{"id":742,"date":"2023-03-23T21:50:23","date_gmt":"2023-03-23T13:50:23","guid":{"rendered":""},"modified":"2023-03-23T21:59:13","modified_gmt":"2023-03-23T13:59:13","slug":"java9-%e6%96%b0%e5%8a%9f%e8%83%bd","status":"publish","type":"post","link":"https:\/\/bianchenghao6.com\/742.html","title":{"rendered":"Java9 \u65b0\u529f\u80fd"},"content":{"rendered":"<style type=\"text\/css\">\n                    div.bodytext a{color:brown;}\n                <\/style>\n<div class=\"titlebox\">\n<h1>Java9 \u65b0\u529f\u80fd<\/h1>\n<\/div>\n<div class=\"desc\">\n  Oracle\u53d1\u5e03\u4e86Java 9\uff0c\u5176\u4e2d\u5305\u542b\u8bb8\u591a\u65b0\u529f\u80fd\u3002\u5b83\u5305\u62ec\u5bf9Java\u7f16\u7a0b\uff0cJVM\uff0c\u5de5\u5177\u548c\u5e93\u7684\u5404\u79cd\u5347\u7ea7\u3002\u5728\u672c\u6559\u7a0b\u4e2d\uff0c\u6211\u4eec\u5c06\u8ba8\u8bba\u4e0b\u9762\u7ed9\u51fa\u7684\u6240\u6709\u4e3b\u8981\u529f\u80fd\u3002\n<\/div>\n<div class=\"desc\">\n  \u5e73\u53f0\u6a21\u5757\u7cfb\u7edf(Jigsaw\u9879\u76ee)\u3001<br \/>\n \u63a5\u53e3\u79c1\u6709\u65b9\u6cd5\u3001<br \/>\n Java9 try\u589e\u5f3a\u529f\u80fd\u3001<br \/>\n Java9 \u533f\u540d\u5185\u90e8\u7c7b\u6539\u8fdb\u3001<br \/>\n  @SafeVarargs\u6ce8\u91ca\u3001<br \/>\n \u96c6\u5408\u5de5\u5382\u65b9\u6cd5\u3001<br \/>\n \u6d41\u7a0bAPI\u6539\u8fdb\u3001<br \/>\n \u65b0\u7248\u672c\u5b57\u7b26\u4e32\u65b9\u6848\u3001<br \/>\n JShell: Java Shell(REPL)\u3001<br \/>\n \u6a21\u5757\u7cfb\u7edf\u3001<br \/>\n \u63a7\u5236\u9762\u677f\u3001<br \/>\n Stream API\u6539\u8fdb\u3001<br \/>\n Java 9\u4e0b\u5212\u7ebf\u7b49\u7b49\n<\/div>\n<h3 class=\"h3\"> Java\u5e73\u53f0\u6a21\u5757\u7cfb\u7edf(Jigsaw\u9879\u76ee)<\/h3>\n<div class=\"desc\">\n  \u8fd9\u662f\u4e00\u79cd\u65b0\u578b\u7684Java\u7f16\u7a0b\u7ec4\u4ef6\uff0c\u53ef\u7528\u4e8e\u6536\u96c6Java\u4ee3\u7801(\u7c7b\u548c\u5305)\u3002\u8be5\u9879\u76ee\u7684\u4e3b\u8981\u76ee\u6807\u662f\u8f7b\u677e\u5730\u5c06\u5e94\u7528\u7a0b\u5e8f\u7f29\u5c0f\u5230\u5c0f\u578b\u8bbe\u5907\u3002\u5728Java 9\u4e2d\uff0cJDK\u672c\u8eab\u5212\u5206\u4e3a\u4e00\u7ec4\u6a21\u5757\u4ee5\u4f7f\u5176\u66f4\u8f7b\u91cf\u3002\u5b83\u8fd8\u5141\u8bb8\u6211\u4eec\u5f00\u53d1\u6a21\u5757\u5316\u5e94\u7528\u7a0b\u5e8f\u3002\n<\/div>\n<div class=\"desc\">\n  \u6709\u5173\u66f4\u591a\u4fe1\u606f\uff0c\u8bf7\u70b9\u51fb\u5355\u51fb\u6b64\u5904\n<\/div>\n<h3 class=\"h3\">\u63a5\u53e3\u79c1\u6709\u65b9\u6cd5<\/h3>\n<div class=\"desc\">\n  \u5728Java 9\u4e2d\uff0c\u6211\u4eec\u53ef\u4ee5\u5728\u63a5\u53e3\u5185\u90e8\u521b\u5efa\u79c1\u6709\u65b9\u6cd5\u3002\u63a5\u53e3\u5141\u8bb8\u6211\u4eec\u58f0\u660e\u79c1\u6709\u65b9\u6cd5\uff0c\u4ee5\u5e2e\u52a9\u5728<br \/>\n <strong>\u975e\u62bd\u8c61<\/strong>\u65b9\u6cd5\u4e4b\u95f4<br \/>\n <strong>\u5171\u4eab<\/strong>\u901a\u7528\u4ee3\u7801\u3002<br \/>\n <br \/>\u5728Java 9\u4e4b\u524d\uff0c\u5728\u63a5\u53e3\u5185\u521b\u5efa\u79c1\u6709\u65b9\u6cd5\u5bfc\u81f4\u7f16\u8bd1\u65f6\u9519\u8bef\u3002\u6709\u5173\u66f4\u591a\u4fe1\u606f\uff0c<br \/>\n \u8bf7\u5355\u51fb\u6b64\u5904\n<\/div>\n<h3 class=\"h3\">\u5c1d\u8bd5\u4f7f\u7528\u8d44\u6e90<\/h3>\n<div class=\"desc\">\n  \u5f15\u5165\u4e86Java Java 7\u4e2d\u7684<br \/>\n <strong> try-with-resource <\/strong>\u529f\u80fd\uff0c\u53ef\u5728\u4f7f\u7528\u540e\u81ea\u52a8\u5173\u95ed\u8d44\u6e90\u3002<br \/>\n <br \/>\u6362\u53e5\u8bdd\u8bf4\uff0c\u6211\u4eec\u53ef\u4ee5\u8bf4\u4e0d\u9700\u8981\u5173\u95ed\u8d44\u6e90(\u6587\u4ef6\uff0c\u8fde\u63a5\uff0c\u7f51\u7edc\u7b49)\uff0ctry-with-resource\u901a\u8fc7\u4f7f\u7528AutoClosable\u63a5\u53e3\u81ea\u52a8\u5173\u95ed\u3002<br \/>\n <br \/>\u5728Java 7\u4e2d\uff0ctry-with-resources\u6709\u4e00\u4e2a\u5c40\u9650\u6027\uff0c\u8981\u6c42\u8d44\u6e90\u5728\u5176\u5757\u5185\u672c\u5730\u58f0\u660e\u3002<br \/>\n <br \/>\u6709\u5173\u66f4\u591a\u4fe1\u606f\uff0c<br \/>\n \u8bf7\u5355\u51fb\u6b64\u5904\n<\/div>\n<h3>\u533f\u540d\u7c7b\u6539\u8fdb<\/h3>\n<div class=\"desc\">\n  Java 9\u5f15\u5165\u4e86\u4e00\u9879\u65b0\u529f\u80fd\uff0c\u8be5\u529f\u80fd\u4f7f\u6211\u4eec\u53ef\u4ee5\u5c06Diamond\u8fd0\u7b97\u7b26\u4e0e\u533f\u540d\u7c7b\u4e00\u8d77\u4f7f\u7528\u3002\u5728Java 7\u4e2d\uff0c\u4e0d\u5141\u8bb8\u5c06Diamond\u4e0e\u533f\u540d\u7c7b\u4e00\u8d77\u4f7f\u7528\u3002<br \/>\n <br \/>\u5728Java 9\u4e2d\uff0c\u53ea\u8981\u63a8\u65ad\u7c7b\u578b\u662f\u53ef\u8868\u793a\u7684\uff0c\u6211\u4eec\u5c31\u53ef\u4ee5\u5728\u521b\u5efa\u533f\u540d\u5185\u90e8\u7c7b\u65f6\u4f7f\u7528Diamond\u8fd0\u7b97\u7b26\u3002\n<\/div>\n<div