在ubuntu 10.04上安装openjdk-7-jre - 软件包openjdk-7-jre没有安装候选

Question

我正在尝试在我的ubuntu上安装openjdk-7,但是我收到以下错误:

$ sudo apt-get install openjdk-7-jre
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Package openjdk-7-jre is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source
E: Package openjdk-7-jre has no installation candidate

我想我错过了一些回购或类似的事情,但我无法找到任何参考地点和内容.

Answer 1

我最近不得不在CentOS,openSUSE和Ubuntu上安装Java 7,经过多次烦恼和研究后,最终确定了这一点,它适用于所有三种风格:

• 忽略(并卸载)与您的发行版捆绑在一起的/随附的任何JRE或JDK.他们比他们的价值更麻烦,总是落后于最新的更新.
• 从http://www.oracle.com/technetwork/java/javase/downloads/index.html下载JRE 7(如果要开发,则下载JDK 7).
  • 对于JRE,如果你有64位机器,请获取jre-xxx-linux-x64.tar.gz;如果是32位,则获取jre-xxx-linux-i586.tar.gz.不要打扰RPM.
  • 对于JDK,如果你有64位机器,请获取jdk-xxx-linux-x64.tar.gz;如果是32位,则获取jdk-xxx-linux-i586.tar.gz.
• 以root身份或使用sudo执行以下操作:
  • #tar -xzvf jdk-xxx-linux-x64.tar.gz(或者你下载的那个)
  • #mkdir/usr/java
  • #mv jdkx.x.x_xx/usr/java(或者,如果是JRE,这将是提取的JRE目录)
  • #ln -s /usr/java/jdkx.x.x_xx/usr/java/jdkx
  • #ln -s/usr/java/jdkx/usr/java/latest
  • #ln -s/usr/java/latest/usr/java/default
  • #ln -s/usr/java/default/bin/java/usr/bin/java
  • #ln -s/usr/java/default/bin/javac/usr/bin/javac
  • #ln -s/usr/java/default/bin/javah/usr/bin/javah
  • #ln -s/usr/java/default/bin/javadoc/usr/bin/javadoc
  • #ln -s/usr/java/default/bin/javaws/usr/bin/javaws

显然,你必须在这里填写一些空白,但你应该得到图片.作为一个工作示例,这是我的安装(注意,为了我的目的,我需要Java 7和Java 6 JDK的64位和32位版本,所以有很多):

# ls -al /usr/java/
total 24
drwxr-xr-x  6 root root 4096 Sep  2 11:02 .
drwxr-xr-x 14 root root 4096 Aug  9 22:14 ..
lrwxrwxrwx  1 root root   16 Aug 26 20:05 default -> /usr/java/latest
drwxr-xr-x  8 root root 4096 Sep  2 10:52 jdk1.6.0_35
drwxr-xr-x  8 root root 4096 Sep  2 10:52 jdk1.6.0_35-32
drwxr-xr-x  8 root root 4096 Sep  2 10:52 jdk1.7.0_07
drwxr-xr-x  8 root root 4096 Sep  2 10:52 jdk1.7.0_07-32
lrwxrwxrwx  1 root root   11 Sep  2 10:54 jdk6 -> jdk1.6.0_35
lrwxrwxrwx  1 root root   14 Sep  2 10:54 jdk6-32 -> jdk1.6.0_35-32
lrwxrwxrwx  1 root root   11 Sep  2 10:54 jdk7 -> jdk1.7.0_07
lrwxrwxrwx  1 root root   14 Sep  2 10:54 jdk7-32 -> jdk1.7.0_07-32
lrwxrwxrwx  1 root root    4 Sep  2 10:55 latest -> jdk7
# ls -al /usr/bin/java*
lrwxrwxrwx 1 root root 26 Aug 26 20:05 /usr/bin/java -> /usr/java/default/bin/java
lrwxrwxrwx 1 root root 27 Aug 26 20:05 /usr/bin/javac -> /usr/java/default/bin/javac
lrwxrwxrwx 1 root root 29 Aug 26 20:05 /usr/bin/javadoc -> /usr/java/default/bin/javadoc
lrwxrwxrwx 1 root root 27 Aug 26 20:07 /usr/bin/javah -> /usr/java/default/bin/javah
lrwxrwxrwx 1 root root 28 Aug 26 20:05 /usr/bin/javaws -> /usr/java/default/bin/javaws
# java -version
java version "1.7.0_07"
Java(TM) SE Runtime Environment (build 1.7.0_07-b10)
Java HotSpot(TM) 64-Bit Server VM (build 23.3-b01, mixed mode)