Java \u662f\u4e00\u7a2e\u5ee3\u6cdb\u4f7f\u7528\u7684\u7de8\u7a0b\u8a9e\u8a00\uff0c\u9069\u7528\u65bc\u5404\u7a2e\u61c9\u7528\u7a0b\u5e8f\u7684\u958b\u767c\uff0c\u5305\u62ec\u684c\u9762\u61c9\u7528\u3001\u7db2\u9801\u61c9\u7528\u548c\u79fb\u52d5\u61c9\u7528\u3002\u5c0d\u65bc\u958b\u767c\u8005\u4f86\u8aaa\uff0c\u5b89\u88dd Java \u74b0\u5883\u662f\u5fc5\u4e0d\u53ef\u5c11\u7684\u6b65\u9a5f\u3002\u672c\u6587\u5c07\u6307\u5c0e\u60a8\u5982\u4f55\u5728 Ubuntu 18.04 \u4e0a\u5b89\u88dd Java\u3002<\/p>\n
\u5728\u5b89\u88dd\u4efb\u4f55\u65b0\u8edf\u4ef6\u4e4b\u524d\uff0c\u5efa\u8b70\u5148\u66f4\u65b0\u7cfb\u7d71\u7684\u5305\u7ba1\u7406\u5668\u3002\u6253\u958b\u7d42\u7aef\uff0c\u8f38\u5165\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n
sudo apt update\nsudo apt upgrade<\/code><\/pre>\n\u9019\u5c07\u78ba\u4fdd\u60a8\u7684\u7cfb\u7d71\u64c1\u6709\u6700\u65b0\u7684\u5b89\u5168\u6027\u548c\u529f\u80fd\u66f4\u65b0\u3002<\/p>\n
\u6b65\u9a5f 2\uff1a\u6aa2\u67e5 Java \u662f\u5426\u5df2\u5b89\u88dd<\/h2>\n
\u5728\u5b89\u88dd Java \u4e4b\u524d\uff0c\u60a8\u53ef\u4ee5\u6aa2\u67e5\u7cfb\u7d71\u4e2d\u662f\u5426\u5df2\u7d93\u5b89\u88dd\u4e86 Java\u3002\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n
java -version<\/code><\/pre>\n\u5982\u679c\u7cfb\u7d71\u8fd4\u56de Java \u7684\u7248\u672c\u865f\uff0c\u5247\u8868\u793a\u5df2\u5b89\u88dd\u3002\u5982\u679c\u986f\u793a\u201ccommand not found\u201d\uff0c\u5247\u9700\u8981\u9032\u884c\u5b89\u88dd\u3002<\/p>\n
\u6b65\u9a5f 3\uff1a\u5b89\u88dd Java<\/h2>\n
Ubuntu 18.04 \u63d0\u4f9b\u4e86\u591a\u500b Java \u7248\u672c\uff0c\u6700\u5e38\u7528\u7684\u662f OpenJDK\u3002\u60a8\u53ef\u4ee5\u9078\u64c7\u5b89\u88dd OpenJDK 8 \u6216 OpenJDK 11\u3002\u4ee5\u4e0b\u662f\u5b89\u88dd\u9019\u5169\u500b\u7248\u672c\u7684\u547d\u4ee4\uff1a<\/p>\n
\u5b89\u88dd OpenJDK 8<\/h3>\nsudo apt install openjdk-8-jdk<\/code><\/pre>\n\u5b89\u88dd OpenJDK 11<\/h3>\nsudo apt install openjdk-11-jdk<\/code><\/pre>\n\u6839\u64da\u60a8\u7684\u9700\u6c42\u9078\u64c7\u5408\u9069\u7684\u7248\u672c\u9032\u884c\u5b89\u88dd\u3002\u5b89\u88dd\u904e\u7a0b\u4e2d\uff0c\u7cfb\u7d71\u53ef\u80fd\u6703\u8981\u6c42\u60a8\u78ba\u8a8d\u5b89\u88dd\uff0c\u8acb\u6309\u4e0b\u201cY\u201d\u9375\u4ee5\u7e7c\u7e8c\u3002<\/p>\n
\u6b65\u9a5f 4\uff1a\u8a2d\u7f6e\u74b0\u5883\u8b8a\u91cf<\/h2>\n
\u5b89\u88dd\u5b8c\u6210\u5f8c\uff0c\u60a8\u9700\u8981\u8a2d\u7f6e Java \u7684\u74b0\u5883\u8b8a\u91cf\u3002\u9019\u6a23\u53ef\u4ee5\u78ba\u4fdd\u7cfb\u7d71\u80fd\u5920\u6b63\u78ba\u627e\u5230 Java \u7684\u57f7\u884c\u6a94\u3002\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\u7de8\u8f2f\u74b0\u5883\u8b8a\u91cf\u6587\u4ef6\uff1a<\/p>\n
sudo nano \/etc\/environment<\/code><\/pre>\n\u5728\u6587\u4ef6\u7684\u672b\u5c3e\u6dfb\u52a0\u4ee5\u4e0b\u884c\uff1a<\/p>\n
