对Web中的Action使用反射与否影响不大 博客分类： Java WebJDKXP软件测试C

感觉反射调用对整个Web过程来说可以忽略不计哦，虽然和直接调用相差还是蛮大的

我机器(945主板、Celeron D 3.06、1G内存、XP系统)的测试结果：
不添加干扰方法
:797
:109

添加了干扰方法后

:812
:120


大家可以做下测试，代码如下

package example;

import java.lang.reflect.Method;

public class Methoder {

	public static void main(String[] args) throws Exception {
		long start = System.currentTimeMillis();
		for (int i = 0; i < 100000; ++i) {
			p1();
		}
		System.out.println(":" + (System.currentTimeMillis() - start));
		start = System.currentTimeMillis();
		for (int i = 0; i < 100000; ++i) {
			p2();
		}
		System.out.println(":" + (System.currentTimeMillis() - start));
	}

	public static void p1() throws Exception {
		Test t = new Test();
		Class c = t.getClass();
		Method m = c.getMethod("sayHello", new Class[0]);
		m.invoke(t, new Object[0]);
	}

	public static void p2() throws Exception {
		Test t = new Test();
		t.sayHello();
	}

}

class Test {
	public void sayHello() {
		//		System.out.println("Test:");
		int l = 0;
		for (int i = 0; i < 1000; ++i) {
			l += i;
		}
	}

	// 以下方法为干扰用，但是两种调用方法都时间延长了点
	public void sayHello1() {
	}

	public void sayHello2() {
	}

	public void sayHello3() {
	}

	public void sayHello4() {
	}

	public void sayHello5() {
	}

	public void sayHello6() {
	}

	public void sayHello7() {
	}

	public void sayHello8() {
	}

	public void sayHello9() {
	}

	public void sayHello10() {
	}

	public void sayHello11() {
	}

	public void sayHello12() {
	}

	public void sayHello13() {
	}

	public void sayHello14() {
	}

	public void sayHello15() {
	}

	public void sayHello16() {
	}

	public void sayHello17() {
	}

	public void sayHello18() {
	}

	public void sayHello19() {
	}

	public void sayHello20() {
	}

	public void sayHello21() {
	}

	public void sayHello22() {
	}

	public void sayHello23() {
	}

	public void sayHello24() {
	}

	public void sayHello25() {
	}

	public void sayHello26() {
	}

	public void sayHello27() {
	}

	public void sayHello28() {
	}

	public void sayHello29() {
	}

	public void sayHello30() {
	}

}