jdk安装

oracle jdk

oracl jdk官网下载地址

oracl jdk历史版本下载地址

jdk8

解压缩包

tar xf jdk-8u451-linux-aarch64.tar.gz -C /usr/local

导出环境变量

cat >> /etc/profile.d/jdk8.sh << 'EOF'
export JAVA_HOME=/usr/local/jdk1.8.0_451
export PATH=$JAVA_HOME/bin:$JAVA_HOME/jre:$JAVA_HOME/lib:$PATH
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
export JAVA_HOME PATH CLASSPATH
EOF

使配置生效

source /etc/profile

查看版本

$ java -version
java version "1.8.0_451"
Java(TM) SE Runtime Environment (build 1.8.0_451-b10)
Java HotSpot(TM) 64-Bit Server VM (build 25.451-b10, mixed mode)

jdk25

解压缩包

tar xf jdk-25_linux-aarch64_bin.tar.gz -C /usr/local

导出环境变量

cat >> /etc/profile.d/jdk25.sh << 'EOF'
export JAVA_HOME=/usr/local/jdk-25
export PATH=$JAVA_HOME/bin:$JAVA_HOME/jre:$JAVA_HOME/lib:$PATH
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
export JAVA_HOME PATH CLASSPATH
EOF

使配置生效

source /etc/profile

查看版本

$ java -version
java version "25" 2025-09-16 LTS
Java(TM) SE Runtime Environment (build 25+37-LTS-3491)
Java HotSpot(TM) 64-Bit Server VM (build 25+37-LTS-3491, mixed mode, sharing)

openjdk

openjdk官网

openjdk官方安装文档

openjdk历史版本下载地址

解压缩包

tar xf openjdk-25_linux-aarch64_bin.tar.gz -C /usr/local/

导出环境变量

cat >> /etc/profile.d/jdk25.sh << 'EOF'
export JAVA_HOME=/usr/local/jdk-25
export PATH=$JAVA_HOME/bin:$JAVA_HOME/jre:$JAVA_HOME/lib:$PATH
export CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar
export JAVA_HOME PATH CLASSPATH
EOF

使配置生效

source /etc/profile

查看版本

$ java -version
openjdk version "25" 2025-09-16
OpenJDK Runtime Environment (build 25+36-3489)
OpenJDK 64-Bit Server VM (build 25+36-3489, mixed mode, sharing)