c5a4068e84
* add state and callback pattern * add command and template-method pattern * add iterator pattern * add bridege and DI pattern * fix issue #1600 * add converter,proxy,visitor pattern * add caching,composite,delegation,dirty-flag,interpreter patterns * add dao and producer-consumer * add dto and provate class data pattern * fix #1646 png path problems * fix #1646 composite png path case problem * add abstract document pattern and version-number pattern * add ambassador pattern * add acyclic-visitor and api-gateway pattern * add abstract-factory pattern * add active-object pattern * add aggregator-microservices and arrange-act-assert pattern * update async-method-invocation pattern * add balking and business-delegate pattern * add bytecode and circuit-break pattern * update arrange/act/assert pattern problems * add csch pattern * add language code, correct pic path * #1805 update permalink Co-authored-by: Subhrodip Mohanta <subhrodipmohanta@gmail.com> Co-authored-by: Mike <admin@xiaod.info> Co-authored-by: Ilkka Seppälä <iluwatar@users.noreply.github.com>
layout, title, folder, permalink, categories, language, tags
| layout | title | folder | permalink | categories | language | tags | ||
|---|---|---|---|---|---|---|---|---|
| pattern | Caching | caching | /patterns/caching/ | Behavioral | zh |
|
目的
为了避免昂贵的资源重新获取，方法是在资源使用后不立即释放资源。资源保留其身份，保留在某些快速访问的存储中，并被重新使用，以避免再次获取它们。
类图
适用性
在以下情况下使用缓存模式
- 重复获取，初始化和释放同一资源会导致不必要的性能开销。