servlet点滴

注意：

1 路径问题，以地址栏上拼凑出的完整地址为准

Code
public class FormServlet extends HttpServlet
{
    private ServletConfig config = null ;
    public void init(ServletConfig config) throws ServletException
    {
        this.config = config ;
    }
    // 表示处理get请求
    public void doGet(HttpServletRequest req,HttpServletResponse resp) throws IOException,ServletException
    {
        // System.out.println("** Servlet doGet处理提交参数

") ;
        this.doPost(req,resp) ;
    }
    // 处理post请求
    public void doPost(HttpServletRequest req,HttpServletResponse resp) throws IOException,ServletException
    {
        String name = req.getParameter("uname") ;
        // 取得application对象
        // ServletContext app = this.getServletContext() ;
        ServletContext app = this.config.getServletContext() ;
        app.setAttribute("addr","www.MLDN.cn") ;
        // 取得一个session对象
        HttpSession session = req.getSession() ;
        session.setAttribute("sname",name) ;
        // System.out.println("** Servlet doPost处理提交参数

") ;
        System.out.println("name = "+name) ;
        // 重定向
        resp.sendRedirect("demo.jsp") ;
    }
};