{"id":259,"date":"2024-04-22T12:16:30","date_gmt":"2024-04-22T04:16:30","guid":{"rendered":"https:\/\/www.vanforever.com.cn\/?p=259"},"modified":"2024-04-22T12:16:30","modified_gmt":"2024-04-22T04:16:30","slug":"java%e7%8e%af%e5%a2%83%e9%85%8d%e7%bd%ae","status":"publish","type":"post","link":"https:\/\/www.vanforever.com.cn\/?p=259","title":{"rendered":"Java\u73af\u5883\u914d\u7f6e"},"content":{"rendered":"<div  class='collapse-block shadow-sm collapse-block-transparent collapsed hide-border-left'><div class='collapse-block-title'><span class='collapse-block-title-inner'>\u67e5\u770b\u7279\u8272\u56fe\u7247<\/span><i class='collapse-icon fa fa-angle-down'><\/i><\/div><div class='collapse-block-body' style='display:none;'><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/pic.vanforever.com.cn\/Vanforever\/20240412\/wallhaven-x62qmo_3840x2400.png'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  loading=\"lazy\" decoding=\"async\" class=\"alignnone size-large\" data-original=\"https:\/\/pic.vanforever.com.cn\/Vanforever\/20240412\/wallhaven-x62qmo_3840x2400.png\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" width=\"3840\" height=\"2400\" \/><\/div><\/div><\/div>\n<h3 id=\"1jdk-\u5b89\u88c5\">1\u3001jdk \u5b89\u88c5<\/h3>\n<h4 id=\"11\u51c6\u5907java\u6587\u4ef6\u5939\">1.1\u51c6\u5907java\u6587\u4ef6\u5939<\/h4>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042101.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042101.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" \/><\/div><\/p>\n<h4 id=\"12\u4e0b\u8f7djava-jdk\">1.2\u4e0b\u8f7djava jdk<\/h4>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042102.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042102.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" \/><\/div><\/p>\n<p><a href=\"https:\/\/www.oracle.com\/java\/technologies\/downloads\/#java22\">Java22 \u4e0b\u8f7d\u5730\u5740 | Oracle<\/a><\/p>\n<p><a href=\"https:\/\/www.oracle.com\/java\/technologies\/downloads\/#jdk21-windows\">Java21 \u4e0b\u8f7d\u5730\u5740 | Oracle<\/a><\/p>\n<p><a href=\"https:\/\/www.oracle.com\/java\/technologies\/javase\/javase8u211-later-archive-downloads.html\">Java8 \u4e0b\u8f7d\u5730\u5740 | Oracle<\/a><\/p>\n<h4 id=\"13\u8fdb\u884c\u5b89\u88c5\">1.3\u8fdb\u884c\u5b89\u88c5<\/h4>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042103.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042103.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" \/><\/div><\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042104.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042104.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" \/><\/div><\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042105.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042105.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" \/><\/div><\/p>\n<h3 id=\"2\u73af\u5883\u53d8\u91cf\u7684\u914d\u7f6e\">2\u3001\u73af\u5883\u53d8\u91cf\u7684\u914d\u7f6e<\/h3>\n<h4 id=\"21-javahome-\u914d\u7f6e\">2.1 Java_Home \u914d\u7f6e<\/h4>\n<p>\u70b9\u51fb <code>\u73af\u5883\u53d8\u91cf<\/code> \u8fdb\u6765\u5927\u6982\u662f\u8fd9\u6837\u5b50\u7684\uff0c\u70b9\u51fb <code>\u65b0\u5efa<\/code><\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042106.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042106.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" \/><\/div><\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042107.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042107.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" \/><\/div><\/p>\n<p>\u6dfb\u52a0\u914d\u7f6e\uff1a<\/p>\n<ul>\n<li>\u53d8\u91cf\u540d\uff1a<code>Java_Home<\/code><\/li>\n<li>\u53d8\u91cf\u503c\uff1a<code>jdk \u7684\u5b89\u88c5\u76ee\u5f55<\/code> \uff0c\u53ef\u4ee5\u70b9\u51fb\u6e38\u89c8\u76ee\u5f55\u9009\u62e9<\/li>\n<\/ul>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042108.