《原神攻略》薄荷採集地點整理
阿新 • • 發佈：2022-05-18
1.建庫，建表2個
使用者表（id,使用者名稱，密碼）
郵件表（id,發件人，收件人，標題，內容，傳送時間，狀態）
2.建model層
entity,dao包
3.登陸，註冊，登陸後顯示全部郵件
1 package com.cui.dao; 2 3 import java.sql.Connection; 4 import java.sql.DriverManager; 5 import java.sql.PreparedStatement; 6 import java.sql.ResultSet; 7 import java.sql.SQLException; 8 9 public class basedao {10 11 12 protected static Connection getConnection(){ 13 Connection conn=null; 14 try { 15 Class.forName("com.mysql.jdbc.Driver"); 16 conn=DriverManager.getConnection("jdbc:mysql://localhost:3306/email?useUnicode=true&characterEncoding=utf8","root","123456");17 System.out.println(conn); 18 19 } catch (Exception e) { 20 // TODO Auto-generated catch block 21 e.printStackTrace(); 22 } 23 return conn; 24 25 26 } 27 28 29 30 protected void closeall(Connection con,PreparedStatement ps,ResultSet rs){31 try { 32 if(rs!=null){rs.close();} 33 if(ps!=null){ps.close();} 34 if(con!=null){con.close();} 35 } catch (SQLException e) { 36 // TODO Auto-generated catch block 37 e.printStackTrace(); 38 } 39 40 } 41 }
1 package com.cui.dao; 2 3 import java.sql.Connection; 4 import java.sql.PreparedStatement; 5 import java.sql.ResultSet; 6 import java.sql.SQLException; 7 import java.util.ArrayList; 8 import java.util.List; 9 10 import com.cui.entity.message; 11 12 13 public class messagedao extends basedao{ 14 public List<message> getAll(String uname){ 15 List<message>list=new ArrayList<message>(); 16 Connection con=getConnection(); 17 PreparedStatement pred=null; 18 ResultSet resultSet=null; 19 String sql="select * from email where receiver=?"; 20 try { 21 pred=con.prepareStatement(sql); 22 pred.setString(1, uname); 23 resultSet=pred.executeQuery(); 24 while(resultSet.next()){ 25 message email=new message(); 26 email.setMid(resultSet.getInt(1)); 27 email.setUsername(resultSet.getString(2)); 28 email.setReceiver(resultSet.getString(3)); 29 email.setTitle(resultSet.getString(4)); 30 email.setText(resultSet.getString(5)); 31 email.setSendtime(resultSet.getDate(6)); 32 email.setState(resultSet.getInt(7)); 33 list.add(email); 34 } 35 } catch (SQLException e) { 36 37 e.printStackTrace(); 38 } 39 return list; 40 } 41 }
1 package com.cui.dao; 2 3 import java.sql.Connection; 4 import java.sql.PreparedStatement; 5 import java.sql.ResultSet; 6 import java.sql.SQLException; 7 8 public class usersdao extends basedao{ 9 10 public boolean login(String uname,String upwd){ 11 boolean f=false; 12 Connection conn=getConnection(); 13 String sql="select * from users where uname=? and upwd=?"; 14 PreparedStatement ps=null; 15 16 ResultSet rs=null; 17 try { 18 ps= conn.prepareStatement(sql); 19 ps.setString(1, uname); 20 ps.setString(2, upwd); 21 rs=ps.executeQuery(); 22 while(rs.next()){ 23 f=true; 24 } 25 26 } catch (SQLException e) { 27 // TODO Auto-generated catch block 28 e.printStackTrace(); 29 30 } finally{ 31 closeall(conn, ps, rs); 32 } 33 return f; 34 } 35 public int register(String uname,String upwd){ 36 int i=-1; 37 Connection con=basedao.getConnection(); 38 String sql="insert into users(uname,upwd)values(?,?)"; 39 PreparedStatement pred = null; 40 try { 41 pred=con.prepareStatement(sql); 42 pred.setString(1, uname); 43 pred.setString(2, upwd); 44 i =pred.executeUpdate(); 45 46 } catch (SQLException e) { 47 // TODO Auto-generated catch block 48 e.printStackTrace(); 49 }finally{ 50 closeall(con, pred, null); 51 } 52 return i; 53 54 55 } 56 }
1 package com.cui.entity; 2 3 import java.sql.Date; 4 5 public class message { 6 private int mid; //編號 7 private String username; //發件人姓名 8 private String receiver; //收件人姓名 9 private String title; //標題 10 private String text; //內容 11 private Date sendtime; //傳送時間 12 private int state; //狀態 13 public int getMid() { 14 return mid; 15 } 16 public void setMid(int mid) { 17 this.mid = mid; 18 } 19 public String getUsername() { 20 return username; 21 } 22 public void setUsername(String username) { 23 this.username = username; 24 } 25 public String getReceiver() { 26 return receiver; 27 } 28 public void setReceiver(String receiver) { 29 this.receiver = receiver; 30 } 31 public String getTitle() { 32 return title; 33 } 34 public void setTitle(String title) { 35 this.title = title; 36 } 37 public String getText() { 38 return text; 39 } 40 public void setText(String text) { 41 this.text = text; 42 } 43 public Date getSendtime() { 44 return sendtime; 45 } 46 public void setSendtime(Date sendtime) { 47 this.sendtime = sendtime; 48 } 49 public int getState() { 50 return state; 51 } 52 public void setState(int state) { 53 this.state = state; 54 } 55 56 57 58 }
