密码 我要注册 login_pro.jsp <% String username=request.getParameter("username"); String password=request.getParameter("password"); request.setAttribute("username"/> 密码 我要注册 login_pro.jsp <% String username=request.getParameter("username"); String password=request.getParameter("password"); request.setAttribute("username"/>
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jsp增删改查2Webroot文件夹下: Webroot文件夹下: Index.Jsp 用户登录页面 请输入登陆信息 姓名:"/> 密码 我要注册 login_pro.jsp <% String username=request.getParameter("username"); String password=request.getParameter("password"); request.setAttribute("username...

jsp增删改查2
Webroot文件夹下: Webroot文件夹下: Index.Jsp <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> 用户登录页面 <%=request.getAttribute("msg")!=null?request.getAttribute("msg"):"" %>
请输入登陆信息
姓名:"/>
密码
我要注册 login_pro.jsp <%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <%@page import="com.king.bean.UserInfo"%> <%@page import="com.king.dao.UserDao"%> <%@page import="com.king.dao.UserDaoImpl"%> <% String username=request.getParameter("username"); String password=request.getParameter("password"); request.setAttribute("username_reg",new String(username.getBytes("iso-8859-1"),"utf-8")); if(username==null||username.trim().equals("")){ request.setAttribute("msg","用户名不能为空!"); request.getRequestDispatcher("index.jsp").forward(request,response); }else if(password==null||password.trim().equals("")){ request.setAttribute("msg","密码不能为空!"); request.getRequestDispatcher("index.jsp").forward(request,response); }else{ UserInfo u=new UserInfo(); u.setUsername(new String(username.getBytes("iso-8859-1"),"utf-8")); u.setPassword(new String(password.getBytes("iso-8859-1"),"utf-8")); UserDao dao=new UserDaoImpl(); boolean flag=dao.loginUser(u); if(flag==true){ request.setAttribute("username",u.getUsername()); request.getRequestDispatcher("userList_pro.jsp").forward(request,response); }else{ request.setAttribute("msg","登陆信息有误,请再次登陆或注册!"); request.getRequestDispatcher("index.jsp ").forward(request,response); } } %> <%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <%@page import="com.king.bean.UserInfo"%> <%@page import="com.king.dao.UserDao"%> <%@page import="com.king.dao.UserDaoImpl"%> <% String username=request.getParameter("username"); String password=request.getParameter("password"); request.setAttribute("username_reg",new String(username.getBytes("iso-8859-1"),"utf-8")); if(username==null||username.trim().equals("")){ request.setAttribute("msg","用户名不能为空!"); request.getRequestDispatcher("index.jsp").forward(request,response); }else if(password==null||password.trim().equals("")){ request.setAttribute("msg","密码不能为空!"); request.getRequestDispatcher("index.jsp").forward(request,response); }else{ UserInfo u=new UserInfo(); u.setUsername(new String(username.getBytes("iso-8859-1"),"utf-8")); u.setPassword(new String(password.getBytes("iso-8859-1"),"utf-8")); UserDao dao=new UserDaoImpl(); boolean flag=dao.loginUser(u); if(flag==true){ request.setAttribute("username",u.getUsername()); request.getRequestDispatcher("userList_pro.jsp").forward(request,response); }else{ request.setAttribute("msg","登陆信息有误,请再次登陆或注册!"); request.getRequestDispatcher("index.jsp ").forward(request,response); } } register.jsp(注册) <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> jsp注册页面 <%=request.getAttribute("msg")!=null?request.getAttribute("msg"):"" %>
请输入注册信息
姓名:"/>
密码
register_pro.jsp(注册处理) <%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <%@page import="com.king.bean.UserInfo"%> <%@page import="com.king.dao.UserDao"%> <%@page import="com.king.dao.UserDaoImpl"%> <% String username=request.getParameter("username"); String password=request.getParameter("password"); request.setAttribute("username_reg",new String(username.getBytes("iso-8859-1"),"utf-8")); if(username==null||username.trim().equals("")){ request.setAttribute("msg","用户名不能为空!"); request.getRequestDispatcher("register.jsp").forward(request,response); }else if(password==null||password.trim().equals("")){ request.setAttribute("msg","密码不能为空!"); request.getRequestDispatcher("register.jsp").forward(request,response); }else{ UserInfo u=new UserInfo(); u.setUsername(new String(username.getBytes("iso-8859-1"),"utf-8")); u.setPassword(new String(password.getBytes("iso-8859-1"),"utf-8")); UserDao dao=new UserDaoImpl(); boolean flag=dao.saveUser(u); if(flag==true){ request.getSession().setAttribute("username",u.getUsername()); request.getRequestDispatcher("userList_pro.jsp").forward(request,response); }else{ request.getRequestDispatcher("register.jsp").forward(request,response); } } %> %> 查看: user_view.jsp <%@ page language="java" contentType="text/html; charset=utf-8" pageEncoding="utf-8"%> <%@page import="com.king.bean.UserInfo"%> 用户信息页面 <%UserInfo u=(UserInfo)request.getSession().getAttribute("userInfo_update"); %>
用户信息用户
ID:<%=u.getId() %> 用户名:<%=u.getUsername()%> 密码:<%=u.getPassword() %>
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userList_pro.jsp列表处理 <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <%@page import="com.king.dao.UserDao"%> <%@page import="com.king.dao.UserDaoImpl"%> <% UserDao dao=new UserDaoImpl(); List userList=dao.fecthUserList(); if(userList!=null&&userList.size()>0){ request.setAttribute("userList",userList); request.getRequestDispatcher("userList.jsp").forward(request,response); }else{ request.setAttribute("msg","目前无用户信息,请注册!"); request.getRequestDispatcher("register.jsp").forward(request,response); } %>
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