{"id":171238,"date":"2024-05-08T17:24:53","date_gmt":"2024-05-08T09:24:53","guid":{"rendered":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/171238.html"},"modified":"2024-05-08T17:24:56","modified_gmt":"2024-05-08T09:24:56","slug":"java-%e7%a8%8b%e5%ba%8f%e5%bc%80%e5%8f%91%e7%9a%84%e7%8e%af%e5%a2%83%e5%8f%98%e9%87%8f%e5%a6%82%e4%bd%95%e9%85%8d%e7%bd%ae","status":"publish","type":"post","link":"https:\/\/docs.pingcode.com\/ask\/ask-ask\/171238.html","title":{"rendered":"Java \u7a0b\u5e8f\u5f00\u53d1\u7684\u73af\u5883\u53d8\u91cf\u5982\u4f55\u914d\u7f6e"},"content":{"rendered":"<p style=\"text-align:center\"><img decoding=\"async\" src=\"https:\/\/cdn-kb.worktile.com\/kb\/wp-content\/uploads\/2024\/04\/27042247\/5a379bcf-c2f2-4805-8acf-885c2d56e2a0.webp\" alt=\"Java \u7a0b\u5e8f\u5f00\u53d1\u7684\u73af\u5883\u53d8\u91cf\u5982\u4f55\u914d\u7f6e\" \/><\/p>\n<p><p>\u914d\u7f6eJava\u7a0b\u5e8f\u5f00\u53d1\u7684\u73af\u5883\u53d8\u91cf\u662fJava\u521d\u5b66\u8005\u5fc5\u987b\u638c\u63e1\u7684\u57fa\u7840\u6b65\u9aa4\uff0c\u8fd9\u5bf9\u4e8e\u7a0b\u5e8f\u7684\u7f16\u8bd1\u548c\u8fd0\u884c\u81f3\u5173\u91cd\u8981\u3002\u914d\u7f6e\u73af\u5883\u53d8\u91cf\u4e3b\u8981\u5305\u62ec<strong>JAVA_HOME\u3001PATH\u3001CLASSPATH<\/strong>\uff0c\u8fd9\u4e00\u8fc7\u7a0b\u53ef\u4ee5\u786e\u4fdd\u5728\u547d\u4ee4\u884c\u4e2d\u5168\u5c40\u8bbf\u95eeJava\u7f16\u8bd1\u5668\u548c\u89e3\u91ca\u5668\u3002<strong>JAVA_HOME<\/strong>\u662f\u6700\u5173\u952e\u7684\u914d\u7f6e\uff0c\u5b83\u6307\u5411\u4e86Java\u5f00\u53d1\u5de5\u5177\u5305\uff08JDK\uff09\u7684\u5b89\u88c5\u76ee\u5f55\uff0c\u8bb8\u591aJava\u5e94\u7528\u7a0b\u5e8f\u548c\u5de5\u5177\uff0c\u5982Apache Tomcat\u548cMaven\uff0c\u90fd\u9700\u8981\u901a\u8fc7\u8fd9\u4e2a\u53d8\u91cf\u627e\u5230JDK\u3002<\/p>\n<\/p>\n<p><p>\u8be6\u7ec6\u6765\u8bf4\uff0c\u8bbe\u5b9a<strong>JAVA_HOME<\/strong>\u53d8\u91cf\u53ef\u4ee5\u4f7f\u64cd\u4f5c\u7cfb\u7edf\u77e5\u9053JDK\u7684\u5b89\u88c5\u4f4d\u7f6e\u3002\u8fd9\u4e2a\u4f4d\u7f6e\u5305\u542b\u4e86Java\u7f16\u8bd1\u5668\uff08javac\uff09\u3001Java\u8fd0\u884c\u73af\u5883\uff08java\uff09\u4ee5\u53ca\u5176\u4ed6\u5fc5\u987b\u7684\u8fd0\u884c\u65f6\u5e93\u3002\u5982\u679c\u6ca1\u6709\u6b63\u786e\u8bbe\u7f6e<strong>JAVA_HOME<\/strong>\uff0c\u53ef\u80fd\u4f1a\u9047\u5230\u9519\u8bef\u6d88\u606f\uff0c\u63d0\u793a\u7cfb\u7edf\u627e\u4e0d\u5230javac\u547d\u4ee4\uff0c\u5bfc\u81f4\u65e0\u6cd5\u7f16\u8bd1Java\u7a0b\u5e8f\u3002\u56e0\u6b