{"id":352363,"date":"2021-02-14T08:20:56","date_gmt":"2021-02-14T00:20:56","guid":{"rendered":"http:\/\/4563.org\/?p=352363"},"modified":"2021-02-14T08:20:56","modified_gmt":"2021-02-14T00:20:56","slug":"%e5%a6%82%e4%bd%95%e5%88%a4%e6%96%ad-java-%e5%b7%a5%e7%a8%8b%e5%b8%88%e7%9a%84%e5%9f%ba%e7%a1%80%e7%9f%a5%e8%af%86%e6%98%af%e5%90%a6%e6%89%8e%e5%ae%9e%ef%bc%9f","status":"publish","type":"post","link":"http:\/\/4563.org\/?p=352363","title":{"rendered":"\u5982\u4f55\u5224\u65ad Java \u5de5\u7a0b\u5e08\u7684\u57fa\u7840\u77e5\u8bc6\u662f\u5426\u624e\u5b9e\uff1f"},"content":{"rendered":"
\n
\n
\n

\u5982\u4f55\u5224\u65ad Java \u5de5\u7a0b\u5e08\u7684\u57fa\u7840\u77e5\u8bc6\u662f\u5426\u624e\u5b9e\uff1f <\/h1>\n

<\/p>\n

\n
\u8cc7\u6df1\u5927\u4f6c : hakunamatata11 <\/span> <\/i> 3<\/span> <\/div>\n
<\/div>\n<\/p><\/div>\n<\/p><\/div>\n<\/p><\/div>\n
<\/p>\n

\u963f\u91cc P8 \u9762\u8bd5\u5b98\uff0c\u524d\u6bb5\u65f6\u95f4\u9762\u4e86\u5f88\u591a Java \u653b\u57ce\u72ee\u3002Java \u9762\u8bd5\u4e3b\u8981\u8003\u5bdf\u8fd9\u56db\u4e2a\u65b9\u9762\uff1a<\/p>\n

    \n
  • \u6e90\u7801\u8003\u5bdf<\/li>\n
  • \u9ad8\u53ef\u7528\u67b6\u6784\u7684\u9879\u76ee\u7ecf\u9a8c<\/li>\n
  • \u5927\u5382\u7684\u7a0b\u5e8f\u5458\u601d\u7ef4<\/li>\n
  • \u9762\u8bd5\u53cd\u5957\u8def\u6280\u5de7\uff08\u4ef7\u503c\u89c2+\u884c\u4e3a\u95ee\u9898\uff09<\/li>\n<\/ul>\n

    \u9762\u8bd5\u4e2d\u53d1\u73b0\u7684\u666e\u904d\u95ee\u9898\u662f\uff1a\u7f16\u7a0b\u57fa\u7840\u4e0d\u8fc7\u5173\uff0c\u4e0d\u61c2\u5f97\u6df1\u6316\u6280\u672f\u539f\u7406\u3002<\/strong>\u6545\u603b\u7ed3\u6b64\u6587\uff0c\u5e0c\u671b\u80fd\u5e2e\u5230\u60f3\u8981\u5de9\u56fa\u57fa\u7840\u77e5\u8bc6\u3001\u51b2\u523a\u5927\u5382 \/\u9ad8\u804c\u7ea7 offer \u7684\u5144\u5f1f\u3002<\/p>\n

    ** [\u57fa\u7840&\u91cd\u8981] \u6e90\u7801\u8003\u5bdf\uff0c\u8003\u5bdf\u4e2a\u5565\uff1f**<\/h1>\n

    <\/p>\n

    \u8003\u5bdf\u6e90\u7801\uff0c\u6392\u9664 [\u7801\u519c] \u3002<\/strong><\/p>\n

    \u56e0\u4e3a**\u5927\u5382\u4ece\u6765\u4e0d\u62db\u53ea\u4f1a\u5199\u4ee3\u7801\u7684 [\u7801\u519c] **\uff0c\u7edd\u5bf9\u4e0d\u80fd\u505c\u7559\u5728\u53ea\u4f1a\u7f16\u7a0b\u7684\u5c42\u9762\u3002<\/p>\n

    \u600e\u4e48\u505a\uff1f\u770b\u6211\u53e3\u578b\uff1a\u7a77\u6839\u7a76\u5e95\uff0c\u591a\u770b\u6e90\u7801\uff01<\/strong><\/p>\n

    \u6e90\u7801\u6570\u91cf\u591a\u3001\u7406\u89e3\u96be\uff0c\u7528\u9014\u8ff7\u3002\u5bf9\u4e8e Java \u9762\u8bd5\u51c6\u5907\uff0c\u719f\u8bfb\u5e76\u80cc\u8bf5<\/strong>\u4ee5\u4e0b\u6e90\u7801\u57fa\u672c\u591f\u4e86\uff1a<\/p>\n

