{"id":2151,"date":"2023-06-20T17:08:27","date_gmt":"2023-06-20T09:08:27","guid":{"rendered":"https:\/\/xinchewhd.com.cn\/?p=2151"},"modified":"2023-06-20T17:08:27","modified_gmt":"2023-06-20T09:08:27","slug":"demospring%ef%bc%9a%e5%9f%ba%e4%ba%8esetter%e6%96%b9%e6%b3%95%e6%b3%a8%e5%85%a5%e7%9a%84%e5%be%aa%e7%8e%af%e4%be%9d%e8%b5%96%e5%9c%ba%e6%99%af","status":"publish","type":"post","link":"https:\/\/xinchewhd.com.cn\/index.php\/spring\/demospring%ef%bc%9a%e5%9f%ba%e4%ba%8esetter%e6%96%b9%e6%b3%95%e6%b3%a8%e5%85%a5%e7%9a%84%e5%be%aa%e7%8e%af%e4%be%9d%e8%b5%96%e5%9c%ba%e6%99%af\/","title":{"rendered":"Demo|Spring\uff1a\u57fa\u4e8eSetter\u65b9\u6cd5\u6ce8\u5165\u7684\u5faa\u73af\u4f9d\u8d56\u573a\u666f"},"content":{"rendered":"<div class=\"wxsyncmain\">\n<h3><img decoding=\"async\" class=\"rich_pages wxw-img lazyload\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/06\/20230620170651406.jpeg\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" data-ratio=\"0.66625\" data-type=\"jpeg\" data-w=\"800\" \/><noscript><img decoding=\"async\" class=\"rich_pages wxw-img\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/06\/20230620170651406.jpeg\" data-ratio=\"0.66625\" data-type=\"jpeg\" data-w=\"800\" \/><\/noscript><\/h3>\n<ul class=\"list-paddingleft-1\" style=\"list-style-type: square;\">\n<li>\n<h3><span style=\"font-size: 24px;\">Bean\u7684\u5b9e\u4f8b\u5316\u8fc7\u7a0b\u4e2d\u548c\u5faa\u73af\u4f9d\u8d56\u6709\u5173\u7684\u4ee3\u7801<\/span><\/h3>\n<\/li>\n<\/ul>\n<section class=\"code-snippet__fix code-snippet__js\">\n<pre class=\"code-snippet__js\" data-lang=\"javascript\"><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\">\/\/1. \u521b\u5efaBean<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">instanceWrapper = createBeanInstance(beanName, mbd, args);<\/span><\/code><code><span class=\"code-snippet_outer\">\n<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\">\/\/ \u9488\u5bf9\u5faa\u73af\u4f9d\u8d56\u95ee\u9898\u63d0\u524d\u66b4\u9732\u5355\u4f8b\u5de5\u5382\u7c7b<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">\naddSingletonFactory(beanName, () -&gt; getEarlyBeanReference(beanName, mbd, bean));<\/span><\/code><code><span class=\"code-snippet_outer\">\n<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__comment\">\/\/2. \u6ce8\u5165\u5c5e\u6027<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">\npopulateBean(beanName, mbd, instanceWrapper);<\/span><\/code><\/pre>\n<\/section>\n<ul class=\"list-paddingleft-1\" style=\"list-style-type: square;\">\n<li>\n<h3><span style=\"font-size: 24px;\">\u5faa\u73af\u4f9d\u8d56\u7684\u4ee3\u7801\uff1a<\/span><\/h3>\n<\/li>\n<\/ul>\n<section class=\"code-snippet__fix code-snippet__js\">\n<pre class=\"code-snippet__js\" data-lang=\"java\"><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">public<\/span> <span class=\"code-snippet__class\"><span class=\"code-snippet__keyword\">class<\/span> <span class=\"code-snippet__title\">ClassA<\/span> <\/span>{\u00a0 <\/span><\/code><code><span class=\"code-snippet_outer\">\n\u00a0 \u00a0 <span class=\"code-snippet__keyword\">private<\/span> ClassB classB;<\/span><\/code><code><span class=\"code-snippet_outer\">\n\u00a0 <\/span><\/code><code><span class=\"code-snippet_outer\">  <span class=\"code-snippet__meta\">@Autowired<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">\n\u00a0 \u00a0 <span class=\"code-snippet__function\"><span class=\"code-snippet__keyword\">public<\/span> <span class=\"code-snippet__keyword\">void<\/span> <span class=\"code-snippet__title\">setClassB<\/span><span class=\"code-snippet__params\">(ClassB classB)<\/span> <\/span>{<\/span><\/code><code><span class=\"code-snippet_outer\">\n\u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__keyword\">this<\/span>.classB = classB;<\/span><\/code><code><span class=\"code-snippet_outer\">\n\u00a0 \u00a0 }<\/span><\/code><code><span class=\"code-snippet_outer\">\n}<\/span><\/code><code><span class=\"code-snippet_outer\">\n<\/span><\/code><code><span class=\"code-snippet_outer\"><span class=\"code-snippet__keyword\">public<\/span> <span class=\"code-snippet__class\"><span class=\"code-snippet__keyword\">class<\/span> <span class=\"code-snippet__title\">ClassB<\/span> <\/span>{<\/span><\/code><code><span class=\"code-snippet_outer\">\n\u00a0 \u00a0 <span class=\"code-snippet__keyword\">private<\/span> ClassA classA;<\/span><\/code><code><span class=\"code-snippet_outer\">\n\u00a0 <\/span><\/code><code><span class=\"code-snippet_outer\">\n\u00a0 \u00a0 <span class=\"code-snippet__meta\">@Autowired<\/span><\/span><\/code><code><span class=\"code-snippet_outer\">\n\u00a0 \u00a0 <span class=\"code-snippet__function\"><span class=\"code-snippet__keyword\">public<\/span> <span class=\"code-snippet__keyword\">void<\/span> <span class=\"code-snippet__title\">setClassA<\/span><span class=\"code-snippet__params\">(ClassA classA)<\/span> <\/span>{<\/span><\/code><code><span class=\"code-snippet_outer\">\n\u00a0 \u00a0 \u00a0 \u00a0 <span class=\"code-snippet__keyword\">this<\/span>.classA = classA;<\/span><\/code><code><span class=\"code-snippet_outer\">\n\u00a0 \u00a0 }<\/span><\/code><code><span class=\"code-snippet_outer\">\n}<\/span><\/code><\/pre>\n<\/section>\n<ul class=\"list-paddingleft-1\" style=\"list-style-type: square;\">\n<li style=\"font-size: 24px;\">\n<h3><span style=\"font-size: 24px;\">\u56fe2-3\u3000\u57fa\u4e8eSetter\u65b9\u6cd5\u6ce8\u5165\u7684\u5faa\u73af\u4f9d\u8d56\u89e3\u51b3\u6d41\u7a0b<\/span><\/h3>\n<\/li>\n<\/ul>\n<p style=\"text-align: center;\"><img decoding=\"async\" class=\"rich_pages wxw-img lazyload\" data-src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/06\/20230620170653265.jpeg\" src=\"https:\/\/s.nmxc.ltd\/sakurairo_vision\/@2.6\/load_svg\/inload.svg\" onerror=\"imgError(this)\" data-galleryid=\"\" data-ratio=\"0.6527581329561527\" data-s=\"300,640\" data-type=\"jpeg\" data-w=\"1414\" \/><noscript><img decoding=\"async\" class=\"rich_pages wxw-img\" src=\"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/06\/20230620170653265.jpeg\" data-galleryid=\"\" data-ratio=\"0.6527581329561527\" data-s=\"300,640\" data-type=\"jpeg\" data-w=\"1414\" \/><\/noscript><\/p>\n<p>\u73b0\u5728\u5047\u8bbe\u6211\u4eec\u5148\u521d\u59cb\u5316ClassA\u3002ClassA\u9996\u5148\u901a\u8fc7createBeanInstance()\u65b9\u6cd5\u521b\u5efa\u4e86\u5b9e\u4f8b\uff0c\u5e76\u4e14\u5c06\u8fd9\u4e2a\u5b9e\u4f8b<span style=\"background-color: #fff199;\">\u63d0\u524d\u66b4\u9732\u5230\u7b2c\u4e09\u7ea7\u7f13\u5b58<\/span>singletonFactories\u4e2d\u3002\u7136\u540e\uff0cClassA\u5c1d\u8bd5\u901a\u8fc7populateBean()\u65b9\u6cd5\u6ce8\u5165\u5c5e\u6027\uff0c\u53d1\u73b0\u81ea\u5df1\u4f9d\u8d56ClassB\u8fd9\u4e2a\u5c5e\u6027\uff0c\u5c31\u4f1a\u5c1d\u8bd5\u53bb\u83b7\u53d6ClassB\u7684\u5b9e\u4f8b\u3002<\/p>\n<p>\u663e\u7136\uff0c\u8fd9\u65f6\u5019ClassB\u8fd8\u6ca1\u6709\u88ab\u521b\u5efa\uff0c\u6240\u4ee5\u8981\u8d70\u521b\u5efa\u6d41\u7a0b\u3002ClassB\u5728\u521d\u59cb\u5316\u7b2c\u4e00\u6b65\u7684\u65f6\u5019\u53d1\u73b0\u81ea\u5df1\u4f9d\u8d56\u4e86ClassA\uff0c\u5c31\u4f1a\u5c1d\u8bd5\u4ece\u7b2c\u4e00\u7ea7\u7f13\u5b58singletonObjects\u53bb\u83b7\u53d6ClassA\u7684\u5b9e\u4f8b\u3002\u56e0\u4e3aClassA\u8fd9\u65f6\u5019\u8fd8\u6ca1\u6709\u88ab\u521b\u5efa\u5b8c\u6bd5\uff0c\u6240\u4ee5\u5b83\u5728\u7b2c\u4e00\u7ea7\u7f13\u5b58\u548c\u7b2c\u4e8c\u7ea7\u7f13\u5b58\u4e2d\u90fd\u4e0d\u5b58\u5728\u3002\u5f53\u5c1d\u8bd5\u8bbf\u95ee\u7b2c\u4e09\u7ea7\u7f13\u5b58\u65f6\uff0c\u56e0\u4e3aClassA\u5df2\u7ecf\u63d0\u524d\u66b4\u9732\u4e86\uff0c\u6240\u4ee5ClassB\u80fd\u591f\u901a\u8fc7singletonFactories\u62ff\u5230ClassA\u5bf9\u8c61\u5e76\u987a\u5229\u5b8c\u6210\u6240\u6709\u521d\u59cb\u5316\u6d41\u7a0b\u3002<\/p>\n<p>ClassB\u5bf9\u8c61\u521b\u5efa\u5b8c\u6210\u4e4b\u540e\u4f1a\u88ab\u653e\u5230\u7b2c\u4e00\u7ea7\u7f13\u5b58\u4e2d\uff0c\u8fd9\u65f6\u5019ClassA\u5c31\u80fd\u4ece\u7b2c\u4e00\u7ea7\u7f13\u5b58\u4e2d\u83b7\u53d6ClassB\u7684\u5b9e\u4f8b\uff0c\u8fdb\u800c\u5b8c\u6210ClassA\u7684\u6240\u6709\u521d\u59cb\u5316\u6d41\u7a0b\u3002\u8fd9\u6837ClassA\u548cClassB\u90fd\u80fd\u591f\u6210\u529f\u5b8c\u6210\u521b\u5efa\u8fc7\u7a0b\uff0c\u6574\u4e2a\u6d41\u7a0b\u5982\u56fe2-3\u6240\u793a\u3002<\/p>\n<p