BeanShell资源和简单例子

http://www.beanshell.org/manual/bshmanual.htm

http://www.beanshell.org/javadoc/bsh/util/package-summary.htmll

http://www.beanshell.org/download.html

 

简单demo:

 

public class BeanShellUtil {
	public static double countMathExpress(String exp) {
		double retVal = 0d;
		Interpreter interpreter = new Interpreter();
		try {
			interpreter.eval("result=" + exp);
			retVal = Double.parseDouble(interpreter.get("result").toString());
		} catch (Exception e) {
			e.printStackTrace();
		}
		return retVal;
	}
	public static void main(String[] args) {
		System.out.println(countMathExpress("4+7*4"));
	}
}