servlets - Struts hello world 示例

Question

我有一个具体的疑问。

在示例中，hello world 示例在浏览器中输入 URL 后，控件是转到 action servlet 还是 index.jsp 页面？我很困惑，因为在 web.xml 中，欢迎文件是 index.jsp。

Answer 1

When ever the request comes from the browser the struts controller(ActionServlet) will checks the url-pattern of *.do from servlet-mapping tag in web.xml.

Every request should come to web.xml before to process mappings. Based on mappings it goes next to struts-config.xml file to which action or form should call.

you can look into this Simple Struts Login Application

Answer 2

只有*.do被映射到 ActionServlet。因此，只有以 结尾的 url*.do才会转到 ActionServlet。