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AllCustomers.java
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AllCustomers.java
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/*
* Click nbfs://nbhost/SystemFileSystem/Templates/Licenses/license-default.txt to change this license
* Click nbfs://nbhost/SystemFileSystem/Templates/JSP_Servlet/Servlet.java to edit this template
*/
package com.business.customer;
import jakarta.servlet.ServletException;
import jakarta.servlet.http.HttpServlet;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.io.PrintWriter;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.List;
/**
*
* @author bryan
*/
public class AllCustomers extends HttpServlet {
private final String jdbcURL = "jdbc:mysql://localhost:3306/business?useSSL=false&useUnicode=true&useJDBCCompliantTimezoneShift=true&useLegacyDatetimeCode=false&serverTimezone=UTC";
private final String jdbcUsername = "root";
private final String jdbcPassword = "";
private final String jdbcDriver = "com.mysql.cj.jdbc.Driver";
private final String table = "customers";
Connection connection = null;
@Override
protected void service(HttpServletRequest request, HttpServletResponse response)
throws ServletException, IOException {
PrintWriter out = response.getWriter();
try{
// Load the database driver
Class.forName(jdbcDriver);
// Get a Connection to the database
connection = DriverManager.getConnection(jdbcURL, jdbcUsername, jdbcPassword);
//Select the data from the database
String sql = "SELECT * FROM "+table;
Statement s = connection.createStatement();
s.executeQuery (sql);
ResultSet rs = s.getResultSet();
out.println("<a href='AllProducts'>shop product</a>");
out.println("<a href='new_customer'>add customer</a>");
out.println("<table border=1 >");
out.println("<tr><th>name</th><th>location</th><th>preferences</th><th>gender</th><tr>");
while (rs.next()) {
String name = rs.getString("name");
String location = rs.getString("location");
String preferences = rs.getString("preferences");
String gender = rs.getString("gender");
out.println("<tr><td>" + name + "</td><td>" + location + "</td><td>" + preferences + "</td><td>" + gender + "</td></tr>");
}
out.println("</table>");
rs.close ();
s.close ();
}catch(ClassNotFoundException | SQLException e){
System.out.println("Exception is ;"+e);
}
}
}