{"id":175,"date":"2013-01-02T16:54:37","date_gmt":"2013-01-02T08:54:37","guid":{"rendered":"http:\/\/lg.yusemo.com\/?p=175"},"modified":"2013-01-03T17:14:21","modified_gmt":"2013-01-03T09:14:21","slug":"simple-factory-pattern","status":"publish","type":"post","link":"https:\/\/lg.yusemo.com\/?p=175","title":{"rendered":"java\u4e0e\u6a21\u5f0f\u9605\u8bfb1\uff1a\u7b80\u5355\u5de5\u5382\u6a21\u5f0f"},"content":{"rendered":"<h2 style=\"text-align: center;\"><a href=\"http:\/\/lg.yusemo.com\/simple-factory-pattern\">\u8bbe\u8ba1\u6a21\u5f0f1:\u7b80\u5355\u5de5\u5382\u6a21\u5f0f<\/a><\/h2>\n<p><span style=\"color: #ff00ff;\">\u7b80\u5355\u5de5\u5382\u6a21\u5f0f<\/span>\uff1a\u662f\u5de5\u5382\u6a21\u5f0f\u548c\u62bd\u8c61\u5de5\u5382\u6a21\u5f0f\u7684\u4e00\u4e2a\u57fa\u7840\u3002<span style=\"color: #ff00ff;\">\u662f\u7531\u4e00\u4e2a\u5de5\u5382\u7c7b\u6839\u636e\u4f20\u5165\u7684\u53c2\u6570\u51b3\u5b9a\u521b\u5efa\u54ea\u4e00\u79cd\u4ea7\u54c1\u7c7b\u7684\u5b9e\u4f8b<\/span>\u3002<\/p>\n<p>\u6d89\u53ca\u5230\u7684\u89d2\u8272\uff1a<\/p>\n<p><span style=\"color: #ff00ff;\">\u5de5\u5382\u89d2\u8272\uff08creator\uff09<\/span>:\u5de5\u5382\u6a21\u5f0f\u7684\u6838\u5fc3\u3002\u542b\u6709\u4e0e\u5e94\u7528\u7d27\u5bc6\u76f8\u5173\u7684\u5546\u4e1a\u903b\u8f91\u3002\u5de5\u5382\u7c7b\u5728\u5ba2\u6237\u7aef\u7684\u76f4\u63a5\u8c03\u7528\u4e0b\u521b\u5efa\u5bf9\u8c61\uff0c\u5f80\u5f80\u7531\u4e00\u4e2a\u5177\u4f53java\u7c7b\u5b9e\u73b0\u3002<\/p>\n<p><span style=\"color: #ff00ff;\">\u62bd\u8c61\u4ea7\u54c1\uff08product\uff09<\/span>:\u662f\u7531\u5de5\u5382\u65b9\u6cd5\u6a21\u5f0f\u6240\u521b\u5efa\u7684\u5bf9\u8c61\u7684\u7236\u7c7b\u6216\u4ed6\u4eec\u5171\u540c\u62e5\u6709\u7684\u63a5\u53e3\u3002\u62bd\u8c61\u4ea7\u54c1\u89d2\u8272\u53ef\u4ee5\u7528\u4e00\u4e2ajava\u63a5\u53e3\u6216java\u62bd\u8c61\u7c7b\u5b9e\u73b0\u3002<\/p>\n<p><span style=\"color: #ff00ff;\">\u5177\u4f53\u4ea7\u54c1\u89d2\u8272\uff08concrete product\uff09<\/span>:\u5de5\u5382\u65b9\u6cd5\u6a21\u5f0f\u6240\u521b\u5efa\u7684\u4efb\u4f55\u5bf9\u8c61\u90fd\u662f\u8fd9\u4e2a\u89d2\u8272\u7684\u5b9e\u4f8b\u3002\u5177\u4f53\u4ea7\u54c1\u89d2\u8272\u7531\u4e00\u4e2a\u5177\u4f53\u7684java\u7c7b\u5b9e\u73b0\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u5e38\u89c1\u7684\u7ed3\u6784\u56fe\u5982\u4e0b\uff1a<\/p>\n<p>&nbsp;<\/p>\n<figure id=\"attachment_176\" aria-describedby=\"caption-attachment-176\" style=\"width: 692px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/lg.yusemo.com\/wp-content\/uploads\/2013\/01\/simpleFactory.png\"><img decoding=\"async\" loading=\"lazy\" class=\"size-full wp-image-176\" title=\"\u7b80\u5355\u5de5\u5382\u6a21\u5f0f\u901a\u7528\u7c7b\u56fe\" src=\"http:\/\/lg.yusemo.com\/wp-content\/uploads\/2013\/01\/simpleFactory.png\" alt=\"\u7b80\u5355\u5de5\u5382\u6a21\u5f0f\u901a\u7528\u7c7b\u56fe\" width=\"692\" height=\"383\" \/><\/a><figcaption