GetUsers.java

package com.workbenchclassic;

import java.sql.SQLException;
import java.util.List;
import java.util.Map;
import javax.ws.rs.Consumes;
import javax.ws.rs.POST;
import javax.ws.rs.Path;
import javax.ws.rs.Produces;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;
import org.json.JSONException;
import org.json.JSONObject;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.core.JsonProcessingException;
import java.util.logging.Level;
import java.util.logging.Logger;

@Path("/getUsers")
public class GetUsers { // Klassenname geändert

    private static final DBService DB_SERVICE = new DBService("dsMesMiiNJTA");
    private static final ObjectMapper MAPPER = new ObjectMapper();
    private static final Logger LOGGER = Logger.getLogger(DBService.class.getName());

    @POST
    @Consumes(MediaType.APPLICATION_JSON)
    @Produces(MediaType.APPLICATION_JSON)
    public Response getUserResponse(String jsonBody) {
        String station;
        try {
            JSONObject json = new JSONObject(jsonBody);
            station = json.getString("station");
        } catch (JSONException e) {
            return Response.status(Response.Status.BAD_REQUEST)
                    .entity("{\"error\":\"Missing or invalid 'station' parameter\"}")
                    .build();
        }

        String query = "SELECT bde_userid AS USER_ID, geschlecht AS GENDER, name AS USER_NAME, vorname AS USER_FIRSTNAME "
                + "FROM bde.pers_stamm "
                + "WHERE werk_id IN (SELECT werk_id FROM bde.kast WHERE kap_nr = '" + station + "')";
        LOGGER.log(Level.INFO, "Executing SQL query: {0}", query);

        try {
            List<Map<String, Object>> rows = DB_SERVICE.dbConnectAndGetRows(query); // Vorbereitetes Statement nutzen
                                                                                    //
            return Response.ok(MAPPER.writeValueAsString(rows)).build();
        } catch (SQLException e) {
            LOGGER.log(Level.SEVERE, "Database error", e);
            return Response.status(Response.Status.INTERNAL_SERVER_ERROR)
                    .entity(String.format("{\"error\":\"DB error: %s\"}", e.getMessage()))
                    .build();
        } catch (JsonProcessingException e) {
            LOGGER.log(Level.SEVERE, "JSON processing error", e);
            return Response.status(Response.Status.INTERNAL_SERVER_ERROR)
                    .entity(String.format("{\"error\":\"JSON processing error: %s\"}", e.getMessage()))
                    .build();
        }
    }
}