{"id":31646,"date":"2022-12-31T20:11:31","date_gmt":"2024-03-09T17:41:55","guid":{"rendered":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8java%e4%b8%ad%e4%bd%bf%e7%94%a8%e8%a7%82%e5%af%9f%e8%80%85%e6%a8%a1%e5%bc%8f%e3%80%82\/"},"modified":"2024-04-29T07:52:02","modified_gmt":"2024-04-28T23:52:02","slug":"%e5%9c%a8java%e4%b8%ad%e4%bd%bf%e7%94%a8%e8%a7%82%e5%af%9f%e8%80%85%e6%a8%a1%e5%bc%8f%e3%80%82","status":"publish","type":"post","link":"https:\/\/www.silicloud.com\/zh\/blog\/%e5%9c%a8java%e4%b8%ad%e4%bd%bf%e7%94%a8%e8%a7%82%e5%af%9f%e8%80%85%e6%a8%a1%e5%bc%8f%e3%80%82\/","title":{"rendered":"\u5728Java\u4e2d\u4f7f\u7528\u89c2\u5bdf\u8005\u6a21\u5f0f"},"content":{"rendered":"

\u9996\u5148<\/h1>\n

\u6211\u4f1a\u603b\u7ed3\u4e00\u4e0b\u6211\u8bfb\u8fc7\u7684\u300a\u5b66\u4e60Java\u8bed\u8a00\u7684\u8bbe\u8ba1\u6a21\u5f0f\u5165\u95e8\u300b\u8fd9\u672c\u4e66\uff0c\u5176\u4e2d\u4ecb\u7ecd\u4e86GoF\u7684\u8bbe\u8ba1\u6a21\u5f0f\u3002<\/p>\n

\u89c2\u5bdf\u8005\u6a21\u5f0f<\/h1>\n

\u300c\u89c2\u5bdf\u8005\u300d\u662f\u6307\u4e00\u4e2a\u4eba\u6216\u4e00\u4e2a\u5b9e\u4f53\uff0c\u8d1f\u8d23\u89c2\u5bdf\u3001\u76d1\u7763\u6216\u8bb0\u5f55\u4e8b\u4ef6\u3001\u60c5\u51b5\u6216\u5bf9\u8c61\u7684\u53d1\u5c55\u548c\u53d8\u5316\u3002<\/h2>\n

\u300c\u89c2\u5bdf\uff08observe\uff09\u7684\u4eba\u300d\u88ab\u79f0\u4e3a\u300c\u89c2\u5bdf\u8005\u300d\u3002
\n\u5f53\u89c2\u5bdf\u76ee\u6807\u7684\u72b6\u6001\u53d1\u751f\u53d8\u5316\u65f6\uff0c\u4f1a\u5411\u89c2\u5bdf\u8005\u53d1\u9001\u901a\u77e5\u7684\u6a21\u5f0f\u79f0\u4e3a\u89c2\u5bdf\u8005\u6a21\u5f0f\u3002
\n\u7a0d\u540e\u4f1a\u8be6\u7ec6\u4ecb\u7ecd\uff0c\u89c2\u5bdf\u76ee\u6807\u9700\u8981\u5411\u89c2\u5bdf\u8005\u53d1\u9001\u901a\u77e5\uff0c\u800c\u89c2\u5bdf\u8005\u5904\u4e8e\u88ab\u52a8\u7684\u4f4d\u7f6e\uff0c\u56e0\u6b64\u4e5f\u88ab\u79f0\u4e3a\u53d1\u5e03-\u8ba2\u9605\u6a21\u5f0f\u3002<\/p>\n

\u8bf7\u63cf\u8ff0\u4ee5\u4e0b\u767b\u573a\u4eba\u7269\uff08\u6c49\u8bed\u6bcd\u8bed\uff09<\/h2>\n
\"image.png\"<\/div>\n

\u62bd\u8c61\u7c7b<\/h3>\n
    \n
  • \n
      Subject<\/ul>\n<\/li>\n<\/ul>\n

       <\/p>\n

        \n
      • \n
          \u89b3\u5bdf\u3055\u308c\u308b\u5074\u3068\u306a\u308b\u30af\u30e9\u30b9\u3067\u3059\u3002<\/ul>\n<\/li>\n<\/ul>\n

