73 lines
2.0 KiB
Bash
73 lines
2.0 KiB
Bash
#!/bin/bash
|
||
|
||
# JDK 17 安装脚本 for CentOS
|
||
# 作者：awt
|
||
# 日期：mx
|
||
|
||
# 检查是否以root用户运行
|
||
if [ "$(id -u)" -ne 0 ]; then
|
||
echo "请使用root用户或通过sudo运行此脚本"
|
||
exit 1
|
||
fi
|
||
|
||
# 安装必要依赖
|
||
echo "正在安装必要依赖..."
|
||
yum install -y wget tar gzip
|
||
|
||
# 设置JDK版本
|
||
JDK_VERSION="17.0.10"
|
||
JDK_BUILD="7"
|
||
JDK_ARCHIVE="jdk-${JDK_VERSION}_linux-x64_bin.tar.gz"
|
||
JDK_URL="https://download.oracle.com/java/${JDK_VERSION%%.*}/archive/jdk-${JDK_VERSION}_linux-x64_bin.tar.gz"
|
||
|
||
# 安装目录
|
||
INSTALL_DIR="/usr/lib/jvm"
|
||
JAVA_HOME_DIR="jdk-${JDK_VERSION}"
|
||
|
||
# 创建安装目录
|
||
mkdir -p ${INSTALL_DIR}
|
||
cd ${INSTALL_DIR}
|
||
|
||
# 下载JDK (使用--no-check-certificate和--no-cookies配合Oracle的复杂下载逻辑)
|
||
echo "正在下载JDK ${JDK_VERSION}..."
|
||
wget --no-check-certificate --no-cookies --header "Cookie: oraclelicense=accept-securebackup-cookie" ${JDK_URL} -O ${JDK_ARCHIVE}
|
||
|
||
if [ $? -ne 0 ]; then
|
||
echo "JDK下载失败，请检查网络连接或URL有效性"
|
||
exit 1
|
||
fi
|
||
|
||
# 解压安装
|
||
echo "正在安装JDK..."
|
||
tar -xzf ${JDK_ARCHIVE}
|
||
rm -f ${JDK_ARCHIVE}
|
||
|
||
# 设置环境变量
|
||
echo "配置环境变量..."
|
||
cat > /etc/profile.d/java.sh <<EOF
|
||
export JAVA_HOME=${INSTALL_DIR}/${JAVA_HOME_DIR}
|
||
export PATH=\$JAVA_HOME/bin:\$PATH
|
||
EOF
|
||
|
||
# 加载环境变量
|
||
source /etc/profile.d/java.sh
|
||
|
||
# 更新alternatives系统
|
||
echo "设置系统默认Java..."
|
||
if [ -d "${INSTALL_DIR}/${JAVA_HOME_DIR}/bin" ]; then
|
||
update-alternatives --install "/usr/bin/java" "java" "${INSTALL_DIR}/${JAVA_HOME_DIR}/bin/java" 1000
|
||
update-alternatives --install "/usr/bin/javac" "javac" "${INSTALL_DIR}/${JAVA_HOME_DIR}/bin/javac" 1000
|
||
update-alternatives --set java "${INSTALL_DIR}/${JAVA_HOME_DIR}/bin/java"
|
||
update-alternatives --set javac "${INSTALL_DIR}/${JAVA_HOME_DIR}/bin/javac"
|
||
else
|
||
echo "Java二进制文件未找到，安装可能失败"
|
||
exit 1
|
||
fi
|
||
|
||
# 验证安装
|
||
echo "验证Java版本..."
|
||
java -version
|
||
javac -version
|
||
|
||
echo "JDK ${JDK_VERSION} 安装完成！"
|
||
echo "JAVA_HOME 设置为: ${INSTALL_DIR}/${JAVA_HOME_DIR}" |