基于Java web+layui框架的医院住院信息管理系统(源码+数据库脚本).zip

package servlet; import java.io.IOException; import java.util.List; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import entity.User; import service.UserService; import service.impl.UserServiceImpl; import utils.WebUtils; /** * Servlet implementation class UserServlet */ public class UserServlet extends HttpServlet { private UserService service=new UserServiceImpl(); @Override protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { String action=request.getParameter("action");//接受请求的参数 if(action!=null&action.equals("login")) {//处理登录 login(request, response); }else if(action!=null&action.equals("toRegsite")) {//跳转到注册界面 toRegsite(request, response); }else if(action!=null&action.equals("registe")) {//进行注册 registe(request,response); }else if(action!=null&action.equals("LoginOutAct")){//退出登录 loginOut(request,response); }else if(action!=null&action.equals("userListAct")) {//用户列表 list(request, response); }else if(action!=null&action.equals("toAddUserAct")) {//跳转到添加用户 toAddUser(request,response); }else if(action!=null&action.equals("welcome")) {//跳转到控制台 welcome(request,response); }else if(action!=null&action.equals("toLoginAct")) {//跳转到登录界面 toLogin(request,response); }else if(action!=null&action.equals("findByUserNameAct")) {//根据条件查询 findByMap(request,response); }else if(action!=null&action.equals("queryByIdAct")) {//根据条件查询 query(request,response); }else if(action!=null&action.equals("deleteUserAct")) {//根据id删除 delete(request,response); }else if(action!=null&action.equals("addUserAct")) {//根据id删除 add(request,response); }else if(action!=null&action.equals("findMyInfoAct")) {//根据id删除 findMyInfo(request,response); }else if(action!=null&action.equals("updateUserAct")) {//根据id删除 update(request,response); } } @Override protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { doPost(request, response); } protected void login(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {//处理登录 String username = request.getParameter("username"); String password = request.getParameter("password"); int type = Integer.parseInt(request.getParameter("type")); User user = service.login(new User(null, username, password,null, type)); switch (type) { case 1: if (user == null){ request.setAttribute("message", "用户不存在或者密码错误"); request.getRequestDispatcher("/WEB-INF/jsp/login.jsp").forward(request, response); } else if(user.getType()!=1){ request.setAttribute("message", "用户名和用户类型不匹配，请重新输入！"); request.getRequestDispatcher("/WEB-INF/jsp/login.jsp").forward(request, response); }else { request.getSession().setAttribute("user",user); request.getSession().setAttribute("flag",1); request.getRequestDispatcher("/WEB-INF/jsp/main.jsp").forward(request, response); } break; default: if (user == null){ request.setAttribute("message", "管理员不存在或者密码错误"); request.getRequestDispatcher("/WEB-INF/jsp/login.jsp").forward(request, response); } else if(user.getType()!=2){ request.setAttribute("message", "用户名和用户类型不匹配，请重新输入！"); request.getRequestDispatcher("/WEB-INF/jsp/login.jsp").forward(request, response); }else { request.getSession().setAttribute("user",user); request.getSession().setAttribute("flag",2); request.getRequestDispatcher("/WEB-INF/jsp/main.jsp").forward(request, response); } break; } } //分页查询 protected void list(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {//跳转到注册界面 String p=request.getParameter("p");//接收页码 //System.out.println(p); int pageSize=6;//每页显示5条 int pageNum=1; //默认第一页 if(p!=null){ pageNum= Integer.parseInt(p); } //调用分页查询 List<User> bList=service.getPage(pageNum,pageSize); //携带参数到页面 request.setAttribute("userList",bList); //绑定参数 int nums=service.queryCount(); //查询总数 //计算总页数 int totalPage=(nums%pageSize==0)? (nums/pageSize):(nums/pageSize+1); request.setAttribute("cp",pageNum); //当前页 request.setAttribute("tp",totalPage); //总页数 //条件 值1：值2 request.getRequestDispatcher("/WEB-INF/jsp/user_list.jsp").forward(request,response); //页面转发 } protected void add(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {//添加 String username=request.getParameter("username"); String password=request.getParameter("password"); String email=request.getParameter("email"); int type=Integer.parseInt(request.getParameter("type")); if(service.existsUsername(username)){ request.setAttribute("msg","用户名已存在"); request.setAttribute("username",username); request.setAttribute("email",email); response.sendRedirect(request.getContextPath()+"/UserServlet?action=userListAct");//重定向防止重复提交哦 }else { service.registerUser(new User(null,username,password,email,type)); response.sendRedirect(request.getContextPath()+"/UserServlet?action=userListAct");//重定向防止重复提交哦 } } protected void query(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {//查询数据并回显 int id=WebUtils.parseInt(request.getParameter("id"),0); User user=service.queryById(id); request.setAttribute("list",user); System.out.println(user); request.getRequestDispatcher("/WEB-INF/jsp/update_user.jsp").forward(request,response); } protected void findMyInfo(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {//查询个人信息 String username=request.getParameter("username"); User user=service.findByUserName(username); request.setAttribute("user",user); System.out.println(user); request.getRequestDispatcher("/WEB-INF/jsp/user_info.jsp").forward(request,response); } protected void update(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {//更改 int id= WebUtils.parseInt(request.getParameter("id"),0); String username=request.getParameter("username"); String password=request.getParameter("password"); String email=request.getParameter("email"); int type=Integer.parseInt(request.getParameter("type")); String flag=request.getParameter("flag"); if (flag.equals("1")) { service.update(new User(id,username,password,email,type)); request.getRequestDispatcher("/WEB-INF/jsp/update_ok.jsp")