JAVAEE中用Session简单实现购物车功能示例代码-创新互联

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Session简单实现购物车功能

这个小程序主要就3个页面，一个商品列表页面(HomeServlet)，一个是提示加入购物车页面(AddCartTipServlet)，一个是显示购物车清单页面(ShowCartServlet)。

HomeServlet页面：

@WebServlet({ "/HomeServlet", "/home" })
public class HomeServlet extends HttpServlet {
  private static final long serialVersionUID = 1L;

  public HomeServlet() {
    super();
  }

  protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {

    request.setCharacterEncoding("utf-8");
    response.setContentType("text/html;charset=utf-8");
    PrintWriter out = response.getWriter();
    out.print("
书单

");
    out.print("人类简史加入购物车
");
    out.print("未来简史加入购物车
");
    out.print("世界简史加入购物车
");
    out.print("时间简史加入购物车
");
    out.print("查看购物车
");
  }

  protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
    doGet(request, response);
  }

}