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042108.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" \/><\/div><\/p>\n<p>\u65b0\u5efa\u597d\u4e86\uff0c\u70b9\u51fb <code>\u786e\u5b9a<\/code> \u4fdd\u5b58<\/p>\n<h4 id=\"22-path-\u914d\u7f6e\">2.2 Path \u914d\u7f6e<\/h4>\n<p>\u540c\u65f6\u8fd8\u9700\u8981\u6dfb\u52a0 <code>Path<\/code> \u7684 \u914d\u7f6e\uff0c\u9009\u62e9 <code>Path<\/code> \uff0c\u70b9\u51fb <code>\u7f16\u8f91<\/code> \uff0c\u53ef\u80fd\u4f1a\u770b\u5230\u4e24\u79cd\u60c5\u51b5<\/p>\n<p><strong>\u60c5\u51b5\u4e00\uff1a<\/strong><\/p>\n<p><code>\u65b0\u5efa<\/code> \u4e24\u4e2a\u73af\u5883\u53d8\u91cf<\/p>\n<ul>\n<li>\u53d8\u91cf1\uff1a<code>%Java_Home%\\bin<\/code><\/li>\n<li>\u53d8\u91cf2\uff1a<code>%Java_Home%\\jre\\bin<\/code><\/li>\n<\/ul>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042109.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042109.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" \/><\/div><\/p>\n<p>\u4e00\u822c\u6211\u4eec\u4f1a\u5c06\u5b83\u4e0a\u79fb\u5230\u9876\u90e8\uff0c\u518d <code>\u786e\u5b9a<\/code> \u4fdd\u5b58<\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042110.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042110.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"2024042110\" \/><\/div><\/p>\n<p><strong>\u60c5\u51b5\u4e8c\uff1a<\/strong><\/p>\n<p>\u5c06\u4ee5\u4e0b\u914d\u7f6e\u590d\u5236\u7c98\u8d34\u653e\u5728\u6700\u524d\u9762\uff0c\u518d <code>\u786e\u5b9a<\/code> \u4fdd\u5b58<\/p>\n<ul>\n<li>\u914d\u7f6e\uff1a<code>%Java_Home%\\bin;%Java_Home%\\jre\\bin;<\/code><\/li>\n<\/ul>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042111.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042111.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" \/><\/div><\/p>\n<p>\u73af\u5883\u53d8\u91cf\uff1a <code>\u786e\u5b9a<\/code> \u4fdd\u5b58<\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042112.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042112.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"2024042112\" \/><\/div><\/p>\n<p>\u7cfb\u7edf\u5c5e\u6027\uff1a <code>\u786e\u5b9a<\/code> \u4fdd\u5b58<\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042113.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042113.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" \/><\/div><\/p>\n<h4 id=\"23-classpath-\u914d\u7f6e\">2.3 CLASSPATH \u914d\u7f6e<\/h4>\n<p>\u70b9\u51fb <code>\u65b0\u5efa<\/code><\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042114.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042114.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" alt=\"2024042114\" \/><\/div><\/p>\n<p>\u6dfb\u52a0\u914d\u7f6e\uff1a<\/p>\n<ul>\n<li>\u53d8\u91cf\u540d\uff1a<code>CLASSPATH<\/code><\/li>\n<li>\u53d8\u91cf\u503c\uff1a<code>.;%JAVA_HOME%\\lib\\dt.jar;%JAVA_HOME%\\lib\\tools.jar;<\/code><\/li>\n<\/ul>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042115.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042115.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" \/><\/div><\/p>\n<p>\u70b9\u51fb<code>\u786e\u5b9a<\/code>\uff0c\u4fdd\u5b58<\/p>\n<p>\u597d\u4e86\uff0cjava \u5728 windows \u73af\u5883\u4e0b\u7684\u73af\u5883\u914d\u7f6e\u5c31\u5b8c\u6210\u4e86<\/p>\n<h3 id=\"3\u68c0\u6d4b\u662f\u5426\u914d\u7f6e\u6210\u529f\">3\u3001\u68c0\u6d4b\u662f\u5426\u914d\u7f6e\u6210\u529f<\/h3>\n<p>\u4f7f\u7528 dos \u547d\u540d \uff1a<code>win + R<\/code> \u518d\u8f93\u5165 <code>cmd<\/code> \u56de\u8f66<\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042116.