id=\"caption-attachment-176\" class=\"wp-caption-text\">\u7b80\u5355\u5de5\u5382\u6a21\u5f0f\u901a\u7528\u7c7b\u56fe<\/figcaption><\/figure>\n<p>\u5176\u4e2d\u5de5\u5382\u7c7b\u7684\u4ee3\u7801\u5982:<\/p>\n<p>public class Creator {<\/p>\n<p>public Product getProduct(String which) {<\/p>\n<p>if (&#8220;1&#8221;.equals(which)) {<\/p>\n<p>return new ConcrateProduct1();<\/p>\n<p>}<\/p>\n<p>return new ConcrateProduct();<\/p>\n<p>}<\/p>\n<p>}<\/p>\n<p>\u6a21\u5f0f\u4e2d\u5e38\u7528\u5230\u63a5\u53e3\u548c\u62bd\u8c61\u7c7b\uff0c\u8fd9\u4e24\u8005\u7684\u5177\u4f53\u533a\u522b\uff0c\u5c06\u5728\u4e00\u7bc7\u65b0\u7684\u6587\u7ae0\u4e2d\u8fdb\u884c\u603b\u7ed3\u3002<\/p>\n<p>\u5728\u6a21\u5f0f\u4e2d\u662f\u4f7f\u7528\u63a5\u53e3\u8fd8\u662f\u62bd\u8c61\u7c7b\u7684\u95ee\u9898\u5f88\u56f0\u6270\u4eba\uff0c\u5728\u300ajava\u4e0e\u6a21\u5f0f\u300b\u4e00\u4e66\u4e2d\u662f\u8fd9\u6837\u63cf\u8ff0\u7684\uff1a\u5982\u679c\u5177\u4f53\u4ea7\u54c1\u7c7b\u5f7c\u6b64\u4e4b\u95f4\u6ca1\u6709\u5171\u540c\u7684\u5546\u4e1a\u903b\u8f91\uff0c\u90a3\u4e48\u4ea7\u54c1\u89d2\u8272\u53ef\u4ee5\u6709\u4e00\u4e2ajava\u63a5\u53e3\u626e\u6f14\uff0c\u5426\u5219\u5c31\u5e94\u8be5\u516c\u6709\u7684\u5546\u4e1a\u903b\u8f91\u79fb\u5230\u62bd\u8c61\u7c7b\u91cc\u9762\u3002\u5171\u540c\u7684\u4ee3\u7801\u5728\u7f16\u7801\u65f6\u5e94\u8be5\u4e0a\u79fb\uff0c\u4ee5\u8fbe\u5230\u5171\u4eab\u7684\u76ee\u7684\u3002<\/p>\n<p>\u4e0a\u8ff0\u7c7b\u56fe\u4e2d\u53ea\u6709\u4e00\u4e2a\u5de5\u5382\u65b9\u6cd5\uff0c\u4f46\u662f\u5b9e\u9645\u4e2d\u53ef\u4ee5\u6709\u591a\u4e2a\u5de5\u5382\u65b9\u6cd5\u3002Java\u4e2djava.text.DateFormat\u8bbe\u8ba1\u5c31\u4f7f\u7528\u4e86\u4e00\u79cd\u7279\u6b8a\u7684\u7b80\u5355\u5de5\u5382\u6a21\u5f0f\u3002\u5176\u7c7b\u56fe\u4e5f\u662f\u6bd4\u8f83\u6709\u8da3\u7684\uff0c\u4e00\u4e2a\u62bd\u8c61\u7c7b\u7adf\u7136\u53ef\u4ee5\u4ea7\u751f\u81ea\u8eab\u7684\u5b9e\u4f8b\u5bf9\u8c61\uff08\u5b9e\u9645\u4e0a\u662f\u5176\u5b50\u7c7bsimpleDateFormat\uff09\u3002<\/p>\n<p>&nbsp;<\/p>\n<figure id=\"attachment_177\" aria-describedby=\"caption-attachment-177\" style=\"width: 771px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/lg.yusemo.com\/wp-content\/uploads\/2013\/01\/dateformat.png\"><img decoding=\"async\" loading=\"lazy\" class=\"size-full wp-image-177\" title=\"dateformat\u7c7b\u56fe\" src=\"http:\/\/lg.yusemo.com\/wp-content\/uploads\/2013\/01\/dateformat.png\" alt=\"dateformat\u7c7b\u56fe\" width=\"771\" height=\"161\" \/><\/a><figcaption