      \n
    • JVM \u5e95\u5c42<\/li>\n
    • Spring \u5bb6\u65cf<\/li>\n
    • ORM-Hibernate\/Mybabit<\/li>\n
    • \u7ebf\u7a0b\u6c60 \/\u6570\u636e\u5e93\u8fde\u63a5\u6c60<\/li>\n
    • \u9ad8\u53ef\u7528\u63a5\u5165\uff1aNetty<\/li>\n<\/ul>\n

      \u66f4\u591a Java \u771f\u5b9e\u9762\u8bd5\u9898\u53ca\u5176\u89e3\u6790\uff0c\u4ee5\u53ca Java \u9ad8\u7ea7\u5de5\u7a0b\u5e08\u7684\u6280\u80fd\u6811\u3001\u4e0d\u540c\u7684\u7b49\u7ea7\u7684\u5de5\u7a0b\u5e08\u7684\u6280\u80fd\u8981\u6c42\u7b49\uff0c\u6211\u90fd\u4f1a\u5728\u300a Java \u9ad8\u7ea7\u5de5\u7a0b\u5e08 P6+\u300b\u7684\u8bb2\u5ea7\u4e2d\u8ddf\u5927\u5bb6\u5206\u4eab\u3002<\/p>\n

      \n

      \u6233\u6211\u62a5\u540d \u514d\u8d39\u8bd5\u542c<\/h2>\n<\/blockquote>\n

      \u6e90\u7801\u9762\u8bd5\uff0c\u771f\u5b9e\u8fd8\u539f\uff1a<\/strong><\/p>\n

      \u201c\u95ee\uff1aJava \u4e2d\u64cd\u4f5c\u5b57\u7b26\u4e32\u90fd\u6709\u54ea\u4e9b\u7c7b\uff1f\u5b83\u4eec\u4e4b\u95f4\u6709\u4ec0\u4e48\u533a\u522b\uff1f\u201d<\/p>\n

      \u8fd9\u9898\u719f\u6089\uff0c\u7a33\u4e86\u3002<\/p>\n

      \u4e00\u822c\u4eba\u8ba4\u4e3a\u7684\u65e0\u61c8\u53ef\u51fb\u56de\u7b54\uff1a<\/strong><\/p>\n

      \u5206\u522b\u662f String, StringBuffer, StringBuilder \u3002<\/p>\n

      \u533a\u522b\u662f String \u58f0\u660e\u7684\u662f\u4e0d\u53ef\u53d8\u7684\u5bf9\u8c61,\u6bcf\u6b21\u64cd\u4f5c\u5fc5\u7136\u4ea7\u751f\u4e00\u4e2a\u65b0\u7684\u5bf9\u8c61\u3002StringBuffer \u548c StringBuilder \u90fd\u7ee7\u627f\u81ea\u62bd\u8c61\u7c7b AbstractStringBuilder \u3002StringBuffer \u5177\u5907\u7ebf\u7a0b\u5b89\u5168\u6027\uff0c\u5728\u4f7f\u7528\u573a\u666f\u4e0a\uff0c\u5e76\u53d1\u5fc5\u9009 StringBuffer\uff0c\u8fed\u4ee3\u5fc5\u9009 StringBuilder\uff0c\u666e\u901a\u573a\u666f\u9009 String\uff0c\u907f\u514d\u4e2d\u9014\u4e0d\u5fc5\u8981\u7684\u7c7b\u578b\u8f6c\u6362\u5f00\u9500\u3002<\/p>\n

      \u56de\u7b54\u5b8c\u6bd5\uff0c\u6253\u5b8c\u6536\u5de5<\/strong>\u3002<\/p>\n

      \u9762\u8bd5\u5b98\u5185\u5fc3 OS\uff1a<\/strong>\u53ea\u638c\u63e1\u5230\u8fd9\u79cd\u7a0b\u5ea6\uff1f\u90a3\u968f\u4fbf\u518d\u95ee\u4e24\u4e2a\u95ee\u9898\u5c31\u8ba9\u56de\u53bb\u7b49\u901a\u77e5\u5427\u3002<\/p>\n

      \u5b9e\u9645\u9762\u8bd5\u5b98\u60f3\u542c\u5230\u7684 [\u66f4\u6df1\u5165\u7684] \u56de\u7b54<\/strong>\uff1a<\/p>\n

      StringBuffer \u548c StringBuilder \u90fd\u7ee7\u627f\u81ea\u62bd\u8c61\u7c7b AbstractStringBuilder \uff01<\/p>\n

