<servlet>
<servlet-name>HitcountServlet</servlet-name>
<servlet-class>servlet.HitCounterServlet</servlet-class>
<load-on-startup>-1</load-on-startup>
</servlet>
果断碉堡了:(
不是说负数时,第一次调用才会加载这个Servlet么:(不是啊
-1就是在初始化service前加载配置
+1就是在初始化service运行后加载配置
默认的不添加的时候就是在第一次调用的时候加载servlet
他说的应该是servet 估计敲错了Servlet specification:
The load-on-startup element indicates that this servlet should be loaded (instantiated and have its init() called) on the startup of the web application. The optional contents of these element must be an integer indicating the order in which the servlet should be loaded. If the value is a negative integer, or the element is not present, the container is free to load the servlet whenever it chooses. If the value is a positive integer or 0, the container must load and initialize the servlet as the application is deployed. The container must guarantee that servlets marked with lower integers are loaded before servlets marked with higher integers. The container may choose the order of loading of servlets with the same load-on-start-up value.
翻译过来的意思大致如下:
1)load-on-startup元素标记容器是否在启动的时候就加载这个servlet(实例化并调用其init()方法)。
2)它的值必须是一个整数,表示servlet应该被载入的顺序
2)当值为0或者大于0时,表示容器在应用启动时就加载并初始化这个servlet;
3)当值小于0或者没有指定时,则表示容器在该servlet被选择时才会去加载。
4)正数的值越小,该servlet的优先级越高,应用启动时就越先加载。
5)当值相同时,容器就会自己选择顺序来加载。
学习了,待考证设置成负数就跟没有设置一样,当第一次调用servlet时才进行servlet初始化。
------解决方案--------------------------------------------------------
嗯 了解,我一下没反应过来
service服务
servlet的流程是
new
init
service
destory
一般主要的功能就是service,所以用这个代替