{"id":213,"date":"2014-08-29T10:45:07","date_gmt":"2014-08-29T02:45:07","guid":{"rendered":"http:\/\/www.codeeel.com\/?p=213"},"modified":"2014-08-29T10:45:07","modified_gmt":"2014-08-29T02:45:07","slug":"%e8%ae%be%e8%ae%a1%e6%a8%a1%e5%bc%8f-%e7%ae%80%e5%8d%95%e5%b7%a5%e5%8e%82%e6%a8%a1%e5%bc%8f%e5%92%8c%e6%8a%bd%e8%b1%a1%e5%b7%a5%e5%8e%82%e6%a8%a1%e5%bc%8f","status":"publish","type":"post","link":"https:\/\/www.codeeel.com\/?p=213","title":{"rendered":"\u8bbe\u8ba1\u6a21\u5f0f-\u7b80\u5355\u5de5\u5382\u6a21\u5f0f\u548c\u62bd\u8c61\u5de5\u5382\u6a21\u5f0f"},"content":{"rendered":"<p>\u7b80\u5355\u5de5\u5382\u6a21\u5f0f<\/p>\n<p>1. \u76ee\u7684<br \/>\n\u5de5\u5382\u6a21\u5f0f\u5c31\u662f\u4e13\u95e8\u8d1f\u8d23\u5c06\u5927\u91cf\u6709\u5171\u540c\u63a5\u53e3\u7684\u7c7b\u5b9e\u4f8b\u5316,\u800c\u4e14\u4e0d\u5fc5\u4e8b\u5148\u77e5\u9053\u6bcf\u6b21\u662f\u8981\u5b9e\u4f8b\u5316\u54ea\u4e00\u4e2a\u7c7b\u7684\u6a21\u5f0f\u3002\u5b83\u5b9a\u4e49\u4e00\u4e2a\u7528\u4e8e\u521b\u5efa\u5bf9\u8c61\u7684\u63a5\u53e3\uff0c\u7531\u5b50\u7c7b\u51b3\u5b9a\u5b9e\u4f8b\u5316\u54ea\u4e00\u4e2a\u7c7b\u3002<br \/>\n2 . \u7b80\u5355\u5de5\u5382\u6a21\u5f0f\u7684\u7ed3\u6784<\/p>\n<p><a href=\"http:\/\/www.codeeel.com\/wp-content\/uploads\/2014\/08\/1.gif\"><img loading=\"lazy\" class=\"alignnone size-medium wp-image-214\" title=\"1\" src=\"http:\/\/www.codeeel.com\/wp-content\/uploads\/2014\/08\/1-300x164.gif\" alt=\"\" width=\"300\" height=\"164\" srcset=\"https:\/\/www.codeeel.com\/wp-content\/uploads\/2014\/08\/1-300x164.gif 300w, https:\/\/www.codeeel.com\/wp-content\/uploads\/2014\/08\/1.gif 494w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<p>3.\u00a0\u4e00\u4e2a\u7b80\u5355\u4f8b\u5b50<\/p>\n<div>\n<div>java \u4ee3\u7801<\/div>\n<div>\n<pre class=\"lang:default decode:true \">\/\/ \u4ea7\u54c1\u63a5\u53e3         \r\npublic interface Product {   \r\n\r\n    public void getName();   \r\n\r\n}   \r\n\r\n\/\/ \u5177\u4f53\u4ea7\u54c1A   \r\npublic class ProductA implements Product {   \r\n\r\n    public void getName() {   \r\n        System.out.println(\"  I am ProductA  \");   \r\n    }   \r\n\r\n}   \r\n\r\n\/\/ \u5177\u4f53\u4ea7\u54c1B   \r\npublic class ProductB implements Product {   \r\n\r\n    public void getName() {   \r\n        System.out.println(\"  I am ProductB  \");   \r\n    }   \r\n\r\n}   \r\n\r\n\/\/ \u5de5\u5382\u7c7b   \r\npublic class ProductCreator {   \r\n\r\n    public Product createProduct(String type) {   \r\n        if (\" A \".equals(type)) {   \r\n            return