只需将您的dataBean声明为ManagedProperty.

Just declare your dataBean as ManagedProperty.

从标记中，我认为它与JSF2.0有关.

From the tagging I assume it's about JSF2.0.

您需要在bean2中将bean1声明为托管属性.

You need to declare bean1 as managed property in bean2.

应该看起来像

@ManagedBean
public class Bean1{
}

和

@ManagedBean
public class Bean2{

  @ManagedProperty(value="#{bean1}") 
  Bean1 bean1;
  //setter & getter of bean1

}

另请参见

• 带示例的漂亮文章