如何安装JAVA 8 Debian 8

Question

我已经在下面的代码中在debian jessie中安装了Java 8：

echo "deb http://ppa.launchpad.net/webupd8team/java/ubuntu trusty main" > /etc/apt/sources.list.d/webupd8team-java.list

echo "deb-src http://ppa.launchpad.net/webupd8team/java/ubuntu trusty main" >> /etc/apt/sources.list.d/webupd8team-java.list

apt-key adv --keyserver keyserver.ubuntu.com --recv-keys EEA14886
apt-get update && apt-get install oracle-java8-installer -y

但是突然之间，这不再起作用了。

E: Unable to find the oracle8-java-installer package

我在下面尝试了另一步，但是出现了相同的错误：

sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java8-installer

Answer 1

从下载（需要Oracle帐户）

https://www.oracle.com/technetwork/java/javaee/downloads/jdk8-downloads-2133151.html

jdk-8u211-linux-x64.tar.gz

作为根

cp jdk-8u211-linux-x64.tar.gz /usr/lib/jvm/

cd /usr/lib/jvm/

tar zxvf jdk-8u211-linux-x64.tar.gz

设置为默认运行：

update-alternatives --install /usr/bin/java java /usr/lib/jvm/jdk1.8.0_211/bin/java 4

update-alternatives --install /usr/bin/javac javac /usr/lib/jvm/jdk1.8.0_211/bin/javac 4

sudo update-alternatives --config java

然后选择选项4 （因为先前运行过update-alternatives --install / usr / bin / java java /usr/lib/jvm/jdk1.8.0_211/bin/java 4 ）

来源： https : //docs.oracle.com/javase/8/docs/technotes/guides/install/linux_jdk.html#BJFJJEFG