           <\/p>\n

            \n
          • \n
              \u81ea\u8eab\u3092\u89b3\u5bdf\u3059\u308bobservers(\u8907\u6570\u306eobserver)\u3068\u305d\u308c\u3089\u3092\u767b\u9332\u30fb\u524a\u9664\u30fb\u901a\u77e5\u3059\u308b\u30e1\u30bd\u30c3\u30c9\u3084\u81ea\u8eab\u306e\u72b6\u614b\u3092\u8fd4\u3059\u30e1\u30bd\u30c3\u30c9\u3092\u6301\u3061\u307e\u3059\u3002<\/ul>\n<\/li>\n<\/ul>\n

               <\/p>\n

                \n
              • \n
                  \u5148\u307b\u3069\u8ff0\u3079\u305f\u3088\u3046\u306b\u3001\u89b3\u5bdf\u3055\u308c\u308b\u5074\u3067\u3042\u308b\u306f\u305asubject\u304c\u89b3\u5bdf\u3059\u308b\u5074\u306eobserver\u3092\u4fdd\u6301\u3057\u3066\u3044\u308b\u70b9\u304c\u6ce8\u610f\u3059\u3079\u304d\u70b9\u3067\u3059\u3002<\/ul>\n<\/li>\n<\/ul>\n

                   <\/p>\n

                    \n
                  • \n
                      Observer<\/ul>\n<\/li>\n<\/ul>\n

                       <\/p>\n

                        \n
                      • \n
                          subject\u3092\u89b3\u5bdf\u3059\u308b\u5074\u306e\u30af\u30e9\u30b9\u3067\u3059\u3002<\/ul>\n<\/li>\n<\/ul>\n

                           <\/p>\n

                            \u89b3\u5bdf\u3068\u8a00\u3063\u3066\u3082subject\u304b\u3089\u901a\u77e5\u3055\u308c\u3066\u521d\u3081\u3066\u89b3\u5bdf\u5bfe\u8c61\u306e\u72b6\u614b\u304c\u5909\u5316\u3057\u305f\u3053\u3068\u3092\u77e5\u308a\u307e\u3059\u3002<\/ul>\n

                            \u5b9e\u73b0\u7c7b<\/h3>\n
                              \n
                            • \n
                                ConcreteSubject<\/ul>\n<\/li>\n<\/ul>\n

                                 <\/p>\n

                                  \n
                                • \n
                                    \u5177\u4f53\u7684\u306a\u89b3\u5bdf\u3055\u308c\u308b\u5074\u3068\u306a\u308b\u30af\u30e9\u30b9\u3067\u3059\u3002<\/ul>\n<\/li>\n<\/ul>\n

                                     <\/p>\n

                                      \n
                                    • \n
                                        \u89aa\u30af\u30e9\u30b9\u3067\u5ba3\u8a00\u3055\u308c\u3066\u3044\u308b\u3001\u81ea\u8eab\u306e\u72b6\u614b\u3092\u8fd4\u3059getSubjectStatus\u30e1\u30bd\u30c3\u30c9\u3092\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3057\u307e\u3059\u3002<\/ul>\n<\/li>\n<\/ul>\n

                                         <\/p>\n

                                          \n
                                        • \n
                                            ConcreteObserveer<\/ul>\n<\/li>\n<\/ul>\n

                                             <\/p>\n

                                              \n
                                            • \n
                                                \u5177\u4f53\u7684\u306a\u89b3\u5bdf\u3059\u308b\u5074\u3068\u306a\u308b\u30af\u30e9\u30b9\u3067\u3059\u3002<\/ul>\n<\/li>\n<\/ul>\n

                                                 <\/p>\n

                                                  \u89aa\u30af\u30e9\u30b9\u3067\u5ba3\u8a00\u3055\u308c\u3066\u3044\u308b\u3001\u89b3\u5bdf\u5bfe\u8c61\u306e\u72b6\u614b\u304c\u5909\u5316\u3057\u305f\u3053\u3068\u3092\u901a\u77e5\u3055\u308c\u308b\u305f\u3081\u306eupdate\u30e1\u30bd\u30c3\u30c9\u3092\u30aa\u30fc\u30d0\u30fc\u30e9\u30a4\u30c9\u3057\u307e\u3059\u3002<\/ul>\n

                                                  \u5177\u4f53\u7684\u4f8b\u5b50<\/h2>\n
                                                  \"image.png\"<\/div>\n

