\\bin

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hhbnRhb3pp_size_16_color_FFFFFF_t_70 17]  
九、点击“确定”；  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hhbnRhb3pp_size_16_color_FFFFFF_t_70 18]  
十、环境就配置好了，我们来验证一下。按“Win+R键”，在“运行”窗口中输入“cmd ”，点击“确定”。  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hhbnRhb3pp_size_16_color_FFFFFF_t_70 19]  
十一、输入“javac”，回车。显示如下即配置完成。

> javac

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2hhbnRhb3pp_size_16_color_FFFFFF_t_70 20]

**此就安装配置好啦！！！**

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