# XML

> For the complete documentation index, see [llms.txt](https://www.jetbrains.com/zh-cn/help/idea/llms.txt).

IntelliJ IDEA 提供了强大的 XML 支持，包括 [结构验证](validating-web-content-files.html)、 [格式化](reformat-and-rearrange-code.html)（ `Ctrl+Alt+L` (Windows), `⌘ ⌥ L` (macOS), `⌘ ⌥ L` (IntelliJ IDEA Classic (macOS)), `⌘ ⌥ L` (macOS System Shortcuts), `Ctrl+Alt+L` (XWin), `Ctrl+Alt+L` (GNOME), `Alt+Shift+L` (KDE), `Ctrl+Alt+L` (Emacs), `Ctrl+Alt+L` (Sublime Text), `⌘ ⌥ L` (Sublime Text (macOS)), `Ctrl+Alt+Enter` (Visual Studio), `⌘ ⌥ ⏎` (Visual Studio (macOS)), `Alt+Shift+F` (NetBeans), `Ctrl+Alt+L` (Eclipse), `⌘ ⇧ F` (Eclipse (macOS))）以及 [缩进](indentation.html)（ `Ctrl+Alt+I` (Windows), `⌃ ⌥ I` (macOS), `⌘ ⌥ I` (IntelliJ IDEA Classic (macOS)), `⌃ ⌥ I` (macOS System Shortcuts), `Ctrl+Alt+I` (XWin), `Ctrl+Alt+I` (GNOME), `Ctrl+Alt+I` (KDE), `Ctrl+Alt+I` (Emacs), `Ctrl+Alt+I` (Sublime Text), `⌃ ⌥ I` (Sublime Text (macOS)), `Ctrl+Alt+I` (Visual Studio), `⌃ ⌥ I` (Visual Studio (macOS)), `Ctrl+Alt+I` (NetBeans), `Ctrl+I` (Eclipse), `⌘ I` (Eclipse (macOS))，符合 [XML 代码样式](settings-code-style-xml.html)）、 [导入未绑定的命名空间](#import-xml-namespace)、 [查看代码结构](viewing-structure-of-a-source-file.html)、 [展开和移除标签](working-with-source-code.html#editor_statement_select)（ `Ctrl+Shift+Delete` (Windows), `⌘ ⇧ ⌦` (macOS), `⌘ ⇧ ⌦` (IntelliJ IDEA Classic (macOS)), `⌘ ⇧ ⌦` (macOS System Shortcuts), `Ctrl+Shift+Delete` (XWin), `Ctrl+Shift+Delete` (GNOME), `Ctrl+Shift+Delete` (KDE), `Ctrl+Shift+Delete` (Emacs), `Ctrl+Shift+Delete` (Sublime Text), `⌘ ⇧ ⌦` (Sublime Text (macOS)), `Ctrl+Shift+Delete` (Visual Studio), `⌘ ⇧ ⌦` (Visual Studio (macOS)), `Ctrl+Shift+Delete` (NetBeans), `Alt+R` (Eclipse), `Ctrl+Shift+Delete` (Eclipse (macOS))）、生成 [DTD 文件](generating-dtd.html)和 [从实例文档生成模式](generating-xml-schema-from-instance-document.html)，以及语法和错误高亮显示、 [代码补全](auto-completing-code.html)（ `Ctrl+Space` (Windows), `⌃ Space` (macOS), `⌃ Space` (IntelliJ IDEA Classic (macOS)), `⌃ Space` (macOS System Shortcuts), `Ctrl+Space` (XWin), `Ctrl+Space` (GNOME), `Ctrl+Space` (KDE), `Alt+/` (Emacs), `Ctrl+Space` (Sublime Text), `⌃ Space` (Sublime Text (macOS)), `Ctrl+Space` (Visual Studio), `⌃ Space` (Visual Studio (macOS)), `Ctrl+Space` (NetBeans), `Ctrl+Space` (Eclipse), `⌃ Space` (Eclipse (macOS))）、 [意图操作](intention-actions.html)（ `Alt+Enter` (Windows), `⌥ ⏎` (macOS), `⌥ ⏎` (IntelliJ IDEA Classic (macOS)), `⌥ ⏎` (macOS System Shortcuts), `Alt+Enter` (XWin), `Alt+Enter` (GNOME), `Alt+Enter` (KDE), `Alt+Enter` (Emacs), `Alt+Enter` (Sublime Text), `⌥ ⏎` (Sublime Text (macOS)), `Alt+Enter` (Visual Studio), `⌥ ⏎` (Visual Studio (macOS)), `Alt+Enter` (NetBeans), `Ctrl+1` (Eclipse), `⌘ 1` (Eclipse (macOS))）、 [快速文档查阅](viewing-reference-information.html#inline-quick-documentation)（ `Ctrl+Q` (Windows), `F1` (macOS), `⌃ J` (IntelliJ IDEA Classic (macOS)), `⌘ I` (macOS System Shortcuts), `Ctrl+Q` (XWin), `Ctrl+Q` (GNOME), `Ctrl+Q` (KDE), `Ctrl+Q` (Emacs), `Ctrl+Q` (Sublime Text), `Ctrl+Q` (Sublime Text (macOS)), `Ctrl+K, I` (Visual Studio), `⌘ K, I` (Visual Studio (macOS)), `Ctrl+Q` (NetBeans), `Alt+Middle-Click` (Eclipse), `⌥ Middle-Click` (Eclipse (macOS))）等功能。