                                                  \u62bd\u8c61\u7c7b<\/h3>\n

                                                  NumGenerator\u30af\u30e9\u30b9<\/p>\n

                                                  import<\/span> java.util.ArrayList<\/span>;<\/span>\r\nimport<\/span> java.util.List<\/span>;<\/span>\r\n\r\npublic<\/span> abstract<\/span> class<\/span> NumGenerator<\/span> {<\/span>\r\n\r\n    \/\/ Observer\u306eList\u3092\u4fdd\u6301<\/span>\r\n    private<\/span> List<\/span><<\/span>Observer<\/span>><\/span> observers<\/span> =<\/span> new<\/span> ArrayList<\/span><>();<\/span>\r\n\r\n    \/\/ Observer\u3092\u8ffd\u52a0<\/span>\r\n    public<\/span> void<\/span> addObserver<\/span>(<\/span>Observer<\/span> observer<\/span>)<\/span> {<\/span>\r\n        observers<\/span>.<\/span>add<\/span>(<\/span>observer<\/span>);<\/span>\r\n    }<\/span>\r\n\r\n    \/\/ Observer\u3092\u524a\u9664<\/span>\r\n    public<\/span> void<\/span> deleteObserver<\/span>(<\/span>Observer<\/span> observer<\/span>)<\/span> {<\/span>\r\n        observers<\/span>.<\/span>remove<\/span>(<\/span>observer<\/span>);<\/span>\r\n    }<\/span>\r\n\r\n    \/\/ Observer\u3078\u901a\u77e5<\/span>\r\n    public<\/span> void<\/span> notifyObservers<\/span>()<\/span> {<\/span>\r\n        for<\/span> (<\/span>Observer<\/span> observer<\/span> :<\/span> observers<\/span>)<\/span> {<\/span>\r\n            observer<\/span>.<\/span>update<\/span>(<\/span>this<\/span>);<\/span>\r\n        }<\/span>\r\n    }<\/span>\r\n\r\n    \/\/ \u6570\u3092\u53d6\u5f97\u3059\u308b<\/span>\r\n    public<\/span> abstract<\/span> int<\/span> getNumber<\/span>();<\/span>\r\n\r\n    \/\/ \u6570\u3092\u751f\u6210\u3059\u308b(\u72b6\u614b\u306e\u66f4\u65b0)<\/span>\r\n    public<\/span> abstract<\/span> void<\/span> execute<\/span>();<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                                                  \u8fd9\u662f\u4e00\u4e2a\u4f5c\u4e3a\u89c2\u5bdf\u5bf9\u8c61\u7684Subject\u7c7b\u3002
                                                  \n\u7531\u4e8e\u53ef\u80fd\u5b58\u5728\u591a\u4e2a\u89c2\u5bdf\u8005\uff0c\u6240\u4ee5\u5b83\u5728List\u4e2d\u4fdd\u5b58\u4e86Observer\u3002
                                                  \n\u6b64\u5916\uff0c\u5b83\u8fd8\u6709\u7528\u4e8e\u6ce8\u518c\u548c\u5220\u9664\u89c2\u5bdf\u8005\u7684\u65b9\u6cd5\uff0c\u4ee5\u53ca\u7528\u4e8e\u901a\u77e5\u6ce8\u518c\u8005\u7684\u65b9\u6cd5\u3002
                                                  \n\u5728notifyObservers\u65b9\u6cd5\u4e2d\uff0c\u4f1a\u8c03\u7528\u5177\u4f53\u89c2\u5bdf\u8005\u7684update\u65b9\u6cd5\u3002<\/p>\n
                                                  Observer\u30af\u30e9\u30b9<\/p>\n
                                                  public<\/span> interface<\/span> Observer<\/span> {<\/span>\r\n    public<\/span> abstract<\/span> void<\/span> update<\/span>(<\/span>NumGenerator<\/span> generator<\/span>);<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                                                  \u8fd9\u4e2a\u7c7b\u7684\u4f5c\u7528\u662f\u5145\u5f53\u89c2\u5bdfNumGenerator\u7684\u89d2\u8272\u3002
