Servlet复习

public class LoginServlet extends HttpServlet {
    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {


    }

    @Override
    protected void doPost(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        req.setCharacterEncoding("utf-8");
        String name = req.getParameter("username");
        String pass = req.getParameter("password");
        String[] hobbys = req.getParameterValues("hobby");
        System.out.println("*************************");
        System.out.println(name);
        System.out.println(pass);
        System.out.println(Arrays.toString(hobbys));
        System.out.println("*************************");
        //通过请求转发
        //req.getRequestDispatcher("/success.jsp").forward(req,resp);
        req.getRequestDispatcher(req.getContextPath()+"/success.jsp").forward(req,resp);
    }
}

web映射

<servlet>
    <servlet-name>LoginServlet</servlet-name>
    <servlet-class>com.kuang.servlet.LoginServlet</servlet-class>
</servlet>
<servlet-mapping>
    <servlet-name>LoginServlet</servlet-name>
    <url-pattern>/Login</url-pattern>
</servlet-mapping>