userloginservlet.java

来自「网上购物系统」· Java 代码 · 共 53 行

JAVA
53
字号
package Control_UserLogin;
import Model_UserLogin.UserLogin;
import Model_UserLogin.UserLoginBean;
import javax.servlet.*;
import javax.servlet.http.*;
import java.io.PrintWriter;
import java.io.IOException;

public class UserLoginServlet extends HttpServlet 
{
  private static final String CONTENT_TYPE = "text/html; charset=GBK";

  public void init(ServletConfig config) throws ServletException
  {
    super.init(config);
  }

  public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
  {
    response.setContentType(CONTENT_TYPE);
    PrintWriter out = response.getWriter();
    out.println("<html>");
    out.println("<head><title>UserLoginServlet</title></head>");
    out.println("<body>");
    out.println("<p>The servlet has received a GET. This is the reply.</p>");
    out.println("</body></html>");
    out.close();
  }

  public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
  {
    response.setContentType(CONTENT_TYPE);
    PrintWriter out = response.getWriter();
    UserLogin ul=new UserLogin();
    UserLoginBean ulb=new UserLoginBean();
    
    ul.setLoginID(request.getParameter("LoginID"));
    ul.setPwd(request.getParameter("Pwd"));
    
    String Loginid=ulb.FinduserLogin(ul);
    if (Loginid.equals("用户不存在"))
    {
      response.sendRedirect("LoginFalse.jsp");
    }
    else
    {
      HttpSession hs=request.getSession(true);
      hs.setAttribute("Login",ul.getLoginID());
      response.sendRedirect("Logined.jsp?Loginid="+ul.getLoginID());
    }
    out.close();
  }
}

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