      \"\u5982\u4f55\u5224\u65ad<\/p>\n

      \"\u5982\u4f55\u5224\u65ad<\/p>\n

      \n

      \u6233\u6211\u62a5\u540d \u514d\u8d39\u8bd5\u542c<\/h2>\n<\/blockquote>\n

      \u7136\u540e\u8ffd\u52a0\u89e3\u8bfb\uff1a<\/strong><\/p>\n

      final \u4fee\u9970\u2014>\u4e0d\u53ef\u53d8\u2014>\u6bcf\u6b21\u64cd\u4f5c\u90fd\u4f1a\u751f\u6210\u65b0\u7684 String \u5bf9\u8c61\uff0c\u5bf9\u6bd4 StringBuffer \u548c StringBuilder \u2014>\u503c\u53ef\u53d8\u3001\u62fc\u63a5\u5b57\u7b26\u4e32\u5f00\u9500\u3002<\/p>\n

      \"\u5982\u4f55\u5224\u65ad<\/p>\n

      \u6b64\u65f6\u9762\u8bd5\u5b98\u4f1a\u53cd\u624b\u796d\u51fa\u591a\u7ebf\u7a0b\u5927\u6cd5\uff0c\u8ffd\u95ee\u7ebf\u7a0b\u5b89\u5168\u6027\u3002<\/strong><\/p>\n

      \u673a\u667a\u5982\u4f60<\/strong>\uff08\u67e5\u6e90\u7801\uff0c\u627e synchronized \u3001\u7ebf\u7a0b\u9501\uff09\u5f97\u51fa\u7ed3\u8bba\uff1aStringBuffer \u5177\u5907\u7ebf\u7a0b\u5b89\u5168\u6027\u3002<\/p>\n

      \u9762\u8bd5\u5b98\u518d\u8ffd\u95ee<\/strong>\uff1aStringBuffer \u5177\u5907\u7ebf\u7a0b\u5b89\u5168\u6027\uff0c\u8fed\u4ee3\u5f00\u9500\u53c8\u5c0f\uff0c\u90a3\u6211\u4eec\u5b9e\u8df5\u4e2d\u9996\u9009\u5b83\u5c31 ok \u4e86\u5417?<\/p>\n

      \u2026\u2026<\/p>\n

      \u8fd9\u5c31\u662f\u5927\u5382\u7684\u9762\u8bd5\u5957\u8def\uff1a<\/p>\n

      \u7b80\u5355\u7684\u8bdd\u9898\u5f15\u5165 \u2014 \u95ee\u9898\u5c42\u5c42\u9012\u8fdb \u2014 \u518d\u8003\u5bdf\u6df1\u6316\u80cc\u540e\u7684\u539f\u7406<\/strong><\/p>\n

      \u76ee\u7684\u5373\u662f\u8003\u5bdf\u5bf9\u6e90\u7801\u7684\u6df1\u6316\u610f\u8bc6\u2014\u2014\u6280\u672f\u94bb\u7814\u4e0e\u6279\u5224\u6027\u601d\u7ef4\u3002<\/strong><\/p>\n

      \u8d8a\u662f\u770b\u4f3c\u7b80\u5355\u7684\u9898\u76ee\uff0c\u8d8a\u8981\u5c0f\u5fc3\uff0c\u7d27\u8ddf\u7740\u7684\u5957\u8def\u4f1a\u66f4\u591a\u3002<\/strong><\/p>\n

      ** [ P6 \u9762\u8bd5\u5fc5\u95ee] \u9ad8\u53ef\u7528\u67b6\u6784+\u4e1a\u52a1\u5bf9\u53e3\u7684\u5b9e\u8df5\u7ecf\u9a8c**<\/h1>\n

      <\/p>\n

      \u5173\u952e\u8bcd\uff1a\u4e1a\u52a1\u5bf9\u53e3\u3001\u9ad8\u53ef\u7528\u67b6\u6784\u3001\u5b9e\u8df5\u7ecf\u9a8c<\/strong><\/p>\n

      \u5144\u5f1f\u4eec\u6709\u6ca1\u6709\u89c9\u5f97\u8981\u5475\u5475\u3002<\/p>\n

      \u7ecf\u9a8c\u8fd9\u4e1c\u897f\uff0c\u6709\u5c31\u662f\u6709\uff0c\u6ca1\u6709\u5c31\u662f\u6ca1\u6709\u3002\u5f3a\u884c\u52a0\u620f\u53ea\u4f1a\u8ba9\u9762\u8bd5\u5b98\u548c\u4f60\u4e00\u8d77\u5c34\u5c2c\u3002<\/p>\n

      \u6211\u6b63\u63a8\u8fdb\u4e00\u4e2a\u4e92\u8054\u7f51\u9879\u76ee\uff0c\u4ee5\u4e07\u4ebf\u7ea7\u7528\u6237\u4e3a\u89c6\u89d2\uff0c\u4e1a\u52a1\u573a\u666f\u6bd4\u8f83\u4e30\u5bcc\u5bb9\u6613\u5207\u5bf9\u53e3\u3002<\/p>\n

