{"id":78,"date":"2024-05-28T17:53:09","date_gmt":"2024-05-28T09:53:09","guid":{"rendered":"https:\/\/www.tqazy.com\/?p=78"},"modified":"2024-05-31T12:52:01","modified_gmt":"2024-05-31T04:52:01","slug":"03-bean%e7%9a%84%e5%ae%9a%e4%b9%89%e4%b8%8e%e7%94%9f%e5%91%bd%e5%91%a8%e6%9c%9f%e7%ae%a1%e7%90%86","status":"publish","type":"post","link":"https:\/\/www.tqazy.com\/?p=78","title":{"rendered":"03. Bean\u7684\u5b9a\u4e49\u4e0e\u751f\u547d\u5468\u671f\u7ba1\u7406"},"content":{"rendered":"<h1>Bean\u7684\u5b9a\u4e49\u4e0e\u751f\u547d\u5468\u671f\u7ba1\u7406<\/h1>\n<blockquote>\n<p>\u5b66\u4e60\u76ee\u6807\uff1a<\/p>\n<ul>\n<li>\u5b66\u4e60\u5982\u4f55\u4f7f\u7528 XML \u914d\u7f6e\u3001\u6ce8\u89e3\uff08\u5982<a href=\"https:\/\/www.tqazy.com\/?p=103\">@Component<\/a>, <a href=\"https:\/\/www.tqazy.com\/?p=96\">@Autowired<\/a>, <a href=\"https:\/\/www.tqazy.com\/?p=554\">@Value<\/a>\u7b49\uff09\u4ee5\u53caJava\u914d\u7f6e\u7c7b\u6765\u5b9a\u4e49Bean\u548c\u7ba1\u7406\u4f9d\u8d56\u5173\u7cfb\u3002<\/li>\n<li>\u7406\u89e3Spring\u5bb9\u5668\u7684\u5de5\u4f5c\u539f\u7406\uff0c\u5305\u62ecBean\u7684\u751f\u547d\u5468\u671f\u7ba1\u7406\uff0c\u5982Bean\u7684\u521d\u59cb\u5316\u3001\u9500\u6bc1\u56de\u8c03\u65b9\u6cd5\u7b49\u3002<\/li>\n<\/ul>\n<\/blockquote>\n<h2>\u4e00\u3001Bean\u7684\u5b9a\u4e49\u4e0e\u7ba1\u7406<\/h2>\n<h3>1.1 \u4ec0\u4e48\u662fBean\uff1f<\/h3>\n<p>Bean\u662fSpring\u7ba1\u7406\u7684Java\u5bf9\u8c61\u3002<\/p>\n<p>\u6bd4\u5982 \u670d\u52a1\u201c\u7c7b\u201d\u3001\u6570\u636e\u8bbf\u95ee\u5bf9\u8c61(DAO)\u3001\u63a7\u5236\u5668\u7b49\uff0c\u5b83\u4eec\u7531Spring\u6846\u67b6\u81ea\u52a8\u5b9e\u4f8b\u5316\u3001\u88c5\u914d\uff08\u5373\u6ce8\u5165\u4f9d\u8d56\uff09\u548c\u7ba1\u7406\u5176\u751f\u547d\u5468\u671f\u3002<\/p>\n<p>\u901a\u8fc7\u4f9d\u8d56\u6ce8\u5165\uff08DI\uff09\u548c\u9762\u5411\u5207\u9762\u7f16\u7a0b\uff08AOP\uff09\u7b49\u673a\u5236\uff0cSpring\u8ba9\u8fd9\u4e9bBean\u80fd\u591f\u8f7b\u677e\u5730\u534f\u540c\u5de5\u4f5c\uff0c\u964d\u4f4e\u4e86\u7ec4\u4ef6\u4e4b\u95f4\u7684\u8026\u5408\u5ea6\uff0c\u63d0\u5347\u4e86\u4ee3\u7801\u7684\u53ef\u6d4b\u8bd5\u6027\u548c\u53ef\u7ef4\u62a4\u6027\u3002<\/p>\n<p>\u5728Spring\u6846\u67b6\u4e2d\uff0c\u5b9a\u4e49\u548c\u7ba1\u7406Bean\u53ca\u5176\u4f9d\u8d56\u5173\u7cfb\u53ef\u4ee5\u901a\u8fc7\u4e09\u79cd\u4e3b\u8981\u65b9\u5f0f\u5b9e\u73b0\uff1a<\/p>\n<ul>\n<li>XML\u914d\u7f6e<\/li>\n<li>\u6ce8\u89e3\u914d\u7f6e<\/li>\n<li>Java\u914d\u7f6e\u7c7b<\/li>\n<\/ul>\n<h3>1.2 XML \u914d\u7f6e<\/h3>\n<h4>1.2.1 \u4e13\u4e1a\u8bb2\u89e3<\/h4>\n<p>\u5728Spring\u6846\u67b6\u4e2d\uff0cXML\u914d\u7f6e\u662f\u4e00\u79cd\u7ecf\u5178\u7684\u914d\u7f6e\u65b9\u5f0f\uff0c\u7528\u4e8e\u5b9a\u4e49\u5e94\u7528\u7a0b\u5e8f\u7ec4\u4ef6\uff08Bean\uff09\u53ca\u5176\u76f8\u4e92\u4f9d\u8d56\u3002<\/p>\n<p>\u5b83\u901a\u8fc7.xml\u6587\u4ef6\u6765\u63cf\u8ff0Bean\u7684\u5b9e\u4f8b\u5316\u7ec6\u8282\uff0c\u5305\u62ecBean\u7684\u7c7b\u540d\u3001\u5c5e\u6027\u8bbe\u7f6e\u3001\u6784\u9020\u51fd\u6570\u53c2\u6570\u3001\u4f9d\u8d56\u7684\u5176\u4ed6Bean\u7b49\u3002<\/p>\n<p>\u5f00\u53d1\u8005\u901a\u8fc7 <code>&lt;bean&gt;<\/code> \u6807\u7b7e\u5b9a\u4e49\u6bcf\u4e2aBean\uff0c\u5e76\u4f7f\u7528\u5c5e\u6027\u548c\u5b50\u5143\u7d20\u6765\u914d\u7f6eBean\u7684\u5c5e\u6027\u548c\u4f9d\u8d56\u5173\u7cfb\u3002<\/p>\n<p>Spring\u5bb9\u5668\u8d1f\u8d23\u89e3\u6790\u8fd9\u4e9b\u914d\u7f6e\uff0c\u5728\u8fd0\u884c\u65f6\u7ba1\u7406Bean\u7684\u751f\u547d\u5468\u671f\uff0c\u5305\u62ec\u521b\u5efa\u3001\u521d\u59cb\u5316\u3001\u88c5\u914d\u548c\u9500\u6bc1\u3002<\/p>\n<h4>1.2.2 \u901a\u4fd7\u8bb2\u89e3<\/h4>\n<p>\u60f3\u8c61\u4f60\u6b63\u5728\u4e3a\u4e00\u4e2a\u5927\u578b\u665a\u5bb4\u505a\u51c6\u5907\uff0cXML\u914d\u7f6e\u5c31\u50cf\u662f\u665a\u5bb4\u7684\u8be6\u7ec6\u83dc\u5355\u548c\u91c7\u8d2d\u8ba1\u5212\u3002\u6bcf\u4e00\u9053\u83dc\uff08Bean\uff09\u90fd\u88ab\u6e05\u695a\u5730\u5217\u51fa\uff0c\u5305\u62ec\u9700\u8981\u7684\u98df\u6750\uff08\u5c5e\u6027\uff09\u548c\u5176\u4ed6\u83dc\u54c1\u7684\u642d\u914d\uff08\u4f9d\u8d56\uff09\u3002\u4f60\u628a\u8fd9\u5f20\u83dc\u5355\u4ea4\u7ed9\u53a8\u623f\u7ecf\u7406\uff08Spring\u5bb9\u5668\uff09\uff0c\u5b83\u8d1f\u8d23\u6309\u7167\u83dc\u5355\u4e0a\u7684\u8bf4\u660e\u51c6\u5907\u98df\u6750\u3001\u7ec4\u5408\u83dc\u54c1\uff0c\u786e\u4fdd\u6bcf\u9053\u83dc\u5728\u4e0a\u684c\u524d\u90fd\u51c6\u5907\u59a5\u5f53\uff0c\u800c\u4e14\u5bb4\u4f1a\u7ed3\u675f\u540e\u8fd8\u4f1a\u6e05\u7406\u53a8\u623f\u3002<\/p>\n<h4>1.2.3 \u5f00\u53d1\u5b9e\u9645\u573a\u666f\u4e3e\u4f8b<\/h4>\n<p>\u5047\u8bbe\u6211\u4eec\u8981\u6784\u5efa\u4e00\u4e2a\u7b80\u5355\u7684\u7535\u5b50\u5546\u52a1\u5e94\u7528\uff0c\u5176\u4e2d\u6709\u4e00\u4e2a <code>ProductService<\/code> \u9700\u8981\u4e0e <code>ProductDAO<\/code> \u4ea4\u4e92\u6765\u5904\u7406\u5546\u54c1\u4fe1\u606f\u3002<\/p>\n<p>XML\u914d\u7f6e\u793a\u4f8b\uff1a<\/p>\n<pre><code class=\"language-xml\">&lt;beans xmlns=&quot;http:\/\/www.springframework.org\/schema\/beans&quot;\n       xmlns:xsi=&quot;http:\/\/www.w3.org\/2001\/XMLSchema-instance&quot;\n       xsi:schemaLocation=&quot;http:\/\/www.springframework.org\/schema\/beans\n       http:\/\/www.springframework.org\/schema\/beans\/spring-beans.xsd&quot;&gt;\n\n    &lt;!-- \u5b9a\u4e49ProductDAO Bean --&gt;\n    &lt;bean id=&quot;productDAO&quot; class=&quot;com.example.ProductDAO&quot;\/&gt;\n\n    &lt;!