# 配置Java环境变量

其实对于MC来说一般不需要配置，但是为了避免不必要的麻烦，我们还是来配置一下

- ##### 首先对着**此电脑（我的电脑）**右击，点击属性
    
    ##### [ ![属性页面](https://wikidocs.tdogmc.cn/uploads/images/gallery/2024-08/scaled-1680-/z5rXQMYsJqhitAdX-1724275507783.jpg) ](https://wikidocs.tdogmc.cn/uploads/images/gallery/2024-08/z5rXQMYsJqhitAdX-1724275507783.jpg)
- ##### 如果你是**Win11**应该长这样，然后点击**高级系统设置**
    
    ##### [![image.png](https://wikidocs.tdogmc.cn/uploads/images/gallery/2024-08/scaled-1680-/btQChO2K27sLDqcQ-image.png)](https://wikidocs.tdogmc.cn/uploads/images/gallery/2024-08/btQChO2K27sLDqcQ-image.png)

<details id="bkmrk-win10-settings"><summary>Win10 高级系统设置</summary>

##### 同样也是点击**高级系统设置**  
[ ![Win10 系统设置](https://wikidocs.tdogmc.cn/uploads/images/gallery/2024-08/scaled-1680-/JxmNGnMusjwTbHWA-image.png) ](https://wikidocs.tdogmc.cn/uploads/images/gallery/2024-08/JxmNGnMusjwTbHWA-image.png)

</details>- ##### 点开之后长这样Win11和Win10一样的界面——点击**环境变量**
    
    ##### [ ![环境变量](https://wikidocs.tdogmc.cn/uploads/images/gallery/2024-08/scaled-1680-/RMqZypBT67Twxank-image.png) ](https://wikidocs.tdogmc.cn/uploads/images/gallery/2024-08/RMqZypBT67Twxank-image.png)
- ##### 来到这个界面——首先请点击**新建**
    
    ##### [![image.png](https://wikidocs.tdogmc.cn/uploads/images/gallery/2024-08/scaled-1680-/JNh9yRaL1GOvnS8t-image.png)](https://wikidocs.tdogmc.cn/uploads/images/gallery/2024-08/JNh9yRaL1GOvnS8t-image.png)
- ##### 分别输入这两个值后-点击确定
    
    **变量名：**
    
    ```
    JAVA_HOME
    ```
    
    **变量值：**
    
    ```
    C:\Program Files\Java\jdk-17
    ```
    
    <p class="callout info">如果在[**安装它！**](https://wikidocs.tdogmc.cn/books/java/page/f340f "安装它！")这步中你没有修改**默认的安装位置，**那么直接复制粘贴上面的变量值即可；倘若你修改了位置，请在变量值处填写你**修改后**的Java目录（*例如：C:\\我把java安装在这\\jdk-17*）如果安装的是别的版本的Java同理  
    **（你可以直接使用下方的‘浏览目录’找到Java安装目录，注意不要带\\bin）**</p>
    
    ##### [ ![Java 变量路径](https://wikidocs.tdogmc.cn/uploads/images/gallery/2024-08/scaled-1680-/maNQTyn1vDR4mQPo-image.png) ](https://wikidocs.tdogmc.cn/uploads/images/gallery/2024-08/maNQTyn1vDR4mQPo-image.png)
- ##### 请在下方**系统变量**中找到**“path”**——点击**编辑**  [ ![系统变量](https://wikidocs.tdogmc.cn/uploads/images/gallery/2024-08/scaled-1680-/noBxDxoLwjoxxRnu-1724277770612.jpg) ](https://wikidocs.tdogmc.cn/uploads/images/gallery/2024-08/noBxDxoLwjoxxRnu-1724277770612.jpg)

- ##### 点击新建，然后在输入框内输入Java安装目录中**bin**目录的地址
    
    ```
    C:\Program Files\Java\jdk-17\bin
    ```
    
    <p class="callout info">如果你修改了Java路径，请替换为**修改后**的Java安装路径  
    </p>
    
    <p class="callout warning align-left">如果你还安装了别的Java，你还需要把刚添加的这条变量**上移**至最顶端</p>
    
    ##### [![确认](https://wikidocs.tdogmc.cn/uploads/images/gallery/2024-08/scaled-1680-/oypKRjMHrmWbgNUJ-image.png)](https://wikidocs.tdogmc.cn/uploads/images/gallery/2024-08/oypKRjMHrmWbgNUJ-image.png)
- ##### 然后一路**确定**退出即可保存——配置完毕