Initial commit

WEB-INF/classes/DbCon.java

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+// package dbconnection;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.util.ResourceBundle;
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import javax.servlet.annotation.WebServlet;
+
+//jdbc packages
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Statement;
+import java.sql.PreparedStatement;
+
+@WebServlet("/DbCon")
+
+public class DbCon extends HttpServlet {
+
+    public void doPost(HttpServletRequest request, HttpServletResponse response) 
+        throws IOException, ServletException
+    {
+        //db connection
+        final String URL = "jdbc:mysql://localhost:3306/";
+        final String DB = "stockdb"; 
+        final String DRIVER = "com.mysql.cj.jdbc.Driver";
+        final String USER = "root";
+        final String PASSWORD = "Subhi#23";
+
+        response.setContentType("text/html");
+        PrintWriter out = response.getWriter();
+
+        String username = request.getParameter("username");
+        String password = request.getParameter("password");
+
+        Connection conn = null;
+        ResultSet rs = null;
+        Statement stmt = null;
+        try {
+            Class.forName(DRIVER);
+            conn = DriverManager.getConnection(URL+DB, USER, PASSWORD);
+            stmt = conn.createStatement();
+
+            String sql = "SELECT * FROM login WHERE Username='" + username + "' AND Password='" + password + "'";
+            rs = stmt.executeQuery(sql);
+
+            if (rs.next()) {
+                sql = "SELECT * FROM stock";
+                PreparedStatement pstmt = conn.prepareStatement(sql);
+                ResultSet rs1 = pstmt.executeQuery();
+
+                out.println("<link rel=\"stylesheet\" href=\"style.css\">");
+                out.println("<style>");
+                out.println("td, th{padding: 10px 15px;}");
+                out.println("table{margin: auto auto;}");
+                out.println("body{text-align: center; padding: auto 50px}");
+                out.println(".options{display: inline-block; width: 30%; float: right;}");
+                out.println(".container{ width: 50%; margin: 50px auto;}");
+                out.println("</style>");
+
+                out.println("<div class=\"container\">");
+                out.println("<h1 style=\"text-align:center\";>AVAILABLE STOCK</h1>");
+                out.println("</div>");
+
+                out.print("<div class=\"options\">");
+                    out.println("<form method=\"post\" id=\"add\" action=\"insert.html\">");
+                    out.println("<input type=\"submit\" class=\"btns\" value=\"ADD \">");
+                    out.println("</form>");
+
+                    out.println("<form method=\"post\"  id=\"edit\"action=\"edit.html\">");
+                    out.println("<input type=\"submit\" class=\"btns\"  value=\"EDIT \">");
+                    out.println("</form>");
+
+                    out.println("<form method=\"post\" id=\"delete\" action=\"Delete\">");
+                    out.println("<input type=\"text\" name=\"deleteVal\">");
+                    out.println("<input type=\"submit\" class=\"btns\" value=\"DELETE\">");
+                    out.println("<br>");
+                    out.println("</form>");
+                out.print("</div>");
+
+
+
+                out.print("<div class=\"table-container\">");
+                    out.println("<table border=\"1\">");
+                    out.println("<tr>");
+                    out.println("<th>PRODUCT ID</th>");
+                    out.println("<th>PRODUCT NAME</th>");
+                    out.println("<th>QUANTITY</th>");
+                    out.println("<th>PRICE</th>");
+                    out.println("</tr>");
+
+                    while (rs1.next()) {
+                        out.println("<tr>");
+
+                        out.println("<td>" + rs1.getInt("Product_Id") + "</td>");
+                        out.println("<td>" + rs1.getString("Product_Name") + "</td>");
+                        out.println("<td>" + rs1.getString("Product_Quantity") + "</td>");
+                        out.println("<td>" + rs1.getString("Product_Price") + "</td>");
+
+                        out.println("</tr>");
+                    }
+
+                    out.print("</table>");
+                out.print("</div>");
+            } 
+
+            else {
+                response.sendRedirect("index.html");
+            }
+        } 
+
+        catch (ClassNotFoundException | SQLException e) {
+            e.printStackTrace();
+        }
+
+        finally {
+            try {
+                if (rs != null) rs.close();
+                if (stmt != null) stmt.close();
+                if (conn != null) conn.close();
+            } catch (SQLException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+}

WEB-INF/classes/Delete.java

@@ -0,0 +1,78 @@
+// package dbconnection;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.util.ResourceBundle;
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import javax.servlet.annotation.WebServlet;
+
+//jdbc packages
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Statement;
+import java.sql.PreparedStatement;
+
+@WebServlet("/Delete")
+
+public class Delete extends HttpServlet {
+
+    public void doPost(HttpServletRequest request, HttpServletResponse response) 
+        throws IOException, ServletException
+    {
+            //db connection
+            final String URL = "jdbc:mysql://localhost:3306/";
+            final String DB = "stockdb"; 
+            final String DRIVER = "com.mysql.cj.jdbc.Driver";
+            final String USER = "root";
+            final String PASSWORD = "Subhi#23";
+
+            response.setContentType("text/html");
+            PrintWriter out = response.getWriter();
+
+            Integer recordIdToDelete = Integer.parseInt(request.getParameter("deleteVal"));
+
+            Connection conn = null;
+
+            try {
+                    Class.forName(DRIVER);
+                    conn = DriverManager.getConnection(URL+DB, USER, PASSWORD);
+
+                    String sql = "DELETE FROM stock WHERE Product_Id = ?";
+                    PreparedStatement pstmt = conn.prepareStatement(sql);
+                    pstmt.setInt(1, recordIdToDelete);
+
+                    int rowsAffected = pstmt.executeUpdate();
+
+                    if (rowsAffected > 0) 
+                    {
+                        out.println("<link rel=\"stylesheet\" href=\"style.css\">");
+                        out.print("Record has been deleted successfully");
+
+                    } else {
+                        out.print("Enter valid ID");
+
+                    }
+
+            }
+            catch (ClassNotFoundException | SQLException e) {
+                e.printStackTrace();
+                out.print(e);
+            }
+
+            finally {
+                try {
+                    // if (rs != null) rs.close();
+                    // if (pstmt != null) pstmt.close();
+                    if (conn != null) conn.close();
+                } catch (SQLException e) {
+                    e.printStackTrace();
+                }
+            }
+
+
+    }
+}

