jsp第十一周作业
1.建库，建表2个
用户表（id,用户名，密码）
邮件表（id,发件人，收件人，标题，内容，发送时间，状态）
2.建model层
entity,dao包
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <html> <head> </head> <body> <script type="text/javascript"> function loginButton(){ if(loginFrom.uname.value==""){ alert("用户名不能为空"); return; } if(loginFrom.upwd.value==""){ alert("密码不能为空"); return; } loginFrom.submit(); } </script> <form action="dologin.jsp" name="loginFrom" method="post"> 用户名:<input type="text" name="uname"/><br> 密码:<input type="password" name="upwd"/><br> <input type="button" value="登录" onclick="loginButton()"/><br> <a href="zc.jsp">注册</a> </form> </body> </html>
<%@page import="com.ff.dao.emailDao"%> <%@page import="com.ff.dao.usersDao"%> <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; %> <html> <head> </head> <body> <% request.setCharacterEncoding("utf-8"); String uname= request.getParameter("uname"); String upwd=request.getParameter("upwd"); usersDao ud=new usersDao(); emailDao ed=new emailDao(); if(ud.login(uname, upwd)){ session.setAttribute("uname", uname); request.getRequestDispatcher("main.jsp").forward(request, response); }else{ out.print("登录失败，5秒后跳回登录页"); response.setHeader("refresh", "5;url=login.jsp"); } %> </body> </html>
<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort() + path + "/"; %> <html> <head> </head> <body> <script type="text/javascript"> function zcButton() { if (loginForm.uname.value == "") { alert("用户名不能为空"); return; } if (loginForm.upwd.value == "") { alert("密码不能为空"); return; } if (loginForm.rupwd.value == "") { alert("未确认密码"); return; } loginForm.submit(); } </script> <form action="dozc.jsp" name="loginForm" method="post"> 请输入用户名：<input type="text" name="uname" /><br> 请输入密码：<input type="password" name="upwd" /><br> 确认密码：<input type="password" name="rupwd" /><br> <input type="button" value="注册" onclick="zcButton()" /><br> <a href="login.jsp">返回登录</a> </form> </body> </html>
<%@page import="com.ff.dao.usersDao"%> <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <% String path = request.getContextPath(); String basePath = request.getScheme() + "://" + request.getServerName() + ":" + request.getServerPort() + path + "/"; %> <html> <head> </head> <body> <% request.setCharacterEncoding("utf-8"); String uname = request.getParameter("uname"); String upwd = request.getParameter("upwd"); String rupwd = request.getParameter("rupwd"); if (upwd.equals(rupwd)) { usersDao ud = new usersDao(); ud.register(uname, upwd); out.print("注册成功5秒返回登录页！！！"); response.setHeader("refresh", "5;url=login.jsp"); } else { out.print("两次密码不一致，5秒后跳回注册页！！！"); response.setHeader("refresh", "5;url=zc.jsp"); } %> </body> </html>
<%@page import="com.ff.entity.email"%> <%@page import="com.ff.dao.emailDao"%> <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> <html> <head> </head> <body> <% request.setCharacterEncoding("utf-8"); String uname = (String)session.getAttribute("uname"); emailDao ed=new emailDao(); List<email> list=ed.getMailByReceiver(uname); %> 欢迎你，<%=uname%><br> <table width="800px" style="border: 1px solid pink;"> <tr> <td>发件人</td> <td>主题</td> <td>状态</td> <td>时间</td> </tr> <% if (list.size() == 0) { out.print("还没有人给您写文件哦！！！"); } else { for(int i=0;i<list.size();i++){ %> <tr> <td> <% out.print(list.get(i).getAddress()); %> </td> <td> <% out.print(list.get(i).getTitle()); %> </td> <td> <% if (list.get(i).getState() ==0){ out.print("<img src='unread.png'></img>"); } else { out.print("<img src='read.png'/>"); } %> </td> <td><%out.print(list.get(i).getTime()); %></td> </tr> <%}}%> </table> </body> </html>