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042116.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" \/><\/div><\/p>\n<p>\u6253\u5f00\u547d\u4ee4\u7a97\u53e3 \u8f93\u5165<code>java<\/code> \u56de\u8f66<\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042117.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042117.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" \/><\/div><\/p>\n<p>\u8f93\u5165<code>javac<\/code> \u56de\u8f66<\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042118.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042118.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" \/><\/div><\/p>\n<p>\u5982\u679c\u90fd\u6709\u6253\u5370\u4e00\u4e9b\u4fe1\u606f\u7684\u8bdd\u5c31\u8868\u793a java \u7684\u73af\u5883\u914d\u7f6e\u5df2\u7ecf\u6210\u529f\u4e86<\/p>\n<p>\u5982\u679c\u60f3\u8981\u67e5\u770b\u5f53\u524d\u7cfb\u7edf\u7684\u5168\u5c40 jdk \u7248\u672c\uff0c\u53ef\u8f93\u5165 <code>java -version<\/code> \u547d\u4ee4\u67e5\u770b<\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042119.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042119.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" \/><\/div><\/p>\n<h3 id=\"4\u5982\u4f55\u5207\u6362jdk\u7248\u672c\">4\u3001\u5982\u4f55\u5207\u6362JDK\u7248\u672c<\/h3>\n<h4 id=\"41\u5b9e\u73b0\u601d\u8def\">4.1\u5b9e\u73b0\u601d\u8def\uff1a<\/h4>\n<p>\u8bbe\u7f6e\u4e24\u4e2a\u4fdd\u5b58\u4e0d\u540c\u7248\u672cjdk\u8def\u5f84\u7684JAVA_HOME\u5b50\u53d8\u91cf\uff0c\u5728\u4f7f\u7528\u65f6\u901a\u8fc7\u4fee\u6539JAVA_HOME\u6307\u5411\u7684\u5b50\u53d8\u91cf\uff0c\u6765\u7075\u6d3b\u5207\u6362jdk\u7248\u672c\u3002<\/p>\n<h4 id=\"42\u5b9e\u73b0\u65b9\u6cd5\">4.2\u5b9e\u73b0\u65b9\u6cd5\uff1a<\/h4>\n<ol start=\"\">\n<li>\u521b\u5efa\u4e24\u4e2aJAVA_HOME\u5b50\u53d8\u91cfJAVA_HOME22\u548cJAVA_HOME21\uff0c\u5206\u522b\u6307\u5411jdk22\u548cjdk21\u7684\u5b89\u88c5\u76ee\u5f55\u3002<\/li>\n<li>\u8bbe\u7f6ePATH\u73af\u5883\u53d8\u91cf\u7684\u503c\u4e3a\uff1a%JAVA_HOME%\\bin;%JAVA_HOME%\\jre\\bin\u3002 <strong>\u8fd9\u6b65\u4e0e\u4e0a\u8ff0\u6b65\u9aa4\u76f8\u540c<\/strong><\/li>\n<li>\u8bbe\u7f6eJAVA_HOME\u73af\u5883\u53d8\u91cf\u7684\u503c\uff1a%JAVA_HOME22% \u6216 %JAVA_HOME21%\u3002<\/li>\n<\/ol>\n<p>\u8fd9\u6837\uff0c\u5728\u4f7f\u7528\u65f6\u5982\u679c\u9700\u8981\u5207\u6362jdk\u7248\u672c\uff0c\u53ea\u9700\u8981\u66ff\u6362JAVA_HOME\u7684\u503c\u4e3a\u76f8\u5e94\u7684\u5b50\u53d8\u91cf\u5373\u53ef\u3002<\/p>\n<h4 id=\"43\u5b9e\u73b0\u8fc7\u7a0b\">4.3\u5b9e\u73b0\u8fc7\u7a0b<\/h4>\n<ol start=\"\">\n<li>\u9632\u6b62\u7b49\u4f1a\u5207\u6362 JDK \u5931\u8d25\uff0c<strong>\u5220\u9664<\/strong>\u4e0b\u8f7d JDK \u65f6\u81ea\u52a8\u5728 Path \u4e2d\u6dfb\u52a0\u7684\u53d8\u91cf<\/li>\n<\/ol>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042120.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042120.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" \/><\/div><\/p>\n<ol start=\"2\">\n<li>\u70b9\u51fb\u3010\u65b0\u5efa\u3011\uff0c<strong>\u6dfb\u52a0<\/strong> JAVA_HOME21 \u53d8\u91cf<\/li>\n<\/ol>\n<ul>\n<li><strong>\u53d8\u91cf\u540d<\/strong>\u4e3a\uff1a<code>JAVA_HOME21<\/code> \uff0c<strong>\u5982\u679c\u6709\u591a\u4e2a JDK\uff0c\u53d8\u91cf\u540d\u8981\u6709\u533a\u522b<\/strong>\uff0c\u5982\u56fe\u6240\u793a<\/li>\n<li><strong>\u53d8\u91cf\u503c<\/strong>\u4e3a\uff1a\u4e0a\u4e00\u4e2a\u6b65\u9aa4\u4e2d <strong>JDK \u7684\u5b89\u88c5\u8def\u5f84<\/strong><\/li>\n<\/ul>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042121.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042121.