我可以在 Spring 中将方法注释为可缓存吗？
我想使用一个注释将方法调用的结果标记为可缓存。当提供时，它将使用缓存提供程序来缓存给定输入的输出。例如：
@Cacheable
public Bar doExpensiveCalculation(Foo foo) {
Bar bar = jiggeryPokeryWith(foo);
return bar;
}
...
Foo foo1 = new Foo(...);
Foo foo2 = new Foo(...);
Bar bar1 = doExpensiveCalculation(foo1);
Bar bar2 = doExpensiveCalculation(foo2);
Bar bar3 = doExpensiveCalculation(foo1);
// no calculation done on previous line, cached result == bar1
在这个例子的最后，缓存将包含
{doExpensiveCalculation(foo1) -> bar1,
doExpensiveCalculation(foo2) -> bar2}
我确信使用 AOP 是可能的。由于 Spring 既支持 AOP 又支持缓存，因此它似乎非常适合这个用例。
存在这样的功能吗？
I would like to use an annotation that marked the result of a method call as cacheable. When provided it would use a caching provider to cache the output for the given input. For example:
@Cacheable
public Bar doExpensiveCalculation(Foo foo) {
Bar bar = jiggeryPokeryWith(foo);
return bar;
}
...
Foo foo1 = new Foo(...);
Foo foo2 = new Foo(...);
Bar bar1 = doExpensiveCalculation(foo1);
Bar bar2 = doExpensiveCalculation(foo2);
Bar bar3 = doExpensiveCalculation(foo1);
// no calculation done on previous line, cached result == bar1
At the end of this example the cache would contain
{doExpensiveCalculation(foo1) -> bar1,
doExpensiveCalculation(foo2) -> bar2}
I am sure this is possible using AOP. As Spring does both AOP and caching, it seems it would be a natural fit for this use case.
Does such a feature exist?
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此模块有您想要的内容。 （但实际上实现起来非常简单）
This module has what you want. (But it is actually pretty straightforward to implement)
不再需要谷歌代码，因为 spring 已经开箱即用： http://static.springsource.org/spring/docs/3.1.0.M1/spring-framework-reference/html/cache.html#cache -存储配置-ehcache
the google code is not required anymore as spring has it out of the box: http://static.springsource.org/spring/docs/3.1.0.M1/spring-framework-reference/html/cache.html#cache-store-configuration-ehcache