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1.ÏÂÔØÏàÓ¦µÄjdkÈí¼þ
    ÏÂÔصØÖ· http://java.sun.com/javase/downloads/index.jsp
     ÎÒÏÂÔصÄÊÇ jdk-6u18-linux-i586.bin
2. ¿½±´µ½linux·þÎñÆ÷µÄ°²×°Ä¿Â¼ÏÂ
     ÎҵݲװĿ¼ÊÇ/var/spool/servers/,½øÈëµ½¸ÃĿ¼/var/spool/servers/
     £¨1£©ÐÞ¸Ä jdk-6u18-linux-i586.binÎļþȨÏÞΪ¿ÉÒÔȨÏÞ
             chmod a+x jdk-6u18-linux-i586.bin
             ll ²é¿´¸ÃÎļþµÄÖ´ÐÐȨÏÞ
             -rwxr-xr-x   1 root root 84738557  1ÔÂ 27 14:39 jdk-6u18-linux-i586.bin
             
      £¨2£©./jdk-6u18-linux-i586.bin
              Ê×ÏÈÏÔʾ°²×°Ð­Ò飬ȻºóÎÊÊÇ·ñͬÒ⣬ÊäÈëyes¼´¿É¡£
              °²×°Íê³Éºó»áÔÚ±¾Ä¿Â¼ÏÂÉú³É  jdk1.6.0_18 Ŀ¼¡£
              ll
              drwxr-xr-x  10 root root     4096  1ÔÂ 27 14:45 jdk1.6.0_18
3. jdkµÄ»·¾³ÅäÖÃ
    ÔÚjdk°²×°Íê³ÉºóÐèÒªÐÞ¸Ä/etc/profileÎļþ¡£
    # export JAVA_HOME=/usr/java/jdk
    export JAVA_HOME=/var/spool/servers/jdk
    export ANT_HOME=/usr/java/ant
    export CLASSPATH=.:$JAVA_HOME/lib/tools.jar
    export PATH=$PATH:$JAVA_HOME/bin:$ANT_HOME/bin
    export LANG=zh_CN
    export LC_ALL=zh_CN
    ÎÒµÄϵͳԭÀ´×°ÓÐjdk1.4°æ±¾£¬ÓÚÊÇÎÒÐ޸ĵÄJAVA_HOME£¬
    ±£´æÎļþºóÖ´ÐÐsource /etc/profile
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