class=\"desc\">\n  \u6709\u5173\u66f4\u591a\u4fe1\u606f\uff0c<br \/>\n \u8bf7\u5355\u51fb\u6b64\u5904\n<\/div>\n<h3 class=\"h3\"> Java @SafeVarargs\u6ce8\u91ca<\/h3>\n<div class=\"desc\">\n  \u5b83\u662f\u4e00\u4e2a\u6ce8\u91ca\uff0c\u9002\u7528\u4e8e\u91c7\u7528<br \/>\n <strong> varargs\u53c2\u6570<\/strong>\u7684\u65b9\u6cd5\u6216\u6784\u9020\u51fd\u6570\u3002\u5b83\u7528\u4e8e\u786e\u4fdd\u8be5\u65b9\u6cd5\u4e0d\u4f1a\u5bf9\u5176varargs\u53c2\u6570\u6267\u884c\u4e0d\u5b89\u5168\u7684\u64cd\u4f5c\u3002<br \/>\n <br \/>\u5b83\u5df2\u5305\u542b\u5728Java 7\u4e2d\uff0c\u5e76\u4e14\u53ea\u80fd\u5e94\u7528\u4e8e\n<\/div>\n<p><span class=\"line\">Final\u65b9\u6cd5<\/span><br \/>\n<span class=\"line\">Static\u65b9\u6cd5<\/span><br \/>\n<span class=\"line\">\u6784\u9020\u51fd\u6570<\/span> <\/p>\n<div class=\"desc\">\n  \u6709\u5173\u66f4\u591a\u4fe1\u606f\uff0c<br \/>\n \u8bf7\u5355\u51fb\u6b64\u5904\n<\/div>\n<h3 class=\"h3 \"> Java\u96c6\u5408\u5de5\u5382\u65b9\u6cd5<\/h3>\n<div class=\"desc\">\n  \u5de5\u5382\u65b9\u6cd5\u662f\u9759\u6001\u7c7b\u578b\u7684\u7279\u6b8a\u7c7b\u578b\uff0c\u7528\u4e8e\u521b\u5efa\u96c6\u5408\u7684<br \/>\n <strong>\u4e0d\u53ef\u4fee\u6539\u7684\u5b9e\u4f8b<\/strong>\u3002\u8fd9\u610f\u5473\u7740\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528\u8fd9\u4e9b\u65b9\u6cd5\u6765\u521b\u5efa\u5c11\u91cf\u5143\u7d20\u7684\u5217\u8868\uff0c\u96c6\u5408\u548c\u6620\u5c04\u3002<br \/>\n <br \/>\u5b83\u662f\u4e0d\u53ef\u4fee\u6539\u7684\uff0c\u56e0\u6b64\u6dfb\u52a0\u65b0\u5143\u7d20\u5c06\u629b\u51fa<br \/>\n <strong> java.lang.UnsupportedOperationException <\/strong>\n<\/div>\n<div class=\"desc\">\n  \u6709\u5173\u66f4\u591a\u4fe1\u606f\uff0c<br \/>\n \u8bf7\u5355\u51fb\u6b64\u5904\n<\/div>\n<h3 class=\"h3\"> Java\u6d41\u7a0bAPI\u6539\u8fdb<\/h3>\n<div class=\"desc\">\n  Java\u5728Java 9\u7248\u672c\u4e2d\u6539\u8fdb\u4e86\u5176\u6d41\u7a0bAPI\uff0c\u8be5\u7248\u672c\u6709\u52a9\u4e8e\u7ba1\u7406\u548c\u63a7\u5236\u64cd\u4f5c\u7cfb\u7edf\u8fdb\u7a0b\u3002<br \/>\n <br \/>\u5728\u8f83\u65e9\u7684\u7248\u672c\u4e2d\uff0c\u5b83\u7684\u7ba1\u7406\u548c\u63a7\u5236\u5f88\u590d\u6742\u3002\u4f7f\u7528Java\u7f16\u7a0b\u7684\u64cd\u4f5c\u7cfb\u7edf\u8fdb\u7a0b\u3002\u73b0\u5728\uff0c\u6dfb\u52a0\u4e86\u65b0\u7684\u7c7b\u548c\u63a5\u53e3\u6765\u6267\u884c\u6b64\u4efb\u52a1\u3002<br \/>\n <br \/>\u6709\u5173\u66f4\u591a\u4fe1\u606f\uff0c\u8bf7\u5355\u51fb\u8fd9\u91cc\n<\/div>\n<h3 class=\"h3\"> Java\u65b0\u7248\u672c\u5b57\u7b26\u4e32\u65b9\u6848<\/h3>\n<div class=\"desc\">\n  Java\u7248\u672c\u5b57\u7b26\u4e32\u662f\u4e00\u79cd\u5305\u542b\u7248\u672c\u7279\u5b9a\u4fe1\u606f\u7684\u683c\u5f0f\u3002\u6b64\u7248\u672c\u5b57\u7b26\u4e32\u5305\u62ec\u4e3b\u8981\u7248\u672c\uff0c\u6b21\u8981\u7248\u672c\uff0c\u5b89\u5168\u7248\u672c\u548c\u8865\u4e01\u66f4\u65b0\u7248\u672c\u3002<br \/>\n <br \/>\u5728Java 9\u4e2d\uff0c\u5f15\u5165\u4e86\u65b0\u7684\u7248\u672c\u5b57\u7b26\u4e32\u65b9\u6848\u3002\u6709\u5173\u66f4\u591a\u4fe1\u606f\uff0c<br \/>\n \u8bf7\u5355\u51fb\u6b64\u5904\u3002\n<\/div>\n<h3 class=\"h3\"> JShell: Java Shell(REPL)<\/h3>\n<div class=\"desc\">\n  \u8fd9\u662f\u4e00\u4e2a\u4ea4\u4e92\u5f0fJava Shell\u5de5\u5177\uff0c\u5b83\u4f7f\u6211\u4eec\u80fd\u591f\u4eceShell\u4e2d\u6267\u884cJava\u4ee3\u7801\u5e76\u7acb\u5373\u663e\u793a\u8f93\u51fa\u3002 JShell\u662fREPL(\u8bfb\u53d6\u8bc4\u4f30\u6253\u5370\u5faa\u73af)\u5de5\u5177\uff0c\u53ef\u4ece\u547d\u4ee4\u884c\u8fd0\u884c\u3002\u5982\u679c\u6211\u4eec\u60f3\u6d4b\u8bd5\u6211\u4eec\u7684\u4e1a\u52a1\u903b\u8f91\u5e76\u7acb\u5373\u83b7\u5f97\u7ed3\u679c\uff0c\u90a3\u662f\u6709\u76ca\u7684\u3002\u6709\u5173\u66f4\u591a\u4fe1\u606f\uff0c\u8bf7\u5355\u51fb\u6b64\u5904\n<\/div>\n<h3 class=\"h3\"> Java 9\u63a7\u5236\u9762\u677f<\/h3>\n<div class=\"desc\">\n  Java\u63a7\u5236\u9762\u677f\u7528\u4e8e\u63a7\u5236\u5d4c\u5165\u5728\u6d4f\u89c8\u5668\u4e2d\u7684Java\u5e94\u7528\u7a0b\u5e8f\u3002\u8be5\u63a7\u5236\u9762\u677f\u4fdd\u7559\u7528\u4e8e\u7ba1\u7406\u6d4f\u89c8\u5668\u4e2d\u5d4c\u5165\u7684Java\u5e94\u7528\u7a0b\u5e8f\u7684\u8bbe\u7f6e\u3002<br \/>\n <br \/>\u5728Java 9\u4e2d\uff0c\u63a7\u5236\u9762\u677f\u88ab\u91cd\u5199\u4e3aJavaFX\u5e94\u7528\u7a0b\u5e8f\uff0c\u5e76\u4e14\u5b58\u50a8\u4f4d\u7f6e\u5df2\u66f4\u6539\u3002\u6709\u5173\u66f4\u591a\u4fe1\u606f\uff0c<br \/>\n \u8bf7\u5355\u51fb\u6b64\u5904\u3002\n<\/div>\n<h3 