Java tutorial
/* * To change this license header, choose License Headers in Project Properties. * To change this template file, choose Tools | Templates * and open the template in the editor. */ package socket; import java.sql.Connection; import java.sql.ResultSet; import java.sql.SQLException; import java.sql.Statement; import org.json.simple.JSONObject; /** * * @author Delia */ public class DatosSeguro { public static String obtenerDB(String datoRecibido) throws SQLException { String servidor = "jdbc:mysql://localhost/sd_salud_db"; Connection miConexion = ConnectionDB.GetConnection(servidor); System.out.println(miConexion); JSONObject objJson = new JSONObject(); if (miConexion != null) { String codigoSalud = datoRecibido; System.out.println("Codigo Salud = " + codigoSalud); double dato = Double.valueOf(codigoSalud); Statement s = miConexion.createStatement(); ResultSet rs = s.executeQuery("select * from datos_seguro where codigo_salud = " + dato); boolean isRecord = false; while (rs.next()) { objJson.put("Estado", rs.getString("estado")); objJson.put("SeguroSalud", rs.getString("seguro")); objJson.put("Duracion", rs.getString("duracion")); isRecord = true; System.out.println("IsRecord: " + isRecord); } if (!isRecord) { objJson.put("Estado", "noExiste"); objJson.put("SeguroSalud", "--"); objJson.put("Duracion", "--"); System.out.println("IsRecord: " + isRecord); } } System.out.println(objJson.toString()); String datosPersonales = objJson.toString(); return datosPersonales; } }