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Home Database Mysql Tutorial dos命令下运行java程序(链接mysql为例子)

dos命令下运行java程序(链接mysql为例子)

Jun 07, 2016 pm 02:50 PM
dos java mysql example Order program run Link

1 说明 使用了阿里云的Windows版的服务器,想在上面运行连接数据库的Java程序,然后就不知道,怎么运行起来。我是直接把eclipse中的文件拷到服务器上的。所有的.class 文件已经编译完成,只是不知道怎么在服务器上运行起来。 问题点1 :找不到要运行的类 问

1 说明

使用了阿里云的Windows版的服务器,想在上面运行连接数据库的Java程序,然后就不知道,怎么运行起来。我是直接把eclipse中的文件拷到服务器上的。所有的.class 文件已经编译完成,只是不知道怎么在服务器上运行起来。
问题点1 :找不到要运行的类
这里写图片描述
问题点2 :找不到驱动,也就是无法运行导入的jar包
这里写图片描述

问题1的解决:
–因为我的DBHelper文件中包含有package
package mydatahelper;
所以运行时类名称则写为 mydatahelper.DBHelper,一般都要将运行目录后退到包名之前,再运行。
问题2的解决:
–显然要导入新的包,也就是jar包,我这里把含有mysql驱动的jar包放在lib文件夹中,该文件夹又放置在和mydatahelper文件夹同一级别目录下。

运行如下:

<code class=" hljs avrasm">java -Djava<span class="hljs-preprocessor">.ext</span><span class="hljs-preprocessor">.dirs</span>=./lib mydatahelper<span class="hljs-preprocessor">.DBHelper</span> </code>
Copy after login

最终运行结果

文件目录如下:
这里写图片描述
这里写图片描述
这里写图片描述

参考:
命令行执行Java程序加载指定目录中的Jar文件

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