速度快，号称比spring快100倍。
无外部配置(如需要使用外部可以可以选用Guice的扩展包)，完全基于annotation特性，支持重构，代码静态检查。
简单，快速，基本没有学习成本。
Guice和spring各有所长，Guice更适合与嵌入式或者高性能但项目简单方案，如OSGI容器，spring更适合大型项目组织。
注入方式
在我们谈到IOC框架，首先我们的话题将是构造，属性以及函数注入方式，Guice的实现只需要在构造函数，字段，或者注入函数上标注@Inject，如：
构造注入 public class OrderServiceImpl implements OrderService { private ItemService itemService; private PriceService priceService; @Inject public OrderServiceImpl(ItemService itemService, PriceService priceService) { this.itemService = itemService; this.priceService = priceService; } ... } 属性注入 public class OrderServiceImpl implements OrderService { private ItemService itemService; private PriceService priceService; @Inject public void init(ItemService itemService, PriceService priceService) { this.itemService = itemService; this.priceService = priceService; } ... } 函数(setter)注入 public class OrderServiceImpl implements OrderService { private ItemService itemService; private PriceService priceService; @Inject public void setItemService(ItemService itemService) { this.itemService = itemService; } @Inject public void setPriceService(PriceService priceService) { this.priceService = priceService; } ... } |