style=\"display: none;\">\n<blockquote><p>\u672c\u7bc7\u6587\u7ae0\u6765\u6e90\u4e8e\u5fae\u4fe1\u516c\u4f17\u53f7: \u6d77\u76d0\u67b6\u6784\u7b14\u8bb0<\/p><\/blockquote>\n<\/div>\n","raw":"","protected":false},"excerpt":{"rendered":"<p>Bean\u7684\u5b9e\u4f8b\u5316\u8fc7\u7a0b\u4e2d\u548c\u5faa\u73af\u4f9d\u8d56\u6709\u5173\u7684\u4ee3\u7801 \/\/1. \u521b\u5efaBeaninstanceWrapper = createBeanInst &#8230;<\/p>\n","protected":false},"author":1,"featured_media":2148,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"emotion":"","emotion_color":"","title_style":"","license":"","footnotes":""},"categories":[6],"tags":[],"class_list":["post-2151","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-spring"],"post_thumbnail_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/06\/20230620170649114-150x150.jpeg","content_first_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/06\/20230620170651406.jpeg","post_medium_image_300":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/06\/20230620170649114-300x128.jpeg","post_thumbnail_image_624":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/06\/20230620170649114.jpeg","post_frist_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/06\/20230620170651406.jpeg","post_medium_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/06\/20230620170649114-300x128.jpeg","post_large_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/06\/20230620170649114.jpeg","post_full_image":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/06\/20230620170649114.jpeg","post_all_images":[{"imagesurl":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/06\/20230620170651406.jpeg","id":"image0"},{"imagesurl":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/06\/20230620170651406.jpeg","id":"image1"},{"imagesurl":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/06\/20230620170653265.jpeg","id":"image2"},{"imagesurl":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/06\/20230620170653265.jpeg","id":"image3"}],"videoAdId":"","listAd":"0","listAdId":"","listAdEvery":6,"total_comments":0,"category_name":"Spring","post_date":"2023-06-20","like_count":"0","praiseWord":"\u9f13\u52b1","copyright_state":"","excitationAd":"0","rewardedVideoAdId":"","detailAdId":"","detailAd":"0","enterpriseMinapp":"0","audios":[],"postImageUrl":"https:\/\/wp-moto-1258805347.cos.ap-shanghai.myqcloud.com\/2023\/05\/20230519082947553.jpg","avatarurls":[],"related_posts":null,"pageviews":412,"next_post_id":2158,"next_post_title":"Spring\uff1a\u4ece\u4e09\u7ea7\u7f13\u5b58\u7ed3\u6784\u4e2d\u83b7\u53d6\u5355\u4f8bBean","previous_post_id":1987,"previous_post_title":"Java\uff1a\u5165\u95e8\u77e5\u8bc6\u68b3\u7406","_links":{"self":[{"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/posts\/2151","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/comments?post=2151"}],"version-history":[{"count":0,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/posts\/2151\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/media\/2148"}],"wp:attachment":[{"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/media?parent=2151"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/categories?post=2151"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xinchewhd.com.cn\/index.php\/wp-json\/wp\/v2\/tags?post=2151"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}