class=\"h3\"> Java 9 Stream API\u6539\u8fdb<\/h3>\n<div class=\"desc\">\n  \u5728Java 9\u4e2d\uff0cStream API\u8fdb\u884c\u4e86\u6539\u8fdb\uff0c\u5e76\u5c06\u65b0\u65b9\u6cd5\u6dfb\u52a0\u5230Stream\u63a5\u53e3\u3002\u6dfb\u52a0\u4e86TakeWhile\uff0cdropWhile\u548cofNullable\u4ee5\u53ca\u4e00\u4e2a\u91cd\u8f7d\u7684\u8fed\u4ee3\u65b9\u6cd5\uff0c\u4ee5\u5bf9\u6d41\u5143\u7d20\u6267\u884c\u64cd\u4f5c\u3002\u6709\u5173\u66f4\u591a\u4fe1\u606f\uff0c<br \/>\n \u8bf7\u5355\u51fb\u6b64\u5904\u3002\n<\/div>\n<h3 class=\"h3\">\u5b89\u88c5\u7a0b\u5e8f\u589e\u5f3a\u5bf9\u4e8eMicrosoft Windows <\/h3>\n<div class=\"desc\">\n  Java 9\u5305\u62ecMicrosoft Windows\u5b89\u88c5\u7a0b\u5e8f\u7684\u6539\u8fdb\u7248\u672c\u5e76\u6dfb\u52a0\u4e86\u4ee5\u4e0b\u529f\u80fd\u3002<br \/>\n <br \/>\u6b64\u5b89\u88c5\u7a0b\u5e8f\u4f7f\u6211\u4eec\u53ef\u4ee5\u542f\u7528\u548c\u7981\u7528Web\u90e8\u7f72\u3002\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u9009\u62e9\"\u81ea\u5b9a\u4e49\u8bbe\u7f6e\"\u6765\u542f\u7528Web\u90e8\u7f72\uff0c\u5b89\u88c5\u5e76\u5355\u51fb\u5b89\u88c5\u7a0b\u5e8f\u7684\u6b22\u8fce\u9875\u9762\u4e2d\u7684\u590d\u9009\u6846\u3002\n<\/div>\n<h3 class=\"h3\"> macOS\u7684\u5b89\u88c5\u7a0b\u5e8f\u589e\u5f3a\u529f\u80fd<\/h3>\n<div class=\"desc\">\n  \u5305\u62ecJava 9 macOS\u5b89\u88c5\u7a0b\u5e8f\u5177\u6709\u4ee5\u4e0b\u529f\u80fd\u3002\n<\/div>\n<table>\n<tbody>\n<tr>\n<td>\u529f\u80fd<\/td>\n<td>\u8bf4\u660e<\/td>\n<\/tr>\n<tr>\n<td> CPU\u7248\u672c\u53ef\u7528\u6027<\/td>\n<td>\u5b83\u5728\u5378\u8f7d\u5f53\u524dCPU\u7248\u672c\u540e\u63d0\u4f9b\u6709\u5173\u4e0b\u4e00\u4e2aCPU\u53ef\u7528\u6027\u7684\u901a\u77e5\u3002<\/td>\n<\/tr>\n<tr>\n<td>\u7528\u6237\u4f53\u9a8c<\/td>\n<td>\u5b83\u5728\u66f4\u65b0JRE\u65f6\u589e\u5f3a\u4e86\u7528\u6237\u4f53\u9a8c\u3002<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h3 class=\"h3\">\u6dfb\u52a0\u66f4\u591a\u8bca\u65ad\u547d\u4ee4<\/h3>\n<div class=\"desc\">\n  Java 9\u6dfb\u52a0\u4e86\u4e00\u4e9b\u65b0\u547d\u4ee4\u6765\u6539\u5584\u8bca\u65ad\u95ee\u9898\u3002\u8fd9\u4e9b\u8bca\u65ad\u547d\u4ee4\u7528\u4e8e\u8bca\u65adHotspot\u548cJDK\u3002<br \/>\n <br \/> Java jcmd\u5b9e\u7528\u7a0b\u5e8f\u53ef\u7528\u4e8e\u5c06\u8bca\u65ad\u547d\u4ee4\u8bf7\u6c42\u53d1\u9001\u5230\u6b63\u5728\u8fd0\u884c\u7684Java\u865a\u62df\u673a(JVM)\u3002\n<\/div>\n<h3 class=\"h3 \">\u5220\u9664\u542f\u52a8\u65f6JRE\u7248\u672c\u9009\u62e9<\/h3>\n<div class=\"desc\">\n  Java 9\u5df2\u5728\u542f\u52a8\u65f6\u5220\u9664\u4e86JRE(Java\u8fd0\u884c\u65f6\u73af\u5883)\u7248\u672c\u9009\u62e9\u3002\u5982\u4eca\uff0c\u73b0\u4ee3\u5e94\u7528\u7a0b\u5e8f\u5177\u6709\u81ea\u5df1\u7684\u6d3b\u52a8\u5b89\u88c5\u7a0b\u5e8f\uff0c\u8be5\u5b89\u88c5\u7a0b\u5e8f\u8fdb\u4e00\u6b65\u5305\u542b\u7ba1\u7406JRE\u7684\u65b9\u6cd5\u3002\u8fd9\u5c31\u662f\u4e3a\u4ec0\u4e48\u5220\u9664JRE\u7248\u672c\u7684\u539f\u56e0\u3002\n<\/div>\n<h3 class=\"h3\">\u5220\u9664JVM TI hprof\u4ee3\u7406<\/h3>\n<div class=\"desc\">\n  Java 9\u5df2\u4ece\u73b0\u6709\u7684JDK\u4e2d\u5220\u9664\u4e86hprof\u3002\u5b83\u4e0d\u6253\u7b97\u6210\u4e3a\u751f\u4ea7\u5de5\u5177\u3002 hprof\u4ee3\u7406\u7684\u4e00\u4e9b\u529f\u80fd\u66f4\u597d\u7684\u66ff\u4ee3\u4e86\u66f4\u597d\u7684\u9009\u62e9\u3002\n<\/div>\n<h3 class=\"h3\">\u5220\u9664Jhat\u5de5\u5177<\/h3>\n<div class=\"desc\">\n  Java\u5df2\u5728\u5176\u65b0\u53d1\u884c\u7248JDK 9\u4e2d\u5220\u9664\u4e86jhat\u5de5\u5177\u3002\n<\/div>\n<h3 class=\"h3\">\u9a8c\u8bc1JVM\u547d\u4ee4\u884c\u6807\u5fd7\u53c2\u6570<\/h3>\n<div class=\"desc\">\n  Java\u4f1a\u9a8c\u8bc1\u6240\u6709\u6570\u5b57JVM\u547d\u4ee4\u7684\u53c2\u6570\u884c\u6807\u5fd7\u4ee5\u907f\u514d\u5931\u8d25\u3002\u5982\u679c\u53c2\u6570\u65e0\u6548\u6216\u8d85\u51fa\u8303\u56f4\uff0c\u5219\u4f1a\u663e\u793a\u4e00\u6761\u9002\u5f53\u7684\u9519\u8bef\u6d88\u606f\u3002<br \/>\n <br \/>\u5df2\u7ecf\u5bf9\u8303\u56f4\u548c\u53ef\u9009\u503c\u8981\u6c42\u6570\u503c\u7684\u7ea6\u675f\u8fdb\u884c\u4e86\u68c0\u67e5\u3002\n<\/div>\n<h3 class=\"h3\"> jlink: Java\u94fe\u63a5\u5668<\/h3>\n<div class=\"desc\">\n  jlink\u662f\u4e00\u79cd\u53ef\u7528\u4e8e\u5c06\u4e00\u7ec4\u6a21\u5757\u7ec4\u88c5\u5230\u8fd0\u884c\u65f6\u6620\u50cf\u4e2d\u7684\u5de5\u5177\u3002<br \/>\n <br \/>\u94fe\u63a5\u65f6\u95f4\u662f\u7f16\u8bd1\u548c\u8fd0\u884c\u65f6\u4e4b\u95f4\u7684\u4e00\u4e2a\u9636\u6bb5\uff0cjlink\u5728\u6b64\u5904\u7528\u4e8e\u5c06\u6a21\u5757\u94fe\u63a5\u548c\u7ec4\u88c5\u5230\u8fd0\u884c\u65f6\u56fe\u50cf\u3002\n<\/div>\n<h3 