{"id":40,"date":"2021-01-06T00:03:13","date_gmt":"2021-01-05T16:03:13","guid":{"rendered":"https:\/\/www.52dixiaowo.com\/java\/?p=40"},"modified":"2021-07-17T04:24:53","modified_gmt":"2021-07-16T20:24:53","slug":"java-%e7%8e%af%e5%a2%83%e7%8e%af%e5%a2%83%e5%ae%89%e8%a3%85%e4%b8%8e-sayhello","status":"publish","type":"post","link":"https:\/\/www.52dixiaowo.com\/java\/post-40.html","title":{"rendered":"\u4e0b\u8f7d\u5b89\u88c5JDK"},"content":{"rendered":"\n<p>java \u662f\u534a\u7f16\u8bd1\u534a\u89e3\u91ca\u8bed\u8a00\uff0c<\/p>\n\n\n\n<ol><li>\u9996\u5148 jdk \u5c06 java \u6587\u4ef6\u7f16\u8bd1\u4e3a class \u6587\u4ef6<\/li><li>\u63a5\u7740 jre \u8fd0\u884c\u7a0b\u5e8f<\/li><li>\u6700\u540e jvm \u8d1f\u8d23\u89e3\u91ca class \u6587\u4ef6<\/li><\/ol>\n\n\n\n<p>\u5f00\u53d1\u65f6\u53ef\u4ee5\u770b\u4f5c\u662f\u7f16\u8bd1\u8bed\u8a00, \u8fd0\u884c\u8fc7\u7a0b\u53ef\u4ee5\u770b\u4f5c\u662f\u89e3\u91ca\u8bed\u8a00.<\/p>\n\n\n\n<h5>1.jdk \u4e0e jre \u4e0e jvm<\/h5>\n\n\n\n<p>jdk \u5305\u542b\u4e86 java \u5f00\u53d1\u5de5\u5177(\u5305\u542b\u7f16\u8bd1\u5668)\u4e0e jre<\/p>\n\n\n\n<p>jre \u5305\u542b\u4e86 \u8fd0\u884c\u7c7b\u5e93(\u53ef\u4ee5\u8fd0\u884cjava\u7a0b\u5e8f, \u5373 jar\u5305\u6587\u4ef6) \u4e0e jvm<\/p>\n\n\n\n<p>jvm  \u662f java \u8de8\u5e73\u53f0\u7684\u6838\u5fc3\u5904\u7406\u5668\uff08\u4e0d\u540c\u5e73\u53f0\u6709\u4e0d\u540c\u7248\u672c\u7684 jvm\uff09<\/p>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" src=\"https:\/\/www.52dixiaowo.com\/java\/wp-content\/uploads\/sites\/4\/2021\/05\/image-6.png\" alt=\"\" class=\"wp-image-1339\" width=\"562\" height=\"279\" srcset=\"https:\/\/www.52dixiaowo.com\/java\/wp-content\/uploads\/sites\/4\/2021\/05\/image-6.png 583w, https:\/\/www.52dixiaowo.com\/java\/wp-content\/uploads\/sites\/4\/2021\/05\/image-6-300x149.png 300w\" sizes=\"(max-width: 562px) 100vw, 562px\" \/><\/figure>\n\n\n\n<h5>2.\u4e0b\u8f7d jdk<\/h5>\n\n\n\n<ul><li><a href=\"https:\/\/bdpan.52dixiaowo.com\/download?fsid=1121623450393837\" target=\"_blank\" rel=\"noreferrer noopener\">jdk-9.0.1_windows-x64_bin.exe<\/a><\/li><li><a href=\"https:\/\/bdpan.52dixiaowo.com\/download?fsid=111698257266497\" target=\"_blank\" rel=\"noreferrer noopener\">jdk-8u161-windows-x64.exe<\/a><\/li><li><a href=\"https:\/\/bdpan.52dixiaowo.com\/download?fsid=816440334174942\" target=\"_blank\" rel=\"noreferrer noopener\">jdk-7u17-windows-x64.exe<\/a><\/li><li><a href=\"https:\/\/bdpan.52dixiaowo.com\/download?fsid=48541136216267\" target=\"_blank\" rel=\"noreferrer noopener\">jdk-6u45-windows-x64.exe<\/a><\/li><\/ul>\n\n\n\n<p>\u76ee\u524d jdk8\uff0cjdk9 \u7528\u7684\u6bd4\u8f83\u591a<\/p>\n\n\n\n<p>jdk8 \u6bd4\u8f83\u7a33\u5b9a\u7528\u7684\u4eba\u591a\uff0c<\/p>\n\n\n\n<p>jdk9 \u5bf9 8 \u4e0d\u662f\u5b8c\u5168\u517c\u5bb9\uff0c\u4f46 9 \u5e94\u8be5\u662f\u6700\u540e\u4e00\u4e2a\u5927\u7248\u672c<\/p>\n\n\n\n<h5>3. \u5b89\u88c5 jdk(\u53ef\u4ee5\u540c\u65f6\u88c5\u591a\u4e2a\u7248\u672cjdk)<\/h5>\n\n\n\n<p>\u53cc\u51fb\u5b89\u88c5 jdk\uff0c\u6ce8\u610f\u4e8b\u9879<\/p>\n\n\n\n<ul><li>\u9009\u62e9\u7f16\u8bd1\u5de5\u5177\uff0c\u548c\u6587\u6863\uff0c\u4e0d\u9700\u8981\u516c\u5171jre( jdk \u4e2d\u5df2\u7ecf\u5305\u542b\u4e86 