SpringMVC+HIbernate登录程序并进行增删改查

package com.mvc.controller; import java.util.List; import javax.servlet.http.HttpServletRequest; import org.apache.commons.logging.Log; import org.apache.commons.logging.LogFactory; import org.springframework.beans.factory.annotation.Autowired; import org.springframework.stereotype.Controller; import org.springframework.ui.Model; import org.springframework.ui.ModelMap; import org.springframework.web.bind.annotation.RequestMapping; import org.springframework.web.bind.annotation.RequestParam; import org.springframework.web.bind.annotation.ResponseBody; import com.mvc.entity.Persons; import com.mvc.entity.Users; import com.mvc.service.PersonsService; import com.mvc.service.UsersService; @Controller public class LoginController { protected final transient Log log = LogFactory .getLog(LoginController.class); @Autowired private UsersService usersService; @Autowired private PersonsService personsService; public LoginController() { } private Users users; private Persons persons; private List<Object> list; @RequestMapping(value="/login.do") public String load(HttpServletRequest request, ModelMap modelMap) { System.out.println("点击了check"); String username = request.getParameter("username"); String password = request.getParameter("password"); System.out.println(username); System.out.println(password); // personsService = new PersonsService(); boolean isExist = usersService.isExist(username, password); if (isExist) { System.out.println("用户存在！！！"); modelMap.addAttribute("username", username); List<Object> personslist = personsService.getAllList(); request.setAttribute("personslist", personslist); return "searchresult"; } return "loginerror"; } // jQuery ajax check up/ @RequestMapping("/check.do") public @ResponseBody String check( @RequestParam(value = "username", required = true) String username, @RequestParam(value = "password", required = true) String password, Model model) { // boolean isExist = usersService.isExist(username, password); String info = new String(); if (isExist) { info = "yes"; } else { info = "no"; } return info; } public Users getUsers() { return users; } public void setUsers(Users users) { this.users = users; } public List<Object> getList() { return list; } public void setList(List<Object> list) { this.list = list; } public Persons getPersons() { return persons; } public void setPersons(Persons persons) { this.persons = persons; } }