> For the complete documentation index, see [llms.txt](https://ankang.gitbook.io/commons/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://ankang.gitbook.io/commons/commons-beans/gong-neng/shu-xing-hu-lve.md).

# 属性忽略

某些情况下，源对象和目标对象中可能存在同名的字段，如果不希望`BeanUtils`进行自动拷贝，使用者可以设置`@Mapping(ignore=true)`忽略该字段。

```java
class Foo {
    String name = "foo";
}
class FooDto {
    @Mapping(ignore=true)
    String name;
}

FooDto fooDto = BeanUtils.copyProperties(foo, FooDto.class);

System.out.println(fooDto.getName()) // null
```