jfinal-layui使用拦截器实现的日志打印功能，其它框架也可以借鉴

源码

/**
 * 日志拦截，查看执行耗时
 *
 * @author admin
 */
public class LogInterceptor implements Interceptor {

	@Override
	public void intercept(Invocation inv) {
		long start = System.currentTimeMillis();
		try {
			inv.invoke();
		} finally {
			long usedTime = System.currentTimeMillis() - start;
			//遍历出所有参数，数组的话用逗号分开显示所有参数
			String args = "";
			Map<String, String[]> parameterMap = (((BaseController) inv.getTarget()).getRequest()).getParameterMap();
			for (String s : parameterMap.keySet()) {
				args += s + "=";
				for (String value : parameterMap.get(s)) {
					args += value + ",";
				}
				args = args.substring(0, args.length() - 1) + ";";
			}
			if (StrKit.notBlank(args)) {
				args = args.substring(0, args.length() - 1);
			}
			System.out.println("--------------------------------------------------------------------------------");
			// 请求URL
			System.out.println("Url           : " + inv.getActionKey());
			// 请求控制层全名
			System.out.println("Controller    : " + inv.getController());
			// 请求方法名
			System.out.println("Method        : " + inv.getMethodName());
			// 参数非空则显示
			if (StrKit.notBlank(args)) {
				System.out.println("Parameter     : " + args);
			}
			// 方法执行耗时
			System.out.println("TimeConsuming : " + usedTime + "ms");
			System.out.println("--------------------------------------------------------------------------------");
		}
	}
}

实现效果：

--------------------------------------------------------------------------------
Url           : /generator/code/getTemplatesContents
Controller    : com.gen.portal.generator.controller.CodeController@26c51925
Method        : getTemplatesContents
Parameter     : title=_all_code
TimeConsuming : 21ms
--------------------------------------------------------------------------------