{"id":2147,"date":"2023-04-02T13:21:18","date_gmt":"2023-04-02T05:21:18","guid":{"rendered":"https:\/\/www.appblog.cn\/?p=2147"},"modified":"2023-04-05T19:53:30","modified_gmt":"2023-04-05T11:53:30","slug":"several-implementation-methods-for-automatically-executing-methods-during-springboot-startup","status":"publish","type":"post","link":"https:\/\/www.appblog.cn\/index.php\/2023\/04\/02\/several-implementation-methods-for-automatically-executing-methods-during-springboot-startup\/","title":{"rendered":"SpringBoot\u542f\u52a8\u65f6\u8ba9\u65b9\u6cd5\u81ea\u52a8\u6267\u884c\u7684\u51e0\u79cd\u5b9e\u73b0\u65b9\u5f0f"},"content":{"rendered":"<p>\u5728SpringBoot\u4e2d\u6211\u4eec\u6709\u65f6\u5019\u9700\u8981\u8ba9\u9879\u76ee\u5728\u542f\u52a8\u65f6\u63d0\u524d\u52a0\u8f7d\u76f8\u5e94\u7684\u6570\u636e\u6216\u8005\u6267\u884c\u67d0\u4e2a\u65b9\u6cd5\uff0c\u90a3\u4e48\u5b9e\u73b0\u63d0\u524d\u52a0\u8f7d\u7684\u65b9\u5f0f\u6709\u54ea\u4e9b\u5462\uff1f<\/p>\n<h3>\u5b9e\u73b0ServletContextAware\u63a5\u53e3\u5e76\u91cd\u5199\u5176setServletContext\u65b9\u6cd5<\/h3>\n<p><!-- more --><\/p>\n<pre><code class=\"language-java\">@Component\npublic class TestStarted implements ServletContextAware {\n    \/**\n     * \u5728\u586b\u5145\u666e\u901abean\u5c5e\u6027\u4e4b\u540e\u4f46\u5728\u521d\u59cb\u5316\u4e4b\u524d\u8c03\u7528\n     * \u7c7b\u4f3c\u4e8einitializingbean\u7684afterpropertiesset\u6216\u81ea\u5b9a\u4e49init\u65b9\u6cd5\u7684\u56de\u8c03\n     *\n     *\/\n    @Override\n    public void setServletContext(ServletContext servletContext) {\n        System.out.println(&quot;setServletContext\u65b9\u6cd5&quot;);\n    }\n}<\/code><\/pre>\n<p>\u6ce8\u610f\uff1a\u8be5\u65b9\u6cd5\u4f1a\u5728\u586b\u5145\u5b8c\u666e\u901aBean\u7684\u5c5e\u6027\uff0c\u4f46\u662f\u8fd8\u6ca1\u6709\u8fdb\u884cBean\u7684\u521d\u59cb\u5316\u4e4b\u524d\u6267\u884c<\/p>\n<h3>\u5b9e\u73b0ServletContextListener\u63a5\u53e3<\/h3>\n<pre><code class=\"language-java\">\/**\n * \u5728\u521d\u59cb\u5316Web\u5e94\u7528\u7a0b\u5e8f\u4e2d\u7684\u4efb\u4f55\u8fc7\u6ee4\u5668\u6216Servlet\u4e4b\u524d\uff0c\u5c06\u901a\u77e5\u6240\u6709servletContextListener\u4e0a\u4e0b\u6587\u521d\u59cb\u5316\n *\/\n@Override\npublic void contextInitialized(ServletContextEvent sce) {\n    \/\/ServletContext servletContext = sce.getServletContext();\n    System.out.println(&quot;\u6267\u884ccontextInitialized\u65b9\u6cd5&quot;);\n}<\/code><\/pre>\n<h3>@PostConstruct\u6ce8\u89e3\u6216\u8005\u9759\u6001\u4ee3\u7801\u5757<\/h3>\n<p>\u5c06\u8981\u6267\u884c\u7684\u65b9\u6cd5\u6240\u5728\u7684\u7c7b\u4ea4\u4e2aSpring\u5bb9\u5668\u626b\u63cf(@Component)\uff0c\u5e76\u4e14\u5728\u8981\u6267\u884c\u7684\u65b9\u6cd5\u4e0a\u6dfb\u52a0@PostConstruct\u6ce8\u89e3\u6216\u8005\u9759\u6001\u4ee3\u7801\u5757\u6267\u884c<\/p>\n<pre><code class=\"language-java\">@Component\npublic class Test2 {\n    \/\/\u9759\u6001\u4ee3\u7801\u5757\u4f1a\u5728\u4f9d\u8d56\u6ce8\u5165\u540e\u81ea\u52a8\u6267\u884c\uff0c\u5e76\u4f18\u5148\u6267\u884c\n    