1 package com.cui.entity; 2 3 public class users { 4 private int uid; //編號 5 private String uname; //賬號 6 private String upwd; //密碼 7 public int getUid() { 8 return uid; 9 } 10 public void setUid(int uid) { 11 this.uid = uid; 12 } 13 public String getUname() { 14 return uname; 15 } 16 public void setUname(String uname) { 17 this.uname = uname; 18 } 19 public String getUpwd() { 20 return upwd; 21 } 22 public void setUpwd(String upwd) { 23 this.upwd = upwd; 24 } 25 26 }
1 <%@page import="com.cui.dao.messagedao"%> 2 <%@page import="com.cui.dao.usersdao"%> 3 <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> 4 5 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 6 <html> 7 <head> </head> 8 9 <body> 10 <% 11 String uname=request.getParameter("uname"); 12 String upwd=request.getParameter("upwd"); 13 usersdao ud=new usersdao(); 14 if(ud.login(uname, upwd)){ 15 session.setAttribute("uname", uname); 16 request.getRequestDispatcher("main.jsp").forward(request,response); 17 }else{ 18 out.print("登陸失敗，三秒後返回登入介面"); 19 response.setHeader("refresh", "3;url=login.jsp"); 20 } 21 22 23 %> 24 </body> 25 </html>
1 <%@page import="com.cui.dao.messagedao"%> 2 <%@page import="com.cui.dao.usersdao"%> 3 <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> 4 5 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 6 <html> 7 <head> </head> 8 9 <body> 10 <% 11 String uname=request.getParameter("uname"); 12 String upwd=request.getParameter("upwd"); 13 usersdao ud=new usersdao(); 14 if(ud.login(uname, upwd)){ 15 session.setAttribute("uname", uname); 16 request.getRequestDispatcher("main.jsp").forward(request,response); 17 }else{ 18 out.print("登陸失敗，三秒後返回登入介面"); 19 response.setHeader("refresh", "3;url=login.jsp"); 20 } 21 22 23 %> 24 </body> 25 </html>
1 <%@page import="com.cui.dao.usersdao"%> 2 <%@page import="javax.xml.bind.ParseConversionEvent"%> 3 <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> 4 5 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 6 <html> 7 <head> 8 </head> 9 10 <body> 11 <% 12 String uname = request.getParameter("uname"); 13 String upwd = request.getParameter("upwd"); 14 usersdao u=new usersdao(); 15 int i=u.register(uname, upwd); 16 if (i > 0) { 17 out.print("註冊成功，三秒後返回登入介面"); 18 response.setHeader("refresh", "3;url=login.jsp"); 19 } else { 20 out.print("註冊失敗，三秒後返回註冊介面"); 21 response.setHeader("refresh", "3;url=register.jsp"); 22 } 23 %> 24 </body> 25 </html>
1 <%@ page language="java" import="java.util.*" pageEncoding="ISO-8859-1"%> 2 <% 3 String path = request.getContextPath(); 4 String basePath = request.getScheme()+"://"+request.getServerName()+":"+request.getServerPort()+path+"/"; 5 %> 6 7 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 8 <html> 9 <head> 10 <base href="<%=basePath%>"> 11 12 <title>My JSP 'index.jsp' starting page</title> 13 <meta http-equiv="pragma" content="no-cache"> 14 <meta http-equiv="cache-control" content="no-cache"> 15 <meta http-equiv="expires" content="0"> 16 <meta http-equiv="keywords" content="keyword1,keyword2,keyword3"> 17 <meta http-equiv="description" content="This is my page"> 18 <!-- 19 <link rel="stylesheet" type="text/css" href="styles.css"> 20 --> 21 </head> 22 23 <body> 24 This is my JSP page. <br> 25 </body> 26 </html>
1 <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> 2 3 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 4 <html> 5 <head> </head> 6 7 <body> 8 <form action="dologin.jsp" method="post"> 9 賬號：<input type="text" name="uname" ><br> 10 密碼：<input type="upwd" name="upwd" ><br> 11 <input type="submit" value=登入> 12 <a href="register.jsp" >註冊</a> 13 14 </form> 15 </body> 16 </html>
1 <%@page import="com.cui.entity.message"%> 2 <%@page import="com.cui.dao.messagedao"%> 3 <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> 4 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 5 <html> 6 <head> </head> 7 <body> 8 <% 9 messagedao md=new messagedao(); 10 String name=(String)session.getAttribute("uname"); 11 List<message> list=md.getAll(name);%> 12 歡迎你<%=name %> 13 <table> 14 <tr><td>編號</td> 15 <td>發件人</td> 16 <td>收件人</td> 17 <td>標題</td> 18 <td>內容</td> 19 <td>傳送時間</td> 20 <td>狀態</td> 21 </tr> 22 <%for(int i=0;i<list.size();i++){%> 23 <tr><td><%out.print(list.get(i).getMid());%></td> 24 <td><%out.print(list.get(i).getUsername());%></td> 25 <td><% out.print(list.get(i).getReceiver());%></td> 26 <td><%out.print(list.get(i).getTitle());%></td> 27 <td><% out.print(list.get(i).getText());%></td> 28 <td><% out.print(list.get(i).getSendtime());%></td> 29 <td><% out.print(list.get(i).getState());%></td></tr> 30 <%}%> 31 </table> 32 </body> 33 </html>
1 <%@ page language="java" import="java.util.*" pageEncoding="utf-8"%> 2 3 <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"> 4 <html> 5 <head> </head> 6 7 <body> 8 <form action="doregister.jsp" method="post"> 9 賬號：<input type="text" name="uname"><br> 10 密碼：<input type="text" name="upwd"><br> 11 <input type="submit"value="註冊"> 12 <input type="reset" value="重置 "> 13 </form> 14 </body> 15 </html>