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 web; import java.util.HashMap; import java.util.List; import javax.servlet.http.HttpServletRequest; import javax.validation.Valid; import objects.Users; import org.springframework.beans.factory.annotation.Autowired; import repository.UsersDAO; import objects.Message; import org.springframework.stereotype.Controller; import org.springframework.validation.BindingResult; import org.springframework.web.bind.WebDataBinder; import org.springframework.web.bind.annotation.InitBinder; import org.springframework.web.bind.annotation.ModelAttribute; import org.springframework.web.bind.annotation.PathVariable; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestMethod; import org.springframework.web.servlet.ModelAndView; import validation.UsersValidator; /** * * @author sethd */ @Controller public class UsersController { @Autowired UsersDAO dao; @Autowired private UsersValidator usersValidator; @RequestMapping("/users/usersform") public ModelAndView showform() { return new ModelAndView("usersform", "users", new Users()); } @RequestMapping(value = "/users/save", method = RequestMethod.POST) public ModelAndView save(@ModelAttribute("users") @Valid Users users, BindingResult result, HttpServletRequest request) { if (result.hasErrors()) { return new ModelAndView("usersform", "users", users); } int r = dao.save(users); Message msg = null; if (r == 1) { msg = new Message(Message.Level.INFO, "User has been successfully created"); } else { msg = new Message(Message.Level.ERROR, "New user creation failed"); } request.getSession().setAttribute("message", msg); return new ModelAndView("redirect:/users/viewusers"); } @RequestMapping("/users/viewusers") public ModelAndView viewuser_role(HttpServletRequest request) { return this.viewusers(1, request); } /** * * @param pageid * @param request * @return */ @RequestMapping("/user/viewuser/{pageid}") public ModelAndView viewusers(@PathVariable int pageid, HttpServletRequest request) { int total = 10; int start = 1; if (pageid != 1) { start = (pageid - 1) * total + 1; } List<Users> list = dao.getUsersByPage(start, total); HashMap<String, Object> context = new HashMap<String, Object>(); context.put("list", list); int count = dao.getUsersCount(); context.put("pages", Math.ceil((float) count / (float) total)); context.put("page", pageid); Message msg = (Message) request.getSession().getAttribute("message"); if (msg != null) { context.put("message", msg); request.getSession().removeAttribute("message"); } return new ModelAndView("viewusers", context); } @RequestMapping(value = "/users/editusers/{username}") public ModelAndView edit(@PathVariable String username) { Users users = dao.getUsersByUsername(username); return new ModelAndView("userseditform", "users", users); } @RequestMapping(value = "/users/editsave", method = RequestMethod.POST) public ModelAndView editsave(@ModelAttribute("users") @Valid Users users, BindingResult result, HttpServletRequest request) { if (result.hasErrors()) { return new ModelAndView("userseditform", "users", users); } int r = dao.update(users); Message msg = null; if (r == 1) { msg = new Message(Message.Level.INFO, "Interaction has been successfully saved"); } else { msg = new Message(Message.Level.ERROR, "Edit interaction failed"); } request.getSession().setAttribute("message", msg); return new ModelAndView("redirect:/users/viewusers"); } @RequestMapping(value = "/users/deleteusers/{username}", method = RequestMethod.GET) public ModelAndView delete(@ModelAttribute("users") Users users, HttpServletRequest request) { int r = dao.delete(users); Message msg = null; if (r == 1) { msg = new Message(Message.Level.INFO, "User has been successfully deleted"); } else { msg = new Message(Message.Level.ERROR, "Delete user failed"); } request.getSession().setAttribute("message", msg); return new ModelAndView("redirect:/users/viewusers"); } @InitBinder("users") public void initBinder(WebDataBinder webDataBinder) { webDataBinder.setValidator(usersValidator); } public UsersValidator getUsersValidator() { return usersValidator; } public void setUsersValidator(UsersValidator usersValidator) { this.usersValidator = usersValidator; } }