class=\"h3\">\u6570\u636e\u62a5\u4f20\u8f93\u5c42\u5b89\u5168\u6027(DTLS)<\/h3>\n<div class=\"desc\">\n  DTLS\u662f\u7528\u4e8e\u5728\u6570\u636e\u62a5\u4e0a\u6784\u9020TLS\u7684\u534f\u8bae\u3002 JSSE(Java\u5b89\u5168\u5957\u63a5\u5b57\u6269\u5c55)API\u652f\u6301DTLS\u534f\u8bae\u4ee5\u53ca1.0\u548c1.2\u7248\u672c\u3002<br \/>\n <br \/> TLS\u534f\u8bae\u9700\u8981\u4e00\u4e2aTCP\uff0c\u56e0\u6b64\u4e0d\u80fd\u7528\u4e8e\u4fdd\u62a4\u4e0d\u53ef\u9760\u7684\u6570\u636e\u62a5\u6d41\u91cf\u3002\n<\/div>\n<h3 class=\"h3\"> TLS\u5e94\u7528\u5c42\u534f\u8bae\u534f\u5546\u6269\u5c55<\/h3>\n<div class=\"desc\">\n  \u6b64\u6269\u5c55\u5141\u8bb8TLS\u8fde\u63a5\u4e2d\u7684\u5ba2\u6237\u7aef\u548c\u670d\u52a1\u5668\u534f\u5546\u5e94\u7528\u7a0b\u5e8f\u534f\u8bae\u3002\u5ba2\u6237\u7aef\u670d\u52a1\u5668\u8fdb\u884c\u901a\u4fe1\u5e76\u76f8\u4e92\u901a\u77e5\u6709\u5173\u652f\u6301\u7684\u5e94\u7528\u7a0b\u5e8f\u534f\u8bae\u3002\u5728TLS\u63e1\u624b\u4e2d\u5b8c\u6210\u7684\u5e94\u7528\u7a0b\u5e8f\u534f\u8bae\u534f\u5546\u3002\n<\/div>\n<h3 class=\"h3\">\u7528\u4e8eTLS\u7684OCSP\u88c5\u8ba2<\/h3>\n<div class=\"desc\">\n  OCSP(\u5728\u7ebf\u8bc1\u4e66\u72b6\u6001\u534f\u8bae)\u6709\u52a9\u4e8e\u901a\u8fc7TLS\u8fde\u63a5\u7684\u670d\u52a1\u5668\u8fdb\u884c\u68c0\u67e5\u64a4\u9500\u7684X.509\u8bc1\u4e66\u64a4\u9500\u3002\u5728TLS\u63e1\u624b\u670d\u52a1\u5668\u671f\u95f4\uff0c\u8bf7\u4e0eOCSP\u54cd\u5e94\u8005\u8054\u7cfb\u4ee5\u83b7\u53d6\u8bc1\u4e66\u3002\u7136\u540e\uff0c\u670d\u52a1\u5668\u5c06\u64a4\u9500\u4fe1\u606f\u88c5\u8ba2\u5230\u5ba2\u6237\u7aef\u7684\u8bc1\u4e66\u4e2d\u3002\n<\/div>\n<h3 class=\"h3\">\u57fa\u4e8eDRBG\u7684SecureRandom\u5b9e\u73b0<\/h3>\n<div class=\"desc\">\n  Java 9\u5305\u62ecDRBG(\u786e\u5b9a\u6027\u968f\u673a\u4f4d\u751f\u6210\u5668)\u673a\u5236\u7684\u529f\u80fd\u3002\u6309\u7167SecureRandom API\u4e2dNIST SP 800-90Ar1\u7684\u89c4\u5b9a\u8fdb\u884c\u3002<br \/>\n <br \/> DRBG\u673a\u5236\u4f7f\u7528\u4e86\u50cfSHA-512\u548cAES-256\u4e00\u6837\u5f3a\u5927\u7684\u73b0\u4ee3\u7b97\u6cd5\u3002\u8fd9\u4e9b\u673a\u5236\u4e2d\u7684\u6bcf\u4e00\u79cd\u90fd\u53ef\u4ee5\u914d\u7f6e\u4e3a\u5177\u6709\u4e0d\u540c\u7684\u5b89\u5168\u6027\u5f3a\u5ea6\u548c\u529f\u80fd\uff0c\u4ee5\u5339\u914d\u7528\u6237\u8981\u6c42\u3002\n<\/div>\n<h3 class=\"h3\">\u7981\u7528SHA-1\u8bc1\u4e66<\/h3>\n<div class=\"desc\">\n  JDK\u7684\u5b89\u5168\u6027\u914d\u7f6e\u5f97\u5230\u4e86\u6539\u8fdb\u3002\u5b83\u63d0\u4f9b\u4e86\u66f4\u7075\u6d3b\u7684\u673a\u5236\u5177\u6709\u57fa\u4e8eSHA-1\u7b7e\u540d\u7684\u53ef\u7528X.509\u8bc1\u4e66\u3002<br \/>\n <br \/> jdk.certpath.disabledAlgorithms\u5b89\u5168\u6027\u5c5e\u6027\u5f97\u5230\u4e86\u589e\u5f3a\uff0c\u5e76\u589e\u52a0\u4e86\u4e00\u4e9b\u65b0\u7684\u7ea6\u675f\uff0c\u4ece\u800c\u53ef\u4ee5\u66f4\u597d\u5730\u63a7\u5236\u53ef\u4ee5\u7981\u7528\u7684\u8bc1\u4e66\u7684\u7c7b\u578b\u3002\n<\/div>\n<h3 class=\"h3\">\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u521b\u5efaPKCS12\u5bc6\u94a5\u5e93<\/h3>\n<div class=\"desc\">\n  \u9ed8\u8ba4\u5bc6\u94a5\u5e93\u7c7b\u578b\u5df2\u4eceJKS\u4fee\u6539\u4e3aPKCS12\u3002 PKCS\u662f\u7528\u4e8e\u5b58\u50a8\u5bc6\u7801\u5bc6\u94a5\u7684\u53ef\u6269\u5c55\uff0c\u6807\u51c6\u4e14\u53d7\u5e7f\u6cdb\u652f\u6301\u7684\u683c\u5f0f\u3002\u5b83\u901a\u8fc7\u5b58\u50a8\u79c1\u94a5\uff0c\u53d7\u4fe1\u4efb\u7684\u516c\u94a5\u8bc1\u4e66\u7b49\u6765\u63d0\u9ad8\u673a\u5bc6\u6027\u3002\u6b64\u529f\u80fd\u8fd8\u4e3a\u4e0e\u652f\u6301PKCS12\u7684\u5176\u4ed6\u7cfb\u7edf(\u4f8b\u5982Mozilla\uff0cMicrosoft\u7684Internet Explorer\u548cOpenSSL)\u8fdb\u884c\u4e92\u64cd\u4f5c\u63d0\u4f9b\u4e86\u673a\u4f1a\u3002\n<\/div>\n<h3 class=\"h3\"> SHA-3\u54c8\u5e0c\u7b97\u6cd5<\/h3>\n<div class=\"desc\">\n  \u65b0\u7684Java\u7248\u672c\u652f\u6301SHA-3\u52a0\u5bc6\u54c8\u5e0c\u51fd\u6570\u3002<br \/>\n <br \/> java.security.MessageDigest API\u652f\u6301\u591a\u79cd\u7b97\u6cd5\uff0c\u4f8b\u5982: SHA3-224\uff0cSHA3-256\uff0c SHA3\u200b\u200b-384\u548cSHA3-512\u3002<br \/>\n <br \/>\u4ee5\u4e0b\u63d0\u4f9b\u7a0b\u5e8f\u652f\u6301SHA-3\u7b97\u6cd5\u589e\u5f3a\u529f\u80fd:\n<\/div>\n<p><span class=\"line\"> SUN\u63d0\u4f9b\u7a0b\u5e8f: SHA3-224\uff0cSHA3-256\uff0cSHA3-384\u548cSHA3-512 <\/span><br \/>\n<span class=\"line\"> OracleUcrypto\u63d0\u4f9b\u7a0b\u5e8f: Solaris 12.0\u652f\u6301\u7684SHA-3\u6458\u8981<\/span> <\/p>\n<h3 class=\"h3\">\u5f03\u7528Java\u63d2\u4ef6<\/h3>\n<div