64\uff0c\u521d\u5b66\u8005\u5728\u914d\u7f6e\u73af\u5883\u53d8\u91cf\u65f6\u5e94\u5f53\u9996\u5148\u5173\u6ce8\u5e76\u6b63\u786e\u8bbe\u7f6e<strong>JAVA_HOME<\/strong>\uff0c\u4ee5\u907f\u514d\u9047\u5230\u4e0d\u5fc5\u8981\u7684\u9ebb\u70e6\u3002<\/p>\n<\/p>\n<p><h3>\u4e00\u3001JAVA_HOME\u914d\u7f6e<\/h3>\n<\/p>\n<p><p><strong>JAVA_HOME<\/strong>\u53d8\u91cf\u7684\u914d\u7f6e\u662fJava\u73af\u5883\u53d8\u91cf\u8bbe\u7f6e\u7684\u7b2c\u4e00\u6b65\u3002\u6839\u636e\u60a8\u7684\u64cd\u4f5c\u7cfb\u7edf\uff08Windows\u3001macOS\u6216Linux\uff09\uff0c\u914d\u7f6e\u65b9\u5f0f\u4f1a\u6709\u6240\u4e0d\u540c\u3002<\/p>\n<\/p>\n<ul>\n<li>\n<p><strong>\u5bf9\u4e8eWindows\u7528\u6237<\/strong>\uff0c\u53ef\u4ee5\u901a\u8fc7&quot;\u63a7\u5236\u9762\u677f&quot; -&gt; &quot;\u7cfb\u7edf&quot; -&gt; &quot;\u9ad8\u7ea7\u7cfb\u7edf\u8bbe\u7f6e&quot; -&gt; &quot;\u73af\u5883\u53d8\u91cf&quot;\u6765\u8bbe\u7f6e\u3002\u70b9\u51fb&quot;\u65b0\u5efa&quot;\u6309\u94ae\uff0c\u53d8\u91cf\u540d\u8f93\u5165&quot;JAVA_HOME&quot;\uff0c\u53d8\u91cf\u503c\u8bbe\u4e3aJDK\u7684\u5b89\u88c5\u8def\u5f84\uff0c\u4f8b\u5982&quot;C:\\Program Files\\Java\\jdk-14&quot;\u3002<\/p>\n<\/p>\n<\/li>\n<li>\n<p><strong>\u5bf9\u4e8emacOS\u548cLinux\u7528\u6237<\/strong>\uff0c\u5219\u9700\u8981\u4fee\u6539bash\u6587\u4ef6\u3002\u5728\u7ec8\u7aef\u4e2d\u8f93\u5165<code>export JAVA_HOME=$(\/usr\/libexec\/java_home)<\/code>\uff0c\u7136\u540e\u5728bash\u914d\u7f6e\u6587\u4ef6\uff08\u5982<del>\/.bash_profile, ~\/.zshrc, \u6216<\/del>\/.profile\uff09\u4e2d\u52a0\u5165\u8fd9\u4e00\u884c\u3002<\/p>\n<\/p>\n<\/li>\n<\/ul>\n<p><p>\u914d\u7f6e\u597d<strong>JAVA_HOME<\/strong>\u540e\uff0c\u91cd\u542f\u547d\u4ee4\u884c\u7a97\u53e3\u6216\u7ec8\u7aef\uff0c\u8f93\u5165<code>echo $JAVA_HOME<\/code>\uff08Linux\/macOS\uff09\u6216<code>echo %JAVA_HOME%<\/code>\uff08Windows\uff09\uff0c\u5982\u679c\u663e\u793a\u51faJDK\u7684\u5b89\u88c5\u8def\u5f84\uff0c\u5219\u8868\u793a\u914d\u7f6e\u6210\u529f\u3002<\/p>\n<\/p>\n<p><h3>\u4e8c\u3001PATH\u53d8\u91cf\u914d\u7f6e<\/h3>\n<\/p>\n<p><p>\u914d\u7f6e<strong>PATH<\/strong>\u73af\u5883\u53d8\u91cf\u53ef\u4ee5\u8ba9\u60a8\u5728\u4efb\u4f55\u76ee\u5f55\u4e0b\u901a\u8fc7\u547d\u4ee4\u884c\u76f4\u63a5\u8fd0\u884cJava\u7a0b\u5e8f\u3002\u8fd9\u4e00\u6b65\u9aa4\u786e\u4fdd\u4e86<code>javac<\/code>\u3001<code>java<\/code>\u7b49\u547d\u4ee4\u7684\u5168\u5c40\u53ef\u7528\u6027\u3002<\/p>\n<\/p>\n<ul>\n<li>\n<p><strong>Windows\u7528\u6237<