WEB-INF/classes/Edit.java

@@ -0,0 +1,86 @@
+// package dbconnection;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.util.ResourceBundle;
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import javax.servlet.annotation.WebServlet;
+
+//jdbc packages
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Statement;
+import java.sql.PreparedStatement;
+
+@WebServlet("/Edit")
+
+public class Edit extends HttpServlet {
+
+    public void doPost(HttpServletRequest request, HttpServletResponse response) 
+        throws IOException, ServletException
+    {
+        //db connection
+        final String URL = "jdbc:mysql://localhost:3306/";
+        final String DB = "stockdb"; 
+        final String DRIVER = "com.mysql.cj.jdbc.Driver";
+        final String USER = "root";
+        final String PASSWORD = "Subhi#23";
+
+        response.setContentType("text/html");
+        PrintWriter out = response.getWriter();
+
+        String pname = request.getParameter("pname");
+        String qty = request.getParameter("qty");
+        String price = request.getParameter("price");
+        String recordToEdit = request.getParameter("editVal");
+
+
+        Connection conn = null;
+
+        try {
+            // out.print("Success5");
+            Class.forName(DRIVER);
+            conn = DriverManager.getConnection(URL+DB, USER, PASSWORD);
+
+            String sql = "UPDATE stock\r\n" + //
+                    "SET Product_Name = ?, Product_Quantity = ?, Product_Price = ?\r\n" + //
+                    "WHERE Product_Id = ?;";
+            PreparedStatement pstmt = conn.prepareStatement(sql);
+                pstmt.setString(1, pname);
+                pstmt.setString(2, qty);
+                pstmt.setString(3, price);
+                pstmt.setString(4, recordToEdit);
+
+
+            int rowsAffected = pstmt.executeUpdate();
+
+            if(rowsAffected >  0) 
+            {
+                response.sendRedirect("edit.html#successMessage1");
+
+            } else {
+                response.sendRedirect("edit.html");
+            }
+
+        } 
+
+        catch (ClassNotFoundException | SQLException e) {
+            e.printStackTrace();
+            out.print(e);
+        }
+
+        finally {
+            try {
+                // if (rs != null) rs.close();
+                // if (stmt != null) stmt.close();
+                if (conn != null) conn.close();
+            } catch (SQLException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+}

WEB-INF/classes/Insert.java

@@ -0,0 +1,81 @@
+// package dbconnection;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.util.ResourceBundle;
+import javax.servlet.ServletException;
+import javax.servlet.http.HttpServlet;
+import javax.servlet.http.HttpServletRequest;
+import javax.servlet.http.HttpServletResponse;
+import javax.servlet.annotation.WebServlet;
+
+//jdbc packages
+import java.sql.Connection;
+import java.sql.DriverManager;
+import java.sql.ResultSet;
+import java.sql.SQLException;
+import java.sql.Statement;
+import java.sql.PreparedStatement;
+
+@WebServlet("/Insert")
+
+public class Insert extends HttpServlet {
+
+    public void doPost(HttpServletRequest request, HttpServletResponse response) 
+        throws IOException, ServletException
+    {
+        //db connection
+        final String URL = "jdbc:mysql://localhost:3306/";
+        final String DB = "stockdb"; 
+        final String DRIVER = "com.mysql.cj.jdbc.Driver";
+        final String USER = "root";
+        final String PASSWORD = "Subhi#23";
+
+        response.setContentType("text/html");
+        PrintWriter out = response.getWriter();
+
+        String pname = request.getParameter("pname");
+        String qty = request.getParameter("qty");
+        String price = request.getParameter("price");
+
+
+        Connection conn = null;
+
+        try {
+            Class.forName(DRIVER);
+            conn = DriverManager.getConnection(URL+DB, USER, PASSWORD);
+
+
+            String sql = "INSERT INTO stock (Product_Name, Product_Quantity, Product_Price) VALUES (?, ?, ?)";
+            PreparedStatement pstmt = conn.prepareStatement(sql);
+                pstmt.setString(1, pname);
+                pstmt.setString(2, qty);
+                pstmt.setString(3, price);
+
+
+            int rowsAffected = pstmt.executeUpdate();
+
+            if (rowsAffected > 0) 
+            {
+                response.sendRedirect("insert.html#successMessage");
+
+            } else {
+                response.sendRedirect("insert.html");
+            }
+
+        } 
+
+        catch (ClassNotFoundException | SQLException e) {
+            e.printStackTrace();
+        }
+
+        finally {
+            try {
+                // if (rs != null) rs.close();
+                // if (stmt != null) stmt.close();
+                if (conn != null) conn.close();
+            } catch (SQLException e) {
+                e.printStackTrace();
+            }
+        }
+    }
+}