基于javaweb+mysql的火车购票系统

package com.my12306.servlet; import java.io.IOException; import java.io.PrintWriter; import java.util.List; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import javax.servlet.http.HttpSession; import com.my12306.model.User; import com.my12306.service.IUserManageService; import com.my12306.serviceimpl.UserManageServiceImpl; public class UserManageServlet extends HttpServlet { //调用服务层 IUserManageService iUserManageService=new UserManageServiceImpl(); public void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { response.setContentType("text/html;charset=gbk"); PrintWriter out = response.getWriter(); String flag=request.getParameter("flag"); if(flag.equals("delUser")) { delUser(request,response); } else if(flag.equals("getUsers")) { getUsers(request,response); } } //显示所有用户信息 public void getUsers(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException { PrintWriter out = response.getWriter(); List<User> userList=iUserManageService.getUsers(); request.setAttribute("UserList", userList); //跳转 request.getRequestDispatcher("/Admin/UserManageQuery.jsp").forward(request, response); out.flush(); out.close(); } //删除用户 public void delUser(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException { PrintWriter out = response.getWriter(); String ids=request.getParameter("ids"); System.out.println("ids="+ids); iUserManageService.delUser(ids); //刷新页面 response.sendRedirect(request.getContextPath()+"/servlet/UserManageServlet?flag=getUsers"); out.flush(); out.close(); } public void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { request.setCharacterEncoding("gbk"); response.setContentType("text/html;charset=gbk"); PrintWriter out = response.getWriter(); String param=request.getParameter("flag"); if(param.equals("addUser")) { addUser(request,response); } else if(param.equals("queryUser")) { queryUser(request,response); } } //添加用户信息 public void addUser(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException { PrintWriter out = response.getWriter(); //获取表单数据 String username=request.getParameter("username"); String rule=request.getParameter("rule"); String realname=request.getParameter("realname"); String sex=request.getParameter("sex"); String province=request.getParameter("province"); String city=request.getParameter("city"); String certType=request.getParameter("certType"); String cert=request.getParameter("cert"); String birthday=request.getParameter("birthday"); String userType=request.getParameter("userType"); String content=request.getParameter("content"); //将获取的值存入到javaBean user对象中 User user=new User( birthday,city, cert, certType,content,"",province,realname,rule,Integer.parseInt(sex),username,userType); //调用服务层 iUserManageService.addUser(user); //刷新页面 response.sendRedirect(request.getContextPath()+"/servlet/UserManageServlet?flag=getUsers"); out.flush(); out.close(); } public void queryUser(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException { request.setCharacterEncoding("gbk"); response.setContentType("text/html;charset=gbk"); PrintWriter out = response.getWriter(); //获取要查询的值 String realname=request.getParameter("realname"); String sex=request.getParameter("sex"); String certType=request.getParameter("certType"); String cert=request.getParameter("cert"); String userType=request.getParameter("userType"); //封装到javabean中 User user=new User(); user.setRealname(realname); user.setSex(Integer.parseInt(sex)); user.setIdtype(certType); user.setIdno(cert); user.setUsertype(userType); List<User> userList=iUserManageService.queryUsers(user); HttpSession session=request.getSession(); session.setAttribute("UserList", userList); //跳转 //request.getRequestDispatcher("/Admin/UserManageQuery.jsp").forward(request, response); //刷新页面 response.sendRedirect(request.getContextPath()+"/Admin/UserManageQuery.jsp"); out.flush(); out.close(); } }