static {\n        System.out.println(&quot;---static--&quot;);\n    }\n\n    \/**\n     * @Postcontruct\u5728\u4f9d\u8d56\u6ce8\u5165\u5b8c\u6210\u540e\u81ea\u52a8\u8c03\u7528\n     *\/\n    @PostConstruct\n    public static void haha() {\n        System.out.println(&quot;@Postcontruct\u5728\u4f9d\u8d56\u6ce8\u5165\u5b8c\u6210\u540e\u81ea\u52a8\u8c03\u7528&quot;);\n    }\n}<\/code><\/pre>\n<h3>\u5b9e\u73b0ApplicationRunner\u63a5\u53e3<\/h3>\n<pre><code class=\"language-java\">\/**\n * \u7528\u4e8e\u6307\u793abean\u5305\u542b\u5728SpringApplication\u4e2d\u65f6\u5e94\u8fd0\u884c\u7684\u63a5\u53e3\u3002\u53ef\u4ee5\u5b9a\u4e49\u591a\u4e2aapplicationrunner bean\n * \u5728\u540c\u4e00\u5e94\u7528\u7a0b\u5e8f\u4e0a\u4e0b\u6587\u4e2d\uff0c\u53ef\u4ee5\u4f7f\u7528\u6709\u5e8f\u63a5\u53e3\u6216@order\u6ce8\u91ca\u5bf9\u5176\u8fdb\u884c\u6392\u5e8f\u3002\n *\/\n@Override\npublic void run(ApplicationArguments args) throws Exception {\n    System.out.println(&quot;ApplicationRunner\u7684run\u65b9\u6cd5&quot;);\n}<\/code><\/pre>\n<h3>\u5b9e\u73b0CommandLineRunner\u63a5\u53e3<\/h3>\n<pre><code class=\"language-java\">\/**\n * \u7528\u4e8e\u6307\u793abean\u5305\u542b\u5728SpringApplication\u4e2d\u65f6\u5e94\u8fd0\u884c\u7684\u63a5\u53e3\u3002\u53ef\u4ee5\u5728\u540c\u4e00\u5e94\u7528\u7a0b\u5e8f\u4e0a\u4e0b\u6587\u4e2d\u5b9a\u4e49\u591a\u4e2aCommandLineRunner bean\uff0c\u5e76\u4e14\u53ef\u4ee5\u4f7f\u7528\u6709\u5e8f\u63a5\u53e3\u6216`@order`\u6ce8\u91ca\u5bf9\u5176\u8fdb\u884c\u6392\u5e8f\n * \u5982\u679c\u9700\u8981\u8bbf\u95eeApplicationArguments\u800c\u4e0d\u662f\u539f\u59cb\u5b57\u7b26\u4e32\u6570\u7ec4\uff0c\u8bf7\u8003\u8651\u4f7f\u7528ApplicationRunner\n *\/\n@Override\npublic void run(String... ) throws Exception {\n    System.out.println(&quot;CommandLineRunner\u7684run\u65b9\u6cd5&quot;);\n}<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u5728SpringBoot\u4e2d\u6211\u4eec\u6709\u65f6\u5019\u9700\u8981\u8ba9\u9879\u76ee\u5728\u542f\u52a8\u65f6\u63d0\u524d\u52a0\u8f7d\u76f8\u5e94\u7684\u6570\u636e\u6216\u8005\u6267\u884c\u67d0\u4e2a\u65b9\u6cd5\uff0c\u90a3\u4e48\u5b9e\u73b0\u63d0\u524d\u52a0\u8f7d\u7684\u65b9\u5f0f [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[41],"tags":[],"class_list":["post-2147","post","type-post","status-publish","format-standard","hentry","category-spring-boot"],"_links":{"self":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/2147","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=2147"}],"version-history":[{"count":0,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/posts\/2147\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/media?parent=2147"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/categories?post=2147"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.appblog.cn\/index.php\/wp-json\/wp\/v2\/tags?post=2147"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}