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Paramita Pahari 2025-03-11 06:37:50 +00:00
parent 47539398cf
commit a78c9c3595
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package Controller;
import LoginDb.DbHandler;
import com.google.gson.Gson;
import java.io.PrintWriter;
import java.io.IOException;
import jakarta.servlet.ServletException;
import jakarta.servlet.annotation.WebServlet;
import jakarta.servlet.http.HttpServlet;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import jakarta.servlet.http.HttpSession;
import java.sql.Connection;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
/**
*
* @author 1121947
*/
//@WebServlet(name = "TicketServlet", urlPatterns = {"/TicketServlet"})
public class TicketServlet extends HttpServlet {
protected void processRequest(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
response.setContentType("text/html;charset=UTF-8");
try (PrintWriter out = response.getWriter()) {
/* TODO output your page here. You may use following sample code. */
out.println("<!DOCTYPE html>");
out.println("<html>");
out.println("<head>");
out.println("<title>Servlet TicketServlet</title>");
out.println("</head>");
out.println("<body>");
out.println("<h1>Servlet TicketServlet at " + request.getContextPath() + "</h1>");
out.println("</body>");
out.println("</html>");
}
}
@Override
protected void doPost(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
}
@Override
protected void doGet(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
HttpSession session = request.getSession(false);
String user = request.getParameter("UID");
System.out.println("Ticket Servlet");
PrintWriter out= response.getWriter();
response.setContentType("application/json");
response.setCharacterEncoding("UTF-8");
List<Map<String, Object>> ticketData = new ArrayList<>();
Map<String, Integer> chartData = new HashMap<>();
try {
try ( //Database Connection
Connection conn = DbHandler.getDBConnection()) {
String sql = "select user_id,User_role,transaction_type,status,unclaimed,Loan_overdue,kyc_status,si_status from ticket_details";
if (user != null && !user.isEmpty()) {
sql += " where user_id = ?";
}
sql += " order by user_id desc";
try (PreparedStatement ps = conn.prepareStatement(sql)) {
if (user != null && !user.isEmpty()) {
ps.setInt(1, Integer.parseInt(user));
}
try (ResultSet rs = ps.executeQuery()) {
while (rs.next()) {
Map<String, Object> data = new HashMap<>();
data.put("user_id", rs.getInt("user_id"));
data.put("unclaimed", rs.getString("unclaimed"));
data.put("Loan_overdue", rs.getString("Loan_overdue"));
data.put("kyc_status", rs.getString("kyc_status"));
data.put("si_status", rs.getString("si_status"));
ticketData.add(data);
// Collect data for charts
String status = rs.getString("status");
chartData.put(status, chartData.getOrDefault(status, 0) + 1);
}
System.out.println("ticket data:" +ticketData);
}
}
}
} catch (SQLException e) {
}
// Convert list to JSON
String json = new Gson().toJson(ticketData);
String chartJson = new Gson().toJson(chartData);
out.print("{\"ticketData\":" + json + ", \"chartData\":" + chartJson + "}");
System.out.println("Controller.TicketServlet.doGet()"+json);
//out.flush();
}
}