-- \u5b9a\u4e49ProductService Bean\uff0c\u5e76\u6ce8\u5165ProductDAO\u7684\u4f9d\u8d56 --&gt;\n    &lt;bean id=&quot;productService&quot; class=&quot;com.example.ProductService&quot;&gt;\n        &lt;property name=&quot;productDAO&quot; ref=&quot;productDAO&quot;\/&gt;\n    &lt;\/bean&gt;\n&lt;\/beans&gt;<\/code><\/pre>\n<p>\u5728\u8fd9\u4e2a\u573a\u666f\u4e2d\uff0c<code>ProductService<\/code> \u548c <code>ProductDAO<\/code> \u662f\u6211\u4eec\u7684\u4e24\u4e2a\u7ec4\u4ef6\uff08Bean\uff09\uff0c\u901a\u8fc7XML\u914d\u7f6e\uff0c\u6211\u4eec\u544a\u8bc9Spring\u5bb9\u5668\u5982\u4f55\u521b\u5efa\u5b83\u4eec\u4ee5\u53ca\u5b83\u4eec\u4e4b\u95f4\u7684\u4f9d\u8d56\u5173\u7cfb\u3002<\/p>\n<ul>\n<li><code>ProductDAO.java<\/code> \u53ef\u80fd\u662f\u4e00\u4e2a\u63a5\u53e3\u6216\u62bd\u8c61\u7c7b\uff0c\u5b9a\u4e49\u4e86\u4e0e\u6570\u636e\u5e93\u4ea4\u4e92\u7684\u65b9\u6cd5\u3002<\/li>\n<li><code>ProductService.java<\/code> \u5b9e\u73b0\u4e1a\u52a1\u903b\u8f91\uff0c\u9700\u8981\u4f9d\u8d56ProductDAO\u6765\u6267\u884c\u6570\u636e\u5e93\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n<p>\u901a\u8fc7\u4e0a\u8ff0XML\u914d\u7f6e\uff0cSpring\u5bb9\u5668\u4f1a\u5728\u5e94\u7528\u542f\u52a8\u65f6\u81ea\u52a8\u521b\u5efa <code>ProductDAO<\/code> \u548c <code>ProductService<\/code> \u7684\u5b9e\u4f8b\uff0c\u5e76\u5c06 <code>ProductDAO<\/code> \u7684\u5b9e\u4f8b\u6ce8\u5165\u5230 <code>ProductService<\/code> \u4e2d\uff0c\u5b9e\u73b0\u4e86\u4f9d\u8d56\u7684\u81ea\u52a8\u7ba1\u7406\uff0c\u7b80\u5316\u4e86\u4ee3\u7801\u7684\u7f16\u5199\u548c\u7ef4\u62a4\u3002<\/p>\n<h4>1.2.4 \u7b80\u6613\u4ee3\u7801\u6f14\u793a<\/h4>\n<p>\u521b\u5efa\u4e00\u4e2a\u4f7f\u7528Spring\u6846\u67b6\u901a\u8fc7XML\u914d\u7f6eBean\u7684\u6700\u5c0f\u9879\u76ee\uff0c\u6211\u4eec\u5c06\u9075\u5faa\u4ee5\u4e0b\u57fa\u672c\u6b65\u9aa4\uff1a<\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/oss.tqazy.com\/wordpress\/autoFile\/2024\/05\/20240528094032865.png'><img class=\"lazyload lazyload-style-6\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/oss.tqazy.com\/wordpress\/autoFile\/2024\/05\/20240528094032865.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\u9879\u76ee\u7ed3\u6784\u56fe\" \/><\/div><\/p>\n<p>(\u9879\u76ee\u7ed3\u6784\u56fe)<\/p>\n<p><strong>\u6b65\u9aa4 1: \u521b\u5efaMaven\u9879\u76ee<\/strong><\/p>\n<p>\u9996\u5148\uff0c\u786e\u4fdd\u4f60\u6709Maven\u73af\u5883\u5b89\u88c5\uff0c\u5e76\u4f7f\u7528IDE\uff08\u5982IntelliJ IDEA\u6216Eclipse\uff09\u521b\u5efa\u4e00\u4e2a\u65b0\u7684Maven\u9879\u76ee\u3002<\/p>\n<p><strong>\u6b65\u9aa4 2: \u6dfb\u52a0Spring\u4f9d\u8d56<\/strong><\/p>\n<p>\u7f16\u8f91pom.xml\u6587\u4ef6\uff0c\u6dfb\u52a0Spring\u6846\u67b6\u7684\u6838\u5fc3\u4f9d\u8d56\uff1a<\/p>\n<pre><code class=\"language-xml\">&lt;dependencies&gt;\n    &lt;dependency&gt;\n        &lt;groupId&gt;org.springframework&lt;\/groupId&gt;\n        &lt;artifactId&gt;spring-context&lt;\/artifactId&gt;\n        &lt;version&gt;5.3.23&lt;\/version&gt;\n    &lt;\/dependency&gt;\n&lt;\/dependencies&gt;<\/code><\/pre>\n<p><strong>\u6b65\u9aa4 3: \u521b\u5efaJava\u7c7b<\/strong><\/p>\n<p>\u63a5\u4e0b\u6765\uff0c\u521b\u5efa\u4e24\u4e2a\u7b80\u5355\u7684Java\u7c7b\uff0c\u4e00\u4e2a\u662f\u670d\u52a1\u63a5\u53e3\uff0c\u4e00\u4e2a\u662f\u5b83\u7684\u5b9e\u73b0\u7c7b\u3002<\/p>\n<p><code>GreetingService.java<\/code>\uff08\u670d\u52a1\u63a5\u53e3\uff09:<\/p>\n<pre><code class=\"language-java\">package com.tqazy.service;\n\npublic interface GreetingService {\n    void sayHello();\n}<\/code><\/pre>\n<p><code>SimpleGreetingService.java<\/code>\uff08\u670d\u52a1\u5b9e\u73b0\u7c7b\uff09:<\/p>\n<pre><code class=\"language-java\">package com.tqazy.service;\n\npublic class SimpleGreetingService implements GreetingService {\n    @Override\n    public void sayHello() {\n        System.out.println(&quot;Hello, Spring!&quot;);\n    }\n}<\/code><\/pre>\n<p><strong>\u6b65\u9aa4 4: \u521b\u5efaSpring\u914d\u7f6e\u6587\u4ef6<\/strong><\/p>\n<p>\u5728 <code>src\/main\/resources<\/code> \u76ee\u5f55\u4e0b\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a <code>applicationContext.xml<\/code> \u7684\u6587\u4ef6\uff0c\u7528\u6765\u914d\u7f6eBean\uff1a<\/p>\n<pre><code class=\"language-xml\">&lt;?xml version=&quot;1.0&quot; encoding=&quot;UTF-8&quot;?&gt;\n&lt;beans xmlns=&quot;http:\/\/www.springframework.org\/schema\/beans&quot;\n       xmlns:xsi=&quot;http:\/\/www.w3.org\/2001\/XMLSchema-instance&quot;\n       xsi:schemaLocation=&quot;http:\/\/www.springframework.org\/schema\/beans\n       http:\/\/www.springframework.org\/schema\/beans\/spring-beans.xsd&quot;&gt;\n\n    &lt;bean id=&quot;greetingService&quot; class=&quot;com.tqazy.service.SimpleGreetingService&quot;\/&gt;\n\n&lt;\/beans&gt;<\/code><\/pre>\n<p><strong>\u6b65\u9aa4 5: \u4e3b\u7a0b\u5e8f\u542f\u52a8Spring\u5bb9\u5668\u5e76\u4f7f\u7528Bean<\/strong><\/p>\n<p>\u6700\u540e\uff0c\u521b\u5efa\u4e00\u4e2a\u4e3b\u7c7b\u6765\u542f\u52a8Spring\u5bb9\u5668\uff0c\u5e76\u4ece\u5bb9\u5668\u4e2d\u83b7\u53d6\u5e76\u4f7f\u7528Bean\u3002<\/p>\n<p><code>App.java<\/code><\/p>\n<pre><code class=\"language-java\">package com.tqazy;\n\nimport com.tqazy.service.GreetingService;\nimport org.springframework.context.ApplicationContext;\nimport org.springframework.context.support.ClassPathXmlApplicationContext;\n\npublic class App {\n    public static void main(String[] args) {\n        ApplicationContext context = new ClassPathXmlApplicationContext(&quot;applicationContext.xml&quot;);\n        GreetingService greetingService = context.getBean(&quot;greetingService&quot;, GreetingService.class);\n        greetingService.sayHello();\n    }\n}<\/code><\/pre>\n<p><strong>\u6b65\u9aa4 6: \u8fd0\u884c\u9879\u76ee<\/strong><\/p>\n<p>\u73b0\u5728\uff0c\u8fd0\u884c <code>App.java<\/code> \u7684 <code>main<\/code> \u65b9\u6cd5\u3002\u4f60\u4f1a\u770b\u5230\u8f93\u51fa <code>\u201cHello, Spring!