spring scope prototype

The bean in the 1:spring container defaults to a single case pattern, and the change to a non-single mode requires adding @scope ("prototype") to the class 2: After adding @scope ("prototype"), the reference to the class can not be injected with @autowired 3:struts2 defaul

Spring By default scope is a single case pattern, that is, scope= "Singleton", which creates only one action object, that is, each access is the same action object and the data is unsafe. And struts2 is required to each access requires a different action, scope= "prototype"

instance that the container gives each time should be different, but why the last print is the same. The reason is not whether the scope of Newsbean is prototype, but the way the instance is obtained. After the container injects an instance of Fxnewsbean into Mocknewpersister, Mocknewpersister will always hold a reference to the Fxnewsbean instance. Although each output calls the Getnewsbean () method to

When we write many methods in an action class (in fact, it is a function of the concept of module programming), each method may not be the same return state, If the action does not @scope ("prototype"), it is possible to report an error that xxxaction was not found. Writing this means that each request is re-created with an action, Corresponds to Singalon, commonly known as "multiple cases" (also called pro

Javascript: traversing the prototype chain, calling stack, and scope chain In JavaScript, there are three common chain structures: prototype chain, call stack (Call StackScope chain. This article does not want to talk about the basic knowledge of these concepts, but rather shows how to traverse the three chain structures to deepen understanding. Traverse

Understanding javascript prototype and scope series (12) -- Introduction [Scope], javascript prototype For the articles in the previous sections, refer to understanding the javascript prototype and scope series. When it comes to

In JavaScript, there are three common chain structures: prototype chain, call stack (Call StackScope chain. This article does not want to talk about the basic knowledge of these concepts, but rather shows how to traverse the three chain structures to deepen understanding. Traverse prototype chain In JavaScript, any object has its own prototype chain. A

The scope of scope is studied today. The default is the singleton mode, which is scope= "singleton". In addition, scope also has prototype, request, session, global session scope. Scope

Scope, also known as scope, in the Spring IoC container refers to the requested visible range of the bean object it creates relative to other bean objects. There are several scopes in the Spring IoC container: The basic scope (singleton,

container management, of course, is not thread-safe, but the so-called thread safety is also relative If your class is not stateful, the performance of the singleton is higher because there is only one instance. If your class is stateful, then you must display the setting to prototype in the SSH2 project, when Struts2 's action is left to spring management, spring