servlet:
public class HelloServlet extends HttpServlet{
public HelloServlet() {
System.out.println("helloServlet被創建!");
}
}
web.xml:
<!-- 工程名 -->
<display-name>20200623_day26_Servlet</display-name>
<servlet>
<!-- 該servlet在配置文件中的標誌 -->
<servlet-name>HelloServlet</servlet-name>
<!-- 該servlet的實現類的長類名 -->
<servlet-class>com.wance.servlet.HelloServlet</servlet-class>
</servlet>
<!-- 該serlvet組件在url中的訪問路徑 -->
<servlet-mapping>
<!-- 必須和上面的servlet-name一樣 -->
<servlet-name>HelloServlet</servlet-name>
<!-- url訪問名稱 -->
<url-pattern>/HelloServlet</url-pattern>
</servlet-mapping>
<welcome-file-list>
<welcome-file>index.html</welcome-file>
<welcome-file>index.htm</welcome-file>
<welcome-file>index.jsp</welcome-file>
<welcome-file>default.html</welcome-file>
<welcome-file>default.htm</welcome-file>
<welcome-file>default.jsp</welcome-file>
</welcome-file-list>