{"id":10083,"date":"2023-11-28T21:26:09","date_gmt":"2023-11-28T13:26:09","guid":{"rendered":"https:\/\/wx.kaifamiao.info\/?p=10083"},"modified":"2023-12-07T10:48:46","modified_gmt":"2023-12-07T02:48:46","slug":"java-ru-he-pan-duanjvm-shi32wei-hai-shi64wei","status":"publish","type":"post","link":"http:\/\/wx.kaifamiao.info\/index.php\/2023\/11\/28\/java-ru-he-pan-duanjvm-shi32wei-hai-shi64wei\/","title":{"rendered":"Java\u5982\u4f55\u5224\u65adJVM\u662f32\u4f4d\u8fd8\u662f64\u4f4d\uff1f"},"content":{"rendered":"<p>\u4f60\u53ef\u4ee5\u901a\u8fc7Java\u7cfb\u7edf\u5c5e\u6027\u6765\u5224\u65adJVM\u662f32\u4f4d\u8fd8\u662f64\u4f4d\u3002Java\u63d0\u4f9b\u4e86<code>java.vm.name<\/code>\u548c<code>os.arch<\/code>\u4e24\u4e2a\u5c5e\u6027\uff0c\u5b83\u4eec\u5206\u522b\u8868\u793aJava\u865a\u62df\u673a\u7684\u540d\u79f0\u548c\u64cd\u4f5c\u7cfb\u7edf\u7684\u4f53\u7cfb\u7ed3\u6784\u3002\u4e0b\u9762\u662f\u901a\u8fc7\u8fd9\u4e24\u4e2a\u5c5e\u6027\u6765\u5224\u65adJVM\u7684\u4f4d\u6570\u7684\u793a\u4f8b\u4ee3\u7801\uff1a<\/p>\n<pre><code class=\"language-java\">public class JVMBitCheck {\n    public static void main(String[] args) {\n        String jvmName = System.getProperty(&quot;java.vm.name&quot;);\n        String osArch = System.getProperty(&quot;os.arch&quot;);\n\n        System.out.println(&quot;Java VM Name: &quot; + jvmName);\n        System.out.println(&quot;Operating System Architecture: &quot; + osArch);\n\n        if (osArch.contains(&quot;64&quot;)) {\n            System.out.println(&quot;JVM is 64-bit&quot;);\n        } else {\n            System.out.println(&quot;JVM is 32-bit&quot;);\n        }\n    }\n}\n<\/code><\/pre>\n<p>\u5728\u4e0a\u8ff0\u4ee3\u7801\u4e2d\uff0c\u901a\u8fc7<code>System.getProperty(&quot;java.vm.name&quot;)<\/code>\u83b7\u53d6Java\u865a\u62df\u673a\u7684\u540d\u79f0\uff0c\u901a\u8fc7<code>System.getProperty(&quot;os.arch&quot;)<\/code>\u83b7\u53d6\u64cd\u4f5c\u7cfb\u7edf\u7684\u4f53\u7cfb\u7ed3\u6784\u3002\u7136\u540e\u5224\u65ad<code>osArch<\/code>\u4e2d\u662f\u5426\u5305\u542b&quot;64&quot;\u6765\u5224\u65adJVM\u7684\u4f4d\u6570\uff0c\u5982\u679c\u5305\u542b\u5219\u662f64\u4f4d\uff0c\u5426\u5219\u662f32\u4f4d\u3002<\/p>\n<p>\u9700\u8981\u6ce8\u610f\u7684\u662f\uff0c\u8fd9\u79cd\u65b9\u6cd5\u4ec5\u4ec5\u662f\u5224\u65adJVM\u548c\u64cd\u4f5c\u7cfb\u7edf\u7684\u4f53\u7cfb\u7ed3\u6784\uff0c\u4e0d\u4ee3\u8868\u5e94\u7528\u7a0b\u5e8f\u8fd0\u884c\u572864\u4f4dJVM\u4e0a\u3002\u56e0\u4e3a\u572864\u4f4d\u7684\u64cd\u4f5c\u7cfb\u7edf\u4e0a\uff0c\u4f60\u4ecd\u7136\u53ef\u4ee5\u8fd0\u884c32\u4f4d\u7684Java\u7a0b\u5e8f\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u4f60\u53ef\u4ee5\u901a\u8fc7Java\u7cfb\u7edf\u5c5e\u6027\u6765\u5224\u65adJVM\u662f32\u4f4d\u8fd8\u662f64\u4f4d\u3002Java\u63d0\u4f9b\u4e86java.vm.name\u548cos.arc [&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-10083","post","type-post","status-publish","format-standard","hentry","category-jvm"],"_links":{"self":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/10083","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=10083"}],"version-history":[{"count":2,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/10083\/revisions"}],"predecessor-version":[{"id":16797,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/posts\/10083\/revisions\/16797"}],"wp:attachment":[{"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/media?parent=10083"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/categories?post=10083"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/wx.kaifamiao.info\/index.php\/wp-json\/wp\/v2\/tags?post=10083"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}