JAVAWEB网上商城项目实现controller层的业务三------JAVA

﹏ヽ暗。殇╰゛Y 2024-03-03 08:59 54阅读 0赞

>     package controller;
>     
>     import bean.user;
>     import dao.Update;
>     import dao.insert;
>     import jakarta.servlet.*;
>     import jakarta.servlet.http.*;
>     import jakarta.servlet.annotation.*;
>     
>     import java.io.IOException;
>     import java.io.PrintWriter;
>     
>     @WebServlet(name = "controller.ChangeServlet", urlPatterns = "/controller.ChangeServlet")
>     public class ChangeServlet extends HttpServlet {
>         @Override
>         protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
>             this.doPost(request,response);
>         }
>     
>         @Override
>         protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
>             String email = request.getParameter("email");
>             String password  = request.getParameter("password");
>             user user = new user(null,password,email);
>             response.setContentType("text/html;charset=GBK");
>             PrintWriter out = response.getWriter();
>             int count = new Update().ChangePassword(user);
>             if(count == 1)
>             {
>                 out.println("<script>alert(\"修改成功\");</script>");
>                 out.println("<script>window.location.href='information.jsp'</script>");
>             }
>             else
>             {
>                 out.println("<script>alert(\"修改失败,请稍后重新尝试\");</script>");
>                 out.println("<script>window.location.href='information.jsp'</script>");
>             }
>         }
>     }
> 
>     package controller;
>     
>     import bean.user;
>     import dao.Update;
>     import dao.insert;
>     import jakarta.servlet.*;
>     import jakarta.servlet.http.*;
>     import jakarta.servlet.annotation.*;
>     
>     import java.io.IOException;
>     import java.io.PrintWriter;
>     
>     @WebServlet(name = "controller.ChangeServlet", urlPatterns = "/controller.ChangeServlet")
>     public class ChangeServlet extends HttpServlet {
>         @Override
>         protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
>             this.doPost(request,response);
>         }
>     
>         @Override
>         protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
>             String email = request.getParameter("email");
>             String password  = request.getParameter("password");
>             user user = new user(null,password,email);
>             response.setContentType("text/html;charset=GBK");
>             PrintWriter out = response.getWriter();
>             int count = new Update().ChangePassword(user);
>             if(count == 1)
>             {
>                 out.println("<script>alert(\"修改成功\");</script>");
>                 out.println("<script>window.location.href='information.jsp'</script>");
>             }
>             else
>             {
>                 out.println("<script>alert(\"修改失败,请稍后重新尝试\");</script>");
>                 out.println("<script>window.location.href='information.jsp'</script>");
>             }
>         }
>     }

>     package controller;
>     
>     import dao.Update;
>     import jakarta.servlet.*;
>     import jakarta.servlet.http.*;
>     import jakarta.servlet.annotation.*;
>     
>     import java.io.IOException;
>     import java.io.PrintWriter;
>     
>     @WebServlet(name = "controller.DeleteServlet", urlPatterns = "/controller.DeleteServlet")
>     public class DeleteServlet extends HttpServlet
>     {
>         @Override
>         protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
>             this.doPost(request,response);
>         }
>     
>         @Override
>         protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
>             String product_name = request.getParameter("product_name");
>             System.out.println(product_name);
>             int delNum = new Update().DelProduct(product_name);
>             response.setContentType("text/html;charset=GBK");
>             PrintWriter printWriter = response.getWriter();
>             if(delNum == 1)
>             {
>                 printWriter.println("<script>alert(\"删除成功\");</script>");
>                 printWriter.println("<script>window.location.href='http://localhost:8080/html/ProductDelete.jsp'</script>");
>             }
>             else
>             {
>                 printWriter.println("<script>alert(\"删除失败\");</script>");
>                 printWriter.println("<script>window.location.href='http://localhost:8080/html/ProductDelete.jsp'</script>");
>             }
>         }
>     }
> 
>     package controller;
>     
>     import dao.Update;
>     import jakarta.servlet.*;
>     import jakarta.servlet.http.*;
>     import jakarta.servlet.annotation.*;
>     
>     import java.io.IOException;
>     import java.io.PrintWriter;
>     
>     @WebServlet(name = "controller.DeleteServlet", urlPatterns = "/controller.DeleteServlet")
>     public class DeleteServlet extends HttpServlet
>     {
>         @Override
>         protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
>             this.doPost(request,response);
>         }
>     
>         @Override
>         protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
>             String product_name = request.getParameter("product_name");
>             System.out.println(product_name);
>             int delNum = new Update().DelProduct(product_name);
>             response.setContentType("text/html;charset=GBK");
>             PrintWriter printWriter = response.getWriter();
>             if(delNum == 1)
>             {
>                 printWriter.println("<script>alert(\"删除成功\");</script>");
>                 printWriter.println("<script>window.location.href='http://localhost:8080/html/ProductDelete.jsp'</script>");
>             }
>             else
>             {
>                 printWriter.println("<script>alert(\"删除失败\");</script>");
>                 printWriter.println("<script>window.location.href='http://localhost:8080/html/ProductDelete.jsp'</script>");
>             }
>         }
>     }

>     package controller;
>     
>     import Service.GetCart;
>     import bean.user;
>     import dao.Update;
>     import jakarta.servlet.*;
>     import jakarta.servlet.http.*;
>     import jakarta.servlet.annotation.*;
>     
>     import java.io.IOException;
>     import java.io.PrintWriter;
>     
>     @WebServlet(name = "controller.DelServlet", urlPatterns = "/controller.DelServlet")
>     public class DelServlet extends HttpServlet {
>         @Override
>         protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
>             this.doPost(request,response);
>         }
>     
>         @Override
>         protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
>         {
>             PrintWriter printWriter = response.getWriter();
>             response.setContentType("text/html;charset=GBK");
>             HttpSession session = request.getSession();
>             user user = (bean.user) session.getAttribute("user");
>             if(new Update().delCart(user.getEmail()) == 1)
>             {
>                 user.setShoppingCart(new GetCart().getCart(user));
>                 printWriter.println("<script>alert(\"删除成功\");</script>");
>                 printWriter.println("<script>window.location.href='buycar.jsp'</script>");
>             }
>         }
>     }
> 
>     package controller;
>     
>     import Service.GetCart;
>     import bean.user;
>     import dao.Update;
>     import jakarta.servlet.*;
>     import jakarta.servlet.http.*;
>     import jakarta.servlet.annotation.*;
>     
>     import java.io.IOException;
>     import java.io.PrintWriter;
>     
>     @WebServlet(name = "controller.DelServlet", urlPatterns = "/controller.DelServlet")
>     public class DelServlet extends HttpServlet {
>         @Override
>         protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
>             this.doPost(request,response);
>         }
>     
>         @Override
>         protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException
>         {
>             PrintWriter printWriter = response.getWriter();
>             response.setContentType("text/html;charset=GBK");
>             HttpSession session = request.getSession();
>             user user = (bean.user) session.getAttribute("user");
>             if(new Update().delCart(user.getEmail()) == 1)
>             {
>                 user.setShoppingCart(new GetCart().getCart(user));
>                 printWriter.println("<script>alert(\"删除成功\");</script>");
>                 printWriter.println("<script>window.location.href='buycar.jsp'</script>");
>             }
>         }
>     }