JAVAWEB网上商城项目实现controller层的业务一------JAVA

不念不忘少年蓝@ 2024-03-03 08:59 73阅读 0赞

>     package controller;
>     
>     import Service.AddProduct;
>     import Service.GetCart;
>     import bean.user;
>     import dao.select;
>     import jakarta.servlet.*;
>     import jakarta.servlet.http.*;
>     import jakarta.servlet.annotation.*;
>     import java.io.IOException;
>     import java.io.PrintWriter;
>     
>     @WebServlet(name = "controller.AddCarServlet", urlPatterns = "/controller.AddCarServlet")
>     public class AddCarServlet 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");
>             String email = request.getParameter("email");
>             user user = new select().getUser(email);
>             int count = Integer.parseInt(request.getParameter("count"));
>             response.setContentType("text/html;charset=GBK");
>             PrintWriter printWriter = response.getWriter();
>             if(email == null)
>             {
>                 printWriter.println("<script>alert(\"您需要先登录\");</script>");
>                 printWriter.println("<script>window.location.href='product.jsp'</script>");
>             }
>             else
>             {
>                 new AddProduct().addProduct(email,product_name,count);
>                 user.setShoppingCart(new GetCart().getCart(user));
>                 request.getSession().setAttribute("user",user);
>                 printWriter.println("<script>window.location.href='product.jsp'</script>");
>             }
>         }
>     }
> 
>     package controller;
>     
>     import Service.AddProduct;
>     import Service.GetCart;
>     import bean.user;
>     import dao.select;
>     import jakarta.servlet.*;
>     import jakarta.servlet.http.*;
>     import jakarta.servlet.annotation.*;
>     import java.io.IOException;
>     import java.io.PrintWriter;
>     
>     @WebServlet(name = "controller.AddCarServlet", urlPatterns = "/controller.AddCarServlet")
>     public class AddCarServlet 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");
>             String email = request.getParameter("email");
>             user user = new select().getUser(email);
>             int count = Integer.parseInt(request.getParameter("count"));
>             response.setContentType("text/html;charset=GBK");
>             PrintWriter printWriter = response.getWriter();
>             if(email == null)
>             {
>                 printWriter.println("<script>alert(\"您需要先登录\");</script>");
>                 printWriter.println("<script>window.location.href='product.jsp'</script>");
>             }
>             else
>             {
>                 new AddProduct().addProduct(email,product_name,count);
>                 user.setShoppingCart(new GetCart().getCart(user));
>                 request.getSession().setAttribute("user",user);
>                 printWriter.println("<script>window.location.href='product.jsp'</script>");
>             }
>         }
>     }

>     package controller;
>     
>     import dao.insert;
>     import jakarta.servlet.*;
>     import jakarta.servlet.http.*;
>     import jakarta.servlet.annotation.*;
>     import bean.product;
>     
>     import java.io.IOException;
>     import java.io.PrintWriter;
>     
>     @WebServlet(name = "controller.AddProductServlet", urlPatterns = "/controller.AddProductServlet")
>     public class AddProductServlet 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");
>             String brand_name = request.getParameter("brand_name");
>             PrintWriter out = response.getWriter();
>             response.setContentType("text/html;charset=GBK");
>             int amount = Integer.parseInt(request.getParameter("amount"));
>             double price = Double.parseDouble(request.getParameter("price"));
>             String description = request.getParameter("type_name");
>             String type_name = request.getParameter("type_name");
>             product product = new product(product_name,brand_name,amount,price,description,type_name,null);
>             System.out.println(product.toString());
>             int count = new insert().AddProduct(product);
>             if(count == 1)
>             {
>                 out.println("<script>alert(\"添加成功\");</script>");
>                 out.println("<script>window.location.href='http://localhost:8080/html/ProductNew.jsp'</script>");
>             }
>             else
>             {
>                 out.println("<script>alert(\"添加失败\");</script>");
>                 out.println("<script>window.location.href='http://localhost:8080/html/ProductNew.jsp'</script>");
>             }
>         }
>     }
> 
>     package controller;
>     
>     import dao.insert;
>     import jakarta.servlet.*;
>     import jakarta.servlet.http.*;
>     import jakarta.servlet.annotation.*;
>     import bean.product;
>     
>     import java.io.IOException;
>     import java.io.PrintWriter;
>     
>     @WebServlet(name = "controller.AddProductServlet", urlPatterns = "/controller.AddProductServlet")
>     public class AddProductServlet 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");
>             String brand_name = request.getParameter("brand_name");
>             PrintWriter out = response.getWriter();
>             response.setContentType("text/html;charset=GBK");
>             int amount = Integer.parseInt(request.getParameter("amount"));
>             double price = Double.parseDouble(request.getParameter("price"));
>             String description = request.getParameter("type_name");
>             String type_name = request.getParameter("type_name");
>             product product = new product(product_name,brand_name,amount,price,description,type_name,null);
>             System.out.println(product.toString());
>             int count = new insert().AddProduct(product);
>             if(count == 1)
>             {
>                 out.println("<script>alert(\"添加成功\");</script>");
>                 out.println("<script>window.location.href='http://localhost:8080/html/ProductNew.jsp'</script>");
>             }
>             else
>             {
>                 out.println("<script>alert(\"添加失败\");</script>");
>                 out.println("<script>window.location.href='http://localhost:8080/html/ProductNew.jsp'</script>");
>             }
>         }
>     }

>     package controller;
>     
>     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.ADDServlet", urlPatterns = "/controller.ADDServlet")
>     public class ADDServlet 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");
>             int NewAmount = Integer.parseInt(request.getParameter("NewAmount"));
>             response.setContentType("text/html;charset=GBK");
>             PrintWriter printWriter = response.getWriter();
>             int result = new Update().AddNUM(NewAmount,product_name);
>             if(result == 1)
>             {
>                 printWriter.println("<script>alert(\"添加成功\");</script>");
>                 printWriter.println("<script>window.location.href='http://localhost:8080/html/ProductAdd.jsp'</script>");
>             }
>             else
>             {
>                 printWriter.println("<script>alert(\"添加失败\");</script>");
>                 printWriter.println("<script>window.location.href='http://localhost:8080/html/ProductAdd.jsp'</script>");
>             }
>         }
>     }
> 
>     package controller;
>     
>     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.ADDServlet", urlPatterns = "/controller.ADDServlet")
>     public class ADDServlet 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");
>             int NewAmount = Integer.parseInt(request.getParameter("NewAmount"));
>             response.setContentType("text/html;charset=GBK");
>             PrintWriter printWriter = response.getWriter();
>             int result = new Update().AddNUM(NewAmount,product_name);
>             if(result == 1)
>             {
>                 printWriter.println("<script>alert(\"添加成功\");</script>");
>                 printWriter.println("<script>window.location.href='http://localhost:8080/html/ProductAdd.jsp'</script>");
>             }
>             else
>             {
>                 printWriter.println("<script>alert(\"添加失败\");</script>");
>                 printWriter.println("<script>window.location.href='http://localhost:8080/html/ProductAdd.jsp'</script>");
>             }
>         }
>     }