                                                  \n\u6211\u58f0\u660e\u4e86\u4e00\u4e2a\u7528\u4e8e\u63a5\u6536\u901a\u77e5\u7684update\u65b9\u6cd5\uff0c\u4f46\u5b9e\u73b0\u5c06\u7531\u7ee7\u627f\u8be5\u7c7b\u7684\u5176\u4ed6\u7c7b\u6765\u5b8c\u6210\u3002<\/p>\n
                                                  \u5b9e\u73b0\u7c7b<\/h3>\n
                                                  RandomNumGenerator\u30af\u30e9\u30b9<\/p>\n
                                                  import<\/span> java.util.Random<\/span>;<\/span>\r\n\r\npublic<\/span> class<\/span> RandomNumGenerator<\/span> extends<\/span> NumGenerator<\/span> {<\/span>\r\n    \/\/ \u4e71\u6570\u751f\u6210\u6a5f<\/span>\r\n    private<\/span> Random<\/span> random<\/span> =<\/span> new<\/span> Random<\/span>();<\/span>\r\n    \/\/ \u73fe\u5728\u306e\u6570<\/span>\r\n    private<\/span> int<\/span> number<\/span>;<\/span>\r\n\r\n    \/\/ \u6570\u3092\u53d6\u5f97\u3059\u308b<\/span>\r\n    @Override<\/span>\r\n    public<\/span> int<\/span> getNumber<\/span>()<\/span> {<\/span>\r\n        return<\/span> number<\/span>;<\/span>\r\n    }<\/span>\r\n\r\n    \/\/ \u6570\u3092\u751f\u6210\u3059\u308b(\u72b6\u614b\u306e\u66f4\u65b0)<\/span>\r\n    @Override<\/span>\r\n    public<\/span> void<\/span> execute<\/span>()<\/span> {<\/span>\r\n        for<\/span> (<\/span>int<\/span> i<\/span> =<\/span> 0<\/span>;<\/span> i<\/span> <<\/span> 10<\/span>;<\/span> i<\/span>++)<\/span> {<\/span>\r\n            \/\/ 0\uff5e20\u306e\u7bc4\u56f2\u3067\u4e71\u6570\u3092\u751f\u6210\u3057\u3066\u73fe\u5728\u306e\u6570\u306e\u66f4\u65b0<\/span>\r\n            number<\/span> =<\/span> random<\/span>.<\/span>nextInt<\/span>(<\/span>21<\/span>);<\/span>\r\n            System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"\u30eb\u30fc\u30d7\u30ab\u30a6\u30f3\u30c8:\"<\/span> +<\/span> (<\/span>i<\/span> +<\/span> 1<\/span>));<\/span>\r\n            \/\/ \u6570\u304c\u751f\u6210\u3055\u308c\u305f\u3053\u3068\u3092observer\u3078\u901a\u77e5<\/span>\r\n            notifyObservers<\/span>();<\/span>\r\n        }<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                                                  \u8fd9\u662f\u4e00\u4e2a\u7ee7\u627fNumGenerator\u7c7b\u5e76\u62c5\u5f53\u5177\u4f53\u89c2\u5bdf\u5bf9\u8c61\u89d2\u8272\u7684\u7c7b\u3002
                                                  \n\u5b83\u5177\u6709\u8868\u793a\u968f\u673a\u6570\u548c\u5f53\u524d\u6570\u7684\u5b57\u6bb5\uff0c\u5e76\u4e14\u5177\u6709\u83b7\u53d6\u6570\u503c\u7684\u65b9\u6cd5\u548c\u751f\u6210\u6570\u503c\u7684\u65b9\u6cd5\u3002
                                                  \n\u5728\u751f\u6210\u6570\u503c\u7684\u65b9\u6cd5\u4e2d\uff0c\u5b83\u5faa\u73af10\u6b21\uff0c\u5728\u6bcf\u4e2a\u5faa\u73af\u4e2d\u83b7\u5f970\u81f320\u4e4b\u95f4\u7684\u968f\u673a\u6570\uff0c\u5e76\u5c06\u8be5\u968f\u673a\u6570\u8bbe\u7f6e\u4e3a\u5f53\u524d\u6570\u503c\uff0c\u4ee5\u66f4\u65b0\u72b6\u6001\u3002
                                                  \n\u6b64\u5916\uff0c\u5b83\u4f7f\u7528notifyObservers\u65b9\u6cd5\u5c06\u66f4\u65b0\u7684\u72b6\u6001\u901a\u77e5\u7ed9\u6bcf\u4e2a\u89c2\u5bdf\u8005\u3002<\/p>\n
