{"id":8643,"date":"2023-11-28T20:33:33","date_gmt":"2023-11-28T12:33:33","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=8643"},"modified":"2023-12-06T10:55:33","modified_gmt":"2023-12-06T02:55:33","slug":"spring-cache-san-zhong-chang-yong-de-huan-cun-zhu","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/11\/28\/spring-cache-san-zhong-chang-yong-de-huan-cun-zhu\/","title":{"rendered":"Spring Cache\u4e09\u79cd\u5e38\u7528\u7684\u7f13\u5b58\u6ce8\u89e3\u548c\u610f\u4e49\uff1f"},"content":{"rendered":"<p>Spring Framework \u63d0\u4f9b\u4e86\u4e00\u5957\u57fa\u4e8e\u6ce8\u89e3\u7684\u7f13\u5b58\u62bd\u8c61\uff0c\u7528\u4e8e\u7b80\u5316\u5e94\u7528\u7a0b\u5e8f\u4e2d\u7684\u7f13\u5b58\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f Spring Cache \u4e2d\u4e09\u79cd\u5e38\u7528\u7684\u7f13\u5b58\u6ce8\u89e3\uff1a<\/p>\n<ol>\n<li>\n<strong>@Cacheable:<\/strong><\/p>\n<ul>\n<li>\n\u7528\u4e8e\u914d\u7f6e\u65b9\u6cd5\u7684\u7ed3\u679c\u5e94\u8be5\u88ab\u7f13\u5b58\u3002\u5982\u679c\u7f13\u5b58\u4e2d\u5df2\u7ecf\u5b58\u5728\u76f8\u540c\u952e\u7684\u6761\u76ee\uff0c\u65b9\u6cd5\u5c06\u4e0d\u4f1a\u88ab\u6267\u884c\uff0c\u800c\u662f\u76f4\u63a5\u8fd4\u56de\u7f13\u5b58\u4e2d\u7684\u503c\u3002\n<\/li>\n<li>\n\u793a\u4f8b\uff1a<\/p>\n<pre><code class=\"language-java\">@Cacheable(value = &quot;myCache&quot;, key = &quot;'user_' + #userId&quot;)\npublic User getUserById(Long userId) {\n    \/\/ ...\n}\n<\/code><\/pre>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<strong>@CachePut:<\/strong><\/p>\n<ul>\n<li>\n\u7528\u4e8e\u914d\u7f6e\u65b9\u6cd5\u7684\u7ed3\u679c\u5e94\u8be5\u88ab\u653e\u5165\u7f13\u5b58\uff0c\u65e0\u8bba\u8be5\u65b9\u6cd5\u7684\u8c03\u7528\u8005\u662f\u5426\u4ece\u7f13\u5b58\u4e2d\u83b7\u53d6\u7ed3\u679c\u3002\n<\/li>\n<li>\n\u793a\u4f8b\uff1a<\/p>\n<pre><code class=\"language-java\">@CachePut(value = &quot;myCache&quot;, key = &quot;'user_' + #user.id&quot;)\npublic User updateUser(User user) {\n    \/\/ ...\n    return user;\n}\n<\/code><\/pre>\n<\/li>\n<\/ul>\n<\/li>\n<li>\n<strong>@CacheEvict:<\/strong><\/p>\n<ul>\n<li>\n\u7528\u4e8e\u914d\u7f6e\u65b9\u6cd5\u7684\u7ed3\u679c\u5e94\u8be5\u4ece\u7f13\u5b58\u4e2d\u79fb\u9664\uff0c\u4ee5\u4fbf\u4e0b\u4e00\u6b21\u8c03\u7528\u8be5\u65b9\u6cd5\u65f6\u91cd\u65b0\u8ba1\u7b97\u7ed3\u679c\u5e76\u5b58\u5165\u7f13\u5b58\u3002\n<\/li>\n<li>\n\u793a\u4f8b\uff1a<\/p>\n<pre><code class=\"language-java\">@CacheEvict(value = &quot;myCache&quot;, key = &quot;'user_' + #userId&quot;)\npublic void deleteUser(Long userId) {\n    \/\/ ...\n}\n<\/code><\/pre>\n<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p>\u8fd9\u4e9b\u6ce8\u89e3\u53ef\u4ee5\u7528\u4e8e\u65b9\u6cd5\u7ea7\u522b\uff0c\u5141\u8bb8\u4f60\u7075\u6d3b\u5730\u914d\u7f6e\u7f13\u5b58\u884c\u4e3a\u3002\u5728\u4e0a\u8ff0\u793a\u4f8b\u4e2d\uff1a<\/p>\n<ul>\n<li><code>@Cacheable<\/code> \u548c <code>@CachePut<\/code> \u53ef\u4ee5\u914d\u7f6e\u7f13\u5b58\u7684\u503c\u3001\u7f13\u5b58\u7684\u952e\u4ee5\u53ca\u6240\u4f7f\u7528\u7684\u7f13\u5b58\u533a\u57df\uff08value\uff09\u3002<\/li>\n<li><code>@CacheEvict<\/code> \u7528\u4e8e\u6e05\u9664\u7f13\u5b58\u4e2d\u7684\u7279\u5b9a\u9879\u3002<\/li>\n<\/ul>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c<code>#userId<\/code> \u548c <code>#user.id<\/code> \u8fd9\u6837\u7684\u8868\u8fbe\u5f0f\u7528\u4e8e\u751f\u6210\u7f13\u5b58\u7684\u952e\u3002Spring Cache \u4f7f\u7528 SpEL\uff08Spring Expression Language\uff09\u6765\u8868\u793a\u8fd9\u6837\u7684\u8868\u8fbe\u5f0f\u3002\u8fd9\u5141\u8bb8\u4f60\u6839\u636e\u65b9\u6cd5\u53c2\u6570\u3001\u8fd4\u56de\u503c\u7b49\u52a8\u6001\u751f\u6210\u7f13\u5b58\u7684\u952e\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Spring Framework \u63d0\u4f9b\u4e86\u4e00\u5957\u57fa\u4e8e\u6ce8\u89e3\u7684\u7f13\u5b58\u62bd\u8c61\uff0c\u7528\u4e8e\u7b80\u5316\u5e94\u7528\u7a0b\u5e8f\u4e2d\u7684\u7f13\u5b58\u64cd\u4f5c\u3002\u4ee5\u4e0b\u662f Spri [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[100],"tags":[],"class_list":["post-8643","post","type-post","status-publish","format-standard","hentry","category-springboot"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/8643","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=8643"}],"version-history":[{"count":2,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/8643\/revisions"}],"predecessor-version":[{"id":16646,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/8643\/revisions\/16646"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=8643"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=8643"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=8643"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}