问题描述

这是我驱动器上的地址:

Here's the address on my drive:

C:Program FilesJavajdk1.6.0_18in

C:Program FilesJavajdk1.6.0_18in

我将如何设置路径变量，以便我可以进入命令窗口 (windowskey+r "cmd") 并能够输入如下内容:

How would I go about setting the path variable so I can go in command window (windowskey+r "cmd") and be able to type things like:

javac TestApp.java

我使用的是 Windows 7 专业版.

I'm using Windows 7 Professional.

推荐答案

每次启动时在命令 shell 中键入 SET PATH 命令可能会让你很快变老.三种选择:

Typing the SET PATH command into the command shell every time you fire it up could get old for you pretty fast. Three alternatives:

1. 从批处理 (.CMD) 文件运行 javac.然后，您可以在执行 javac 之前将 SET PATH 放入该文件中.或者，如果您只是编写 javac.exe
的显式路径，则可以不使用 SET PATH
2. 在系统的环境变量"配置中设置增强的、改进的 PATH.
3. 从长远来看，您会希望使用 Ant 自动编译 Java.但这需要首先对 PATH 进行另一个扩展，这使我们回到 (1) 和 (2).

1. Run javac from a batch (.CMD) file. Then you can just put the SET PATH into that file before your javac execution. Or you could do without the SET PATH if you simply code the explicit path to javac.exe
2. Set your enhanced, improved PATH in the "environment variables" configuration of your system.
3. In the long run you'll want to automate your Java compiling with Ant. But that will require yet another extension to PATH first, which brings us back to (1) and (2).