                                                  DigitObserver\u30af\u30e9\u30b9<\/p>\n
                                                  public<\/span> class<\/span> DigitObserver<\/span> implements<\/span> Observer<\/span> {<\/span>\r\n    @Override<\/span>\r\n    public<\/span> void<\/span> update<\/span>(<\/span>NumGenerator<\/span> generator<\/span>)<\/span> {<\/span>\r\n        \/\/ \u89b3\u5bdf\u8005\u304c\u6301\u3064\u4e71\u6570\u3092\u53d6\u5f97\u3057\u3066\u8868\u793a<\/span>\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"DigitObserver:\"<\/span> +<\/span> generator<\/span>.<\/span>getNumber<\/span>());<\/span>\r\n        try<\/span> {<\/span>\r\n            Thread<\/span>.<\/span>sleep<\/span>(<\/span>100<\/span>);<\/span>\r\n        }<\/span> catch<\/span> (<\/span>InterruptedException<\/span> e<\/span>)<\/span> {<\/span>\r\n        }<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                                                  \u5728\u5b9e\u73b0Observer\u63a5\u53e3\u7684\u5177\u4f53\u89c2\u5bdf\u8005\u7c7b\u4e2d\uff0c\u6211\u91cd\u5199\u4e86update\u65b9\u6cd5\u3002\u8be5\u65b9\u6cd5\u7528\u4e8e\u63cf\u8ff0\u5f53\u89c2\u5bdf\u5bf9\u8c61\u901a\u77e5\u66f4\u65b0\u65f6\u5177\u4f53\u89c2\u5bdf\u8005\u6267\u884c\u7684\u64cd\u4f5c\u3002\u5728\u8fd9\u91cc\uff0c\u6211\u6253\u5370\u51fa\u89c2\u5bdf\u5bf9\u8c61\u6240\u6301\u6709\u7684\u968f\u673a\u6570\uff08\u5373\u66f4\u65b0\u540e\u7684\u5f53\u524d\u6570\uff09\u3002<\/p>\n
                                                  StringObserver\u30af\u30e9\u30b9<\/p>\n
                                                  import<\/span> org.apache.commons.lang3.RandomStringUtils<\/span>;<\/span>\r\n\r\npublic<\/span> class<\/span> StringObserver<\/span> implements<\/span> Observer<\/span> {<\/span>\r\n    @Override<\/span>\r\n    public<\/span> void<\/span> update<\/span>(<\/span>NumGenerator<\/span> generator<\/span>)<\/span> {<\/span>\r\n        System<\/span>.<\/span>out<\/span>.<\/span>print<\/span>(<\/span>\"StringObserver:\"<\/span>);<\/span>\r\n        \/\/ \u89b3\u5bdf\u8005\u304c\u6301\u3064\u4e71\u6570\u3092\u5f15\u6570\u3068\u3057\u3066\u3001\u30e9\u30f3\u30c0\u30e0\u306a\u30a2\u30eb\u30d5\u30a1\u30d9\u30c3\u30c8\u6587\u5b57\u5217\u3092\u53d6\u5f97\u3057\u3066\u8868\u793a<\/span>\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>RandomStringUtils<\/span>.<\/span>randomAlphabetic<\/span>(<\/span>generator<\/span>.<\/span>getNumber<\/span>()));<\/span>\r\n        System<\/span>.<\/span>out<\/span>.<\/span>println<\/span>(<\/span>\"----------------------------------------\"<\/span>);<\/span>\r\n        try<\/span> {<\/span>\r\n            Thread<\/span>.<\/span>sleep<\/span>(<\/span>100<\/span>);<\/span>\r\n        }<\/span> catch<\/span> (<\/span>InterruptedException<\/span> e<\/span>)<\/span> {<\/span>\r\n        }<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                                                  \u8fd9\u4e2a\u7c7b\u5145\u5f53\u4e86\u4e0eDigitObserver\u7c7b\u4f3c\u7684\u5177\u4f53\u89c2\u5bdf\u8005\u89d2\u8272\u3002\u5728\u8fd9\u91cc\uff0c\u5b83\u63a5\u6536\u4f5c\u4e3a\u53c2\u6570\u7684\u89c2\u5bdf\u76ee\u6807\u7684\u968f\u673a\u6570\uff08\u66f4\u65b0\u540e\u7684\u5f53\u524d\u6570\uff09\uff0c\u5e76\u663e\u793a\u7531\u968f\u673a\u5b57\u6bcd\u7ec4\u6210\u7684\u5b57\u7b26\u4e32\u3002<\/p>\n