class=\"desc\">\n  JDK 9\u4e2d\u5f03\u7528\u4e86Java\u63d2\u4ef6\u548capplet\u6280\u672f\u3002\u5728\u5c06\u6765\u7684\u7248\u672c\u4e2d\uff0c\u8fd9\u4e9b\u6280\u672f\u5c06\u88ab\u5220\u9664\u3002<br \/>\n <br \/>\u9700\u8981Java Plug-in\u624d\u80fd\u5728Web\u6d4f\u89c8\u5668\u4e2d\u8fd0\u884capplet\u548cJavaFX\u5e94\u7528\u7a0b\u5e8f\u3002\u5efa\u8bae\u5c06\u5e94\u7528\u7a0b\u5e8f\u91cd\u5199\u4e3aJava Web\u5e94\u7528\u7a0b\u5e8f\u3002\n<\/div>\n<h3 class=\"h3\">\u589e\u5f3a\u7684Java\u63a7\u5236\u9762\u677f<\/h3>\n<div class=\"desc\">\n  Java\u63a7\u5236\u9762\u677f\u5df2\u5f97\u5230\u6539\u8fdb\uff0c\u4fe1\u606f\u66f4\u6613\u4e8e\u67e5\u627e\uff0c\u641c\u7d22\u5b57\u6bb5\u662f\u53ef\u7528\u548c\u6a21\u5f0f\u5bf9\u8bdd\u6846\u4e0d\u518d\u4f7f\u7528\u3002\u8bf7\u6ce8\u610f\uff0c\u67d0\u4e9b\u9009\u9879\u7684\u4f4d\u7f6e\u4e0eJava\u63a7\u5236\u9762\u677f\u7684\u65e9\u671f\u7248\u672c\u6709\u6240\u4e0d\u540c\u3002\n<\/div>\n<h3 class=\"h3\">\u6a21\u5757\u5316Java\u5e94\u7528\u7a0b\u5e8f\u6253\u5305<\/h3>\n<div class=\"desc\">\n  Java\u65b0\u7248\u672c\u5c06Project Jigsaw\u4e2d\u7684\u529f\u80fd\u96c6\u6210\u5230Java Packager\uff0c\u5305\u62ec\u6a21\u5757\u8bc6\u522b\u548c\u81ea\u5b9a\u4e49\u8fd0\u884c\u65f6\u521b\u5efa\u3002<br \/>\n <br \/>\u6211\u4eec\u53ef\u4ee5\u4f7f\u7528jlink\u5de5\u5177\u521b\u5efa\u8f83\u5c0f\u7684\u7a0b\u5e8f\u5305\u3002\n<\/div>\n<h3 class=\"h3\">\u7b80\u5316\u7684Doclet API <\/h3>\n<div class=\"desc\">\n  \u65e7\u7684Doclet API\u88ab\u65b0\u7684\u7b80\u5316\u7684API\u6240\u66ff\u4ee3\uff0c\u8be5API\u53ef\u4ee5\u5229\u7528\u5176\u4ed6\u73b0\u6709\u7684\u6807\u51c6API\u3002\u5728Java 9\u4e2d\uff0c\u6807\u51c6doclet\u5df2\u88ab\u91cd\u5199\u4e3a\u4f7f\u7528\u65b0\u7684Doclet API\u3002\n<\/div>\n<h3 class=\"h3\">\u7f16\u8bd1\u5668\u63a7\u4ef6<\/h3>\n<div class=\"desc\">\n  \u73b0\u5728\uff0c\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u7f16\u8bd1\u5668\u6307\u4ee4\u9009\u9879\u6765\u63a7\u5236JVM\u7f16\u8bd1\u3002\u63a7\u5236\u7ea7\u522b\u662f\u8fd0\u884c\u65f6\u53ef\u7ba1\u7406\u7684\u548c\u7279\u5b9a\u4e8e\u65b9\u6cd5\u7684\u3002\u7f16\u8bd1\u5668\u63a7\u4ef6\u53d6\u4ee3\u4e86CompileCommand\uff0c\u5e76\u4e14\u5411\u540e\u517c\u5bb9\u3002\n<\/div>\n<h3 class=\"h3\">\u5206\u6bb5\u7684\u4ee3\u7801\u7f13\u5b58<\/h3>\n<div class=\"desc\">\n  \u4ee3\u7801\u7f13\u5b58\u5206\u4e3a\u4e0d\u540c\u7684\u6bb5\u3002\u6bcf\u4e2a\u6bb5\u90fd\u662f\u7f16\u8bd1\u540e\u7684\u4ee3\u7801\uff0c\u53ef\u4ee5\u63d0\u9ad8\u6027\u80fd\u5e76\u5b9e\u73b0\u53ef\u6269\u5c55\u6027\u3002\n<\/div>\n<h3 class=\"h3\">\u7edf\u4e00\u7684JVM\u65e5\u5fd7\u8bb0\u5f55<\/h3>\n<div class=\"desc\">\n  Java\u65b0\u7248\u672c\u4e3aJVM\u7684\u6240\u6709\u7ec4\u4ef6\u5f15\u5165\u4e86\u901a\u7528\u7684\u65e5\u5fd7\u8bb0\u5f55\u7cfb\u7edf\u3002\n<\/div>\n<h3 class=\"h3\">\u5220\u9664JDK 8\u4e2d\u4e0d\u63a8\u8350\u4f7f\u7528\u7684GC\u7ec4\u5408<\/h3>\n<div class=\"desc\">\n  JDK 9\u4e2d\u5df2\u5220\u9664\u4e86\u4e0d\u63a8\u8350\u4f7f\u7528\u7684\u5783\u573e\u6536\u96c6\u5668\u7ec4\u5408\u3002\u4ee5\u4e0b\u662f\u65b0\u7248\u672c\u4e2d\u4e0d\u652f\u6301\u7684\u5783\u573e\u6536\u96c6\u5668\u7ec4\u5408\u3002\n<\/div>\n<p><span class=\"line\"> DefNew + CMS <\/span><br \/>\n<span class=\"line\"> ParNew + SerialOld <\/span><br \/>\n<span class=\"line\">\u589e\u91cfCMS <\/span> <\/p>\n<h3 class=\"h3\">\u7edf\u4e00\u7684GC\u65e5\u5fd7\u8bb0\u5f55<\/h3>\n<div class=\"desc\">\n  \u4f7f\u7528\u7edf\u4e00\u7684JVM\u65e5\u5fd7\u8bb0\u5f55\u6846\u67b6\u91cd\u65b0\u5b9e\u73b0\u5783\u573e\u6536\u96c6\u65e5\u5fd7\u8bb0\u5f55\u3002\n<\/div>\n<h3 class=\"h3\">\u5f03\u7528\u5e76\u53d1\u6807\u8bb0\u626b\u63cf(CMS)\u5783\u573e\u6536\u96c6\u5668<\/h3>\n<div class=\"desc\">\n  \u4e0d\u5efa\u8bae\u4f7f\u7528\u5e76\u884c\u6807\u8bb0\u626b\u63cf(CMS)\u5783\u573e\u6536\u96c6\u5668\u3002\u5728\u547d\u4ee4\u884c\u4e0a\u8bf7\u6c42\u65f6\uff0c\u5b83\u5c06\u53d1\u51fa\u8b66\u544a\u6d88\u606f\u3002 Garbage-First(G1)\u5783\u573e\u6536\u96c6\u5668\u65e8\u5728\u66ff\u4ee3\u5927\u591a\u6570CMS\u3002\n<\/div>\n<h3 class=\"h3\">\u6d41\u7a0bAPI\u66f4\u65b0<\/h3>\n<div class=\"desc\">\n  \u6d41\u7a0bAPI\u7684\u65b9\u6cd5\u548c\u65b9\u6cd5\u5f97\u5230\u4e86\u6539\u8fdb\u63a5\u53e3\u3002\u8be5API\u5904\u7406\u64cd\u4f5c\u7cfb\u7edf\u8fdb\u7a0b\u3002<br \/>\n <br \/>ProcessHandle\u7c7b\u7528\u4e8e\u83b7\u53d6\u8fdb\u7a0b\u7684\u672c\u673a\u8fdb\u7a0bID\uff0c\u53c2\u6570\uff0c\u547d\u4ee4\uff0c\u5f00\u59cb\u65f6\u95f4\uff0c\u7d2f\u79ef\u7684CPU\u65f6\u95f4\uff0c\u7528\u6237\uff0c\u7236\u8fdb\u7a0b\u548c\u540e\u4ee3\u3002\n<\/div>\n<h3 