CentOS 安装jdk1.7 64位

水深无声 2022-08-06 13:20 215阅读 0赞

[root@localhost ~]# java -version
    java version "1.6.0"
    OpenJDK  Runtime Environment (build 1.6.0-b09)
    OpenJDK 64-Bit Server VM (build 1.6.0-b09, mixed mode)

1.6的，这个必须换掉 。下载jdk-7u3-linux-x64.rpm

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      <code># wget <a href="http://download.oracle.com/otn-pub/java/jdk/7u3-b04/jdk-7u3-linux-x64.rpm" rel="nofollow"> http://download.oracle.com/otn-pub/java/jdk/7u3-b04/jdk-7u3-linux-x64.rpm</a></code> 
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      <code>--2012-02-28 00:13:34--&nbsp; http:</code> 
      <code>//download.oracle.com/otn-pub/java/jdk/7u3-b04/jdk-7u3-linux-x64.rpm</code> 
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      <code>正在解析主机 download.oracle.com... 63.97.94.56, 63.97.94.80</code> 
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      <code>Connecting to download.oracle.com|63.97.94.56|:80... 已连接。</code> 
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      <code>已发出 HTTP 请求，正在等待回应... 200 OK</code> 
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      <code>长度：67667318 (65M) [application/x-redhat-package-manager]</code> 
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      <code>Saving to: `jdk-7u3-linux-x64.rpm'</code> 
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       &nbsp; 
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      <code>65% [===============================================&gt;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ] 44,088,409&nbsp; 50.1K/s&nbsp; eta 7m 23s&nbsp; </code> 
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速度不咋的，可以用迅雷之类的下了传上去。

运行安装

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      <code># rpm -ivh jdk-7u3-linux-x64.rpm </code> 
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      <code>Preparing...&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ########################################### [100%]</code> 
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      <code>&nbsp;&nbsp;&nbsp;</code> 
      <code>1:jdk&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ########################################### [100%]</code> 
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      <code>Unpacking JAR files...</code> 
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      <code>&nbsp;&nbsp;&nbsp;&nbsp;</code> 
      <code>rt.jar...</code> 
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      <code>&nbsp;&nbsp;&nbsp;&nbsp;</code> 
      <code>jsse.jar...</code> 
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      <code>&nbsp;&nbsp;&nbsp;&nbsp;</code> 
      <code>charsets.jar...</code> 
     </div> 
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      <code>&nbsp;&nbsp;&nbsp;&nbsp;</code> 
      <code>tools.jar...</code> 
     </div> 
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      <code>&nbsp;&nbsp;&nbsp;&nbsp;</code> 
      <code>localedata.jar...</code> 
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\# vim /etc/profile

修改profile 最后面加入

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      <code>export JAVA_HOME=/usr/java/jdk1.7.0_03</code> 
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      <code>export CLASSPATH=.:$JAVA_HOME/jre/lib/rt.jar:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar</code> 
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      <code>export PATH=$PATH:$JAVA_HOME/bin</code> 
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保存退出。运行 \#source /etc/profile

之后 运行

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      <code># update-alternatives --install /usr/bin/java java /usr/java/jdk1.7.0_03/bin/java 60</code> 
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      <code># update-alternatives --config java</code> 
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你会看到我的ssh中存在乱码。

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      <code>*+ 1&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /usr/lib/jvm/jre-1.6.0-openjdk.x86_64/bin/java</code> 
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      <code>&nbsp;&nbsp;&nbsp;</code> 
      <code>2&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /usr/lib/jvm/jre-1.4.2-gcj/bin/java</code> 
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      <code>&nbsp;&nbsp;&nbsp;</code> 
      <code>3&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; /usr/java/jdk1.7.0_03/bin/java</code> 
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输入3 敲回车

然后一切ok

\# java -version  
java version "1.7.0\_03"  
Java(TM) SE Runtime Environment (build 1.7.0\_03-b04)  
Java HotSpot(TM) 64-Bit Server VM (build 22.1-b02, mixed mode)