                                                  \u6267\u884c\u7c7b<\/h3>\n
                                                  Main\u30af\u30e9\u30b9<\/p>\n
                                                  public<\/span> class<\/span> Main<\/span> {<\/span>\r\n    public<\/span> static<\/span> void<\/span> main<\/span>(<\/span>String<\/span>[]<\/span> args<\/span>)<\/span> {<\/span>\r\n        \/\/ \u5177\u4f53\u7684\u306a\u89b3\u5bdf\u5bfe\u8c61\u306e\u751f\u6210<\/span>\r\n        NumGenerator<\/span> generator<\/span> =<\/span> new<\/span> RandomNumGenerator<\/span>();<\/span>\r\n        \/\/ \u5177\u4f53\u7684\u306a\u89b3\u5bdf\u5bfe\u8c61\u306b\u5177\u4f53\u7684\u306a\u89b3\u5bdf\u8005\u3092\u767b\u9332<\/span>\r\n        generator<\/span>.<\/span>addObserver<\/span>(<\/span>new<\/span> DigitObserver<\/span>());<\/span>\r\n        generator<\/span>.<\/span>addObserver<\/span>(<\/span>new<\/span> StringObserver<\/span>());<\/span>\r\n        \/\/ \u6570\u306e\u751f\u6210(\u72b6\u614b\u306e\u66f4\u65b0)<\/span>\r\n        generator<\/span>.<\/span>execute<\/span>();<\/span>\r\n    }<\/span>\r\n}<\/span>\r\n<\/code><\/pre>\n
                                                  \u5728\u8fdb\u884c\u4e86\u5177\u4f53\u89c2\u5bdf\u5bf9\u8c61\u7684\u751f\u6210\u548c\u5c06\u5177\u4f53\u89c2\u5bdf\u8005\u6ce8\u518c\u4e3a\u89c2\u5bdf\u5bf9\u8c61\u7684\u5904\u7406\u4e4b\u540e\uff0c\u901a\u8fc7\u751f\u6210\u6570\u5b57\u6765\u66f4\u65b0\u72b6\u6001\u3002<\/p>\n
                                                  \u6267\u884c\u7ed3\u679c<\/h3>\n
                                                  \u4ee5\u4e0b\u662f\u6267\u884cMain\u7c7b\u7684\u7ed3\u679c\u3002
                                                  \n\u53ef\u4ee5\u770b\u51fa\u6211\u5df2\u7ecf\u6267\u884c\u4e8610\u6b21\u968f\u673a\u751f\u6210\u4e71\u6570\u548c\u4e0e\u4e71\u6570\u4f4d\u6570\u76f8\u5bf9\u5e94\u7684\u968f\u673a\u5b57\u7b26\u4e32\u7684\u663e\u793a\u64cd\u4f5c\u3002
                                                  \n*\u7531\u4e8e\u4f7f\u7528\u4e86\u968f\u673a\u6570\uff0c\u6240\u4ee5\u663e\u793a\u7ed3\u679c\u53ef\u80fd\u4f1a\u6709\u6240\u4e0d\u540c\u3002<\/p>\n
                                                  \u30eb\u30fc\u30d7\u30ab\u30a6\u30f3\u30c8:1\r\nDigitObserver:14\r\nStringObserver:VNXxKnJCmkbOSG\r\n----------------------------------------\r\n\u30eb\u30fc\u30d7\u30ab\u30a6\u30f3\u30c8:2\r\nDigitObserver:15\r\nStringObserver:FUBpVQotKbSwmMX\r\n----------------------------------------\r\n\u30eb\u30fc\u30d7\u30ab\u30a6\u30f3\u30c8:3\r\nDigitObserver:6\r\nStringObserver:onRlXn\r\n----------------------------------------\r\n\u30eb\u30fc\u30d7\u30ab\u30a6\u30f3\u30c8:4\r\nDigitObserver:18\r\nStringObserver:AehtMZiGkzYgapTgok\r\n----------------------------------------\r\n\u30eb\u30fc\u30d7\u30ab\u30a6\u30f3\u30c8:5\r\nDigitObserver:8\r\nStringObserver