{"id":1977,"date":"2023-04-01T10:40:47","date_gmt":"2023-04-01T02:40:47","guid":{"rendered":"https:\/\/www.appblog.cn\/?p=1977"},"modified":"2023-04-22T08:29:49","modified_gmt":"2023-04-22T00:29:49","slug":"how-can-spring-beans-be-reinjected","status":"publish","type":"post","link":"https:\/\/www.appblog.cn\/index.php\/2023\/04\/01\/how-can-spring-beans-be-reinjected\/","title":{"rendered":"Spring Bean \u5982\u4f55\u91cd\u65b0\u6ce8\u5165\uff1f"},"content":{"rendered":"<h2>\u6545\u4e8b\u80cc\u666f<\/h2>\n<p>\u4ee5Spring Cache Redis\u4e3a\u4f8b\uff0cNacos\u914d\u7f6e\u4e2d\u5fc3\u914d\u7f6e\u4e86cacheManager\u7684ttl\u53c2\u6570\uff0c\u4ee5<code>@NacosValue<\/code>\u7684\u5f62\u5f0f\u6ce8\u5165\u5e76\u914d\u7f6e\u4e3acacheManager\u7684\u53c2\u6570\u3002<br \/>\n\u4e86\u89e3Spring Cache\u7684\u670b\u53cb\u4eec\u5e94\u8be5\u660e\u767d\uff0c\u8fd9\u91cc\u7684cacheManager\u662fspring\u521d\u59cb\u5316\u65f6\u521d\u59cb\u5316\u7684\u4e00\u4e2aBean\uff0c\u8fd9\u4e2aBean\u5728\u521d\u59cb\u5316\u65f6\u4eceNacos\u83b7\u53d6\u4e86\u4e00\u4e2attl\u53c2\u6570\u5e76\u914d\u7f6e\u5728\u8fd9\u4e2aBean\u4e0a\u3002<\/p>\n<p><!-- more --><\/p>\n<h2>\u9700\u6c42<\/h2>\n<p>\u4fee\u6539Nacos\u7684\u914d\u7f6e\uff0ccacheManager\u81ea\u52a8\u66f4\u65b0\uff0c\u4f7f\u5f97ttl\u8fd9bean\u80fd\u591f\u5237\u65b0\u3002<\/p>\n<h2>\u5b9e\u73b0\u601d\u8def<\/h2>\n<p>\uff081\uff09\u901a\u8fc7\u4e8b\u4ef6\u76d1\u542c\u673a\u5236\uff0c\u76d1\u542c\u5230Nacos\u914d\u7f6e\u53d8\u66f4\u7684\u52a8\u4f5c\uff1a\u5b9e\u73b0<code>ApplicationListener<\/code>\u63a5\u53e3\uff0c\u5b9e\u73b0\u5176\u65b9\u6cd5<code>onApplicationEvent(NacosConfigReceivedEvent event)<\/code><br \/>\n\uff082\uff09\u5728\u76d1\u542c\u63a5\u53e3\u4e2d\u89e3\u6790nacos\u914d\u7f6e\u5185\u5bb9<br \/>\n\uff083\uff09\u4ece\u914d\u7f6e\u5185\u5bb9\u53d6\u51fattl\u53c2\u6570<br \/>\n\uff084\uff09\u901a\u8fc7Spring\u7684ApplicationContext\u53d6\u51fa<code>DefaultListableBeanFactory<\/code>\uff0c\u4f7f\u7528<code>DefaultListableBeanFactory<\/code>\u79fb\u9664cacheManager\u8fd9\u4e2abean<br \/>\n\uff085\uff09\u52a0\u5165\u65b0\u53c2\u6570ttl\uff0c\u91cd\u65b0\u751f\u6210cacheManager Bean\uff0c\u5e76\u653e\u5165spring\u5bb9\u5668\u4e2d<\/p>\n<pre><code class=\"language-java\">DefaultListableBeanFactory autowireCapableBeanFactory = (DefaultListableBeanFactory)ApplicationContextUtil.getContext().getAutowireCapableBeanFactory();\nautowireCapableBeanFactory.removeBeanDefinition(beanName);\nAbstractBeanDefinition beanDefinition = BeanDefinitionBuilder.genericBeanDefinition(implBeanClz).getBeanDefinition();\nautowireCapableBeanFactory.registerBeanDefinition(beanName, beanDefinition);<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u6545\u4e8b\u80cc\u666f \u4ee5Spring Cache Redis\u4e3a\u4f8b\uff0cNacos\u914d\u7f6e\u4e2d\u5fc3\u914d\u7f6e\u4e86cacheManager\u7684ttl [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[39],"tags":[],"class_list":["post-1977","post","type-post","status-publish","format-standard","hentry","category-spring-framework"],"_links":{"self":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/1977","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/comments?post=1977"}],"version-history":[{"count":0,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/1977\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/media?parent=1977"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/categories?post=1977"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/tags?post=1977"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}