new ProductA();   \r\n        }   \r\n        if (\" B \".equals(type)) {   \r\n            return new ProductB();   \r\n        } else  \r\n            return null;   \r\n    }   \r\n\r\n    public static void main(String[] args) {   \r\n        ProductCreator creator = new ProductCreator();   \r\n        creator.createProduct(\" A \").getName();   \r\n        creator.createProduct(\" B \").getName();   \r\n    }   \r\n}<\/pre>\n<p>4. \u5c0f\u7ed3\u5de5\u5382\u6a21\u5f0f\u7684\u9002\u7528\u8303\u56f4<br \/>\n\u2022 \u5728\u7f16\u7801\u65f6\u4e0d\u80fd\u9884\u89c1\u9700\u8981\u521b\u5efa\u54ea\u4e00\u79cd\u7c7b\u7684\u5b9e\u4f8b\u3002<br \/>\n\u2022 \u4e00\u4e2a\u7c7b\u4f7f\u7528\u5b83\u7684\u5b50\u7c7b\u6765\u521b\u5efa\u5bf9\u8c61\u3002<br \/>\n\u2022 \u5f00\u53d1\u4eba\u5458\u4e0d\u5e0c\u671b\u521b\u5efa\u4e86\u54ea\u4e2a\u7c7b\u7684\u5b9e\u4f8b\u4ee5\u53ca\u5982\u4f55\u521b\u5efa\u5b9e\u4f8b\u7684\u4fe1\u606f\u66b4\u9732\u7ed9\u5916\u90e8\u7a0b\u5e8f\u3002<\/p>\n<p>\u62bd\u8c61\u5de5\u5382\u6a21\u5f0f<\/p>\n<p>1. \u62bd\u8c61\u5de5\u5382\u6a21\u5f0f\u53ef\u4ee5\u8bf4\u662f\u7b80\u5355\u5de5\u5382\u6a21\u5f0f\u7684\u6269\u5c55\uff0c\u5b83\u4eec\u4e3b\u8981\u7684\u533a\u522b\u5728\u4e8e\u9700\u8981\u521b\u5efa\u5bf9\u8c61\u7684\u590d\u6742\u7a0b\u5ea6\u4e0a\u3002<br \/>\n\u5728\u62bd\u8c61\u5de5\u5382\u6a21\u5f0f\u4e2d\uff0c\u62bd\u8c61\u4ea7\u54c1\u53ef\u80fd\u662f\u4e00\u4e2a\u6216\u591a\u4e2a\uff0c\u4ece\u800c\u6784\u6210\u4e00\u4e2a\u6216\u591a\u4e2a\u4ea7\u54c1\u65cf\u3002 \u5728\u53ea\u6709\u4e00\u4e2a\u4ea7\u54c1\u65cf\u7684\u60c5\u51b5\u4e0b\uff0c\u62bd\u8c61\u5de5\u5382\u6a21\u5f0f\u5b9e\u9645\u4e0a\u9000\u5316\u5230\u5de5\u5382\u65b9\u6cd5\u6a21\u5f0f\u3002<br \/>\n2. \u62bd\u8c61\u5de5\u5382\u6a21\u5f0f\u7684\u7ed3\u6784<\/p>\n<p><a href=\"http:\/\/www.codeeel.com\/wp-content\/uploads\/2014\/08\/2.gif\"><img loading=\"lazy\" class=\"alignnone size-medium wp-image-215\" title=\"2\" src=\"http:\/\/www.codeeel.com\/wp-content\/uploads\/2014\/08\/2-300x148.gif\" alt=\"\" width=\"300\" height=\"148\" srcset=\"https:\/\/www.codeeel.com\/wp-content\/uploads\/2014\/08\/2-300x148.gif 300w, https:\/\/www.codeeel.com\/wp-content\/uploads\/2014\/08\/2.gif 527w\" sizes=\"(max-width: 300px) 100vw, 300px\" \/><\/a><\/p>\n<pre class=\"lang:default decode:true \">\/\/  \u4ea7\u54c1 Plant\u63a5\u53e3         \r\npublic interface Plant {   \r\n}   \r\n\r\n\/\/ \u5177\u4f53\u4ea7\u54c1PlantA\uff0cPlantB   \r\npublic class PlantA implements Plant {   \r\n\r\n    public PlantA() {   \r\n        