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### 55.1.3. 默认import语句
为了帮助你减少Groovy代码量，一些`import`语句被自动包含进来了。注意上面的示例中引用`@Component`，`@RestController`和`@RequestMapping`而没有使用全限定名或`import`语句。
**注**：很多Spring注解在不使用`import`语句的情况下可以正常工作。尝试运行你的应用，看一下在添加imports之前哪些会失败。