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.
这个 load-on-startup 元素 在 web 应用启动的时候指定了servlet被加载的顺序，它的值必须是一个整数。如果它的值是一个负整数或是这个元素不存在，那么容器会在该servlet被调用的时候，加载这个servlet 。如果值是正整数或零，容器在配置的时候就加载并初始化这个servlet，容器必须保证值小的先被加载。如果值相等，容器可以自动选择先加载谁。
posted on 2008-03-11 09:10
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