System.out.println(\" create PlantA ! \");   \r\n    }   \r\n\r\n    public void doSomething() {   \r\n        System.out.println(\"  PlantA do something  \");   \r\n    }   \r\n}   \r\n\r\npublic class PlantB implements Plant {   \r\n    public PlantB() {   \r\n        System.out.println(\" create PlantB ! \");   \r\n    }   \r\n\r\n    public void doSomething() {   \r\n        System.out.println(\"  PlantB do something  \");   \r\n    }   \r\n}   \r\n\r\n\/\/ \u4ea7\u54c1 Fruit\u63a5\u53e3   \r\npublic interface Fruit {   \r\n}   \r\n\r\n\/\/ \u5177\u4f53\u4ea7\u54c1FruitA\uff0cFruitB   \r\npublic class FruitA implements Fruit {   \r\n    public FruitA() {   \r\n        System.out.println(\" create FruitA ! \");   \r\n    }   \r\n\r\n    public void doSomething() {   \r\n        System.out.println(\"  FruitA do something  \");   \r\n    }   \r\n}   \r\n\r\npublic class FruitB implements Fruit {   \r\n    public FruitB() {   \r\n        System.out.println(\" create FruitB ! \");   \r\n    }   \r\n\r\n    public void doSomething() {   \r\n        System.out.println(\"  FruitB do something  \");   \r\n    }   \r\n}   \r\n\r\n\/\/ \u62bd\u8c61\u5de5\u5382\u65b9\u6cd5   \r\npublic interface AbstractFactory {   \r\n    public Plant createPlant();   \r\n\r\n    public Fruit createFruit();   \r\n}   \r\n\r\n\/\/ \u5177\u4f53\u5de5\u5382\u65b9\u6cd5   \r\npublic class FactoryA implements AbstractFactory {   \r\n    public Plant createPlant() {   \r\n        return new PlantA();   \r\n    }   \r\n\r\n    public Fruit createFruit() {   \r\n        return new FruitA();   \r\n    }   \r\n}   \r\n\r\npublic class FactoryB implements AbstractFactory {   \r\n    public Plant createPlant() {   \r\n        return new PlantB();   \r\n    }   \r\n\r\n    public Fruit createFruit() {   \r\n        return new FruitB();   \r\n    }   \r\n}<\/pre>\n<p>4. \u5c0f\u7ed3<br \/>\n\u5728\u4ee5\u4e0b\u60c5\u51b5\u4e0b\uff0c\u5e94\u5f53\u8003\u8651\u4f7f\u7528\u62bd\u8c61\u5de5\u5382\u6a21\u5f0f\u3002<br \/>\n\u9996\u5148\uff0c\u4e00\u4e2a\u7cfb\u7edf\u5e94\u5f53\u4e0d\u4f9d\u8d56\u4e8e\u4ea7\u54c1\u7c7b\u5b9e\u4f8b\u88ab\u521b\u7acb\uff0c\u7ec4\u6210\uff0c\u548c\u8868\u793a\u7684\u7ec6\u8282\u3002\u8fd9\u5bf9\u4e8e\u6240\u6709\u5f62\u6001\u7684\u5de5\u5382\u6a21\u5f0f\u90fd\u662f\u91cd\u8981\u7684\u3002<br \/>\n\u5176\u6b21\uff0c\u8fd9\u4e2a\u7cfb\u7edf\u7684\u4ea7\u54c1\u6709\u591a\u4e8e\u4e00\u4e2a\u7684\u4ea7\u54c1\u65cf\u3002<br \/>\n\u7b2c\u4e09\uff0c\u540c\u5c5e\u4e8e\u540c\u4e00\u4e2a\u4ea7\u54c1\u65cf\u7684\u4ea7\u54c1\u662f\u8bbe\u8ba1\u6210\u5728\u4e00\u8d77\u4f7f\u7528\u7684\u3002\u8fd9\u4e00\u7ea6\u675f\u5fc5\u987b\u5f97\u5728\u7cfb\u7edf\u7684\u8bbe\u8ba1\u4e2d\u4f53\u73b0\u51fa\u6765\u3002<br \/>\n\u6700\u540e\uff0c\u4e0d\u540c\u7684\u4ea7\u54c1\u4ee5\u4e00\u7cfb\u5217\u7684\u63a5\u53e3\u7684\u9762\u8c8c\u51fa\u73b0\uff0c\u4ece\u800c\u4f7f\u7cfb\u7edf\u4e0d\u4f9d\u8d56\u4e8e\u63a5\u53e3\u5b9e\u73b0\u7684\u7ec6\u8282\u3002<br \/>\n\u5176\u4e2d\u7b2c\u4e8c\u4e36\u7b2c\u4e09\u4e2a\u6761\u4ef6\u662f\u6211\u4eec\u9009\u7528\u62bd\u8c61\u5de5\u5382\u6a21\u5f0f\u800c\u975e\u5176\u5b83\u5f62\u6001\u7684\u5de5\u5382\u6a21\u5f0f\u7684\u5173\u952e\u6027\u6761\u4ef6\u3002<\/p>\n<\/div>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>\u7b80\u5355\u5de5\u5382\u6a21\u5f0f 1. \u76ee\u7684 \u5de5\u5382\u6a21\u5f0f\u5c31\u662f\u4e13\u95e8\u8d1f\u8d23\u5c06\u5927\u91cf\u6709\u5171\u540c\u63a5\u53e3\u7684\u7c7b\u5b9e\u4f8b\u5316,\u800c\u4e14\u4e0d\u5fc5\u4e8b\u5148\u77e5\u9053\u6bcf\u6b21\u662f\u8981\u5b9e\u4f8b\u5316\u54ea\u4e00\u4e2a\u7c7b\u7684\u6a21\u5f0f\u3002\u5b83\u5b9a\u4e49\u4e00\u4e2a\u7528\u4e8e\u521b\u5efa\u5bf9\u8c61\u7684\u63a5\u53e3\uff0c\u7531\u5b50\u7c7b\u51b3\u5b9a\u5b9e\u4f8b\u5316\u54ea\u4e00\u4e2a\u7c7b\u3002 2 . \u7b80\u5355\u5de5\u5382\u6a21\u5f0f\u7684\u7ed3\u6784 3.\u00a0\u4e00\u4e2a\u7b80\u5355\u4f8b\u5b50 java \u4ee3\u7801 \/\/ \u4ea7\u54c1\u63a5\u53e3 public interface Product { publ<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[7],"tags":[127,128,126],"_links":{"self":[{"href":"https:\/\/www.codeeel.com\/index.php?rest_route=\/wp\/v2\/posts\/213"}],"collection":[{"href":"https:\/\/www.codeeel.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.codeeel.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.codeeel.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.codeeel.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=213"}],"version-history":[{"count":1,"href":"https:\/\/www.codeeel.com\/index.php?rest_route=\/wp\/v2\/posts\/213\/revisions"}],"predecessor-version":[{"id":216,"href":"https:\/\/www.codeeel.com\/index.php?rest_route=\/wp\/v2\/posts\/213\/revisions\/216"}],"wp:attachment":[{"href":"https:\/\/www.codeeel.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=213"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.codeeel.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=213"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.codeeel.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=213"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}