\/strong>\u540c\u6837\u53ef\u901a\u8fc7&quot;\u73af\u5883\u53d8\u91cf&quot;\u5bf9\u8bdd\u6846\u627e\u5230&quot;Path&quot;\u53d8\u91cf\uff0c\u70b9\u51fb&quot;\u7f16\u8f91&quot;\uff0c\u7136\u540e&quot;\u65b0\u5efa&quot;\uff0c\u52a0\u5165&quot;%JAVA_HOME%\\bin&quot;\u3002<\/p>\n<\/p>\n<\/li>\n<li>\n<p><strong>macOS\u548cLinux\u7528\u6237<\/strong>\u9700\u8981\u5728bash\u914d\u7f6e\u6587\u4ef6\u4e2d\u52a0\u5165<code>export PATH=$PATH:$JAVA_HOME\/bin<\/code>\u3002<\/p>\n<\/p>\n<\/li>\n<\/ul>\n<p><p>\u5b8c\u6210<strong>PATH<\/strong>\u53d8\u91cf\u914d\u7f6e\u540e\uff0c\u91cd\u65b0\u6253\u5f00\u547d\u4ee4\u884c\u7a97\u53e3\u6216\u7ec8\u7aef\uff0c\u8f93\u5165<code>javac -version<\/code>\u548c<code>java -version<\/code>\uff0c\u82e5\u80fd\u663e\u793a\u51fa\u5b89\u88c5\u7684JDK\u7248\u672c\uff0c\u5219\u8868\u660e\u914d\u7f6e\u6210\u529f\u3002<\/p>\n<\/p>\n<p><h3>\u4e09\u3001CLASSPATH\u914d\u7f6e<\/h3>\n<\/p>\n<p><p><strong>CLASSPATH<\/strong>\u73af\u5883\u53d8\u91cf\u7528\u4e8e\u6307\u5b9a\u7c7b\u52a0\u8f7d\u5668\u641c\u7d22\u7c7b\u548c\u63a5\u53e3\u7684\u4f4d\u7f6e\u3002\u867d\u7136\u73b0\u4ee3Java\u5e94\u7528\u5f88\u5c11\u76f4\u63a5\u4f7f\u7528CLASSPATH\u73af\u5883\u53d8\u91cf\uff08\u66f4\u503e\u5411\u4e8e\u4f7f\u7528\u5982Maven\u6216Gradle\u8fd9\u6837\u7684\u6784\u5efa\u5de5\u5177\u7ba1\u7406\u4f9d\u8d56\uff09\uff0c\u4f46\u4e86\u89e3\u5982\u4f55\u8bbe\u7f6e\u4f9d\u7136\u91cd\u8981\u3002<\/p>\n<\/p>\n<ul>\n<li>\n<p><strong>\u914d\u7f6eCLASSPATH<\/strong>\u901a\u5e38\u53ea\u9700\u8981\u5c06\u5176\u8bbe\u4e3a&quot;.&quot;\uff0c\u8868\u793a\u5f53\u524d\u76ee\u5f55\u3002\u5728\u4e00\u4e9b\u7279\u6b8a\u60c5\u51b5\u4e0b\uff0c\u53ef\u80fd\u8fd8\u9700\u52a0\u4e0a\u5176\u4ed6\u5fc5\u8981\u7684JAR\u6587\u4ef6\u8def\u5f84\u3002<\/p>\n<\/p>\n<\/li>\n<li>\n<p><strong>Windows\u7528\u6237<\/strong>\u901a\u8fc7&quot;\u73af\u5883\u53d8\u91cf&quot;\u5bf9\u8bdd\u6846\uff0c\u65b0\u5efa\u4e00\u4e2a\u540d\u4e3a&quot;CLASSPATH&quot;\u7684\u53d8\u91cf\uff0c\u5176\u503c\u8bbe\u7f6e\u4e3a&quot;.&quot;\u3002<\/p>\n<\/p>\n<\/li>\n<li>\n<p><strong>\u5bf9\u4e8emacOS\u548cLinux<\/strong>\uff0c\u5219\u5728bash\u914d\u7f6e\u6587\u4ef6\u4e2d\u52a0\u5165<code>export CLASSPATH=.