      \u6240\u4ee5\u5982\u679c\u5b9e\u9645\u5de5\u4f5c\u73af\u5883\u4e2d\u786e\u5b9e\u7f3a\u4e4f\u6d77\u91cf\u6570\u636e\u4e0e\u9ad8\u5e76\u53d1\u573a\u666f\u78e8\u70bc\uff0c\u6ca1\u4ec0\u4e48\u62ff\u5f97\u51fa\u624b\u7684\u9879\u76ee\u7ecf\u9a8c<\/strong>\u7684\u8bdd\uff0c\u53ef\u4ee5\u6765\u542c\u6211\u7684\u6280\u672f\u8bb2\u5ea7\u300a\u963f\u91cc P8 \u9762\u8bd5\u5b98\u7684\u6280\u672f\u5206\u4eab\u300b\u3002<\/strong><\/p>\n

      \u6211\u8ba1\u5212\u7ed3\u5408\u9879\u76ee\u5b9e\u4f8b\uff0c\u5e26\u5927\u5bb6\u624b\u628a\u624b<\/strong>\u7684\u611f\u53d7\u5982\u4f55\u7ad9\u5728\u5927\u5382\u5de5\u7a0b\u5e08\u7684\u89d2\u5ea6\u5f00\u53d1\u3001\u5347\u7ea7\u67b6\u6784\u3002<\/strong>\u5bf9\u4e8e\u589e\u52a0<\/strong>\u9ad8\u8d28\u91cf\u7684\u9879\u76ee\u7ecf\u9a8c\u975e\u5e38\u6709\u5e2e\u52a9<\/strong>\u3002<\/p>\n

      \u611f\u5174\u8da3\u7684\u540c\u5b66\uff0c\u52a0\u5165\u9879\u76ee\u5b9e\u9645\u64cd\u4f5c\u4f53\u9a8c\u4f1a\u66f4\u6709\u52a0\u5206\u3002<\/p>\n

      \u5982\u679c\u60f3\u8981\u5b9e\u6253\u5b9e\u7684\u63d0\u5347\u7cfb\u7edf\u67b6\u6784\u601d\u7ef4\uff0c\u4e5f\u53ef\u4ee5\u79fb\u6b65\u6211\u4eec\u7684\u300a\u7cfb\u7edf\u67b6\u6784\u8bbe\u8ba1 2021 \u7248\u300b\uff0c\u5173\u4e8e\u7cfb\u7edf\u8bbe\u8ba1\u7684\u5168\u9762\u79d1\u666e\u3001\u5e38\u89c1\u95ee\u9898\u3001\u901a\u7528\u8bbe\u8ba1\u539f\u5219\u7b49<\/strong>\uff0c\u8fd9\u95e8\u8bfe\u7a0b\u90fd\u6709\u6d89\u53ca\u3002<\/p>\n

      \n

      \u6233\u6211\u62a5\u540d \u514d\u8d39\u8bd5\u542c<\/h2>\n<\/blockquote>\n

      \"\u5982\u4f55\u5224\u65ad<\/p>\n

      ** [\u7b80\u5355\uff0c\u4f46\u6211\u4e0d\u8bf4\u4f60\u4e0d\u77e5\u9053\u7684\u70b9] \u8868\u73b0\u51fa\u5927\u5382\u7684\u7a0b\u5e8f\u5458\u601d\u7ef4**<\/h1>\n

      <\/p>\n

      \u662f\u7684\uff0c\u8981\u65f6\u523b\u8868\u73b0\u51fa\u5927\u5382\u7684\u7a0b\u5e8f\u5458\u601d\u7ef4\uff0c\u8fd9\u975e\u5e38\u91cd\u8981\u3002<\/p>\n

      String.format(\"%0\" + n + \"d\", 0).replace(\"0\",\"\u975e\u5e38\u91cd\u8981\")  <\/code><\/pre>\n
      \uff08      <\/p><\/div>\n
       \u5927\u4f6c\u6709\u8a71\u8aaa<\/b> (0<\/span>)        <\/div>\n
       <\/div>\n<\/p><\/div>\n<\/p><\/div>\n
        \n
      • \n","protected":false},"excerpt":{"rendered":"
        \u5982\u4f55\u5224\u65ad Java \u5de5\u7a0b\u5e08\u7684\u57fa\u7840\u77e5…<\/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":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/352363"}],"collection":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=352363"}],"version-history":[{"count":0,"href":"http:\/\/4563.org\/index.php?rest_route=\/wp\/v2\/posts\/352363\/revisions"}],"wp:attachment":[{"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=352363"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=352363"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/4563.org\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=352363"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}