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Windows7系统如何运行jar文件

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　　jar文件是java程序导出之后的打包文件，在一些Linux系统或者手机系统中可以直接运行。但是大部分用户现在使用的都是Win7系统，而在Win7系统下是不可以直接运行jar文件的，必须要借用第三方软件才可以。下面就由小编来为大家讲解如何在Win7系统下运行jar文件。

　　1.如下图，这就是一个标准的jar文件，在大多数的用户系统之中其图标会变成压缩包图标，这是因为在当前系统之中压缩包把jar和自己关联了起来。

　　2.下载Java SE Development Kit (JDK)(注意并不是jre，下面会详细说明原因)。

　　3.jdk的安装过程倒是十分简单，因为都是基于win7 64位 install的安装包。只要点击下一步就可以完成安装。

　　4.安装之后回到本地目录，右键jar文件，选择打开方式，这个时候你会发现打开方式列表之中会有Java(TM) Platform SE选项，这里点击这个选项。

　　5.jar程序包成功的运行了起来。

　　之所以不推荐安装jre而是安装jdk的原因其实在于jre并不会添加右键打开菜单，用户自身也并不一定可以使用命令运行成功，在这种情况之下选择安装jdk显然是最合适的。

　　这样你就可以直接在Win7系统下运行jar文件了。jdk这款软件不但好用，而且功能非常多，除了运行jar文件，还能运用到编程开发中，特别对于那些java开发员来说，使用jdk可以让你的工作效率得到非常大的提高。

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