{"id":293,"date":"2022-04-07T16:13:37","date_gmt":"2022-04-07T08:13:37","guid":{"rendered":"https:\/\/blog.lijiajia.top\/?p=293"},"modified":"2026-06-19T21:39:55","modified_gmt":"2026-06-19T13:39:55","slug":"spring%e6%a1%86%e6%9e%b6%e5%ad%a6%e4%b9%a0%ef%bc%9aioc%e6%93%8d%e4%bd%9cbean%e7%ae%a1%e7%90%86-%e5%9f%ba%e4%ba%8e%e6%b3%a8%e8%a7%a3%e6%96%b9%e5%bc%8f%e5%b1%9e%e6%80%a7%e6%b3%a8%e5%85%a5%e5%8d%81","status":"publish","type":"post","link":"https:\/\/blog.ttwow.top\/?p=293","title":{"rendered":"Spring5\u6846\u67b6\u5b66\u4e60\uff1aIOC\u64cd\u4f5cBean\u7ba1\u7406-\u57fa\u4e8e\u6ce8\u89e3\u65b9\u5f0f(\u5c5e\u6027\u6ce8\u5165)(\u5341\u4e00)"},"content":{"rendered":"<h2>\u57fa\u4e8e\u6ce8\u89e3\u65b9\u5f0f\u5b9e\u73b0\u5c5e\u6027\u6ce8\u5165<\/h2>\n<p>(1)@Autowired:\u6839\u636e\u5c5e\u6027\u7c7b\u578b\u8fdb\u884c\u81ea\u52a8\u88c5\u914d\uff08xml byType\uff09<br \/>\n\u7b2c\u4e00\u6b65\uff1a\u628aservice\u548cdao\u5bf9\u8c61\u521b\u5efa\uff0c\u5728service\u548cdao\u7c7b\u6dfb\u52a0\u521b\u5efa\u5bf9\u8c61\u6ce8\u89e3\uff08xml byName\uff09<br \/>\n\u7b2c\u4e8c\u6b65\uff1a\u5728service\u6ce8\u5165dao\u5bf9\u8c61\uff0c\u5728service\u7c7b\u6dfb\u52a0dao\u7c7b\u578b\u5c5e\u6027\uff0c\u5728\u5c5e\u6027\u4e0a\u9762\u4f7f\u7528\u6ce8\u89e3 \uff08\u53ef\u4ee5\u6839\u636e\u7c7b\u578b\u4e5f\u53ef\u4ee5\u6839\u636e\u540d\u79f0\uff09<\/p>\n<pre><code class=\"language-java\">@Repository\npublic class UserDaoImpl implements UserDao{\n\n    @Override\n    public void add() {\n        System.out.println(&quot;dao add .....&quot;);\n    }\n}<\/code><\/pre>\n<pre><code class=\"language-java\">@Service\npublic class UserService {\n\n    \/\/\u5b9a\u4e49dao\u7c7b\u578b\u5c5e\u6027\n    \/\/\u4e0d\u9700\u8981\u6dfb\u52a0set\u65b9\u6cd5\n    \/\/\u6dfb\u52a0\u6ce8\u5165\u5c5e\u6027\u6ce8\u89e3\n    @Autowired\/\/\u6839\u636e\u7c7b\u578b\u6ce8\u5165\n    private UserDao userDao;\n\n    public void add(){\n        System.out.println(&quot;service add .....&quot;);\n        userDao.add();\n    }\n}<\/code><\/pre>\n<p>(2)@Qualifier:\u6839\u636e\u540d\u79f0\u8fdb\u884c\u6ce8\u5165<br \/>\n\u8fd9\u4e2a@Qualifier\u6ce8\u89e3\u7684\u4f7f\u7528\uff0c\u548c\u4e0a\u9762@Autowired\u4e00\u8d77\u4f7f\u7528<\/p>\n<pre><code class=\"language-java\">@Repository(&quot;userDaoImplTe&quot;)\npublic class UserDaoImpl implements UserDao{\n\n    @Override\n    public void add() {\n        System.out.println(&quot;dao add .....&quot;);\n    }\n}<\/code><\/pre>\n<pre><code class=\"language-java\">@Service\npublic class UserService {\n\n    \/\/\u5b9a\u4e49dao\u7c7b\u578b\u5c5e\u6027\n    \/\/\u4e0d\u9700\u8981\u6dfb\u52a0set\u65b9\u6cd5\n    \/\/\u6dfb\u52a0\u6ce8\u5165\u5c5e\u6027\u6ce8\u89e3\n    @Autowired  \/\/\u6839\u636e\u7c7b\u578b\u6ce8\u5165\n    @Qualifier(value = &quot;userDaoImplTe&quot;) \/\/\u6839\u636e\u540d\u79f0\uff08value\uff09\u8fdb\u884c\u6ce8\u5165\n    private UserDao userDao;\n\n    public void add(){\n        System.out.println(&quot;service add .....