从cmd运行Jar相关的.Java [英] Run Jar related .Java from cmd

问题描述

我想从cmd promt中执行javac Classname.java，这个Classname.java需要Jfreechart libraries / jars，并且如果从eclipse编译时运行良好（因为项目包已经导入jars）。但我想从cmd提示符运行该文件，它无法显示输出。它有错误像：（包不exsist），如何解决它。我需要类文件和运行JNI命令来创建头文件。请帮帮我。谢谢 。

I am trying to do "javac Classname.java" from cmd promt, and this Classname.java requires Jfreechart libraries/jars, and runs fine if compiled from eclipse (because project package has jars imported). But I want to run the file from cmd prompt and its not able to show me the output. It comes with errors like: ("package doesn't exsist"), how to fix it. I need the class file and also run JNI commands to create header file. Please help me. Thank you .

推荐答案

您需要设置类路径。

您可以通过两种方式实现。可以使用 -classpath 或 -cp 选项：

You can do this in 2 ways. Either use the -classpath or -cp option:

javac -cp jar1.jar;path/to/jar2.jar Classname.java

或者，如果你需要它来坚持，使用 CLASSPATH 环境变量：

Or, if you need it to persist, use the CLASSPATH environmental variable:

set CLASSPATH=path1;path2
javac Classname.java

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