:XuRUWXnb\r\n----------------------------------------\r\n\u30eb\u30fc\u30d7\u30ab\u30a6\u30f3\u30c8:6\r\nDigitObserver:11\r\nStringObserver:JHYAeuMfMDO\r\n----------------------------------------\r\n\u30eb\u30fc\u30d7\u30ab\u30a6\u30f3\u30c8:7\r\nDigitObserver:12\r\nStringObserver:sopRShHkheIO\r\n----------------------------------------\r\n\u30eb\u30fc\u30d7\u30ab\u30a6\u30f3\u30c8:8\r\nDigitObserver:11\r\nStringObserver:BLATKGBDccR\r\n----------------------------------------\r\n\u30eb\u30fc\u30d7\u30ab\u30a6\u30f3\u30c8:9\r\nDigitObserver:18\r\nStringObserver:kmSHMbZZftRyGkpaqa\r\n----------------------------------------\r\n\u30eb\u30fc\u30d7\u30ab\u30a6\u30f3\u30c8:10\r\nDigitObserver:15\r\nStringObserver:muYkfeGLfwYqykD\r\n----------------------------------------\r\n<\/code><\/pre>\n
                                                  \u512a\u9ede<\/h2>\n
                                                  \u901a\u8fc7\u4f7f\u7528\u89c2\u5bdf\u8005\u6a21\u5f0f\uff0c\u53ef\u4ee5\u5c06\u7528\u4e8e\u4fdd\u6301\u72b6\u6001\u7684\u7c7b\u548c\u63a5\u6536\u72b6\u6001\u53d8\u5316\u901a\u77e5\u7684\u7c7b\u5206\u79bb\uff0c\u4ece\u800c\u63d0\u9ad8\u7c7b\u7684\u53ef\u91cd\u7528\u6027\uff08\u7ec4\u4ef6\u5316\uff09\u3002<\/p>\n
                                                  \u8fd0\u7528\u4e4b\u5904<\/h2>\n
                                                  \u89c2\u5bdf\u8005\u6a21\u5f0f\u7684\u7528\u9014\u4e4b\u4e00\u662f\u5728MVC\u6a21\u578b\u7684\u5b9e\u73b0\u4e2d\uff0c\u5904\u7406\u6a21\u578b\u548c\u89c6\u56fe\u7684\u534f\u4f5c\u3002
                                                  \n\u6a21\u578b\u662f\u5185\u90e8\u6570\u636e\uff0c\u63a7\u5236\u5668\u901a\u8fc7\u68c0\u6d4b\u6a21\u578b\uff08\u88ab\u89c2\u5bdf\u5bf9\u8c61\uff09\u72b6\u6001\u7684\u53d8\u5316\uff0c\u7136\u540e\u901a\u77e5\u89c6\u56fe\uff08\u89c2\u5bdf\u8005\uff09\u6765\u8fdb\u884c\u534f\u4f5c\u3002<\/p>\n
                                                  \u603b\u7ed3<\/h1>\n
                                                  \u6211\u5b66\u4e60\u4e86\u5173\u4e8e\u901a\u77e5\u5bf9\u8c61\u72b6\u6001\u53d8\u5316\u7684\u89c2\u5bdf\u8005\u6a21\u5f0f\u3002\u5982\u679c\u60a8\u65b9\u4fbf\uff0c\u4ee5\u4e0b\u662f\u793a\u4f8b\u4ee3\u7801\u4f9b\u60a8\u53c2\u8003\u3002<\/p>\n
                                                    Observer\u30b5\u30f3\u30d7\u30eb\u30b3\u30fc\u30c9<\/ul>\n
                                                    \u53e6\u5916\uff0c\u5173\u4e8e\u5176\u4ed6\u8bbe\u8ba1\u6a21\u5f0f\uff0c\u6211\u5728\u4e0b\u9762\u8fdb\u884c\u4e86\u603b\u7ed3\uff0c\u4e5f\u8bf7\u53c2\u8003\u3002<\/p>\n
                                                      [\u968f\u6642\u66f4\u65b0]Java\u3067\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u307e\u3068\u3081<\/ul>\n
                                                      \u6587\u732e\u5f15\u7528<\/h1>\n
                                                        \u5897\u88dc\u6539\u8a02\u7248 Java\u8a00\u8a9e\u3067\u5b66\u3076\u30c7\u30b6\u30a4\u30f3\u30d1\u30bf\u30fc\u30f3\u5165\u9580<\/ul>\n","protected":false},"excerpt":{"rendered":"
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