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 ar.edu.ubp.das.src.chat.actions; import ar.edu.ubp.das.mvc.action.Action; import ar.edu.ubp.das.mvc.action.ActionMapping; import ar.edu.ubp.das.mvc.action.DynaActionForm; import ar.edu.ubp.das.mvc.config.ForwardConfig; import java.io.IOException; import java.sql.SQLException; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import org.apache.http.HttpEntity; import org.apache.http.StatusLine; import org.apache.http.client.methods.CloseableHttpResponse; import org.apache.http.client.methods.HttpPost; import org.apache.http.impl.client.CloseableHttpClient; import org.apache.http.impl.client.HttpClientBuilder; import org.apache.http.util.EntityUtils; /** * * @author Jav */ public class LogoutAction implements Action { @Override public ForwardConfig execute(ActionMapping mapping, DynaActionForm form, HttpServletRequest request, HttpServletResponse response) throws SQLException, RuntimeException { try (CloseableHttpClient httpClient = HttpClientBuilder.create().build()) { String authToken = String.valueOf(request.getSession().getAttribute("token")); HttpPost httpPost = new HttpPost("http://25.136.78.82:8080/logout/"); httpPost.addHeader("Authorization", "BEARER " + authToken); httpPost.addHeader("accept", "application/json"); CloseableHttpResponse postResponse = httpClient.execute(httpPost); HttpEntity responseEntity = postResponse.getEntity(); StatusLine responseStatus = postResponse.getStatusLine(); String restResp = EntityUtils.toString(responseEntity); if (responseStatus.getStatusCode() != 200) { throw new RuntimeException(restResp); } request.getSession().removeAttribute("token"); return mapping.getForwardByName("success"); } catch (IOException | RuntimeException e) { request.setAttribute("message", "Error al realizar logout: " + e.getMessage()); response.setStatus(400); return mapping.getForwardByName("failure"); } } }