\u201d<\/code> \uff0c\u8868\u660eSpring\u6210\u529f\u521b\u5efa\u4e86Bean\u5e76\u8c03\u7528\u4e86\u5b83\u7684\u65b9\u6cd5\u3002<\/p>\n<p>\u6ce8\u610f\uff1a\u8fd9\u91cc\u7684 <code>com.tqazy<\/code> \u5e94\u66ff\u6362\u4e3a\u4f60\u5b9e\u9645\u7684\u5305\u540d\u3002\u6b64\u5916\uff0c\u6839\u636e\u4f60\u7684IDE\u548cMaven\u914d\u7f6e\uff0c\u53ef\u80fd\u9700\u8981\u7a0d\u4f5c\u8c03\u6574\uff0c\u6bd4\u5982\u786e\u4fdd\u8d44\u6e90\u6587\u4ef6\u88ab\u6b63\u786e\u8bc6\u522b\u548c\u52a0\u8f7d\u3002<\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/oss.tqazy.com\/wordpress\/autoFile\/2024\/05\/20240528094220889.png'><img class=\"lazyload lazyload-style-6\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/oss.tqazy.com\/wordpress\/autoFile\/2024\/05\/20240528094220889.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\u8fd0\u884c\u7ed3\u679c\" \/><\/div><\/p>\n<h3>1.3 \u6ce8\u89e3\u914d\u7f6e<\/h3>\n<h4>1.3.1 \u4e13\u4e1a\u8bb2\u89e3<\/h4>\n<p>\u6ce8\u89e3\u914d\u7f6e\u662fSpring\u6846\u67b6\u63d0\u4f9b\u7684\u4e00\u79cd\u73b0\u4ee3\u3001\u7b80\u6d01\u7684\u914d\u7f6e\u65b9\u5f0f\uff0c\u7528\u4e8e\u58f0\u660e\u5f0f\u5730\u5b9a\u4e49Bean\u548c\u7ba1\u7406\u5b83\u4eec\u7684\u4f9d\u8d56\u5173\u7cfb\u3002<\/p>\n<p>\u4e3b\u8981\u6d89\u53ca\u7684\u6ce8\u89e3\u5305\u62ec\uff1a<\/p>\n<blockquote>\n<p>\u60f3\u4e86\u89e3\u8fd93\u4e2a\u6ce8\u89e3\u7684\u5177\u4f53\u4fe1\u606f\uff0c\u53ef\u4ee5\u70b9\u51fb\u4e0b\u9762\u6ce8\u89e3\u540d\u79f0\u6216\u8005\u5728\u672c\u7ad9\u641c\u7d22\uff0c\u6709\u8be6\u7ec6\u6587\u7ae0\u4ecb\u7ecd<\/p>\n<\/blockquote>\n<ul>\n<li>\n<p><a href=\"https:\/\/www.tqazy.com\/?p=103\"><code>@Component<\/code><\/a>\uff1a\u8fd9\u662f\u4e00\u4e2a\u901a\u7528\u7684\u6ce8\u89e3\uff0c\u7528\u4e8e\u6807\u8bb0\u4e00\u4e2aJava\u7c7b\u4e3aSpring\u4e2d\u7684Bean\u7ec4\u4ef6\u3002Spring\u901a\u8fc7\u626b\u63cf\u7279\u5b9a\u5305\u8def\u5f84\u4e0b\u7684\u6240\u6709\u5e26\u6709\u6b64\u6ce8\u89e3\u7684\u7c7b\uff0c\u81ea\u52a8\u5c06\u5b83\u4eec\u6ce8\u518c\u4e3aBean\u3002<\/p>\n<\/li>\n<li>\n<p><a href=\"https:\/\/www.tqazy.com\/?p=96\"><code>@Autowired<\/code><\/a>\uff1a\u6b64\u6ce8\u89e3\u5b9e\u73b0\u4f9d\u8d56\u6ce8\u5165\uff0c\u5141\u8bb8Spring\u81ea\u52a8\u5c06\u5339\u914d\u7684Bean\u6ce8\u5165\u5230\u9700\u8981\u5b83\u4eec\u7684\u5b57\u6bb5\u6216\u65b9\u6cd5\u4e2d\u3002Spring\u901a\u8fc7\u7c7b\u578b\u5339\u914d\u6765\u51b3\u5b9a\u54ea\u4e2aBean\u5e94\u8be5\u88ab\u6ce8\u5165\u3002<\/p>\n<\/li>\n<li>\n<p><a href=\"https:\/\/www.tqazy.com\/?p=554\"><code>@Value<\/code><\/a>\uff1a\u7528\u4e8e\u6ce8\u5165\u57fa\u672c\u7c7b\u578b\u548cString\u7c7b\u578b\u7684\u503c\uff0c\u53ef\u4ee5\u4ece\u5c5e\u6027\u6587\u4ef6\u6216\u5176\u4ed6\u914d\u7f6e\u6e90\u4e2d\u8bfb\u53d6\u8fd9\u4e9b\u503c\u3002<\/p>\n<\/li>\n<\/ul>\n<h4>1.3.2 \u901a\u4fd7\u8bb2\u89e3<\/h4>\n<p>\u60f3\u8c61\u4f60\u6b63\u5728\u7ec4\u7ec7\u4e00\u573a\u6d3e\u5bf9\uff0c\u6bcf\u4e2a\u4eba\u6216\u7269\u54c1\uff08Bean\uff09\u90fd\u6709\u7279\u5b9a\u7684\u89d2\u8272\uff08\u670d\u52a1\uff09\u3002<\/p>\n<ul>\n<li>\n<p><code>@Component<\/code> \u5c31\u50cf\u662f\u7ed9\u6bcf\u4e2a\u4eba\u6216\u7269\u54c1\u53d1\u653e\u7684\u6807\u724c\uff0c\u6807\u660e\u4ed6\u4eec\u5c5e\u4e8e\u8fd9\u573a\u6d3e\u5bf9\u7684\u5de5\u4f5c\u4eba\u5458\u6216\u7269\u54c1\uff0c\u6bd4\u5982\u53a8\u5e08\u3001\u670d\u52a1\u5458\u3001DJ\u3001\u6d3e\u5bf9\u6307\u5b9a\u70e4\u7bb1\u7b49\u3002Spring\u901a\u8fc7\u67e5\u770b\u8c01\u4f69\u6234\u4e86\u6807\u724c\uff0c\u5c31\u77e5\u9053\u4ed6\u4eec\u662f\u6d3e\u5bf9\u7684\u4e00\u90e8\u5206\uff0c\u5e94\u8be5\u8fdb\u5165\u4f1a\u573a\u3002<\/p>\n<\/li>\n<li>\n<p><code>@Autowired<\/code> \u597d\u6bd4\u662f\u81ea\u52a8\u5339\u914d\u4efb\u52a1\u7684\u80fd\u529b\u3002\u4e00\u65e6\u786e\u5b9a\u4e86\u67d0\u4e2a\u4eba\uff08\u5982\u53a8\u5e08\uff09\u7684\u89d2\u8272\uff0cSpring\u5c31\u4f1a\u81ea\u52a8\u627e\u5230\u4ed6\u9700\u8981\u7684\u5de5\u5177\uff08\u5982\u70e4\u7bb1\u3001\u5200\u5177\u3001\u670d\u52a1\u5458\uff0c\u5373\u5176\u4ed6Bean\uff09\uff0c\u800c\u4e0d\u7528\u4ed6\u81ea\u5df1\u53bb\u5bfb\u627e\u3002\u53a8\u5e08\u53ea\u9700\u8981\u4e13\u6ce8\u4e8e\u70f9\u996a\uff0c\u65e0\u9700\u62c5\u5fc3\u5de5\u5177\u4ece\u54ea\u91cc\u6765\u3002<\/p>\n<\/li>\n<li>\n<p><code>@Value<\/code> \u5219\u662f\u7ed9\u8fd9\u4e9b\u5de5\u4f5c\u4eba\u5458\u5206\u914d\u5177\u4f53\u7684\u4efb\u52a1\u6307\u4ee4\u3002\u6bd4\u5982\u7ed9DJ\u7684\u6307\u4ee4\u53ef\u80fd\u662f&quot;\u64ad\u653e\u6447\u6eda\u97f3\u4e50&quot;\uff0c\u8fd9\u4e2a\u6307\u4ee4\u53ef\u4ee5\u76f4\u63a5\u4ece\u6d3e\u5bf9\u89c4\u5212\u4e66\uff08\u914d\u7f6e\u6587\u4ef6\uff09\u4e2d\u8bfb\u53d6\u3002<\/p>\n<\/li>\n<\/ul>\n<h4>1.3.3 \u5f00\u53d1\u5b9e\u9645\u573a\u666f\u4e3e\u4f8b<\/h4>\n<p>\u5047\u8bbe\u4f60\u6b63\u5728\u5f00\u53d1\u4e00\u4e2a\u7b80\u5355\u7684\u535a\u5ba2\u7cfb\u7edf\uff0c\u5305\u542b\u6587\u7ae0\u7c7b<code>Article<\/code>\u548c\u6587\u7ae0\u670d\u52a1\u7c7b<code>ArticleService<\/code>\u3002<\/p>\n<p>\u6ce8\u89e3\u914d\u7f6e\u793a\u4f8b\uff1a<\/p>\n<pre><code class=\"language-java\">\/\/ \u4f7f\u7528@Component\u6807\u8bb0\u4e3aSpring\u7ba1\u7406\u7684Bean\n@Component\npublic class Article {\n    \/\/ \u6587\u7ae0\u5185\u5bb9\n    private String content;\n    \/\/ \u7701\u7565getter\u548csetter\n}\n\n@Service\npublic class ArticleService {\n    \/\/ \u4f7f\u7528@Autowired\u81ea\u52a8\u6ce8\u5165Article\u7684\u4f9d\u8d56\n    @Autowired\n    