package com.ff.dao; import java.sql.Connection; import java.sql.DriverManager; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.sql.SQLException; import java.util.List; import javax.naming.Context; import javax.naming.InitialContext; import javax.naming.NamingException; import javax.sql.DataSource; public class BaseDao { //获取连接 protected Connection getConnection(){ Connection conn=null; try { Class.forName("com.mysql.jdbc.Driver"); // 2.建立连接 conn = DriverManager.getConnection( "jdbc:mysql://localhost:3306/test", "root", "123456"); } catch (Exception e) { e.printStackTrace(); } return conn; } //关闭连接 protected void closeAll(Connection con,PreparedStatement ps,ResultSet rs){ try { if(rs != null) rs.close(); if(ps != null) ps.close(); if(con != null) con.close(); } catch (SQLException e) { e.printStackTrace(); } } }
package com.ff.dao; import java.sql.Connection; import java.sql.PreparedStatement; import java.sql.ResultSet; import java.util.ArrayList; import java.util.List; import com.ff.entity.email; public class emailDao extends BaseDao { public List<email> getMailByReceiver(String uname) { List<email> list=new ArrayList<email>(); Connection con=getConnection(); String sql="select * from email where receiver=?"; PreparedStatement ps=null; ResultSet rs=null; try{ ps=con.prepareStatement(sql); ps.setString(1,uname); rs=ps.executeQuery(); while(rs.next()){ email e=new email(); e.setId(rs.getInt(1)); e.setAddress(rs.getString(2)); e.setReceiver(rs.getString(3)); e.setTitle(rs.getString(4)); e.setContents(rs.getString(5)); e.setTime(rs.getDate(6)); e.setState(rs.getInt(7)); list.add(e); } }catch (Exception e) { // TODO: handle exception e.printStackTrace(); }finally{ closeAll(con, ps, rs); } return list; } }
package com.ff.dao; import java.sql.Connection; import java.sql.PreparedStatement; import java.sql.ResultSet; public class usersDao extends BaseDao{ //登录 public boolean login(String uname,String upwd){ boolean f=false; //建立连接 Connection conn=getConnection(); //编写SQL语句 String sql="select * from users where uname=? and upwd=?"; PreparedStatement ps; try{ ps=conn.prepareStatement(sql); ps.setString(1,uname); ps.setString(2, upwd); ResultSet rs=ps.executeQuery(); if(rs.next()){ f=true; closeAll(conn, ps, rs); } }catch (Exception e) { // TODO: handle exception } return f; } //注册 public void register(String uname,String upwd) { Connection conn=getConnection(); PreparedStatement ps=null; try{ String sql="insert into users(uname,upwd)value(?,?)"; ps=conn.prepareStatement(sql); ps.setString(1, uname); ps.setString(2, upwd); ps.executeUpdate(); }catch (Exception e) { // TODO: handle exception e.printStackTrace(); }finally{ closeAll(conn, ps, null); } } }
package com.ff.entity; import java.util.Date; public class email { private int id; private String address; private String receiver; private String title; private String contents; private Date time; private int state; public int getId() { return id; } public void setId(int id) { this.id = id; } public String getAddress() { return address; } public void setAddress(String address) { this.address = address; } public String getReceiver() { return receiver; } public void setReceiver(String receiver) { this.receiver = receiver; } public String getTitle() { return title; } public void setTitle(String title) { this.title = title; } public String getContents() { return contents; } public void setContents(String contents) { this.contents = contents; } public Date getTime() { return time; } public void setTime(Date time) { this.time = time; } public int getState() { return state; } public void setState(int state) { this.state = state; } }
package com.ff.entity; public class users { private int id; private String uname; private String upwd; public int getId() { return id; } public void setId(int id) { this.id = id; } public String getUname() { return uname; } public void setUname(String uname) { this.uname = uname; } public String getUpwd() { return upwd; } public void setUpwd(String upwd) { this.upwd = upwd; } public users() { super(); } }
3.登陆，注册，登陆后显示全部邮件
