Redhat Enterprise Linux 6.4 安装Oracle JDK替换OpenJDK

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原创最新推荐文章于 2026-08-05 15:53:33 发布 996 阅读 AI 写同款· GEO 优化 ›

平台生命周期终止（EOL）策略：从风险应对到稳定性治理平台生命周期终止（EOL）是软件与硬件系统演进中的关键节点，本质是技术债务显性化与支持能力退化的交汇点。其核心原理在于识别安全支持、功能更新和合规认证三类支持断层，并通过依赖穿透建模、风险量化评估与自动化资产测绘实现主动治理。该策略不仅关乎补丁停更或版本下线，更直接影响系统可用性、等保/ISO 27001合规性及云原生架构演进路径。在混合云、开源生态与强监管场景下，EOL管理已从运维操作升级为跨职能协同的稳定性工程实践，需融合TCO成本分析、灰度验证机制与法律风险前置审查。本文聚焦生产级平台EOL策略的设计阅读详情

# java -version

java version "1.7.0_09-icedtea"

OpenJDK Runtime Environment (rhel-2.3.4.1.el6_3-x86_64)
OpenJDK 64-Bit Server VM (build 23.2-b09, mixed mode)

# update-alternatives --config java
There are 2 programs which provide 'java'.
Selection Command
-----------------------------------------------
*+ 1 /usr/lib/jvm/jre-1.7.0-openjdk.x86_64/bin/java
2 /usr/lib/jvm/jre-1.6.0-openjdk.x86_64/bin/java

安装Oracle JDK 1.7:

# rpm -ivh /mnt/hgfs/pub/jdk-7u45-linux-x64.rpm

update-alternatives添加Oracle JDK 1.7:

# update-alternatives --install /usr/bin/java java /usr/java/jdk1.7.0_45/bin/java 1

更改缺省JDK版本:

# update-alternatives --config java
There are 3 programs which provide 'java'.
Selection Command
-----------------------------------------------
*+ 1 /usr/lib/jvm/jre-1.7.0-openjdk.x86_64/bin/java
2 /usr/lib/jvm/jre-1.6.0-openjdk.x86_64/bin/java
3 /usr/java/jdk1.7.0_45/bin/java
Enter to keep the current selection[+], or type selection number: 3

# java -version
java version "1.7.0_45"
Java(TM) SE Runtime Environment (build 1.7.0_45-b18)
Java HotSpot(TM) 64-Bit Server VM (build 24.45-b08, mixed mode)

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