private Article article;\n\n    \/\/ \u4e1a\u52a1\u903b\u8f91\u65b9\u6cd5\n    public void publishArticle() {\n        \/\/ \u7701\u7565\u5177\u4f53\u5b9e\u73b0\n    }\n\n    \/\/ \u4ece\u914d\u7f6e\u6587\u4ef6\u4e2d\u6ce8\u5165\u503c\n    @Value(&quot;${article.author}&quot;)\n    private String author;\n}<\/code><\/pre>\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c<code>Article<\/code> \u548c <code>ArticleService<\/code> \u901a\u8fc7 <code>@Component<\/code> \u548c <code>@Service<\/code> \u6ce8\u89e3\u6210\u4e3a\u4e86Spring\u7ba1\u7406\u7684Bean\u3002<code>ArticleService<\/code> \u7c7b\u4e2d\u7684 <code>article<\/code> \u5b57\u6bb5\u901a\u8fc7 <code>@Autowired<\/code> \u81ea\u52a8\u6ce8\u5165\u4e86 <code>Article<\/code> \u7684\u5b9e\u4f8b\uff0c\u800c <code>author<\/code> \u5b57\u6bb5\u5219\u901a\u8fc7 <code>@Value<\/code> \u4ece\u5916\u90e8\u914d\u7f6e\uff08\u5982 <code>application.properties<\/code> \uff09\u4e2d\u8bfb\u53d6\u4e86\u535a\u5ba2\u4f5c\u8005\u7684\u540d\u5b57\u3002<\/p>\n<h4>1.3.4 \u7b80\u6613\u4ee3\u7801\u6f14\u793a<\/h4>\n<p><strong>\u6b65\u9aa4 1: \u521b\u5efaMaven\u9879\u76ee<\/strong><\/p>\n<p>1\u3001\u6253\u5f00IDE\uff08\u5982IntelliJ IDEA\u6216Eclipse\uff09\uff0c\u521b\u5efa\u4e00\u4e2a\u65b0\u7684Maven\u9879\u76ee\u3002<\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/oss.tqazy.com\/wordpress\/autoFile\/2024\/05\/20240528094314625.jpg'><img class=\"lazyload lazyload-style-6\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/oss.tqazy.com\/wordpress\/autoFile\/2024\/05\/20240528094314625.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\u9879\u76ee\u7ed3\u6784\u56fe\" \/><\/div><\/p>\n<p>2\u3001\u5728\u9879\u76ee\u7684pom.xml\u4e2d\u6dfb\u52a0Spring\u6846\u67b6\u7684\u4f9d\u8d56\uff1a<\/p>\n<pre><code class=\"language-xml\">&lt;dependencies&gt;\n    &lt;!-- Spring Core and Context --&gt;\n    &lt;dependency&gt;\n        &lt;groupId&gt;org.springframework&lt;\/groupId&gt;\n        &lt;artifactId&gt;spring-context&lt;\/artifactId&gt;\n        &lt;version&gt;5.3.23&lt;\/version&gt;\n    &lt;\/dependency&gt;\n    &lt;!-- Spring AOP for @Configurable support --&gt;\n    &lt;dependency&gt;\n        &lt;groupId&gt;org.springframework&lt;\/groupId&gt;\n        &lt;artifactId&gt;spring-aop&lt;\/artifactId&gt;\n        &lt;version&gt;5.3.23&lt;\/version&gt;\n    &lt;\/dependency&gt;\n&lt;\/dependencies&gt;<\/code><\/pre>\n<p><strong>\u6b65\u9aa4 2: \u521b\u5efaArticle\u548cArticleService\u7c7b<\/strong><\/p>\n<p><code>Article.java<\/code><\/p>\n<pre><code class=\"language-java\">package com.tqazy;\n\nimport org.springframework.stereotype.Component;\n\n@Component\npublic class Article {\n    private String content;\n\n    public Article() {\n        this.content = &quot;\u8fd9\u662f\u6587\u7ae0\u7c7b\u7684\u6784\u9020\u5668\u6dfb\u52a0\u7684\u6d4b\u8bd5\u5185\u5bb9\u3002&quot;;\n    }\n\n    public String getContent() {\n        return content;\n    }\n\n    public void setContent(String content) {\n        this.content = content;\n    }\n}<\/code><\/pre>\n<p><code>ArticleService.java<\/code><\/p>\n<pre><code class=\"language-java\">package com.tqazy;\n\nimport org.springframework.beans.factory.annotation.Autowired;\nimport org.springframework.stereotype.Service;\nimport org.springframework.beans.factory.annotation.Value;\n\n@Service\npublic class ArticleService {\n    private final Article article;\n    private String author;\n\n    @Autowired\n    public ArticleService(Article article) {\n        this.article = article;\n    }\n\n    @Value(&quot;${article.author}&quot;)\n    public void setAuthor(String author) {\n        this.author = author;\n    }\n\n    public void publishArticle() {\n        System.out.println(&quot;\u6587\u7ae0\u4f5c\u8005\uff1a&quot; + author + &quot;\uff0c\u6587\u7ae0\u5185\u5bb9\uff1a&quot; + article.getContent());\n    }\n}<\/code><\/pre>\n<p><strong>\u6b65\u9aa4 3: \u521b\u5efaSpring\u914d\u7f6e\u7c7b<\/strong><\/p>\n<p>\u56e0\u4e3a\u6ca1\u6709\u4f7f\u7528Spring Boot\uff0c\u6211\u4eec\u9700\u8981\u4e00\u4e2a\u914d\u7f6e\u7c7b\u6765\u4ee3\u66ff\u81ea\u52a8\u914d\u7f6e\u7684\u529f\u80fd\u3002<\/p>\n<p>\u521b\u5efa<code>SpringConfig.java<\/code>:<\/p>\n<pre><code class=\"language-java\">package com.tqazy;\n\nimport org.springframework.context.annotation.Bean;\nimport org.springframework.context.annotation.ComponentScan;\nimport org.springframework.context.annotation.Configuration;\nimport org.springframework.context.annotation.PropertySource;\n\n@Configuration\n@ComponentScan(basePackages = &quot;com.tqazy&quot;)\n@PropertySource(&quot;classpath:application.properties&quot;)\npublic class SpringConfig {\n\n    \/\/ \u5982\u679c\u9700\u8981\uff0c\u53ef\u4ee5\u5728\u8fd9\u91cc\u901a\u8fc7@Bean\u624b\u52a8\u5b9a\u4e49Bean\uff0c\u4f46\u56e0\u4e3a\u6211\u4eec\u4f7f\u7528@Component\u7b49\u6ce8\u89e3\uff0c\u6240\u4ee5\u8fd9\u91cc\u53ef\u4ee5\u7701\u7565\n}<\/code><\/pre>\n<p><strong>\u6b65\u9aa4 4: \u6dfb\u52a0\u5c5e\u6027\u6587\u4ef6<\/strong><\/p>\n<p>\u5728 <code>src\/main\/resources<\/code> \u76ee\u5f55\u4e0b\u521b\u5efa <code>application.properties<\/code>\u3002<\/p>\n<pre><code class=\"language-properties\">article.author=tqazy<\/code><\/pre>\n<p><strong>\u6b65\u9aa4 5: \u4e3b\u51fd\u6570\u53ca\u8fd0\u884c<\/strong><\/p>\n<p>\u521b\u5efa\u4e3b\u51fd\u6570\u4ee5\u624b\u52a8\u542f\u52a8Spring\u4e0a\u4e0b\u6587\uff0c\u5e76\u4ece\u4e2d\u83b7\u53d6Bean\u8fdb\u884c\u6d4b\u8bd5\u3002<\/p>\n<p>\u521b\u5efa<code>App.java<\/code>:<\/p>\n<pre><code class=\"language-java\">package com.tqazy;\n\nimport org.springframework.context.ApplicationContext;\nimport org.springframework.context.annotation.AnnotationConfigApplicationContext;\n\npublic class App {\n    public static void main(String[] args) {\n        ApplicationContext context = new AnnotationConfigApplicationContext(SpringConfig.class);\n        ArticleService articleService = context.getBean(ArticleService.class);\n        articleService.publishArticle();\n    }\n}<\/code><\/pre>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/oss.tqazy.com\/wordpress\/autoFile\/2024\/05\/20240528095012442.jpg'><img class=\"lazyload lazyload-style-6\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/oss.tqazy.com\/wordpress\/autoFile\/2024\/05\/20240528095012442.