So, I have a form in that i have two check boxes and both can be checked but when i check both the data is not going into database only the first value is inserting.
I tried using getParameterValues, also gave it as an array in bean and also tried some jquery functions but not able to achieve this can some one please help ??
I know there are already many examples out here but none of them worked for me.
I'll add my code below.
This is the controller servlet
import java.io.IOException;
import java.sql.SQLException;
//import java.sql.Timestamp;
//import java.text.DateFormat;
import java.text.ParseException;
//import java.text.SimpleDateFormat;
//import java.time.LocalDate;
//import java.time.format.DateTimeFormatter;
import java.util.List;
//import java.util.Locale;
//import java.util.TimeZone;
//import java.util.Calendar;
//import java.util.Date;
import javax.servlet.RequestDispatcher;
import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
//import org.postgresql.util.PGTimestamp;
@WebServlet("/")
public class ControllerServlet<main_category> extends HttpServlet
{
private static final long serialVersionUID = 1L;
private ProductDAO productDAO;
public ControllerServlet()
{
this.productDAO = new ProductDAO();
}
protected void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException
{
doGet(request, response);
}
protected void doGet(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException
{
String action = request.getServletPath();
try
{
switch (action)
{
case "/insert":
try
{
insertProduct(request, response);
}
catch (SQLException ex)
{
throw new ServletException(ex);
}
catch (ParseException e)
{
e.printStackTrace();
}
break;
case "/ProductList":
try
{
listProduct(request, response);
}
catch (SQLException e)
{
e.printStackTrace();
}
catch (IOException e)
{
e.printStackTrace();
}
catch (ServletException e)
{
e.printStackTrace();
}
break;
case "/delete":
try
{
deleteProduct(request, response);
}
catch (SQLException e)
{
e.printStackTrace();
}
catch (IOException e)
{
e.printStackTrace();
}
break;
case "/edit":
try
{
showCreateProduct(request, response);
}
catch (SQLException e)
{
e.printStackTrace();
}
catch (IOException e)
{
e.printStackTrace();
}
catch (ServletException e)
{
e.printStackTrace();
}
break;
case "/update":
try
{
updateProduct(request, response);
}
catch (SQLException e)
{
e.printStackTrace();
}
catch (IOException e)
{
e.printStackTrace();
}
catch (ServletException e)
{
e.printStackTrace();
}
catch (ParseException e)
{
e.printStackTrace();
}
break;
default:
try
{
RequestDispatcher rd = request.getRequestDispatcher("URL.jsp");
rd.forward(request, response);
}
catch (IOException e)
{
e.printStackTrace();
}
catch (ServletException e)
{
e.printStackTrace();
}
break;
}
}
catch (ClassNotFoundException e)
{
e.printStackTrace();
}
}
public void insertProduct(HttpServletRequest request, HttpServletResponse response)throws SQLException, IOException, ClassNotFoundException, ServletException, ParseException
{
String code = request.getParameter("code");
String name = request.getParameter("name");
int price = Integer.parseInt(request.getParameter("price"));
String home_main_category = request.getParameter("home_main_category");
String home_sub_category = request.getParameter("home_sub_category");
String p_avail = request.getParameter("p_avail");
String p_act = request.getParameter("p_act"); // This is the checkbox
String pro_exp_date = request.getParameter("pro_exp_date");
String pro_manufacture_date = request.getParameter("pro_manufacture_date");
Product newProduct = new Product(code,name,price,home_main_category,home_sub_category,p_avail,p_act,pro_exp_date,pro_manufacture_date);
try
{
productDAO.insertProduct(newProduct);
}
catch (ClassNotFoundException e)
{
e.printStackTrace();
}
RequestDispatcher rd = request.getRequestDispatcher("CreateProduct.jsp");
rd.forward(request,response);
}
