在linux系统中安装最新版的jdk

• Download the installation package @ http://java.sun.com , we choose the Linux package (not RPM though) to download.
• Copy and execute the downloaded .bin file

  sudo cp jdk-6u6-linux-i586.bin /opt      # We are going to install the package under /opt
  cd /opt
  sudo ./jdk-6u6-linux-i586.bin
  
  # Click space button to read through the license agreement, and input "yes" when being prompted.
  

• Make a symbolic link to make the life easier in the future

  sudo ln -s ./jdk1.6.0_06/ ./jdk1.6
  
  # From now on, you can point the JAVA_HOME to /opt/jdk1.6
  

• Put Java into system alternatives:

  sudo alternatives --install /usr/bin/java java /opt/jdk1.6/bin/java 1
  sudo alternatives --config java
  
  # You would see the following screen:
  There is 1 program that provides 'java'.
  
    Selection    Command
  -----------------------------------------------
  *+ 1           /opt/jdk1.6/bin/java
  
  Enter to keep the current selection[+], or type selection number:
  
  # We don't have other options, so just select 1.

注意的一点是在ubuntu中alternatives用update-alternatives替换。

评论

1 楼 mqqqvpppm 2009-05-17  

你好我初学linux,请问,你的第二步之后,怎么设置JAVA_HOME 为 jdk1.6.
之后装了多个jdk后用 sudo alternatives --config java
切换jdk和你说的第二步中point JAVA_HOME to jdk1.6 有冲突马?比如我在装一个jdk1.4.xxx symbolic link 为jdk1.4,这样我要切换jdk时还需要在指定一次JAVA_HOME吗?