1创建更新用户持久层
void updateUserByUserId(Users users);
/*** 更新用户* @param users*/@Overridepublic void updateUserByUserId(Users users) {Connection conn = null;try{conn = JdbcUtils.getConnection();conn.setAutoCommit(false);PreparedStatement preparedStatement = conn.prepareStatement("update users set username=? ,usersex = ?,phonenumber=?,qqnumber = ? where userid = ? ");preparedStatement.setString(1,users.getUsername());preparedStatement.setString(2,users.getUsersex());preparedStatement.setString(3,users.getPhonenumber());preparedStatement.setString(4,users.getQqnumber());preparedStatement.setInt(5,users.getUserid());preparedStatement.execute();mit();}catch(Exception e){e.printStackTrace();JdbcUtils.rollbackConnection(conn);}finally {JdbcUtils.closeConnection(conn);}}
2创建更新用户业务层
void modifyUser(Users users);
/*** 修改用户* @param users*/@Overridepublic void modifyUser(Users users) {UserManagerDao userManagerDao = new UserManagerDaoImpl();userManagerDao.updateUserByUserId(users);}
3创建更新用户Servlet
/*** 处理更新用户请求*/private void modifyUser(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException{String userid = req.getParameter("userid");Users users = this.createUsers(req);users.setUserid(Integer.parseInt(userid));try{UserManagerService userManagerService = new UserManagerServiceImpl();userManagerService.modifyUser(users);resp.sendRedirect("ok.jsp");}catch(Exception e){e.printStackTrace();resp.sendRedirect("error.jsp");}}
4修改更新用户页面
修改 updateUser.jsp
<%@ page contentType="text/html;charset=UTF-8" language="java" %><%@ taglib prefix="c" uri="/jsp/jstl/core" %><html><head><meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><title>无标题文档</title><link href="css/style.css" rel="stylesheet" type="text/css" /></head><body><div class="place"><span>位置：</span><ul class="placeul"><li><a href="#">用户管理</a></li><li><a href="#">修改用户</a></li></ul></div><div class="formbody"><div class="formtitle"><span>基本信息</span></div><form action="userManager.do" method="post"><input type="hidden" name="flag" value="modifyUser"/><input type="hidden" name="userid" value="${user.userid}"/><ul class="forminfo"><li><label>用户名</label><input name="username" type="text" class="dfinput" value="${user.username}"/> </li><li><label>性别</label><cite><c:choose><c:when test="${user.usersex == 1}"><input name="usersex" type="radio" value="1" checked="checked" />男 <input name="usersex" type="radio" value="0" />女</c:when><c:otherwise><input name="usersex" type="radio" value="1" />男 <input name="usersex" type="radio" value="0" checked="checked" />女</c:otherwise></c:choose></li><li><label>手机号</label><input name="phonenumber" type="text" class="dfinput" value="${user.phonenumber}"/></li><li><label>QQ号</label><input name="qqnumber" type="text" class="dfinput" value="${user.qqnumber}"/></li><li><label> </label><input type="submit" class="btn" value="确认保存"/></li></ul></form></div></body></html>
5 测试结果