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" \/><\/div><\/p>\n<ol start=\"3\">\n<li>JDK \u7248\u672c\u5207\u6362<br \/>\n\u70b9\u51fb\u3010\u65b0\u5efa\u3011\uff0c<strong>\u6dfb\u52a0<\/strong> CLASSPATH \u53d8\u91cf<\/li>\n<\/ol>\n<ul>\n<li>\u53d8\u91cf\u540d\u4e3a\uff1aCLASSPATH<\/li>\n<li>\u53d8\u91cf\u503c\u4e3a\uff1a.;%JAVA_HOME%\\lib;%JAVA_HOME%\\lib\\tools.jar <strong>\u548c\u4e0a\u8ff0\u5185\u5bb9\u76f8\u540c<\/strong><\/li>\n<\/ul>\n<p>\u70b9\u51fb\u3010\u65b0\u5efa\u3011\uff0c<strong>\u6dfb\u52a0<\/strong> JAVA_HOME \u53d8\u91cf<\/p>\n<ul>\n<li>\u53d8\u91cf\u540d\u4e3a\uff1aJAVA_HOME<\/li>\n<li>\u53d8\u91cf\u503c\u4e3a\uff1a%JAVA_HOME21% \uff0c<\/li>\n<\/ul>\n<p><strong>\u7279\u522b\u6ce8\u610f<\/strong>\uff1a<code>%<\/code> \u4e2d\u5f15\u7528\u7684\u662f<strong>\u6240\u8981\u4f7f\u7528\u7684 JDK \u7248\u672c<\/strong>\uff0c\u8981\u4e0e\u4e0a\u4e00\u6b65\u4e2d JDK \u7684\u53d8\u91cf\u540d<strong>\u5bf9\u5e94<\/strong><\/p>\n<p><strong>JDK \u7248\u672c\u5207\u6362\u65b9\u6cd5<\/strong>\uff1a\u53ef\u4ee5\u66f4\u6539 <code>%<\/code> \u4e2d\u7684 JDK \u53d8\u91cf\u540d\uff0c\u4ece\u800c\u8fbe\u5230\u5207\u6362\u4e0d\u540c JDK \u7684\u76ee\u7684\u3002<\/p>\n<p><strong>\u5982\u4e0b\u6240\u793a,java\u7248\u672c\u5df2\u7ecf\u88ab\u5207\u6362\u5230java21<\/strong><\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042122.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042122.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" \/><\/div><\/p>\n<p><div class='fancybox-wrapper lazyload-container-unload' data-fancybox='post-images' href='https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042123.jpg'><img class=\"lazyload lazyload-style-1\" src=\"data:image\/svg+xml;base64,PCEtLUFyZ29uTG9hZGluZy0tPgo8c3ZnIHdpZHRoPSIxIiBoZWlnaHQ9IjEiIHhtbG5zPSJodHRwOi8vd3d3LnczLm9yZy8yMDAwL3N2ZyIgc3Ryb2tlPSIjZmZmZmZmMDAiPjxnPjwvZz4KPC9zdmc+\"  decoding=\"async\" data-original=\"https:\/\/pic.vanforever.com.cn\/Tools\/Java\/20240421\/2024042123.jpg\" src=\"data:image\/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAAAXNSR0IArs4c6QAAAARnQU1BAACxjwv8YQUAAAAJcEhZcwAADsQAAA7EAZUrDhsAAAANSURBVBhXYzh8+PB\/AAffA0nNPuCLAAAAAElFTkSuQmCC\" \/><\/div><\/p>\n<p>\u81f3\u6b64\uff0c<strong>Java\u73af\u5883\u914d\u7f6e<\/strong>\u5df2\u7ecf\u5168\u90e8\u5927\u529f\u544a\u6210\u4e86<\/p>\n","protected":false},"excerpt":{"rendered":"<p>1\u3001jdk \u5b89\u88c5 1.1\u51c6\u5907java\u6587\u4ef6\u5939 1.2\u4e0b\u8f7djava jdk Java22 \u4e0b\u8f7d\u5730\u5740 | Oracl [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[11],"tags":[10],"class_list":["post-259","post","type-post","status-publish","format-standard","hentry","category-11","tag-10"],"_links":{"self":[{"href":"https:\/\/www.vanforever.com.cn\/index.php?rest_route=\/wp\/v2\/posts\/259","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.vanforever.com.cn\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.vanforever.com.cn\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.vanforever.com.cn\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.vanforever.com.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=259"}],"version-history":[{"count":2,"href":"https:\/\/www.vanforever.com.cn\/index.php?rest_route=\/wp\/v2\/posts\/259\/revisions"}],"predecessor-version":[{"id":261,"href":"https:\/\/www.vanforever.com.cn\/index.php?rest_route=\/wp\/v2\/posts\/259\/revisions\/261"}],"wp:attachment":[{"href":"https:\/\/www.vanforever.com.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=259"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.vanforever.com.cn\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=259"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.vanforever.com.cn\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=259"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}