{"id":233,"date":"2009-11-19T23:08:49","date_gmt":"2009-11-19T15:08:49","guid":{"rendered":"http:\/\/leegorous.net\/blog\/?p=233"},"modified":"2012-03-03T20:27:23","modified_gmt":"2012-03-03T12:27:23","slug":"diy-java-timer","status":"publish","type":"post","link":"http:\/\/leegorous.net\/blog\/2009\/11\/19\/diy-java-timer\/","title":{"rendered":"Java\u5b9a\u65f6\u5668"},"content":{"rendered":"<p>\u8fd9\u4e2a\u4efb\u52a1\u662f\u8981\u6c42\u6bcf\u79d2\u89e6\u53d1\u4e00\u6b21\u3002<\/p>\n<p>\u4e00\u5f00\u59cb\u6211\u5c1d\u8bd5\u7528 Timer \u7684 scheduleAtFixedRate\uff0c\u901a\u8fc7\u7b80\u5355\u7684\u6d4b\u8bd5\uff0c\u53d1\u73b0\u5b83\u4f1a\u6162\u6162\u5730\u7d2f\u79ef\u5f62\u6210\u65f6\u95f4\u5dee\u3002<\/p>\n<p>\u867d\u7136\u8fd9\u91cc\u4e0d\u8981\u6c42\u975e\u5e38\u7684\u7cbe\u786e\uff0c\u4f46\u662f\u5982\u679c\u53ea\u662f\u5728\u67d0\u70b9\u9644\u8fd1\u5f98\u5f8a\uff0c\u4e0d\u4f1a\u53d1\u751f\u7d2f\u79ef\u7684\uff0c\u542c\u8d77\u6765\u662f\u4e0d\u662f\u4f1a\u597d\u4e00\u70b9\u5462\uff1f<\/p>\n<p>\u4e8e\u662f\u5c31\u8bde\u751f\u4e86\u4e0b\u9762\u7684\u4ee3\u7801\u3002<\/p>\n<pre name=\"code\" class=\"brush: java\">\r\nwhile (true) {\r\n\ttry {\r\n\t\tlong i = 1000 - System.currentTimeMillis() % 1000;\r\n\t\tif (i &gt; 100) {\r\n\t\t\tThread.sleep(i);\r\n\t\t} else {\r\n\t\t\tThread.sleep(1000 + i);\r\n\t\t}\r\n\t} catch (InterruptedException e) {\r\n\t\te.printStackTrace();\r\n\t}\r\n\tSystem.out.println(System.currentTimeMillis());\r\n}\r\n<\/pre>\n<p>\u8fd9\u91cc\u5b9a\u7684\u90a3\u4e2a\u53c2\u7167\u70b9\u5c31\u662f\u6bcf\u79d2\u7684\u96f6\u6beb\u79d2\uff0c\u5148\u83b7\u53d6\u5f53\u524d\u6beb\u79d2\u6570\uff0c\u8ba1\u7b97\u51fa\u5230\u4e0b\u4e00\u79d2\u4e4b\u95f4\u7684\u6beb\u79d2\u6570\u3002<\/p>\n<p>\u63a5\u4e0b\u6765\u7684\u6bd4\u8f83\u5f88\u91cd\u8981\uff0c\u5982\u679c\u5e0c\u671b\u6bcf\u79d2\u53ea\u6267\u884c\u4e00\u6b21\u7684\u8bdd\uff0c\u8fd9\u4e2a\u662f\u5fc5\u987b\u7684\uff0c\u56e0\u4e3a java \u7684 sleep \u771f\u7684\u4e0d\u592a\u53ef\u9760\uff08\u8fd9\u4e5f\u662f\u4e3a\u4ec0\u4e48\u9700\u8981\u548c100\u6beb\u79d2\u505a\u6bd4\u8f83\uff09\uff0c\u5b9e\u9645\u6267\u884c\u65f6\u90a3\u662f\u4e00\u4e2a\u9707\u8361\u72b6\u6001\uff0c\u628a else \u53bb\u6389\u4e4b\u540e\u4f1a\u51fa\u73b0\u610f\u60f3\u4e0d\u5230\u7684\u73b0\u8c61\u3002<\/p>\n<p>\u901a\u8fc7\u6253\u5370\u7ed3\u679c\uff0c\u53ef\u4ee5\u770b\u51fa\u57fa\u672c\u7b26\u5408\u6211\u7684\u8981\u6c42\u4e86\uff0c\u884c\u5566\u3002<\/p>\n<p>\u95ee\u9898\u662f\u5982\u679c\u60f3\u8981\u66f4\u52a0\u7cbe\u786e\u4e00\u70b9\uff0c\u8981\u600e\u4e48\u505a\u5462\uff1f<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u8fd9\u4e2a\u4efb\u52a1\u662f\u8981\u6c42\u6bcf\u79d2\u89e6\u53d1\u4e00\u6b21\u3002 \u4e00\u5f00\u59cb\u6211\u5c1d\u8bd5\u7528 Timer \u7684 scheduleAtFixedRate\uff0c\u901a\u8fc7\u7b80\u5355 &hellip; <\/p>\n<p class=\"link-more\"><a href=\"http:\/\/leegorous.net\/blog\/2009\/11\/19\/diy-java-timer\/\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb<span class=\"screen-reader-text\">\u201cJava\u5b9a\u65f6\u5668\u201d<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[104],"tags":[36],"_links":{"self":[{"href":"http:\/\/leegorous.net\/blog\/wp-json\/wp\/v2\/posts\/233"}],"collection":[{"href":"http:\/\/leegorous.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/leegorous.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/leegorous.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/leegorous.net\/blog\/wp-json\/wp\/v2\/comments?post=233"}],"version-history":[{"count":4,"href":"http:\/\/leegorous.net\/blog\/wp-json\/wp\/v2\/posts\/233\/revisions"}],"predecessor-version":[{"id":1068,"href":"http:\/\/leegorous.net\/blog\/wp-json\/wp\/v2\/posts\/233\/revisions\/1068"}],"wp:attachment":[{"href":"http:\/\/leegorous.net\/blog\/wp-json\/wp\/v2\/media?parent=233"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/leegorous.net\/blog\/wp-json\/wp\/v2\/categories?post=233"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/leegorous.net\/blog\/wp-json\/wp\/v2\/tags?post=233"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}