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\u8fd0\u884c\u7ed3\u679c\" \/><\/div><\/p>\n<p>\u8fd9\u4e2a\u9879\u76ee\u4e2d\uff0c\u4e0d\u7528\u5173\u6ce8\u914d\u7f6e\u7c7b\u4ec0\u4e48\u7684\uff0c\u53ea\u9700\u8981\u5173\u6ce83\u4e2a\u6ce8\u89e3\u7684\u4f7f\u7528\u3002<\/p>\n<h3>1.4 Java\u914d\u7f6e\u7c7b<\/h3>\n<h4>1.4.1 \u4e13\u4e1a\u8bb2\u89e3<\/h4>\n<p>Java\u914d\u7f6e\u7c7b\u662fSpring\u6846\u67b6\u63d0\u4f9b\u7684\u53e6\u4e00\u79cd\u914d\u7f6e\u65b9\u5f0f\uff0c\u5b83\u4f7f\u7528Java\u7c7b\u800c\u975eXML\u6587\u4ef6\u6765\u5b9a\u4e49\u548c\u7ba1\u7406Bean\u53ca\u5176\u4f9d\u8d56\u5173\u7cfb\u3002<\/p>\n<p>\u8fd9\u79cd\u65b9\u5f0f\u66f4\u52a0\u7075\u6d3b\uff0c\u652f\u6301\u590d\u6742\u7684\u903b\u8f91\u548c\u6761\u4ef6\u914d\u7f6e\uff0c\u5e76\u4e14\u4e0eJava\u751f\u6001\u7cfb\u7edf\u66f4\u52a0\u81ea\u7136\u5730\u96c6\u6210\u3002<\/p>\n<p>Java\u914d\u7f6e\u7c7b\u901a\u8fc7\u4f7f\u7528 <code>@Configuration<\/code> \u3001<code>@Bean<\/code> \u7b49\u6ce8\u89e3\u6765\u5b9e\u73b0\uff1a<\/p>\n<ul>\n<li><code>@Configuration<\/code> \u6ce8\u89e3\u6807\u8bb0\u4e00\u4e2a\u7c7b\u4f5c\u4e3a\u914d\u7f6e\u7c7b\uff0c\u8be5\u7c7b\u53ef\u4ee5\u5305\u542b\u4e00\u4e2a\u6216\u591a\u4e2a <code>@Bean<\/code> \u65b9\u6cd5\u3002<\/li>\n<li><code>@Bean<\/code> \u6ce8\u89e3\u5728\u4e00\u4e2a\u65b9\u6cd5\u4e0a\uff0c\u8868\u793a\u8be5\u65b9\u6cd5\u8fd4\u56de\u7684\u5bf9\u8c61\u5e94\u8be5\u88ab\u6ce8\u518c\u4e3a\u4e00\u4e2aSpring\u7ba1\u7406\u7684Bean\uff0c\u53ef\u4ee5\u6307\u5b9aBean\u7684\u540d\u79f0\u3001\u521d\u59cb\u5316\u65b9\u6cd5\u3001\u9500\u6bc1\u65b9\u6cd5\u7b49\u3002<\/li>\n<\/ul>\n<h4>1.4.2 \u901a\u4fd7\u8bb2\u89e3<\/h4>\n<p>\u60f3\u8c61\u4f60\u6b63\u5728\u89c4\u5212\u4e00\u4e2a\u751f\u65e5\u6d3e\u5bf9\uff0c\u800cJava\u914d\u7f6e\u7c7b\u5c31\u50cf\u662f\u6d3e\u5bf9\u7b56\u5212\u5e08\uff0c\u5b83\u901a\u8fc7\u4e00\u7cfb\u5217\u6307\u4ee4\uff08\u65b9\u6cd5\uff09\u6765\u544a\u8bc9\u7cfb\u7edf\uff08\u53a8\u623f\u3001\u88c5\u9970\u56e2\u961f\u7b49\uff09\u9700\u8981\u51c6\u5907\u4ec0\u4e48\uff08Bean\uff09\u4ee5\u53ca\u5982\u4f55\u51c6\u5907\uff08\u4f9d\u8d56\u5173\u7cfb\uff09\u3002<\/p>\n<p><code>@Configuration<\/code> \u5c31\u50cf\u662f\u7ed9\u6d3e\u5bf9\u7b56\u5212\u5e08\u7684\u8ba4\u8bc1\uff0c\u8868\u660e\u8fd9\u4e2a\u4eba\uff08\u7c7b\uff09\u6709\u6743\u5236\u5b9a\u6d3e\u5bf9\u7684\u6240\u6709\u5b89\u6392\u3002<br \/>\n<code>@Bean<\/code> \u65b9\u6cd5\u5c31\u50cf\u662f\u7b56\u5212\u5e08\u8bf4\uff1a\u201c\u6211\u4eec\u9700\u8981\u4e00\u4e2a\u751f\u65e5\u86cb\u7cd5\uff0c\u505a\u6cd5\u662f\u8fd9\u6837\u7684&#8230;\u201d\uff0c\u6bcf\u5f53\u8fd9\u6837\u7684\u65b9\u6cd5\u88ab\u6267\u884c\uff0c\u5c31\u76f8\u5f53\u4e8e\u5236\u4f5c\u4e86\u4e00\u4efd\u7279\u522b\u7684\u7269\u54c1\uff08Bean\uff09\uff0c\u5e76\u4e14\u7cfb\u7edf\u4f1a\u8bb0\u4f4f\u8fd9\u4efd\u7269\u54c1\u7684\u5236\u4f5c\u65b9\u6cd5\u548c\u6210\u54c1\uff0c\u4f9b\u540e\u7eed\u4f7f\u7528\u3002<\/p>\n<h4>1.4.3 \u5f00\u53d1\u5b9e\u9645\u573a\u666f\u4e3e\u4f8b<\/h4>\n<p>\u5047\u8bbe\u4f60\u6b63\u5728\u5f00\u53d1\u4e00\u4e2a\u7528\u6237\u8ba4\u8bc1\u6a21\u5757\uff0c\u9700\u8981\u914d\u7f6e\u7528\u6237\u670d\u52a1\u5c42\u7c7b <code>UserService<\/code> \u548c\u7528\u6237\u6301\u4e45\u5c42\u7c7b <code>UserRepository<\/code>\u3002<\/p>\n<pre><code class=\"language-java\">\/\/ Java\u914d\u7f6e\u7c7b\u793a\u4f8b\nimport com.example.repository.UserRepository;\nimport com.example.service.UserService;\nimport org.springframework.context.annotation.Bean;\nimport org.springframework.context.annotation.Configuration;\n\n@Configuration\npublic class AppConfig {\n\n    \/\/ \u6a21\u62df\u6570\u636e\u5e93\u8fde\u63a5\u914d\u7f6e\uff0c\u5b9e\u9645\u4e2d\u53ef\u80fd\u6765\u81ea\u5916\u90e8\u914d\u7f6e\u6e90\n    private final String databaseUrl = &quot;jdbc:mysql:\/\/localhost:3306\/mydb&quot;;\n\n    \/\/ \u5b9a\u4e49UserRepository Bean\n    @Bean\n    public UserRepository userRepository() {\n        \/\/ \u5047\u8bbe\u8fd9\u91cc\u662f\u521b\u5efa\u5e76\u521d\u59cb\u5316UserRepository\u5b9e\u4f8b\u7684\u903b\u8f91\uff0c\u53ef\u80fd\u5305\u62ec\u6570\u636e\u5e93\u8fde\u63a5\u7b49\n        return new UserRepository(databaseUrl);\n    }\n\n    \/\/ \u5b9a\u4e49UserService Bean\uff0c\u5e76\u6ce8\u5165UserRepository\u4f9d\u8d56\n    @Bean\n    public UserService userService(UserRepository userRepository) {\n        \/\/ \u521b\u5efaUserService\u5b9e\u4f8b\u65f6\uff0c\u81ea\u52a8\u6ce8\u5165UserRepository\n        return new UserService(userRepository);\n    }\n}<\/code><\/pre>\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c<code>AppConfig<\/code> \u7c7b\u88ab <code>@Configuration<\/code> \u6ce8\u89e3\u6807\u8bb0\u4e3a\u914d\u7f6e\u7c7b\u3002<\/p>\n<p><code>userRepository()<\/code> \u548c <code>userService()<\/code> \u65b9\u6cd5\u5206\u522b\u5b9a\u4e49\u4e86\u4e24\u4e2aBean\uff0c\u5176\u4e2d <code>userService()<\/code> \u65b9\u6cd5\u7684\u53c2\u6570 <code>userRepository<\/code> \u7531Spring\u81ea\u52a8\u6ce8\u5165\uff0c\u4f53\u73b0\u4e86\u4f9d\u8d56\u5173\u7cfb\u7684\u7ba1\u7406\u3002<\/p>\n<p>\u8fd9\u79cd\u65b9\u5f0f\u4f7f\u5f97\u914d\u7f6e\u66f4\u52a0\u7c7b\u578b\u5b89\u5168\uff0c\u6613\u4e8e\u7406\u89e3\u548c\u7ef4\u62a4\uff0c\u5c24\u5176\u662f\u5f53\u9879\u76ee\u590d\u6742\u5ea6\u4e0a\u5347\u65f6\uff0cJava\u914d\u7f6e\u7684\u4f18\u52bf\u66f4\u4e3a\u660e\u663e\u3002<\/p>\n<h4>1.4.4 \u7b80\u6613\u4ee3\u7801\u6f14\u793a<\/h4>\n<p><strong>\u6b65\u9aa41\uff1a\u521b\u5efaMaven\u9879\u76ee\u5e76\u914d\u7f6eSpring<\/strong><\/p>\n<p>1\u3001\u521b\u5efaMaven\u9879\u76ee:<\/p>\n<p>\u4f7f\u7528IDE\uff08\u5982IntelliJ IDEA\u6216Eclipse\uff09\u521b\u5efa\u4e00\u4e2a\u65b0\u7684Maven\u9879\u76ee\u3002<\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/oss.tqazy.com\/wordpress\/autoFile\/2024\/05\/20240528095045302.png'><img class=\"lazyload lazyload-style-6\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/oss.tqazy.com\/wordpress\/autoFile\/2024\/05\/20240528095045302.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\u9879\u76ee\u7ed3\u6784\u56fe\" \/><\/div><\/p>\n<p>2\u3001\u914d\u7f6epom.xml\uff1a<\/p>\n<p>\u5728pom.xml\u4e2d\u6dfb\u52a0Spring\u6838\u5fc3\u5e93\u7684\u4f9d\u8d56\uff1a<\/p>\n<pre><code class=\"language-xml\">&lt;dependencies&gt;\n    &lt;dependency&gt;\n        &lt;groupId&gt;org.springframework&lt;\/groupId&gt;\n        &lt;artifactId&gt;spring-context&lt;\/artifactId&gt;\n        &lt;version&gt;5.3.23&lt;\/version&gt;\n    &lt;\/dependency&gt;\n    &lt;dependency&gt;\n        &lt;groupId&gt;org.springframework&lt;\/groupId&gt;\n        &lt;artifactId&gt;spring-core&lt;\/artifactId&gt;\n        &lt;version&gt;5.3.23&lt;\/version&gt;\n    &lt;\/dependency&gt;\n&lt;\/dependencies&gt;<\/code><\/pre>\n<p><strong>\u6b65\u9aa42\uff1a\u521b\u5efaUser\u6a21\u578b\u3001\u6301\u4e45\u5c42\uff08\u7b80\u6613\u5b9e\u73b0\uff09\u548c\u4e1a\u52a1\u670d\u52a1\u5c42\u53ca\u5b9e\u73b0<\/strong><\/p>\n<p>1\u3001<code>User.java<\/code>\uff08\u7528\u6237\u5b9e\u4f53\uff09:<\/p>\n<pre><code class=\"language-java\">package com.tqazy.model;\n\npublic class User {\n    private String username;\n    private String password;\n\n    public User() {\n    }\n\n    public User(String username, String password) {\n        this.username = username;\n        this.password = password;\n    }\n    \/\/ get\u3001set\u65b9\u6cd5\u7701\u7565\n}<\/code><\/pre>\n<p>2\u3001<code>UserRepository.java<\/code>\uff08\u7528\u6237\u4ed3\u5e93\u63a5\u53e3\uff09\uff1a<\/p>\n<pre><code class=\"language-java\">package com.tqazy.repository;\n\nimport com.tqazy.model.User;\n\npublic interface UserRepository {\n    User findByUsername(String username);\n}<\/code><\/pre>\n<p>3\u3001<code>InMemoryUserRepository.java<\/code>\uff08\u5185\u5b58\u4e2d\u7684\u7528\u6237\u4ed3\u5e93\u5b9e\u73b0\uff0c\u4ec5\u7528\u4e8e\u6f14\u793a\uff09\uff1a<\/p>\n<pre><code class=\"language-java\">package com.tqazy.repository;\n\nimport com.tqazy.model.User;\n\npublic class InMemoryUserRepository implements UserRepository {\n\n    public InMemoryUserRepository(String databaseUrl) {\n        System.out.println(&quot;databaseUrl=&quot; + databaseUrl);\n    }\n\n    @Override\n    public User findByUsername(String username) {\n        \/\/ \u7b80\u5316\u793a\u4f8b\uff0c\u5b9e\u9645\u5e94\u4ece\u6570\u636e\u5e93\u67e5\u8be2\n        if (&quot;testUser&quot;.equals(username)) {\n            return new User(&quot;testUser&quot;, &quot;password&quot;);\n        }\n        return null;\n    }\n}<\/code><\/pre>\n<p>4\u3001<code>UserService.java<\/code>\uff08\u7528\u6237\u670d\u52a1\u63a5\u53e3\uff09\uff1a<\/p>\n<pre><code class=\"language-java\">package com.tqazy.service;\n\nimport com.tqazy.model.User;\n\npublic interface UserService {\n    User authenticate(String username, String password);\n}<\/code><\/pre>\n<p>5\u3001<code>UserServiceImpl.java<\/code>\uff08\u7528\u6237\u670d\u52a1\u5b9e\u73b0\uff09\uff1a<\/p>\n<pre><code class=\"language-java\">package com.tqazy.service;\n\nimport com.tqazy.model.User;\nimport com.tqazy.repository.UserRepository;\n\npublic class UserServiceImpl implements UserService {\n    private final UserRepository userRepository;\n\n    public UserServiceImpl(UserRepository userRepository) {\n        this.userRepository = userRepository;\n    }\n\n    @Override\n    public User authenticate(String username, String password) {\n        User user = userRepository.findByUsername(username);\n        if (user != null &amp;&amp; user.getPassword().equals(password)) {\n            return user;\n        }\n        return null;\n    }\n}<\/code><\/pre>\n<p><strong>\u6b65\u9aa43\uff1a\u521b\u5efaSpring\u914d\u7f6e\u7c7b<\/strong><\/p>\n<p><code>AppConfig.java<\/code><\/p>\n<pre><code class=\"language-java\">package com.tqazy.config;\n\nimport com.tqazy.repository.InMemoryUserRepository;\nimport com.tqazy.repository.UserRepository;\nimport com.tqazy.service.UserService;\nimport com.tqazy.service.UserServiceImpl;\nimport org.springframework.context.annotation.Bean;\nimport org.springframework.context.annotation.Configuration;\n\n@Configuration\npublic class AppConfig {\n\n    \/\/ \u6a21\u62df\u4ece\u5916\u90e8\u914d\u7f6e\u83b7\u53d6\u7684\u6570\u636e\u5e93\u8fde\u63a5\u4fe1\u606f\uff0c\u5b9e\u9645\u9879\u76ee\u4e2d\u4f7f\u7528@Value\u8bfb\u53d6\u914d\u7f6e\u6587\u4ef6\n    private static final String