public void listProduct(HttpServletRequest request, HttpServletResponse response)throws SQLException, IOException, ServletException, ClassNotFoundException
{
List<Product> listProduct = productDAO.selectAllProducts();
request.setAttribute("listProduct", listProduct);
RequestDispatcher rd = request.getRequestDispatcher("ProductList.jsp");
// System.out.println(" " listProduct );
rd.forward(request, response);
}
public void deleteProduct(HttpServletRequest request, HttpServletResponse response)throws SQLException, IOException, ClassNotFoundException, ServletException
{
int id = Integer.parseInt(request.getParameter("id"));
productDAO.deleteProduct(id);
RequestDispatcher rd = request.getRequestDispatcher("ProductList");
rd.forward(request, response);
}
public void showCreateProduct(HttpServletRequest request, HttpServletResponse response)throws SQLException, IOException, ClassNotFoundException, ServletException
{
int id = Integer.parseInt(request.getParameter("id"));
Product existingProduct = productDAO.selectProduct(id);
RequestDispatcher rd = request.getRequestDispatcher("CreateProduct.jsp");
request.setAttribute("product", existingProduct);
rd.forward(request, response);
}
public void updateProduct(HttpServletRequest request, HttpServletResponse response)throws SQLException, IOException, ClassNotFoundException, ServletException, ParseException
{
int id = Integer.parseInt(request.getParameter("id"));
String code = request.getParameter("code");
String name = request.getParameter("name");
int price = Integer.parseInt(request.getParameter("price"));
String home_main_category = request.getParameter("home_main_category");
String home_sub_category = request.getParameter("home_sub_category");
String p_avail = request.getParameter("p_avail");
String p_act = request.getParameter("p_act"); // This is the checkbox
String pro_exp_date = request.getParameter("pro_exp_date");
String pro_manufacture_date = request.getParameter("pro_manufacture_date");
Product product = new Product(id, code, name, price, home_main_category, home_sub_category, p_avail, p_act, pro_exp_date, pro_manufacture_date);
productDAO.updateProduct(product);
RequestDispatcher rd = request.getRequestDispatcher("CreateProduct.jsp");
rd.forward(request, response);
}
}
This is my DAO
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.List;
//import java.util.Date;
public class ProductDAO
{
public void insertProduct(Product product) throws SQLException, ClassNotFoundException
{
Connection conn = DatabaseConnection.initializeDatabase();
String query = "insert into productlist (code,name,price,home_main_category,home_sub_category,p_avail,p_act,pro_exp_date,pro_manufacture_date) values(?,?,?,?,?,?,?,?,?)";
try
{
PreparedStatement prestmt = conn.prepareStatement(query);
prestmt.setString(1,product.code);
prestmt.setString(2,product.name);
prestmt.setInt(3,product.price);
prestmt.setString(4,product.home_main_category);
prestmt.setString(5,product.home_sub_category);
prestmt.setString(6,product.p_avail);
prestmt.setString(7,product.p_act); // this is the checkbox
prestmt.setString(8, product.pro_exp_date);
prestmt.setString(9,product.pro_manufacture_date);
System.out.println("Product is added to Database");
prestmt.executeUpdate();
}
catch (SQLException e)
{
e.printStackTrace();
}
}
public List<Product> selectAllProducts() throws SQLException, ClassNotFoundException
{
List<Product> listProduct = new ArrayList<>();
Connection conn = DatabaseConnection.initializeDatabase();
String query = "select * from productlist";
try
{
PreparedStatement prestmt = conn.prepareStatement(query);
ResultSet rs = prestmt.executeQuery();
while (rs.next())
{
int id = rs.getInt("id");
String code = rs.getString("code");
String name = rs.getString("name");
int price = rs.getInt("price");
String home_main_category = rs.getString("home_main_category");
String home_sub_category = rs.getString("home_sub_category");
String p_avail = rs.getString("p_avail");
String p_act = rs.getString("p_act"); // this is the checkbox
