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layout: post keywords: blog description: blog title: "Mac下安装和管理Java" categories: [Android] tags: [Java]

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{% include codepiano/setup %}

Mac OSX 10.9以后系统就自带了Java 6的环境，路径在:

{% highlight ruby %} /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home {% endhighlight %}

如果想要安装升级到Java 7的环境，步骤如下：

• 1.到Oracle官网下载系统对应JDK7的安装包, 地址在这里,安装成功后JDK7默认的路径在:

{% highlight ruby %} /Library/Java/JavaVirtualMachines/jdk1.7.0_60.jdk/Contents/Home {% endhighlight %}

• 2.安装成功后配置环境变量

在.bash_profile文件中添加：

{% highlight ruby %} export JAVA_HOME=$(/usr/libexec/java_home) export PATH=$JAVA_HOME/bin:$PATH {% endhighlight %}

需要说明的是Mac OSX 10.5之后苹果就建议设置$JAVA_HOME变量到/usr/libexec/java_home

• 3.设置完成后输入下列命令测试下

{% highlight ruby %} $java -version java version "1.7.0_60" Java(TM) SE Runtime Environment (build 1.7.0_60-b19) Java HotSpot(TM) 64-Bit Server VM (build 24.60-b09, mixed mode)

查看系统安装的java版本

$/usr/libexec/java_home -V Matching Java Virtual Machines (3): 1.7.0_60, x86_64: "Java SE 7" /Library/Java/JavaVirtualMachines/jdk1.7.0_60.jdk/Contents/Home 1.6.0_65-b14-462, x86_64: "Java SE 6" /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home 1.6.0_65-b14-462, i386: "Java SE 6" /System/Library/Java/JavaVirtualMachines/1.6.0.jdk/Contents/Home

返回系统安装的java最高版本

$/usr/libexec/java_home /Library/Java/JavaVirtualMachines/jdk1.7.0_60.jdk/Contents/Home {% endhighlight %}