IDEA中xml文件头报错：URI is not registered (Settings | Languages & Frameworks | Schemas and DTDs）

以你之姓@ 2022-03-06 08:38 142阅读 0赞

### IDEA中xml文件头报错：URI is not registered (Settings | Languages & Frameworks | Schemas and DTDs） ###

> **有时候在 IDEA 中配置 spring 文件时会出现这个错误 URI is not registered (Settings | Languages & Frameworks | Schemas and DTDs)**

中文翻译就是统一资源标识符没有注册， 如下图：

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9pY29kZS5ibG9nLmNzZG4ubmV0_size_16_color_FFFFFF_t_70]

### 解决方法： ###

**（1）File > Settings > Languages & frameworks > Schemas and DTDs  
点击下面的 +**  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9pY29kZS5ibG9nLmNzZG4ubmV0_size_16_color_FFFFFF_t_70 1]

**（2）输入有问题的 dtd 值**  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9pY29kZS5ibG9nLmNzZG4ubmV0_size_16_color_FFFFFF_t_70 2]  
**（3）Apply > OK**

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9pY29kZS5ibG9nLmNzZG4ubmV0_size_16_color_FFFFFF_t_70 3]

[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9pY29kZS5ibG9nLmNzZG4ubmV0_size_16_color_FFFFFF_t_70]: /images/20220306/8bd85d39a5d147498ab183114c85b2b6.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9pY29kZS5ibG9nLmNzZG4ubmV0_size_16_color_FFFFFF_t_70 1]: /images/20220306/d7c5a9d473674fc4ac4d06ce4f6245a8.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9pY29kZS5ibG9nLmNzZG4ubmV0_size_16_color_FFFFFF_t_70 2]: /images/20220306/1aa2f820ecd84226aeca21a088879089.png
[watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9pY29kZS5ibG9nLmNzZG4ubmV0_size_16_color_FFFFFF_t_70 3]: /images/20220306/f29ac50dd74d4d17936730bf1f96949b.png