class=\"h3\">\u7d27\u51d1\u7684\u5b57\u7b26\u4e32<\/h3>\n<div class=\"desc\">\n  \u5728\u65b0\u7248\u672c\u4e2d\uff0cJava\u5bf9\u5b57\u7b26\u4e32\u4f7f\u7528\u4e86\u66f4\u8282\u7701\u7a7a\u95f4\u7684\u5185\u90e8\u8868\u793a\u5f62\u5f0f\u3002\u5728\u4ee5\u524d\u7684\u7248\u672c\u4e2d\uff0c\u5b57\u7b26\u4e32\u5b58\u50a8\u5728char\u6570\u7ec4\u4e2d\uff0c\u6bcf\u4e2a\u5b57\u7b26\u5360\u7528\u4e24\u4e2a\u5b57\u8282\u3002\u73b0\u5728\uff0c\u5b57\u7b26\u4e32\u7684\u65b0\u5185\u90e8\u8868\u793a\u5f62\u5f0f\u662f\u5b57\u8282\u7c7b\u3002\n<\/div>\n<h3 class=\"h3\">\u5e73\u53f0\u8bb0\u5f55API\u548c\u670d\u52a1<\/h3>\n<div class=\"desc\">\n  java.util.logging API\u53ef\u5e2e\u52a9\u8bb0\u5f55\u6d88\u606f\uff0c\u4ee5\u53ca\u9762\u5411\u6d88\u8d39\u8005\u7684\u670d\u52a1\u63a5\u53e3\u3002\u5e94\u7528\u7a0b\u5e8f\u6216\u5e93\u53ef\u4ee5\u63d0\u4f9b\u6b64\u670d\u52a1\u7684\u5b9e\u73b0\uff0c\u4ee5\u5c06\u6d88\u606f\u8bb0\u5f55\u5230\u8bb0\u5f55\u6846\u67b6\u3002\u5982\u679c\u6ca1\u6709\u63d0\u4f9b\u5b9e\u73b0\uff0c\u5b83\u5c06\u4f7f\u7528\u9ed8\u8ba4\u5b9e\u73b0\u3002\n<\/div>\n<h3 class=\"h3\">\u66f4\u591a\u5e76\u53d1\u66f4\u65b0<\/h3>\n<div class=\"desc\">\n  \u66f4\u591a\u5e76\u53d1\u66f4\u65b0\u5df2\u6dfb\u52a0\u5230JDK9\u3002\u8fd9\u4e9b\u66f4\u65b0\u662f\u6539\u8fdb\u7684CompletableFuture API\u548c\u53ef\u4e92\u64cd\u4f5c\u7684\u53d1\u5e03-\u8ba2\u9605\u6846\u67b6\u3002\n<\/div>\n<h3 class=\"h3\"> XML\u76ee\u5f55<\/h3>\n<div class=\"desc\">\n  \u6dfb\u52a0\u4e86\u6807\u51c6XML\u76ee\u5f55API\uff0c\u8be5API\u652f\u6301\u7ec4\u7ec7OASIS(\u7ed3\u6784\u5316\u4fe1\u606f\u6807\u51c6)XML\u76ee\u5f551.1\u7248\u3002\u8be5API\u7531\u53ef\u4ee5\u7528\u4f5cJAXP\u5904\u7406\u5668\u5185\u5728\u51fd\u6570\u7684catalog-resolver\u7ec4\u6210\u3002\n<\/div>\n<h3 class=\"h3\">\u96c6\u5408\u7684\u4fbf\u6377\u5de5\u5382\u65b9\u6cd5<\/h3>\n<div class=\"desc\">\n  \u6b64\u529f\u80fd\u4f7f\u521b\u5efa\u5b9e\u4f8b\u66f4\u52a0\u5bb9\u6613\u548c\u5c11\u91cf\u5143\u7d20\u7684\u5730\u56fe\u96c6\u3002\u4e00\u4e9b\u65b0\u65b9\u6cd5\u5df2\u6dfb\u52a0\u5230\"\u5217\u8868\"\uff0c\"\u8bbe\u7f6e\"\u548c\"\u6620\u5c04\"\u4ee5\u521b\u5efa\u4e0d\u53ef\u53d8\u5b9e\u4f8b\u3002\u4f8b\u5982:<br \/>\n <br \/> Set<br \/>\n <string><br \/>\n   \u5b57\u6bcd= Set.of(1\u30012\u30013);<br \/>\n <\/string>\n<\/div>\n<h3 class=\"h3\">\u589e\u5f3a\u5f03\u7528<\/h3>\n<div class=\"desc\">\n  @\u6539\u8fdb\u4e86\u4e0d\u63a8\u8350\u4f7f\u7528\u7684\u6ce8\u91ca\uff0c\u4ee5\u63d0\u4f9b\u6709\u5173API\u7684\u72b6\u6001\u548c\u9884\u671f\u5904\u7f6e\u7684\u66f4\u597d\u4fe1\u606f\u3002\u6dfb\u52a0\u4e86\u4ee5\u4e0b\u65b0\u5143\u7d20\u3002\n<\/div>\n<p><span class=\"line\"> <strong> @Deprecated(forRemoval = true)<\/strong>: \u8868\u660e\u8be5API\u5c06\u4ece\u5c06\u6765\u7684Java\u7248\u672c\u4e2d\u5220\u9664\u3002<\/span><br \/>\n<span class=\"line\"> <strong> @Deprecated(since =\"version\"): <\/strong>: \u5b83\u5305\u542bJava SE\u7248\u672c\u5b57\u7b26\u4e32\uff0c\u8be5\u5b57\u7b26\u4e32\u6307\u793aJava 9\u7684API\u7248\u672c\u5df2\u5f03\u7528\u3002<\/span> <\/p>\n<h3 class=\"h3\">\u81ea\u65cb\u7b49\u5f85\u63d0\u793a<\/h3>\n<div class=\"desc\">\n  \u5b83\u4f7fJava\u4ee3\u7801\u80fd\u591f\u901a\u77e5\u81ea\u65cb\u5faa\u73af\u6b63\u5728\u6267\u884c\u3002\u81ea\u65cb\u5faa\u73af\u53cd\u590d\u68c0\u67e5\u6761\u4ef6\u662f\u5426\u4e3a\u771f\uff0c\u4f8b\u5982\u4f55\u65f6\u53ef\u4ee5\u83b7\u53d6\u9501\uff0c\u7136\u540e\u53ef\u4ee5\u5b89\u5168\u5730\u6267\u884c\u4e00\u4e9b\u8ba1\u7b97\uff0c\u7136\u540e\u91ca\u653e\u9501\u3002\u8be5API\u4ec5\u4ec5\u662f\u63d0\u793a\uff0c\u4e0d\u5305\u542b\u8bed\u4e49\u884c\u4e3a\u8981\u6c42\u3002\n<\/div>\n<h3 class=\"h3\">\u8fc7\u6ee4\u4f20\u5165\u7684\u5e8f\u5217\u5316\u6570\u636e<\/h3>\n<div class=\"desc\">\n  \u5b83\u6709\u52a9\u4e8e\u8fc7\u6ee4\u5bf9\u8c61\u5e8f\u5217\u5316\u6570\u636e\u7684\u4f20\u5165\u6d41\u7684\u65e5\u671f\u3002\u4ee5\u63d0\u9ad8\u9c81\u68d2\u6027\u548c\u5b89\u5168\u6027\u3002\u5bf9\u8c61\u5e8f\u5217\u5316\u5ba2\u6237\u7aef\u53ef\u4ee5\u66f4\u8f7b\u677e\u5730\u9a8c\u8bc1\u5176\u8f93\u5165\uff0c\u5bfc\u51fa\u7684\u8fdc\u7a0b\u65b9\u6cd5\u8c03\u7528(RMI)\u5bf9\u8c61\u4e5f\u53ef\u4ee5\u66f4\u8f7b\u677e\u5730\u9a8c\u8bc1\u8c03\u7528\u53c2\u6570\u3002\n<\/div>\n<div class=\"desc\">\n  \u5e8f\u5217\u5316\u5ba2\u6237\u7aef\u5b9e\u73b0\u5728ObjectInputStream\u4e0a\u8bbe\u7f6e\u7684\u7b5b\u9009\u5668\u63a5\u53e3\u3002\u5bf9\u4e8eRMI\uff0c\u8be5\u5bf9\u8c61\u662f\u901a\u8fc7RemoteServerRef\u5bfc\u51fa\u7684\uff0c\u8be5RemoteServerRef\u8bbe\u7f6e\u4e86MarshalInputStream\u4e0a\u7684\u8fc7\u6ee4\u5668\uff0c\u4ee5\u9a8c\u8bc1\u672a\u7f16\u7ec4\u7684\u8c03\u7528\u53c2\u6570\u3002\n<\/div>\n<h3 class=\"h3\"> Stack-Walking API <\/h3>\n<div class=\"desc\">\n  Java\u5305\u542b\u4e00\u4e2a\u5806\u6808\u904d\u5386API\uff0c\u8be5API\u5141\u8bb8\u5ef6\u8fdf\u8bbf\u95ee\u5806\u6808\u4e2d\u7684\u4fe1\u606f\u3002<br \/>\n <br \/>\u5982\u679c\u914d\u7f6e\u4e86\u5806\u6808\u884c\u8fdb\u5668\uff0c\u5219\u8be5\u5806\u6808\u884c\u8fdbAPI\u5141\u8bb8\u8bbf\u95eeClass\u5bf9\u8c61\u3002\n<\/div>\n<h3 class=\"h3\"> Nashorn\u7684\u89e3\u6790\u5668API <\/h3>\n<div class=\"desc\">\n  Java\u6dfb\u52a0\u4e86Parser API\uff0c\u8be5API\u5141\u8bb8\u5728\u670d\u52a1\u5668\u7aef\u6846\u67b6\uff0c\u7279\u5b9a\u7684IDE\u7b49\u4e2d\u4f7f\u7528Enable\u5e94\u7528\u7a0b\u5e8f\u3002<br \/>\n <br \/>\u5b83\u53ef\u7528\u4e8e\u4ece\u5b57\u7b26\u4e32\uff0cURL\u6216URL\u89e3\u6790ECMAScript\u4ee3\u7801\u3002\u89e3\u6790\u5668\u7c7b\u65b9\u6cd5\u7684\u6587\u4ef6\u3002\u6b64\u7c7b\u7684\u65b9\u6cd5\u8fd4\u56deCompilationUnitTree\u7c7b\u7684\u5bf9\u8c61\uff0c\u8be5\u5bf9\u8c61\u5c06ECMAScript\u4ee3\u7801\u8868\u793a\u4e3a\u62bd\u8c61\u8bed\u6cd5\u6811\u3002<br \/>\n <br \/> Nashorn\u89e3\u6790\u5668API\u4f4d\u4e8ejdk.nashorn.api.tree\u5305\u4e2d\u3002\n<\/div>\n<h3>\u5728Nashorn\u4e2d\u5b9e\u73b0\u9009\u5b9a\u7684ECMAScript 6\u529f\u80fd<\/h3>\n<div class=\"desc\">\n  Java\u5728ECMA-62\u7684\u7b2c6\u7248\u4e2d\u4e3aNashorn\u6dfb\u52a0\u4e86\u4e00\u4e9b\u65b0\u529f\u80fd\u3002\u4ee5\u4e0b\u662f\u5df2\u5b9e\u73b0\u7684\u529f\u80fd\u3002\n<\/div>\n<p><span class=\"line\">\u6a21\u677f\u5b57\u7b26\u4e32<\/span><br \/>\n<span class=\"line\"> let\uff0cconst\u548cblock\u4f5c\u7528\u57df<\/span><br \/>\n<span class=\"line\">\u8fed\u4ee3\u5668\u548cfor..of\u5faa\u73af<\/span><br \/>\n<span class=\"line\">\u5730\u56fe\uff0c\u96c6\u5408\uff0cWeakMap\u548cWeakSet <\/span><br \/>\n<span class=\"line\">\u7b26\u53f7<\/span><br \/>\n<span class=\"line\">\u4e8c\u8fdb\u5236\u548c\u516b\u8fdb\u5236\u6587\u5b57<\/span> <\/p>\n<h3 class=\"h3\">\u51c6\u5907\u7528\u4e8e\u6a21\u5757\u5316\u7684JavaFX UI\u63a7\u4ef6\u548cCSS API <\/h3>\n<div class=\"desc\">\n  Java\u5305\u62ec\u7528\u4e8eCSS\u529f\u80fd\u548cJavaFX UI\u63a7\u4ef6\u7684\u516c\u5171API\u3002\u8fd9\u4e9b\u529f\u80fd\u4ee5\u524d\u53ea\u80fd\u901a\u8fc7\u5185\u90e8\u7a0b\u5e8f\u5305\u83b7\u5f97\uff0c\u4f46\u7531\u4e8e\u91c7\u7528\u6a21\u5757\u5316\u65b9\u6cd5\uff0c\u56e0\u6b64\u73b0\u5728\u53ef\u4ee5\u8bbf\u95ee\u3002\n<\/div>\n<h3 class=\"h3\"> BeanInfo\u6ce8\u91ca<\/h3>\n<div class=\"desc\">\n  @beaninfo Javadoc\u6807\u8bb0\u5df2\u66ff\u6362\u4e3a\u6ce8\u91ca\u7c7b\u578bJavaBean\uff0cBeanProperty\u548cSwingContainer\u3002\n<\/div>\n<p> p&gt; <\/p>\n<div class=\"desc\">\n  \u6211\u4eec\u53ef\u4ee5\u76f4\u63a5\u5728Bean\u7c7b\u4e2d\u4f7f\u7528\u8fd9\u4e9b\u5c5e\u6027\u3002\u5b83\u8fd8\u5141\u8bb8\u81ea\u52a8\u5220\u9664\u81ea\u52a8\u521b\u5efa\u7684\u7c7b\uff0c\u5e76\u5728\u8fd0\u884c\u65f6\u7684BeanInfo\u751f\u6210\u671f\u95f4\u8bbe\u7f6e\u76f8\u5e94\u7684\u529f\u80fd\u5c5e\u6027\u3002\n<\/div>\n<h3 class=\"h3\"> TIFF\u56fe\u50cfI\/O <\/h3>\n<div class=\"desc\">\n  TIFF(\u6807\u8bb0\u56fe\u50cf\u6587\u4ef6)\u683c\u5f0f)\u88ab\u6dfb\u52a0\u4e3a\u6807\u51c6\u7684\u8bfb\u5199\u65b9\u5f0f\u3002\u5b83\u4f4d\u4e8e\u5305javax.imageio\u4e2d\u3002\u6dfb\u52a0\u4e86\u4e00\u4e2a\u65b0\u7684\u8f6f\u4ef6\u5305javax.imageio.plugins.tiff\uff0c\u4ee5\u63d0\u4f9b\u7b80\u5316TIFF\u5143\u6570\u636e\u53ef\u9009\u64cd\u4f5c\u7684\u7c7b\u3002\n<\/div>\n<h3 class=\"h3\"> Windows\u548cLinux\u4e0a\u7684HiDPI\u56fe\u5f62<\/h3>\n<div class=\"desc\">\n  \u5728Windows\u548cLinux\u4e0a\u81ea\u52a8\u7f29\u653e\u548c\u8c03\u6574AWT\u548cSwing\u7ec4\u4ef6\uff0c\u4ee5\u5b9e\u73b0\u6bcf\u82f1\u5bf8\u9ad8\u70b9(HiDPI)\u663e\u793a\u3002<br \/>\n <br \/> JDK\u5df2\u5728OS X\u4e0a\u652f\u6301HiDPI\"\u89c6\u7f51\u819c\u663e\u793a\"\u3002<br \/>\n <br \/>\u4ee5\u524d\u5728\u6b64\u7248\u672c\u4e2d\uff0c\u5728Windows\u548cLinux\u4e0a\uff0cJava\u5e94\u7528\u7a0b\u5e8f\u662f\u6839\u636e\u50cf\u7d20\u8c03\u6574\u5927\u5c0f\u548c\u5448\u73b0\u7684\uff0c\u5373\u4f7f\u5728HiDPI\u663e\u793a\u5668\u4e0a\uff0c\u5176\u50cf\u7d20\u5bc6\u5ea6\u4e5f\u53ef\u4ee5\u662f\u4f20\u7edf\u663e\u793a\u5668\u76842-3\u500d\u3002\u8fd9\u5bfc\u81f4GUI\u7ec4\u4ef6\u548c\u7a97\u53e3\u592a\u5c0f\u800c\u65e0\u6cd5\u9605\u8bfb\u6216\u4f7f\u7528\u3002\n<\/div>\n<h3 