DATABASE_URL = &quot;jdbc:mysql:\/\/localhost:3306\/mydb&quot;;\n\n    \/\/ \u793a\u4f8b\u4e2d\u4f7f\u7528\u5185\u5b58\u4e2d\u7684\u7528\u6237\u4ed3\u5e93\uff0c\u4f46\u914d\u7f6e\u65b9\u5f0f\u5c55\u793a\u4e86\u5982\u4f55\u5411\u6784\u9020\u51fd\u6570\u4f20\u53c2\n    @Bean\n    public UserRepository userRepository() {\n        \/\/ \u5b9e\u9645\u9879\u76ee\u4e2d\uff0c\u60a8\u53ef\u80fd\u4f1a\u521b\u5efaDataSource\u5e76\u4f20\u9012\u7ed9\u771f\u6b63\u7684Repository\u5b9e\u73b0\n        return new InMemoryUserRepository(DATABASE_URL);\n    }\n\n    \/\/ \u5b9a\u4e49UserService Bean\uff0c\u4f7f\u7528\u6784\u9020\u5668\u6ce8\u5165UserRepository\n    @Bean\n    public UserService userService(UserRepository userRepository) {\n        return new UserServiceImpl(userRepository);\n    }\n}<\/code><\/pre>\n<p><strong>\u6b65\u9aa44\uff1a\u7f16\u5199\u4e3b\u51fd\u6570<\/strong><\/p>\n<p><code>App.java<\/code><\/p>\n<pre><code class=\"language-java\">package com.tqazy;\n\nimport com.tqazy.config.AppConfig;\nimport com.tqazy.model.User;\nimport com.tqazy.service.UserService;\nimport org.springframework.context.ApplicationContext;\nimport org.springframework.context.annotation.AnnotationConfigApplicationContext;\n\npublic class App {\n    public static void main(String[] args) {\n        ApplicationContext context = new AnnotationConfigApplicationContext(AppConfig.class);\n        UserService userService = context.getBean(UserService.class);\n\n        User authenticatedUser = userService.authenticate(&quot;testUser&quot;, &quot;password&quot;);\n        if (authenticatedUser != null) {\n            System.out.println(&quot;\u7528\u6237\u8ba4\u8bc1\u6210\u529f: &quot; + authenticatedUser.getUsername());\n        } else {\n            System.out.println(&quot;\u8ba4\u8bc1\u5931\u8d25\u3002&quot;);\n        }\n    }\n}<\/code><\/pre>\n<p><strong>\u6b65\u9aa45\uff1a\u542f\u52a8\u5e76\u8fd0\u884cApp\u7c7b\u7684main\u65b9\u6cd5<\/strong><\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/oss.tqazy.com\/wordpress\/autoFile\/2024\/05\/20240528095114842.jpg'><img class=\"lazyload lazyload-style-6\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/oss.tqazy.com\/wordpress\/autoFile\/2024\/05\/20240528095114842.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\u8fd0\u884c\u7ed3\u679c\" \/><\/div><\/p>\n<h2>\u4e8c\u3001Spring\u5bb9\u5668\u7684\u5de5\u4f5c\u539f\u7406<\/h2>\n<h3>2.1 \u4e13\u4e1a\u8bb2\u89e3<\/h3>\n<p>Spring\u5bb9\u5668\u662fSpring\u6846\u67b6\u7684\u6838\u5fc3\uff0c\u8d1f\u8d23\u7ba1\u7406\u548c\u7ec4\u7ec7Bean\u7684\u751f\u547d\u5468\u671f\u3002<\/p>\n<p>\u5b83\u901a\u8fc7\u8bfb\u53d6\u914d\u7f6e\uff08XML\u3001\u6ce8\u89e3\u3001Java\u914d\u7f6e\u7c7b\uff09\u6765\u521b\u5efaBean\u5b9e\u4f8b\uff0c\u7ba1\u7406\u5b83\u4eec\u4e4b\u95f4\u7684\u4f9d\u8d56\u5173\u7cfb\uff0c\u5e76\u63d0\u4f9b\u5fc5\u8981\u7684\u670d\u52a1\uff0c\u5982\u8d44\u6e90\u7ba1\u7406\u3001\u4e8b\u52a1\u7ba1\u7406\u7b49\u3002<\/p>\n<p>Spring\u5bb9\u5668\u7684\u5de5\u4f5c\u6d41\u7a0b\u5927\u81f4\u5206\u4e3aBean\u5b9a\u4e49\u7684\u8f7d\u5165\u3001Bean\u5b9e\u4f8b\u5316\u3001\u4f9d\u8d56\u6ce8\u5165\u3001\u521d\u59cb\u5316\u3001\u4f7f\u7528\u3001\u9500\u6bc1\u51e0\u4e2a\u9636\u6bb5\u3002<\/p>\n<p><strong>Bean\u7684\u751f\u547d\u5468\u671f\u7ba1\u7406\u5305\u62ec\uff1a<\/strong><\/p>\n<ul>\n<li><strong>Bean\u5b9a\u4e49\u8f7d\u5165\uff1a<\/strong> Spring\u5bb9\u5668\u4ece\u914d\u7f6e\u6e90\uff08\u5982XML\u6587\u4ef6\u3001\u6ce8\u89e3\u3001Java\u914d\u7f6e\u7c7b\uff09\u8bfb\u53d6Bean\u5b9a\u4e49\u4fe1\u606f\u3002<\/li>\n<li><strong>Bean\u5b9e\u4f8b\u5316\uff1a<\/strong> \u6839\u636eBean\u5b9a\u4e49\uff0cSpring\u4f7f\u7528\u53cd\u5c04\u673a\u5236\u521b\u5efaBean\u5b9e\u4f8b\u3002<\/li>\n<li><strong>\u4f9d\u8d56\u6ce8\u5165\uff1a<\/strong> \u5bb9\u5668\u904d\u5386Bean\u5b9a\u4e49\u4e2d\u7684\u4f9d\u8d56\u5173\u7cfb\uff0c\u901a\u8fc7\u5c5e\u6027\u586b\u5145\u6216\u6784\u9020\u5668\u6ce8\u5165\u7b49\u65b9\u5f0f\uff0c\u5c06\u5176\u4ed6Bean\u5b9e\u4f8b\u6ce8\u5165\u5230\u5f53\u524dBean\u4e2d\u3002<\/li>\n<li><strong>\u521d\u59cb\u5316\uff1a<\/strong> Bean\u5b9e\u4f8b\u521b\u5efa\u540e\uff0c\u4f1a\u8c03\u7528\u81ea\u5b9a\u4e49\u7684\u521d\u59cb\u5316\u65b9\u6cd5\uff08\u901a\u8fc7 <code>@PostConstruct<\/code> \u6ce8\u89e3\u6216 <code>InitializingBean<\/code> \u63a5\u53e3\u6307\u5b9a\uff09\uff0c\u8fdb\u884c\u989d\u5916\u7684\u521d\u59cb\u5316\u64cd\u4f5c\u3002<\/li>\n<li><strong>\u4f7f\u7528\uff1a<\/strong> Bean\u5df2\u51c6\u5907\u597d\u5e76\u53ef\u88ab\u5e94\u7528\u7a0b\u5e8f\u4ee3\u7801\u4f7f\u7528\u3002<\/li>\n<li><strong>\u9500\u6bc1\u56de\u8c03\uff1a<\/strong> \u5f53\u5bb9\u5668\u5173\u95ed\u6216Bean\u4e0d\u518d\u9700\u8981\u65f6\uff0c\u4f1a\u8c03\u7528\u9884\u5b9a\u4e49\u7684\u9500\u6bc1\u65b9\u6cd5\uff08\u901a\u8fc7    <code>@PreDestroy<\/code> \u6ce8\u89e3\u6216 <code>DisposableBean<\/code> \u63a5\u53e3\u6307\u5b9a\uff09\uff0c\u6267\u884c\u6e05\u7406\u64cd\u4f5c\u3002<\/li>\n<\/ul>\n<h3>2.2 \u901a\u4fd7\u8bb2\u89e3<\/h3>\n<p>\u60f3\u8c61Spring\u5bb9\u5668\u662f\u4e00\u4e2a\u9ad8\u7ea7\u7ba1\u5bb6\uff0c\u8d1f\u8d23\u7167\u987e\u4f60\u5bb6\u91cc\uff08\u5e94\u7528\uff09\u7684\u5404\u79cd\u7269\u54c1\uff08Bean\uff09\u3002<\/p>\n<ul>\n<li><strong>Bean\u5b9a\u4e49\u8f7d\u5165\uff1a<\/strong> \u5c31\u50cf\u7ba1\u5bb6\u5148\u67e5\u770b\u6e05\u5355\uff08\u914d\u7f6e\u6587\u4ef6\uff09\uff0c\u4e86\u89e3\u5bb6\u91cc\u9700\u8981\u54ea\u4e9b\u7269\u54c1\uff0c\u5b83\u4eec\u653e\u5728\u54ea\u91cc\uff0c\u6709\u4ec0\u4e48\u7279\u6027\u3002<\/li>\n<li><strong>Bean\u5b9e\u4f8b\u5316\uff1a<\/strong> \u63a5\u7740\uff0c\u7ba1\u5bb6\u6839\u636e\u6e05\u5355\u8d2d\u7f6e\u7269\u54c1\uff0c\u6446\u653e\u5230\u5bf9\u5e94\u4f4d\u7f6e\uff08\u5185\u5b58\u4e2d\uff09\u3002<\/li>\n<li><strong>\u4f9d\u8d56\u6ce8\u5165\uff1a<\/strong> \u5982\u679c\u67d0\u4e2a\u7269\u54c1\u9700\u8981\u642d\u914d\u5176\u4ed6\u7269\u54c1\u4f7f\u7528\uff08\u4f9d\u8d56\u5173\u7cfb\uff09\uff0c\u7ba1\u5bb6\u4f1a\u81ea\u52a8\u5c06\u5b83\u4eec\u653e\u5728\u4e00\u8d77\u3002\u6bd4\u5982\u5c06\u7535\u6c60\u653e\u5728\u624b\u7535\u7b52\u4e2d\u3002<\/li>\n<li><strong>\u521d\u59cb\u5316\uff1a<\/strong> \u5bf9\u4e8e\u4e00\u4e9b\u9700\u8981\u7ec4\u88c5\u6216\u7279\u6b8a\u51c6\u5907\u7684\u7269\u54c1\uff0c\u7ba1\u5bb6\u8fd8\u4f1a\u8fdb\u884c\u989d\u5916\u7684\u5b89\u88c5\u548c\u8c03\u8bd5\u3002<\/li>\n<li><strong>\u4f7f\u7528\uff1a<\/strong> \u4e00\u5207\u5c31\u7eea\u540e\uff0c\u5bb6\u5ead\u6210\u5458\uff08\u5e94\u7528\u4ee3\u7801\uff09\u5c31\u53ef\u4ee5\u76f4\u63a5\u4f7f\u7528\u8fd9\u4e9b\u7269\u54c1\u4e86\u3002<\/li>\n<li><strong>\u9500\u6bc1\u56de\u8c03\uff1a<\/strong> \u5f53\u67d0\u7269\u54c1\u4e0d\u518d\u9700\u8981\u6216\u642c\u5bb6\uff08\u5e94\u7528\u5173\u95ed\uff09\u65f6\uff0c\u7ba1\u5bb6\u4f1a\u8d1f\u8d23\u59a5\u5584\u5904\u7406\u8fd9\u4e9b\u7269\u54c1\uff0c\u6bd4\u5982\u62c6\u5378\u3001\u56de\u6536\u3002<\/li>\n<\/ul>\n<h3>2.3 \u5f00\u53d1\u5b9e\u9645\u573a\u666f\u4e3e\u4f8b<\/h3>\n<p>\u5047\u8bbe\u6709\u4e00\u4e2a\u7b80\u5355\u7684Web\u5e94\u7528\uff0c\u5305\u542b\u4e00\u4e2a <code>UserService<\/code> \u7c7b\uff0c\u5b83\u4f9d\u8d56\u4e8e <code>UserRepository<\/code> \u6765\u64cd\u4f5c\u6570\u636e\u5e93\u3002<\/p>\n<pre><code class=\"language-java\">@Service\npublic class UserService {\n    \/\/ \u4e1a\u52a1\u65b9\u6cd5\uff1a\u6a21\u62df\u4e1a\u52a1\n    public void findUserById(Long id) {\n        System.out.println(&quot;\u627e\u5230\u6839\u636e&quot; + id +&quot;\u627e\u5230\u7528\u6237\u4e86&quot;);\n    }\n\n    \/\/ \u521d\u59cb\u5316\u56de\u8c03\u65b9\u6cd5\n    @PostConstruct\n    public void init() {\n        System.out.println(&quot;UserService \u521d\u59cb\u5316\u5b8c\u6210&quot;);\n    }\n\n    \/\/ \u9500\u6bc1\u56de\u8c03\u65b9\u6cd5\n    @PreDestroy\n    public void destroy() {\n        System.out.println(&quot;UserService \u6b63\u5728\u9500\u6bc1&quot;);\n    }\n}<\/code><\/pre>\n<p>\u5728\u8fd9\u4e2a\u4f8b\u5b50\u4e2d\uff0c<code>UserService<\/code> \u7c7b\u901a\u8fc7\u6784\u9020\u5668\u6ce8\u5165\u7684\u65b9\u5f0f\u4f9d\u8d56\u4e8e <code>UserRepository<\/code> \u3002<\/p>\n<p>\u540c\u65f6\u5b9a\u4e49\u4e86 <code>@PostConstruct<\/code> \u548c <code>@PreDestroy<\/code> \u6ce8\u89e3\u7684\u65b9\u6cd5\uff0c\u5206\u522b\u8868\u793aBean\u7684\u521d\u59cb\u5316\u548c\u9500\u6bc1\u56de\u8c03\u3002<\/p>\n<h3>2.4 \u7b80\u6613\u4ee3\u7801\u6f14\u793a<\/h3>\n<p>\u57fa\u4e8e\u4e0a\u9762\u7684 <code>UserService.java<\/code>\uff0c\u521b\u5efa\u4e00\u4e2a\u7b80\u5355\u7684maven+spring\u7a0b\u5e8f\uff0c\u8c03\u7528 <code>UserService.java<\/code> \u7684 <code>findUserById<\/code> \u65b9\u6cd5\u3002\u8fd0\u884c\u7ed3\u679c\u5982\u4e0b\uff1a<\/p>\n<p>\u4f20\u53c2id\u4e3a1\uff1a<\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/oss.tqazy.com\/wordpress\/autoFile\/2024\/05\/20240528095208648.jpg'><img class=\"lazyload lazyload-style-6\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/oss.tqazy.com\/wordpress\/autoFile\/2024\/05\/20240528095208648.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"\u8fd0\u884c\u7ed3\u679c\" \/><\/div><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Bean\u7684\u5b9a\u4e49\u4e0e\u751f\u547d\u5468\u671f\u7ba1\u7406 \u5b66\u4e60\u76ee\u6807\uff1a \u5b66\u4e60\u5982\u4f55\u4f7f\u7528 XML \u914d\u7f6e\u3001\u6ce8\u89e3\uff08\u5982@Component, @Aut [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[5,7],"class_list":["post-78","post","type-post","status-publish","format-standard","hentry","category-spring_framework","tag-spring","tag-spring-framework"],"yoast_head":"<!-- This site is optimized with the 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Bean\u7684\u5b9a\u4e49\u4e0e\u751f\u547d\u5468\u671f\u7ba1\u7406 | \u9676\u5176\u7684\u4e2a\u4eba\u535a\u5ba2\" \/>\n<meta property=\"og:description\" content=\"Bean\u7684\u5b9a\u4e49\u4e0e\u751f\u547d\u5468\u671f\u7ba1\u7406 \u5b66\u4e60\u76ee\u6807\uff1a \u5b66\u4e60\u5982\u4f55\u4f7f\u7528 XML \u914d\u7f6e\u3001\u6ce8\u89e3\uff08\u5982@Component, @Aut [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.tqazy.com\/?p=78\" \/>\n<meta property=\"og:site_name\" content=\"\u9676\u5176\u7684\u4e2a\u4eba\u535a\u5ba2\" \/>\n<meta property=\"article:published_time\" content=\"2024-05-28T09:53:09+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2024-05-31T04:52:01+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/oss.tqazy.com\/wordpress\/autoFile\/2024\/05\/20240528094032865.png\" \/>\n<meta name=\"author\" content=\"\u9676\u5176\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u4f5c\u8005\" \/>\n\t<meta name=\"twitter:data1\" content=\"\u9676\u5176\" \/>\n\t<meta name=\"twitter:label2\" content=\"\u9884\u8ba1\u9605\u8bfb\u65f6\u95f4\" \/>\n\t<meta name=\"twitter:data2\" content=\"7 \u5206\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.tqazy.com\/?p=78#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.tqazy.com\/?p=78\"},\"author\":{\"name\":\"\u9676\u5176\",\"@id\":\"https:\/\/www.tqazy.com\/#\/schema\/person\/b2e89d56e70f15c261012417c5ef2c4e\"},\"headline\":\"03. 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