Java基础篇之jdk、jre环境变量的配置

骑猪看日落 2023-10-04 11:27 69阅读 0赞

### 一、先找到JDK的安装路径，复制bin所在目录路径，下图是我本地的JDK安装路径： ###

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwMTg3NzAy_size_16_color_FFFFFF_t_70]  
这里JDK已经包含了JRE，所以不需要再去额外的安装JRE。

### 二、打开环境变量的配置界面，如下图 ###

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwMTg3NzAy_size_16_color_FFFFFF_t_70 1]  
右键此电脑，点击属性进入下图：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwMTg3NzAy_size_16_color_FFFFFF_t_70 2]  
点击高级系统设置，进入下图：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwMTg3NzAy_size_16_color_FFFFFF_t_70 3]  
再点击环境变量，就到了环境变量的配置界面了  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwMTg3NzAy_size_16_color_FFFFFF_t_70 4]  
这是win10系统的界面，如果是win7的也大同小异。

### 三、新建系统变量JAVA\_HOME，它对应的值就是第一步复制的bin文件夹所在目录路径，并添加进入path路径中： ###

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwMTg3NzAy_size_16_color_FFFFFF_t_70 5]  
输完后点击确定即可。接下来添加到系统变量path中：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwMTg3NzAy_size_16_color_FFFFFF_t_70 6]  
选中Path然后点击编辑，进入以下界面：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwMTg3NzAy_size_16_color_FFFFFF_t_70 7]  
点击新建，然后填入%JAVA\_HOME%\\bin就行了，点击确定就配置好了。

### 四、测试环境变量是否配置成功： ###

命令行任意目录输入：javac  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwMTg3NzAy_size_16_color_FFFFFF_t_70 8]  
输入:java  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwMTg3NzAy_size_16_color_FFFFFF_t_70 9]  
输入:java -version  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L3FxXzQwMTg3NzAy_size_16_color_FFFFFF_t_70 10]  
至此，Java环境变量就配置成功了。

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