Java Server Programming Black Book Pdf 〈GENUINE – Release〉

public static Connection getConnection() throws SQLException return dataSource.getConnection();

// 1. Simple Servlet @WebServlet("/hello") public class HelloServlet extends HttpServlet protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException resp.setContentType("text/html"); PrintWriter out = resp.getWriter(); out.println("<h1>Hello from Java Server!</h1>"); out.println("Time: " + new java.util.Date()); java server programming black book pdf

@POST @Consumes(MediaType.APPLICATION_JSON) @Produces(MediaType.APPLICATION_JSON) public Response createUser(User user) userService.save(user); return Response.status(Response.Status.CREATED).entity(user).build(); HttpServletResponse resp) throws ServletException

// 4. REST API using Jersey @Path("/api/users") public class UserResource PrintWriter out = resp.getWriter()

@GET @Produces(MediaType.APPLICATION_JSON) public List<User> getUsers() return userService.getAllUsers();