String pro_exp_date = rs.getString("pro_exp_date");
String pro_manufacture_date = rs.getString("pro_manufacture_date");
listProduct.add(new Product(id,code,name,price,home_main_category,home_sub_category,p_avail,p_act,pro_exp_date,pro_manufacture_date));
}
// System.out.println(" " listProduct );
System.out.println("Product List is Displayed");
}
catch (SQLException e)
{
e.printStackTrace();
}
return listProduct;
}
public boolean deleteProduct(int id) throws SQLException, ClassNotFoundException
{
boolean rowDeleted = false;
Connection conn = DatabaseConnection.initializeDatabase();
String query = "delete from productlist where id = ?";
try
{
PreparedStatement prestmt = conn.prepareStatement(query);
prestmt.setInt(1,id);
rowDeleted = prestmt.executeUpdate() > 0;
}
catch (SQLException e)
{
e.printStackTrace();
}
System.out.println("Product is Deleted Successfully");
return rowDeleted;
}
public Product selectProduct(int id) throws ClassNotFoundException, SQLException
{
Product product = null;
Connection conn = DatabaseConnection.initializeDatabase();
String query = "select * from productlist where id = ?";
try
{
PreparedStatement prestmt = conn.prepareStatement(query);
prestmt.setInt(1,id);
ResultSet rs = prestmt.executeQuery();
while (rs.next())
{
String code = rs.getString("code");
String name = rs.getString("name");
int price = rs.getInt("price");
String home_main_category = rs.getString("home_main_category");
String home_sub_category = rs.getString("home_sub_category");
String p_avail = rs.getString("p_avail");
String p_act = rs.getString("p_act"); // this is the checkbox
String pro_exp_date = rs.getString("pro_exp_date");
String pro_manufacture_date = rs.getString("pro_manufacture_date");
product = new Product(id,code,name,price,home_main_category,home_sub_category,p_avail,p_act,pro_exp_date,pro_manufacture_date);
}
}
catch (SQLException e)
{
e.printStackTrace();
}
System.out.println("Product Details are Being Edited");
return product;
}
public boolean updateProduct(Product product) throws SQLException, ClassNotFoundException
{
boolean rowUpdated = false;
Connection conn = DatabaseConnection.initializeDatabase();
String query = "update productlist set code = ?, name = ?, price = ?, home_main_category = ?, home_sub_category = ?, p_avail = ?, p_act = ?, pro_exp_date = ?, pro_manufacture_date = ? where id = ? ";
try
{
PreparedStatement prestmt = conn.prepareStatement(query);
prestmt.setString(1,product.code);
prestmt.setString(2,product.name);
prestmt.setInt(3,product.price);
prestmt.setString(4,product.home_main_category);
prestmt.setString(5,product.home_sub_category);
prestmt.setString(6,product.p_avail);
prestmt.setString(7,product.p_act); // this is the checkbox
prestmt.setString(8,product.pro_exp_date);
prestmt.setString(9,product.pro_manufacture_date);
prestmt.setInt(10,product.id);
rowUpdated = prestmt.executeUpdate() > 0;
System.out.println("Product Details are Updated in the Database");
}
catch (SQLException e)
{
e.printStackTrace();
}
return rowUpdated;
}
}
This is what i added in my JSP i am using Semantic UI.
<div class = "error_placement_checkbox">
<div align = "center" id = "idcheckbox">
<div align = "center" >
<label> Product Availability </label>
<div >
<div >
<input type = "checkbox" name = "p_act" value = "In_Stock" >
<label> In Stock </label>
</div>
</div>
<div >
<div >
<input type = "checkbox" name = "p_act" value = "Out_Of_Stock" >
<label> Out Of Stock </label>
</div>
</div>
</div>
</div>
</div>
CodePudding user response：
I guess, the problem is with duplicated name in form - p_act:
<input type = "checkbox" name = "p_act" value = "In_Stock" >
<input type = "checkbox" name = "p_act" value = "Out_Of_Stock" >
I think you should do separate names for each position (like p_act1, p_act2) and concat them somehow. For example:
String p_act = Stream.of(request.getParameter("p_act1"), request.getParameter("p_act2"))
.filter(Objects::nonNull)
.collect(Collectors.joining(","))