{"id":1372,"date":"2021-06-01T14:34:34","date_gmt":"2021-06-01T06:34:34","guid":{"rendered":"https:\/\/www.52dixiaowo.com\/java\/?p=1372"},"modified":"2021-06-01T15:03:32","modified_gmt":"2021-06-01T07:03:32","slug":"spring%e7%9a%84ioc-di","status":"publish","type":"post","link":"https:\/\/www.52dixiaowo.com\/java\/post-1372.html","title":{"rendered":"spring\u7684IOC\/DI"},"content":{"rendered":"\n<p>spring\u6846\u67b6, \u6709\u4e24\u5927\u6838\u5fc3\u90e8\u5206, \u5206\u522b\u662f<\/p>\n\n\n\n<ul><li>spring\u7684 IOC\/DI<\/li><li>spring\u7684 AOP<\/li><\/ul>\n\n\n\n<p>\u5176\u4e2d, IOC\u548cDI\u867d\u7136\u4e0d\u662f\u540c\u4e00\u4e2a\u6982\u5ff5, \u5374\u662f\u540c\u4e00\u4e2a\u6982\u5ff5\u7684\u4e0d\u540c\u89d2\u5ea6\u63cf\u8ff0<\/p>\n\n\n\n<h2>IOC: \u63a7\u5236\u53cd\u8f6c<\/h2>\n\n\n\n<p>spring\u7684IOC, \u4e5f\u79f0\u4e3a\u63a7\u5236\u53cd\u8f6c, \u63a7\u5236\u53cd\u8f6c\u662f\u4ece\u5bb9\u5668\u89d2\u5ea6\u63cf\u8ff0\u7684<\/p>\n\n\n\n<p>springIOC\u89e3\u51b3\u4e86\u4ec0\u4e48\u95ee\u9898\u5462? \u9996\u5148\u6211\u4eec\u6765\u770b\u4e00\u4e0b\u4e0b\u9762\u7684\u4ee3\u7801, \u5206\u6790\u4e0boop\u7684\u4f9d\u8d56<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>\/\/\u767b\u5f55\u9a8c\u8bc1\n\/\/1.\u83b7\u53d6\u7528\u6237\u540d\u548c\u5bc6\u7801\nString uname = request.getParameter(\"uname\");\nString upwd = request.getParameter(\"upwd\");\n\/\/2.\u6839\u636e\u53c2\u6570, \u8c03\u7528dao\u67e5\u8be2\u6570\u636e\u5e93, dao\u5b9e\u73b0\u7c7b\u5224\u65adtrue or false\nboolean loginSucess = new LoginDaoImpl().loginCheck(uname,upwd);<\/code><\/pre>\n\n\n\n<p>\u4e0a\u9762\u7684\u4ee3\u7801\u4e2d, \u6211\u4eec\u5fc5\u987b\u5148\u5199\u4e0aLoginDaoInpl\u8fd9\u4e2a\u7c7b, \u5e76\u4e14\u5b9e\u73b0\u8fd9\u4e2a\u65b9\u6cd5, \u5426\u5219\u7f16\u8bd1\u4e0d\u901a\u8fc7, \u4f20\u7edf\u7684oop\u4ee3\u7801\u4e2d, \u4ee3\u7801\u4e92\u76f8\u4f9d\u8d56\u5f88\u5f3a, \u4e5f\u5c31\u662f\u8026\u5408\u5ea6\u5f88\u9ad8<\/p>\n\n\n\n<p>springIOC\u7684\u76ee\u7684\u662f\u4e3a\u4e86\u4ee3\u7801\u89e3\u8026, \u5728\u4e0a\u9762\u8fd9\u4e2a\u4f8b\u5b50\u4e2d, \u4f60\u53ef\u4ee5\u7406\u89e3\u4e3acontroller\u5c42(\u4e1a\u52a1\u5c42)\u76f4\u63a5\u8c03\u7528\u4e86bean(\u7ec4\u4ef6), <strong>springIOC\u5219\u7981\u6b62coltroller\u76f4\u63a5\u8c03\u7528bean, \u6211\u4eec\u628abean\u4ea4\u7ed9spring\u5bb9\u5668\u7ba1\u7406, \u800ccontroller\u4ece\u5bb9\u5668\u4e2d\u83b7\u53d6bean<\/strong>, \u8fd9\u6837\u4e00\u6765\u7f16\u8bd1\u671f\u4f9d\u8d56\u5c31\u4f1a\u51cf\u5c11, \u81f3\u5c11\u7f16\u8bd1\u80fd\u901a\u8fc7, \u8fd9\u4e5f\u610f\u5473\u7740\u4ee3\u7801\u4ece\u903b\u8f91\u4e0a\u66f4\u5bb9\u6613\u7406\u89e3.<\/p>\n\n\n\n<p>springIOC\u901a\u8fc7\u5bb9\u5668\u4f5c\u4e3a\u4e2d\u95f4\u5bf9\u8c61, \u51cf\u5c11\u4e86controller\u548cbean\u4e4b\u95f4\u7684\u8026\u5408\u5ea6<\/p>\n\n\n\n<h2>DI: \u4f9d\u8d56\u6ce8\u5165<\/h2>\n\n\n\n<p>springIOC\u7b97\u662f\u4e00\u79cd\u601d\u60f3, \u800cspringDI\u662f\u5b83\u7684\u4e00\u79cd\u7b80\u5355\u5b9e\u73b0\u65b9\u5f0f<\/p>\n\n\n\n<p>\u6211\u4eec\u5982\u4f55\u628abean\u4ea4\u7ed9spring\u5bb9\u5668\u7ba1\u7406? DI\u5219\u662f\u8fd9\u6837\u7684\u5b9e\u73b0\u65b9\u5f0f, \u7c7b\u4f3c\u4e8eMaven\u8fd9\u6837\u7684pom.xml\u5bfc\u5165\u4f9d\u8d56\u5750\u6807\u7684\u65b9\u5f0f, DI\u540c\u6837\u4f7f\u7528xml\u7684\u65b9\u5f0f\u628abean\u6ce8\u5165\u5230\u5bb9\u5668\u4e2d, \u8fd9\u4e5f\u5c31\u662f\u4f9d\u8d56\u6ce8\u5165<\/p>\n\n\n\n<p>\u4e3a\u4e86\u7b80\u5316\u4f9d\u8d56\u6ce8\u5165, \u6709\u66f4\u7b80\u5355\u7684\u6ce8\u89e3\u6ce8\u5165\u65b9\u5f0f<\/p>\n\n\n\n<p>\u7efc\u4e0a, springIOC\/DI\u5176\u5b9e\u8868\u8fbe\u7684\u662f\u540c\u4e00\u4e2a\u601d\u60f3, \u4f46\u5b83\u4eec\u662f\u5728\u4e0d\u540c\u89d2\u5ea6\u7684\u7406\u89e3.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>spring\u6846\u67b6, \u6709\u4e24\u5927\u6838\u5fc3\u90e8\u5206, \u5206\u522b\u662f spring\u7684 IOC\/DI spring\u7684 AOP \u5176\u4e2d, I&hellip; <a href=\"https:\/\/www.52dixiaowo.com\/java\/post-1372.html\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb <span class=\"screen-reader-text\">spring\u7684IOC\/DI<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[37],"tags":[],"_links":{"self":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/posts\/1372"}],"collection":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/comments?post=1372"}],"version-history":[{"count":0,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/posts\/1372\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/media?parent=1372"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/categories?post=1372"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/tags?post=1372"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}