Java直接调用python脚本

示例代码如下：

import java.io.BufferedReader;
import java.io.InputStreamReader;

public class Main {
	public static void main(String[] args) {
		try {
			System.out.println("start");
			Process pr = Runtime.getRuntime().exec("python test.py");

			BufferedReader in = new BufferedReader(new InputStreamReader(
					pr.getInputStream()));
			String line;
			while ((line = in.readLine()) != null) {
				System.out.println(line);
			}
			in.close();
			pr.waitFor();
			System.out.println("end");
		} catch (Exception e) {
			e.printStackTrace();
		}
	}
}

如果在eclipse中直接运行报如下错误：

java.io.IOException: Cannot run program "python": CreateProcess error=2

则配置Run Configuration中的Enviroment，增加PATH变量，见下图：