小菜鸟学 Spring-bean scope (一)

this information below just for study record of mine.

默认情况下：Spring 创建singleton bean 以便于错误能够被发现。

延迟加载：延迟加载可以使bean 在被需要的时候实例化

Bean Scope

singleton :    Scopes a single bean definition to a single object instance per Spring IoC container.

To put it another way, when you define a bean definition and it is scoped as a singleton, the Spring IoC container creates exactly one instance of the object defined by that bean definition. This single instance is stored in a cache of such singleton beans, and all subsequent requests and references for that named bean return the cached object.

prototype:    Scopes a single bean definition to any number of object instances

request:         Scopes a single bean definition to the lifecycle of a single HTTP request

session:  Scopes a single bean definition to the lifecycle of an HTTP Session

global session: Scopes a single bean definition to the lifecycle of a global HTTP Session







this come from http://static.springsource.org/spring/docs/3.2.x/spring-framework-reference/html/beans.html#beans-factory-scopes

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