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CentOS 安装jdk1.7 64位
- [root@localhost ~]# java -versionjava version "1.6.0"OpenJDK Runtime Environment (build 1.6.0-b09)OpenJDK 64-Bit Server VM (build 1.6.0-b09, mixed mode)
- 复制代码
复制代码 1.6的,这个必须换掉 。下载jdk-7u3-linux-x64.rpm
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- # wget http://download.oracle.com/otn-pub/java/jdk/7u3-b04/jdk-7u3-linux-x64.rpm--2012-02-28 00:13:34-- http://download.oracle.com/otn-pub/java/jdk/7u3-b04/jdk-7u3-linux-x64.rpm正在解析主机 download.oracle.com... 63.97.94.56, 63.97.94.80Connecting to download.oracle.com|63.97.94.56|:80... 已连接。已发出 HTTP 请求,正在等待回应... 200 OK长度:67667318 (65M) [application/x-redhat-package-manager]Saving to: `jdk-7u3-linux-x64.rpm' 65% [===============================================> ] 44,088,409 50.1K/s eta 7m 23s
- 速度不咋的,可以用迅雷之类的下了传上去。
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- 运行安装
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- # rpm -ivh jdk-7u3-linux-x64.rpm Preparing... ########################################### [100%] 1:jdk ########################################### [100%]Unpacking JAR files... rt.jar... jsse.jar... charsets.jar... tools.jar... localedata.jar...
- # vim /etc/profile
复制代码 修改profile 最后面加入
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- export JAVA_HOME=/usr/java/jdk1.7.0_03export CLASSPATH=.:$JAVA_HOME/jre/lib/rt.jar:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jarexport PATH=$PATH:$JAVA_HOME/bin
复制代码 保存退出。运行 #source /etc/profile
之后 运行
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- # update-alternatives --install /usr/bin/java java /usr/java/jdk1.7.0_03/bin/java 60# update-alternatives --config java
复制代码 你会看到我的ssh中存在乱码。
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- *+ 1 /usr/lib/jvm/jre-1.6.0-openjdk.x86_64/bin/java 2 /usr/lib/jvm/jre-1.4.2-gcj/bin/java 3 /usr/java/jdk1.7.0_03/bin/java
复制代码 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)
复制代码 |
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