* 首先是apache的exp,看看效率如何
*/
final StopWatch clock = new StopWatch("Performance");
clock.start("jexl2");
for(int i=0;i<count;i++){
Configuration conf = new Configuration();
ExpressionParser exprParser = new ExpressionParser( test, beans, conf );
Expression testExpr = exprParser.parse();
try {
result = (Boolean) testExpr.evaluate();
} catch (Exception e) {