IntelliJ IDEA 使用  Xerces 2.11 ，这是由 Apache 软件基金会小组开发的一个 XML 解析器。

## 导入 XML 命名空间

如果使用来自未绑定命名空间的标记或特性，IntelliJ IDEA 会检测到问题并显示工具提示。

![提示：引用未绑定的命名空间](https://resources.jetbrains.com/help/img/idea/2026.3/import_unbound_namespace_tooltip.png)

要解决此问题，请使用 IntelliJ IDEA 建议的快速修复。

Procedure:

* 按下 `Alt+Enter` (Windows), `⌥ ⏎` (macOS), `⌥ ⏎` (IntelliJ IDEA Classic (macOS)), `⌥ ⏎` (macOS System Shortcuts), `Alt+Enter` (XWin), `Alt+Enter` (GNOME), `Alt+Enter` (KDE), `Alt+Enter` (Emacs), `Alt+Enter` (Sublime Text), `⌥ ⏎` (Sublime Text (macOS)), `Alt+Enter` (Visual Studio), `⌥ ⏎` (Visual Studio (macOS)), `Alt+Enter` (NetBeans), `Ctrl+1` (Eclipse), `⌘ 1` (Eclipse (macOS))。 如果有多个选项，请从列表中选择所需的命名空间。

[Video](https://resources.jetbrains.com/help/img/idea/2026.3/ws_unboundNameSpace2.mp4)

* 或者，悬停在问题上并在弹出窗口中点击   创建命名空间声明  。 如果有多个选项，请从列表中选择所需的命名空间。

[Video](https://resources.jetbrains.com/help/img/idea/2026.3/ws_unboundNameSpace1.mp4)

根据文件类型，IntelliJ IDEA 会创建命名空间声明或 taglib。

## 配置语法高亮

您可以根据自己的偏好和习惯配置 XML 感知语法高亮。

Procedure:

1. 在   设置   对话框（ `Ctrl+Alt+S` (Windows), `⌘ Comma` (macOS), `⌘ Comma` (IntelliJ IDEA Classic (macOS)), `⌘ Comma` (macOS System Shortcuts), `Ctrl+Alt+S` (XWin), `Ctrl+Alt+S` (GNOME), `Ctrl+Alt+S` (KDE), `Ctrl+Alt+S` (Emacs), `Ctrl+Alt+S` (Sublime Text), `⌘ Comma` (Sublime Text (macOS)), `Ctrl+Alt+S` (Visual Studio), `⌘ Comma` (Visual Studio (macOS)), `Ctrl+Alt+S` (NetBeans), `Ctrl+Alt+S` (Eclipse), `⌘ Comma` (Eclipse (macOS))），转到  `编辑器 | 颜色方案 | XML` 。

2. 选择配色方案，接受从默认设置继承的高亮设置，或按照 [颜色与字体](configuring-colors-and-fonts.html) 中的说明进行自定义。