<\/code>\u3002<\/p>\n<\/p>\n<\/li>\n<\/ul>\n<p><p>\u5728\u914d\u7f6e\u4e86<strong>CLASSPATH<\/strong>\u4e4b\u540e\uff0cJava\u8fd0\u884c\u65f6\u53ef\u4ee5\u5728\u5f53\u524d\u76ee\u5f55\u67e5\u627e\u548c\u52a0\u8f7d\u7c7b\u3002<\/p>\n<\/p>\n<p><h3>\u56db\u3001\u73af\u5883\u53d8\u91cf\u9a8c\u8bc1<\/h3>\n<\/p>\n<p><p>\u5b8c\u6210\u6240\u6709\u914d\u7f6e\u540e\uff0c\u9a8c\u8bc1\u73af\u5883\u53d8\u91cf\u662f\u5426\u6b63\u786e\u8bbe\u7f6e\u975e\u5e38\u91cd\u8981\u3002\u8fd9\u53ef\u4ee5\u901a\u8fc7\u8fd0\u884c\u7b80\u5355\u7684Java\u7a0b\u5e8f\u6765\u5b9e\u73b0\u3002\u9996\u5148\uff0c\u521b\u5efa\u4e00\u4e2a\u540d\u4e3a<code>HelloWorld.java<\/code>\u7684Java\u6587\u4ef6\uff0c\u5185\u5bb9\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p><pre><code class=\"language-java\">public class HelloWorld {<\/p>\n<p>   public static void m<a href=\"https:\/\/docs.pingcode.com\/blog\/59162.html\" target=\"_blank\">AI<\/a>n(String[] args) {<\/p>\n<p>      System.out.println(&quot;Hello, World&quot;);<\/p>\n<p>   }<\/p>\n<p>}<\/p>\n<p><\/code><\/pre>\n<\/p>\n<p><p>\u63a5\u7740\uff0c\u5728\u547d\u4ee4\u884c\u6216\u7ec8\u7aef\u4e2d\uff0c\u5207\u6362\u5230\u8be5\u6587\u4ef6\u6240\u5728\u76ee\u5f55\uff0c\u8fd0\u884c<code>javac HelloWorld.java<\/code>\u6765\u7f16\u8bd1\u7a0b\u5e8f\u3002\u5982\u679c\u672a\u51fa\u73b0\u4efb\u4f55\u9519\u8bef\u6d88\u606f\uff0c\u8bf4\u660e\u73af\u5883\u53d8\u91cf\u914d\u7f6e\u6b63\u786e\u3002\u63a5\u4e0b\u6765\uff0c\u4f7f\u7528<code>java HelloWorld<\/code>\u8fd0\u884c\u7f16\u8bd1\u540e\u7684\u7a0b\u5e8f\uff0c\u5982\u679c\u5c4f\u5e55\u4e0a\u6253\u5370\u51fa&quot;Hello, World&quot;\uff0c\u5219\u8868\u793aJava\u73af\u5883\u53d8\u91cf\u914d\u7f6e\u6210\u529f\u3002<\/p>\n<\/p>\n<p><p>\u914d\u7f6eJava\u73af\u5883\u53d8\u91cf\u662f\u4efb\u4f55Java\u5f00\u53d1\u4eba\u5458\u5165\u95e8\u7684\u57fa\u7840\u77e5\u8bc6\u3002\u6b63\u786e\u914d\u7f6e\u8fd9\u4e9b\u53d8\u91cf\u4e0d\u4ec5\u6709\u52a9\u4e8e\u7b80\u5316\u5f00\u53d1\u548c\u8c03\u8bd5\u8fc7\u7a0b\uff0c\u8fd8\u80fd\u907f\u514d\u8bb8\u591a\u521d\u5b66\u8005\u5e38\u89c1\u7684\u914d\u7f6e\u9519\u8bef\u3002\u901a\u8fc7\u9075\u5faa\u672c\u6307\u5357\u4e2d\u7684\u6b65\u9aa4\uff0c\u60a8\u53ef\u4ee5\u786e\u4fdd\u81ea\u5df1\u7684Java\u5f00Development\u73af\u5883\u88ab\u6b63\u786e\u8bbe\u7f6e\uff0c\u4e3a\u4eca\u540e\u7684\u5b66\u4e60\u548c\u9879\u76ee\u5f00\u53d1\u6253\u4e0b\u575a\u5b9e\u7684\u57fa\u7840\u3002<\/p>\n<\/p>\n<h2><strong>\u76f8\u5173\u95ee\u7b54FAQs\uff1a<\/strong><\/h2>\n<p><strong>Q1: \u600e\u6837\u8bbe\u7f6e Java \u7a0b\u5e8f\u5f00\u53d1\u7684\u73af\u5883\u53d8\u91cf\uff1f<\/strong><br \/>\nA1: \u9996\u5148\uff0c\u6253\u5f00\u7cfb\u7edf\u7684\u63a7\u5236\u9762\u677f\uff0c\u7136\u540e\u70b9\u51fb\u201c\u7cfb\u7edf\u548c\u5b89\u5168\u201d\uff0c\u518d\u9009\u62e9\u201c\u7cfb\u7edf\u201d\u3002\u63a5\u4e0b\u6765\uff0c\u70b9\u51fb\u201c\u9ad8\u7ea7\u7cfb\u7edf\u8bbe\u7f6e\u201d\uff0c\u5728\u5f39\u51fa\u7a97\u53e3\u7684\u201c\u9ad8\u7ea7\u201d\u9009\u9879\u5361\u4e2d\uff0c\u70b9\u51fb\u201c\u73af\u5883\u53d8\u91cf\u201d\u6309\u94ae\u3002\u5728\u201c\u7cfb\u7edf\u53d8\u91cf\u201d\u6216\u201c\u7528\u6237\u53d8\u91cf\u201d\u680f\u4e2d\uff0c\u53ef\u4ee5\u6dfb\u52a0\u6216\u7f16\u8f91\u76f8\u5e94\u7684\u73af\u5883\u53d8\u91cf\u3002<\/p>\n<p><strong>Q2: Java \u7a0b\u5e8f\u5f00\u53d1\u9700\u8981\u914d\u7f6e\u54ea\u4e9b\u73af\u5883\u53d8\u91cf\uff1f<\/strong><br \/>\nA2: Java \u7a0b\u5e8f\u5f00\u53d1\u9700\u8981\u914d\u7f6e\u4e24\u4e2a\u4e3b\u8981\u7684\u73af\u5883\u53d8\u91cf\uff1aJAVA_HOME \u548c PATH\u3002JAVA_HOME \u6307\u5411 JDK \u7684\u5b89\u88c5\u8def\u5f84\uff0c\u800c PATH \u5219\u5c06 JDK \u7684 bin \u76ee\u5f55\u6dfb\u52a0\u5230\u7cfb\u7edf\u7684\u73af\u5883\u53d8\u91cf\u4e2d\u3002\u9664\u6b64\u4e4b\u5916\uff0c\u4f60\u8fd8\u53ef\u4ee5\u8bbe\u7f6e CLASSPATH \u73af\u5883\u53d8\u91cf\u6765\u6307\u5b9a Java \u7a0b\u5e8f\u7f16\u8bd1\u65f6\u548c\u8fd0\u884c\u65f6\u7684\u7c7b\u8def\u5f84\u3002<\/p>\n<p><strong>Q3: \u5982\u4f55\u9a8c\u8bc1 Java \u7a0b\u5e8f\u5f00\u53d1\u73af\u5883\u53d8\u91cf\u662f\u5426\u914d\u7f6e\u6210\u529f\uff1f<\/strong><br \/>\nA3: \u4f60\u53ef\u4ee5\u901a\u8fc7\u547d\u4ee4\u884c\u9a8c\u8bc1 Java \u7a0b\u5e8f\u5f00\u53d1\u73af\u5883\u53d8\u91cf\u662f\u5426\u914d\u7f6e\u6210\u529f\u3002\u6253\u5f00\u547d\u4ee4\u63d0\u793a\u7b26\uff0c\u8f93\u5165 &quot;java -version&quot; \u547d\u4ee4\u6765\u68c0\u67e5 Java \u7684\u7248\u672c\u4fe1\u606f\u3002\u5982\u679c\u663e\u793a\u51fa Java \u7248\u672c\u53f7\u548c\u5176\u4ed6\u4fe1\u606f\uff0c\u8bf4\u660e Java \u73af\u5883\u53d8\u91cf\u914d\u7f6e\u6210\u529f\u3002\u53e6\u5916\uff0c\u4f60\u8fd8\u53ef\u4ee5\u5c1d\u8bd5\u7f16\u5199\u548c\u6267\u884c\u4e00\u4e2a\u7b80\u5355\u7684 Java \u7a0b\u5e8f\u6765\u786e\u8ba4\u914d\u7f6e\u662f\u5426\u6b63\u786e\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u914d\u7f6eJava\u7a0b\u5e8f\u5f00\u53d1\u7684\u73af\u5883\u53d8\u91cf\u662fJava\u521d\u5b66\u8005\u5fc5\u987b\u638c\u63e1\u7684\u57fa\u7840\u6b65\u9aa4\uff0c\u8fd9\u5bf9\u4e8e\u7a0b\u5e8f\u7684\u7f16\u8bd1\u548c\u8fd0\u884c\u81f3\u5173\u91cd\u8981\u3002\u914d\u7f6e\u73af\u5883\u53d8\u91cf 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