class=\"h3\">\u7279\u5b9a\u4e8e\u5e73\u53f0\u7684\u684c\u9762\u529f\u80fd<\/h3>\n<div class=\"desc\">\n  \u5728java.awt\u4e2d\u6dfb\u52a0\u4e86\u4e00\u4e9b\u65b0\u65b9\u6cd5\u3002\u684c\u9762\u7c7b\u3002\u8fd9\u4e9b\u65b9\u6cd5\u63d0\u4f9b\u4ee5\u4e0b\u529f\u80fd\u3002\n<\/div>\n<p><span class=\"line\">\u663e\u793a\u81ea\u5b9a\u4e49\u7684\"\u5173\u4e8e\"\u548c\"\u9996\u9009\u9879\"\u7a97\u53e3\u3002<\/span><br \/>\n<span class=\"line\">\u5904\u7406\u6253\u5f00\u6216\u6253\u5370\u6587\u4ef6\u5217\u8868\u7684\u8bf7\u6c42\u3002<\/span><br \/>\n<span class=\"line\"> Handle\u8bf7\u6c42\u6253\u5f00URL\u3002<\/span><br \/>\n<span class=\"line\">\u6253\u5f00\u672c\u673a\u5e2e\u52a9\u67e5\u770b\u5668\u5e94\u7528\u7a0b\u5e8f\u3002<\/span><br \/>\n<span class=\"line\">\u8bbe\u7f6e\u9ed8\u8ba4\u83dc\u5355\u680f\u3002<\/span><br \/>\n<span class=\"line\">\u542f\u7528\u6216\u7981\u7528\u8981\u7a81\u7136\u7ec8\u6b62\u7684\u5e94\u7528\u7a0b\u5e8f\u3002<\/span> <\/p>\n<h3 class=\"h3\">\u5728Linux\u4e0a\u542f\u7528GTK 3 <\/h3>\n<div class=\"desc\">\n  Java\u65b0\u7248\u672c\u5141\u8bb8Java\u56fe\u5f62\u5e94\u7528\u7a0b\u5e8f(JavaFX\uff0cSwing\u6216Abstract Window Toolkit)\u5728Linux\u4e0a\u4f7f\u7528GTK\u7248\u672c\u3002<br \/>\n <br \/> JDK\u9ed8\u8ba4\u4f7f\u7528GTK +2\uff0c\u5982\u679c\u4e0d\u53ef\u7528\uff0c\u5219\u4f7f\u7528GTK + 3\u3002<br \/>\n <br \/>\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u8bbe\u7f6ejdk.gtk.version\u5c5e\u6027\u6765\u4f7f\u7528\u7279\u5b9a\u7248\u672c\u3002\n<\/div>\n<h3 class=\"h3\"> Unicode 8.0 <\/h3>\n<div class=\"desc\">\n  Java\u5728\u5176\u65b0Java 9\u7248\u672c\u4e2d\u652f\u6301Unicode 8.0\uff0c\u4ee5\u524d\u4f7f\u7528\u7684\u662fUnicode 6.2\u3002<br \/>\n <br \/> Java 9\u652f\u6301Unicode 6.3\u30017.0\u548c8.0\u6807\u51c6\uff0c\u8fd9\u4e9b\u6807\u51c6\u7ed3\u5408\u4e86\u5f15\u5165\u768410,555\u4e2a\u5b57\u7b26\uff0c29\u4e2a\u811a\u672c\u548c42\u4e2a\u5757\u3002\n<\/div>\n<h3 class=\"h3\">\u9ed8\u8ba4\u60c5\u51b5\u4e0b\u542f\u7528\u7684CLDR\u8bed\u8a00\u73af\u5883\u6570\u636e<\/h3>\n<div class=\"desc\">\n  CLDR(\u516c\u5171\u8bed\u8a00\u73af\u5883\u6570\u636e\u5b58\u50a8\u5e93)\u8868\u793aUnicode CLDR\u9879\u76ee\u63d0\u4f9b\u7684\u8bed\u8a00\u73af\u5883\u6570\u636e\u3002\u5b83\u6700\u521d\u662f\u5728JDK 8\u4e2d\u6dfb\u52a0\u7684\uff0c\u73b0\u5728\u662fJDK 9\u4e2d\u7684\u9ed8\u8ba4\u503c\u3002<br \/>\n <br \/>\u6211\u4eec\u53ef\u4ee5\u901a\u8fc7\u5c06\u5c5e\u6027java.locale.providers\u8bbe\u7f6e\u4e3aCLAT\u4e4b\u524d\u7684COMPAT\u503c\u6765\u542f\u7528\u4e0eJava 8\u517c\u5bb9\u7684\u884c\u4e3a\u3002\n<\/div>\n<h3 class=\"h3\"> UTF-8\u5c5e\u6027\u6587\u4ef6<\/h3>\n<div class=\"desc\">\n  UTF-8\u662f\u8868\u793a\u975e\u62c9\u4e01\u5b57\u7b26\u7684\u4fbf\u6377\u65b9\u6cd5\u3002 Java\u7684\u65b0\u7248\u672c\u4ee5UTF-8\u7f16\u7801\u52a0\u8f7d\u5c5e\u6027\u6587\u4ef6\u3002\u5728\u65e9\u671f\u7248\u672c\u4e2d\uff0c\u52a0\u8f7d\u5c5e\u6027\u8d44\u6e90\u675f\u65f6\u4f7f\u7528ISO-8859-1\u7f16\u7801\u3002\n<\/div>\n<p><span class=\"line\"> Java\u5220\u9664\u4e86\u8ba4\u53ef\u6807\u51c6\u8986\u76d6\u673a\u5236\u548c\u6269\u5c55\u673a\u5236\u3002<\/span><br \/>\n<span class=\"line\"> <strong> rt.jar\u548ctools.jar <\/strong>\u5747\u5df2\u4eceJRE\u4e2d\u5220\u9664\u3002<\/span><br \/>\n<span class=\"line\">\u9ed8\u8ba4\u60c5\u51b5\u4e0b\uff0c\u65e0\u6cd5\u8bbf\u95eeJDK\u7684\u5185\u90e8API\u3002<\/span><br \/><\/p>\n","protected":false},"excerpt":{"rendered":"Java9 \u65b0\u529f\u80fdzh-cn","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[111],"tags":[],"class_list":["post-742","post","type-post","status-publish","format-standard","hentry","category-java-jichu"],"_links":{"self":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/posts\/742"}],"collection":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/comments?post=742"}],"version-history":[{"count":0,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/posts\/742\/revisions"}],"wp:attachment":[{"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/media?parent=742"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/categories?post=742"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bianchenghao6.com\/wp-json\/wp\/v2\/tags?post=742"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}