jre\uff09<\/li><li>(\u975e\u5fc5\u9009) \u5b89\u88c5\u76ee\u5f55\u4e0d\u8981\u6709\u4e2d\u6587\u548c\u7a7a\u683c<\/li><\/ul>\n\n\n\n<p>\u9ed8\u8ba4\u4f4d\u7f6e\uff1a C:\\Program Files\\Java<\/p>\n\n\n\n<p>\uff08\u5df2\u914d\u7f6e\u73af\u5883\u53d8\u91cf\u540e\uff0c\u67e5\u770b jdk \u7684\u5b89\u88c5\u4f4d\u7f6e, \u547d\u4ee4\uff1aecho %JAVA_HOME% \uff09<\/p>\n\n\n\n<h5>4. \u914d\u7f6e\u73af\u5883\u53d8\u91cf(\u53ea\u80fd\u914d\u7f6e\u4e00\u4e2a\u7248\u672c\u7684\u73af\u5883\u53d8\u91cf)<\/h5>\n\n\n\n<p>\u65b0\u5efa\u7cfb\u7edf\u73af\u5883\u53d8\u91cf\u540d\u5982\u4e0b\uff0c\u5185\u5bb9\u662f\u521a\u624d\u5b89\u88c5\u7684 jdk \u6839\u76ee\u5f55<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>JAVA_HOME<\/code><\/pre>\n\n\n\n<p>\u8ffd\u52a0 path \u8def\u5f84\uff0c\u8def\u5f84\u5982\u4e0b<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>%JAVA_HOME%\\bin;<\/code><\/pre>\n\n\n\n<p>\u521b\u5efa CLASSPATH \u7cfb\u7edf\u53d8\u91cf, \u5bf9\u5e94\u7684\u503c\u662f <\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>.;%JAVA_HOME%\\lib\\dt.jar;%JAVA_HOME%\\lib\\tools.jar<\/code><\/pre>\n\n\n\n<h5>5.\u6d4b\u8bd5\u73af\u5883<\/h5>\n\n\n\n<p>\u5206\u522b\u6d4b\u8bd5\u7f16\u8bd1\u9700\u8981\u7684 javac \u73af\u5883<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>javac -version<\/code><\/pre>\n\n\n\n<p>\u6d4b\u8bd5\u8fd0\u884c class \u6587\u4ef6\u9700\u8981\u7684 java \u73af\u5883<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>java -version<\/code><\/pre>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><img loading=\"lazy\" src=\"https:\/\/www.52dixiaowo.com\/java\/wp-content\/uploads\/sites\/4\/2021\/05\/image-7.png\" alt=\"\" class=\"wp-image-1340\" width=\"499\" height=\"281\" srcset=\"https:\/\/www.52dixiaowo.com\/java\/wp-content\/uploads\/sites\/4\/2021\/05\/image-7.png 513w, https:\/\/www.52dixiaowo.com\/java\/wp-content\/uploads\/sites\/4\/2021\/05\/image-7-300x169.png 300w\" sizes=\"(max-width: 499px) 100vw, 499px\" \/><\/figure>\n","protected":false},"excerpt":{"rendered":"<p>java \u662f\u534a\u7f16\u8bd1\u534a\u89e3\u91ca\u8bed\u8a00\uff0c \u9996\u5148 jdk \u5c06 java \u6587\u4ef6\u7f16\u8bd1\u4e3a class \u6587\u4ef6 \u63a5\u7740 jre \u8fd0\u884c\u7a0b&hellip; <a href=\"https:\/\/www.52dixiaowo.com\/java\/post-40.html\" class=\"more-link\">\u7ee7\u7eed\u9605\u8bfb <span class=\"screen-reader-text\">\u4e0b\u8f7d\u5b89\u88c5JDK<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[32],"tags":[],"_links":{"self":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/posts\/40"}],"collection":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/comments?post=40"}],"version-history":[{"count":3,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/posts\/40\/revisions"}],"predecessor-version":[{"id":1341,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/posts\/40\/revisions\/1341"}],"wp:attachment":[{"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/media?parent=40"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/categories?post=40"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.52dixiaowo.com\/java\/wp-json\/wp\/v2\/tags?post=40"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}