JAVA_HOME=\"\/usr\/lib\/jvm\/java-8-openjdk-amd64\"\nPATH=\"$PATH:$JAVA_HOME\/bin\"<\/code><\/pre>\n\u6839\u64da\u60a8\u5b89\u88dd\u7684 Java \u7248\u672c\uff0c\u8acb\u76f8\u61c9\u5730\u4fee\u6539 JAVA_HOME \u7684\u8def\u5f91\u3002\u4fdd\u5b58\u4e26\u9000\u51fa\u7de8\u8f2f\u5668\u3002<\/p>\n
\u6b65\u9a5f 5\uff1a\u91cd\u65b0\u52a0\u8f09\u74b0\u5883\u8b8a\u91cf<\/h2>\n
\u70ba\u4e86\u4f7f\u66f4\u6539\u751f\u6548\uff0c\u60a8\u9700\u8981\u91cd\u65b0\u52a0\u8f09\u74b0\u5883\u8b8a\u91cf\u3002\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n
source \/etc\/environment<\/code><\/pre>\n\u6b65\u9a5f 6\uff1a\u9a57\u8b49\u5b89\u88dd<\/h2>\n
\u6700\u5f8c\uff0c\u60a8\u53ef\u4ee5\u518d\u6b21\u6aa2\u67e5 Java \u662f\u5426\u6b63\u78ba\u5b89\u88dd\u3002\u4f7f\u7528\u4ee5\u4e0b\u547d\u4ee4\uff1a<\/p>\n
java -version<\/code><\/pre>\n\u5982\u679c\u986f\u793a Java \u7684\u7248\u672c\u865f\uff0c\u5247\u8868\u793a\u5b89\u88dd\u6210\u529f\u3002<\/p>\n
\u7e3d\u7d50<\/h2>\n
\u5728 Ubuntu 18.04 \u4e0a\u5b89\u88dd Java \u662f\u4e00\u500b\u76f8\u5c0d\u7c21\u55ae\u7684\u904e\u7a0b\uff0c\u901a\u904e\u4e0a\u8ff0\u6b65\u9a5f\uff0c\u60a8\u53ef\u4ee5\u8f15\u9b06\u5b8c\u6210\u5b89\u88dd\u3002\u7121\u8ad6\u60a8\u662f\u958b\u767c\u8005\u9084\u662f\u5b78\u7fd2\u8005\uff0c\u64c1\u6709\u4e00\u500b\u6b63\u78ba\u914d\u7f6e\u7684 Java \u74b0\u5883\u90fd\u662f\u81f3\u95dc\u91cd\u8981\u7684\u3002\u5982\u679c\u60a8\u9700\u8981\u66f4\u9ad8\u6548\u7684\u958b\u767c\u74b0\u5883\uff0c\u8003\u616e\u4f7f\u7528 \u9999\u6e2fVPS<\/a> \u4f86\u90e8\u7f72\u60a8\u7684\u61c9\u7528\u7a0b\u5e8f\uff0c\u9019\u6a23\u53ef\u4ee5\u7372\u5f97\u66f4\u597d\u7684\u6027\u80fd\u548c\u7a69\u5b9a\u6027\u3002<\/p>\n","protected":false},"excerpt":{"rendered":"\u5b78\u7fd2\u5982\u4f55\u5728 Ubuntu 18.04 \u4e0a\u5b89\u88dd Java\uff0c\u7c21\u55ae\u6b65\u9a5f\u6559\u4f60\u5feb\u901f\u914d\u7f6e\u958b\u767c\u74b0\u5883\uff0c\u8f15\u9b06\u958b\u59cb\u7de8\u7a0b\u3002<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4924],"tags":[],"class_list":["post-52845","post","type-post","status-publish","format-standard","hentry","category-setup-tutorials"],"_links":{"self":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/52845","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/comments?post=52845"}],"version-history":[{"count":1,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/52845\/revisions"}],"predecessor-version":[{"id":52846,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/posts\/52845\/revisions\/52846"}],"wp:attachment":[{"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/media?parent=52845"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/categories?post=52845"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/server.hk\/cnblog\/wp-json\/wp\/v2\/tags?post=52845"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}