{"id":10364,"date":"2023-11-28T21:33:12","date_gmt":"2023-11-28T13:33:12","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=10364"},"modified":"2023-12-07T11:18:27","modified_gmt":"2023-12-07T03:18:27","slug":"java-zhongjrejdkjvm-jijit-zhi-jian-you-shen-me-bu-3","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/11\/28\/java-zhongjrejdkjvm-jijit-zhi-jian-you-shen-me-bu-3\/","title":{"rendered":"Java\u4e2dJRE\u3001JDK\u3001JVM\u53caJIT\u4e4b\u95f4\u6709\u4ec0\u4e48\u4e0d\u540c\uff1f"},"content":{"rendered":"<p>\u5728Java\u5f00\u53d1\u4e2d\uff0cJRE\uff08Java Runtime Environment\uff09\u3001JDK\uff08Java Development Kit\uff09\u3001JVM\uff08Java Virtual Machine\uff09\u4ee5\u53caJIT\uff08Just-In-Time Compiler\uff09\u662f\u4e00\u4e9b\u5e38\u89c1\u7684\u672f\u8bed\uff0c\u5b83\u4eec\u5206\u522b\u8868\u793a\u4e0d\u540c\u7684\u6982\u5ff5\u548c\u89d2\u8272\uff1a<\/p>\n<ol>\n<li>\n<strong>JRE\uff08Java Runtime Environment\uff09\uff1a<\/strong><\/p>\n<ul>\n<li>JRE \u662f Java \u8fd0\u884c\u65f6\u73af\u5883\uff0c\u5b83\u5305\u542b\u4e86\u8fd0\u884c Java \u7a0b\u5e8f\u6240\u9700\u7684\u6240\u6709\u8fd0\u884c\u65f6\u5e93\u548c\u7ec4\u4ef6\uff0c\u4f46\u4e0d\u5305\u62ec\u5f00\u53d1\u5de5\u5177\uff08\u7f16\u8bd1\u5668\u3001\u8c03\u8bd5\u5668\u7b49\uff09\u3002<\/li>\n<li>JRE \u63d0\u4f9b\u4e86 Java \u5e94\u7528\u7a0b\u5e8f\u6267\u884c\u7684\u73af\u5883\uff0c\u5305\u62ec Java \u865a\u62df\u673a\uff08JVM\uff09\u548c\u6838\u5fc3\u7c7b\u5e93\u7b49\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<strong>JDK\uff08Java Development Kit\uff09\uff1a<\/strong><\/p>\n<ul>\n<li>JDK \u662f Java \u5f00\u53d1\u5de5\u5177\u5305\uff0c\u5b83\u5305\u542b\u4e86 JRE \u4e2d\u7684\u6240\u6709\u5185\u5bb9\uff0c\u5e76\u989d\u5916\u5305\u542b\u4e86\u7528\u4e8e Java \u5f00\u53d1\u7684\u5de5\u5177\uff0c\u5982\u7f16\u8bd1\u5668\uff08javac\uff09\u3001\u8c03\u8bd5\u5668\uff08jdb\uff09\u7b49\u3002<\/li>\n<li>JDK \u662f\u5f00\u53d1 Java \u7a0b\u5e8f\u7684\u57fa\u672c\u5de5\u5177\u96c6\uff0c\u5305\u62ec\u4e86 JRE \u548c\u5f00\u53d1\u5de5\u5177\uff0c\u4f7f\u5f00\u53d1\u4eba\u5458\u80fd\u591f\u7f16\u5199\u3001\u7f16\u8bd1\u548c\u8fd0\u884c Java \u5e94\u7528\u7a0b\u5e8f\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<strong>JVM\uff08Java Virtual Machine\uff09\uff1a<\/strong><\/p>\n<ul>\n<li>JVM \u662f Java \u865a\u62df\u673a\uff0c\u5b83\u662f\u4e00\u4e2a\u865a\u62df\u7684\u8ba1\u7b97\u673a\uff0c\u80fd\u591f\u5728\u5b9e\u9645\u8ba1\u7b97\u673a\u4e0a\u6a21\u62df\u6267\u884c Java \u5b57\u8282\u7801\uff08Java \u7f16\u8bd1\u540e\u7684\u4e2d\u95f4\u4ee3\u7801\uff09\u3002<\/li>\n<li>JVM \u8d1f\u8d23\u5c06 Java \u5b57\u8282\u7801\u8f6c\u6362\u6210\u5e95\u5c42\u5e73\u53f0\uff08\u786c\u4ef6\u548c\u64cd\u4f5c\u7cfb\u7edf\uff09\u53ef\u4ee5\u7406\u89e3\u5e76\u6267\u884c\u7684\u673a\u5668\u7801\u3002<\/li>\n<\/ul>\n<\/li>\n<li>\n<strong>JIT\uff08Just-In-Time Compiler\uff09\uff1a<\/strong><\/p>\n<ul>\n<li>JIT \u7f16\u8bd1\u5668\u662f JVM \u7684\u4e00\u90e8\u5206\uff0c\u5b83\u7528\u4e8e\u5c06 Java \u5b57\u8282\u7801\u52a8\u6001\u5730\u7f16\u8bd1\u6210\u672c\u5730\u673a\u5668\u7801\uff0c\u4ee5\u63d0\u9ad8\u7a0b\u5e8f\u7684\u6267\u884c\u6027\u80fd\u3002<\/li>\n<li>JIT \u7f16\u8bd1\u5668\u5c06\u5b57\u8282\u7801\u7ffb\u8bd1\u6210\u673a\u5668\u7801\uff0c\u8fd9\u6837\u5728\u7a0b\u5e8f\u8fd0\u884c\u65f6\u5c31\u4e0d\u518d\u9700\u8981\u6bcf\u6b21\u90fd\u89e3\u91ca\u6267\u884c\u5b57\u8282\u7801\uff0c\u800c\u662f\u76f4\u63a5\u6267\u884c\u672c\u5730\u673a\u5668\u7801\u3002<\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<p>\u5728\u7b80\u5316\u7684\u8bf4\u6cd5\u4e2d\uff0cJRE \u63d0\u4f9b\u4e86 Java \u7a0b\u5e8f\u7684\u8fd0\u884c\u73af\u5883\uff0cJDK \u4e0d\u4ec5\u63d0\u4f9b\u4e86\u8fd0\u884c\u73af\u5883\u8fd8\u63d0\u4f9b\u4e86\u5f00\u53d1\u5de5\u5177\uff0cJVM \u662f\u4e00\u4e2a\u865a\u62df\u673a\uff0c\u8d1f\u8d23\u5728\u5b9e\u9645\u8ba1\u7b97\u673a\u4e0a\u6267\u884c Java \u7a0b\u5e8f\uff0c\u800c JIT \u7f16\u8bd1\u5668\u662f JVM \u4e2d\u7684\u7ec4\u4ef6\uff0c\u7528\u4e8e\u63d0\u9ad8\u7a0b\u5e8f\u7684\u6267\u884c\u6027\u80fd\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u5728Java\u5f00\u53d1\u4e2d\uff0cJRE\uff08Java Runtime Environment\uff09\u3001JDK\uff08Java Develop [&hellip;]<\/p>\n","protected":false},"author":9,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[119],"tags":[],"class_list":["post-10364","post","type-post","status-publish","format-standard","hentry","category-jvm"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/10364","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/users\/9"}],"replies":[{"embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/comments?post=10364"}],"version-history":[{"count":2,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/10364\/revisions"}],"predecessor-version":[{"id":16828,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/10364\/revisions\/16828"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=10364"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=10364"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=10364"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}