id=\"caption-attachment-177\" class=\"wp-caption-text\">dateformat\u7c7b\u56fe<\/figcaption><\/figure>\n<p>\u8fd9\u91cc\u4f7f\u7528\u9759\u6001\u5de5\u5382\u65b9\u6cd5\u662f\u4e3a\u4e86\u5c06\u5177\u4f53\u5b50\u7c7b\u5b9e\u4f8b\u5316\u7684\u5de5\u4f5c\u9690\u85cf\u8d77\u6765\uff0c\u4ece\u800c\u5ba2\u6237\u7aef\u4e0d\u5fc5\u8003\u8651\u5982\u4f55\u5c06\u5177\u4f53\u5b50\u7c7b\u5b9e\u4f8b\u5316\uff0c\u56e0\u6b64DateFormat\u4f1a\u63d0\u4f9b\u5b83\u7684\u5408\u9002\u7684\u5177\u4f53\u5b50\u7c7b\u7684\u5b9e\u4f8b\u3002<\/p>\n<p>\u5c06\u5de5\u5382\u7684\u65b9\u6cd5\u8fd4\u56de\u7c7b\u578b\u8bbe\u7f6e\u4e3a\u62bd\u8c61\u4ea7\u54c1\u7c7b\u578b\u7684\u505a\u6cd5\uff0c\u662f\u4e00\u79cd\u591a\u6001\u7684\u8fd0\u7528\uff0c\u53ef\u4ee5\u53eb\u505a\u9488\u5bf9\u62bd\u8c61\u7f16\u7a0b\u3002<\/p>\n<p>&nbsp;<\/p>\n<p>\u8bbe\u8ba1\u6a21\u5f0f\u5b66\u4e60\u5217\u8868\uff1a<a title=\"Java\u8bbe\u8ba1\u6a21\u5f0f\u5b66\u4e60\u7b14\u8bb0\" href=\"http:\/\/lg.yusemo.com\/java-design-patterns-study-notes\">Java\u8bbe\u8ba1\u6a21\u5f0f\u5b66\u4e60\u7b14\u8bb0<\/a><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8bbe\u8ba1\u6a21\u5f0f1:\u7b80\u5355\u5de5\u5382\u6a21\u5f0f \u7b80\u5355\u5de5\u5382\u6a21\u5f0f\uff1a\u662f\u5de5\u5382\u6a21\u5f0f\u548c\u62bd\u8c61\u5de5\u5382\u6a21\u5f0f\u7684\u4e00\u4e2a\u57fa\u7840\u3002\u662f\u7531\u4e00\u4e2a\u5de5\u5382\u7c7b\u6839\u636e\u4f20\u5165\u7684\u53c2\u6570\u51b3\u5b9a\u521b\u5efa\u54ea\u4e00\u79cd\u4ea7\u54c1\u7c7b\u7684\u5b9e\u4f8b\u3002 \u6d89\u53ca\u5230\u7684\u89d2\u8272\uff1a \u5de5\u5382\u89d2\u8272\uff08creator\uff09:\u5de5\u5382\u6a21\u5f0f\u7684\u6838\u5fc3\u3002\u542b\u6709\u4e0e\u5e94\u7528\u7d27\u5bc6\u76f8\u5173\u7684\u5546\u4e1a\u903b\u8f91\u3002\u5de5\u5382\u7c7b\u5728\u5ba2\u6237\u7aef\u7684\u76f4\u63a5\u8c03\u7528\u4e0b\u521b\u5efa\u5bf9\u8c61\uff0c\u5f80\u5f80\u7531\u4e00\u4e2a\u5177\u4f53java\u7c7b\u5b9e\u73b0\u3002 \u62bd\u8c61\u4ea7\u54c1&#8230;<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[],"tags":[],"_links":{"self":[{"href":"https:\/\/lg.yusemo.com\/index.php?rest_route=\/wp\/v2\/posts\/175"}],"collection":[{"href":"https:\/\/lg.yusemo.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/lg.yusemo.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/lg.yusemo.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/lg.yusemo.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=175"}],"version-history":[{"count":4,"href":"https:\/\/lg.yusemo.com\/index.php?rest_route=\/wp\/v2\/posts\/175\/revisions"}],"predecessor-version":[{"id":179,"href":"https:\/\/lg.yusemo.com\/index.php?rest_route=\/wp\/v2\/posts\/175\/revisions\/179"}],"wp:attachment":[{"href":"https:\/\/lg.yusemo.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=175"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/lg.yusemo.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=175"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/lg.yusemo.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=175"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}