&quot;);\n        userDao.add();\n    }\n}\n<\/code><\/pre>\n<p>(3)@Resource:\u53ef\u4ee5\u6839\u636e\u7c7b\u578b\u6ce8\u5165\uff0c\u53ef\u4ee5\u6839\u636e\u540d\u79f0\u6ce8\u5165<br \/>\n\u975espring\u6ce8\u89e3\uff0cjava\u6269\u5c55\u5305\u6ce8\u89e3<\/p>\n<pre><code class=\"language-java\">@Service\npublic class UserService {\n\n    \/\/\u5b9a\u4e49dao\u7c7b\u578b\u5c5e\u6027\n    \/\/\u4e0d\u9700\u8981\u6dfb\u52a0set\u65b9\u6cd5\n    \/\/\u6dfb\u52a0\u6ce8\u5165\u5c5e\u6027\u6ce8\u89e3\n\/\/    @Autowired  \/\/\u6839\u636e\u7c7b\u578b\u6ce8\u5165\n\/\/    @Qualifier(value = &quot;userDaoImplTe&quot;) \/\/\u6839\u636e\u540d\u79f0\uff08value\uff09\u8fdb\u884c\u6ce8\u5165\n\n    \/\/@Resource   \/\/\u9ed8\u8ba4 \u6ca1\u6709\u5b9a\u4e49 name\u503c\u65f6 \u6839\u636e\u7c7b\u578b\u6ce8\u5165\n    @Resource(name = &quot;userDaoImplTe&quot;)   \/\/ name\u6709\u503c\u65f6 \u6839\u636e\u540d\u79f0\u6ce8\u5165\n    private UserDao userDao;\n\n    public void add(){\n        System.out.println(&quot;service add .....&quot;);\n        userDao.add();\n    }\n}<\/code><\/pre>\n<p>(4)@Value:\u6ce8\u5165\u666e\u901a\u7c7b\u578b\u5c5e\u6027<\/p>\n<pre><code class=\"language-java\">@Service\npublic class UserService {\n\n    \/\/\u5b9a\u4e49dao\u7c7b\u578b\u5c5e\u6027\n    \/\/\u4e0d\u9700\u8981\u6dfb\u52a0set\u65b9\u6cd5\n    \/\/\u6dfb\u52a0\u6ce8\u5165\u5c5e\u6027\u6ce8\u89e3\n\/\/    @Autowired  \/\/\u6839\u636e\u7c7b\u578b\u6ce8\u5165\n\/\/    @Qualifier(value = &quot;userDaoImplTe&quot;) \/\/\u6839\u636e\u540d\u79f0\uff08value\uff09\u8fdb\u884c\u6ce8\u5165\n\n    @Value(value = &quot;hello&quot;)\n    private String str;\n\n    \/\/@Resource   \/\/\u9ed8\u8ba4 \u6ca1\u6709\u5b9a\u4e49 name\u503c\u65f6 \u6839\u636e\u7c7b\u578b\u6ce8\u5165\n    @Resource(name = &quot;userDaoImplTe&quot;)   \/\/ name\u6709\u503c\u65f6 \u6839\u636e\u540d\u79f0\u6ce8\u5165\n    private UserDao userDao;\n\n    public void add(){\n        System.out.println(&quot;service add .....&quot;+str);\n        userDao.add();\n    }\n}<\/code><\/pre>\n<p>\u6267\u884c\u7ed3\u679c\uff1a<\/p>\n<pre><code class=\"language-java\">com.spring5.service.UserService@184cf7cf\nservice add .....hello\ndao add .....<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>\u57fa\u4e8e\u6ce8\u89e3\u65b9\u5f0f\u5b9e\u73b0\u5c5e\u6027\u6ce8\u5165 (1)@Autowired:\u6839\u636e\u5c5e\u6027\u7c7b\u578b\u8fdb\u884c\u81ea\u52a8\u88c5\u914d\uff08xml byType\uff09 \u7b2c\u4e00\u6b65 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[125],"tags":[68],"class_list":["post-293","post","type-post","status-publish","format-standard","hentry","category-java-backend","tag-spring"],"_links":{"self":[{"href":"https:\/\/blog.ttwow.top\/index.php?rest_route=\/wp\/v2\/posts\/293","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.ttwow.top\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.ttwow.top\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.ttwow.top\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.ttwow.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=293"}],"version-history":[{"count":1,"href":"https:\/\/blog.ttwow.top\/index.php?rest_route=\/wp\/v2\/posts\/293\/revisions"}],"predecessor-version":[{"id":2156,"href":"https:\/\/blog.ttwow.top\/index.php?rest_route=\/wp\/v2\/posts\/293\/revisions\/2156"}],"wp:attachment":[{"href":"https:\/\/blog.ttwow.top\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=293"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.ttwow.top\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=293"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.ttwow.top\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=293"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}