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index.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>首页</title> </head> <style type="text/css"> *{margin: 0;padding: 0} html,body{height: 100%} /*这里很关键*/ .outer-wrap{ /*只有同时为html和body设置height: 100%时，这里的height才生效， 并且随浏览器窗口变化始终保持和浏览器视窗等高*/ height: 100%; position: relative; background-image: url('images/01.jpg'); } .index-panel{ 400px; height: 300px; background-image: url('images/04.jpg'); position: absolute; top: 50%; left: 50%; margin-top: -150px; margin-left: -200px; } </style> <body> <% request.setCharacterEncoding("utf-8"); String message=(String)request.getAttribute("message"); if(message!=null){ if(message.equals("error")){ %> <script type="text/javascript"> alert("用户名或密码错误"); </script> <% }else if(message.equals("noerror")){ %> <script type="text/javascript"> alert("登录成功"); </script> <% }else{ } } %> <div class="outer-wrap"> <div style="font-size:160px;text-align:center">家庭记账本</div> <div class="index-panel"> <div style="font-size:40px;text-align:center">欢迎您的使用</div> <div style="font-size:30px;text-align:center"> <a href="add.jsp">记账</a><br/> </div> <div style="font-size:30px;text-align:center"> <a href="show.jsp">查看账目</a> </div> </div> </div> </body> </html>
add.jsp
<%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <!DOCTYPE html> <html> <head> <meta charset="UTF-8"> <title>记账</title> </head> <style type="text/css"> *{margin: 0;padding: 0} html,body{height: 100%} /*这里很关键*/ .outer-wrap{ /*只有同时为html和body设置height: 100%时，这里的height才生效， 并且随浏览器窗口变化始终保持和浏览器视窗等高*/ height: 100%; position: relative; background-image: url('images/01.jpg'); } .add-panel{ 400px; height: 300px; background-image: url('images/06.jpg'); position: absolute; top: 50%; left: 50%; margin-top: -150px; margin-left: -200px; } </style> <body> <% request.setCharacterEncoding("utf-8"); String message=(String)request.getAttribute("message"); if(message!=null){ if(message.equals("error")){ %> <script type="text/javascript"> alert("添加失败"); </script> <% }else if(message.equals("noerror")){ %> <script type="text/javascript"> alert("添加成功"); </script> <% }else{ } } %> <div class="outer-wrap"> <div style="font-size:160px;text-align:center">家庭记账本</div> <div class="add-panel"> <div style="text-align:center;color:yellow">请输入要添加的账目信息：</div><br/> <form action="AddBillServlet" method="post"> <div style="text-align:center;color:yellow"> 账目类型<select id="btype" name="btype"> <option value="饮食">饮食</option> <option value="教育">教育</option> <option value="购物">购物</option> <option value="医疗">医疗</option> <option value="收入">收入</option> <option value="借贷">借贷</option> <option value="其它">其它</option> </select> </div> <div style="text-align:center;color:red">注：借贷和其它类型的账目不计入收支</div> <div style="text-align:center;color:yellow"> 金额<input type="text" name="bmoney"><br/> </div> <div style="text-align:center;color:yellow"> 日期<input type="date" name="bdate"><br/> </div> <div style="text-align:center;color:yellow"> 备注<input type="text" name="bremark"><br/> </div> <div style="text-align:center;color:yellow"> <input type="submit" value="添加"><br/> </div> </form> </div> </div> </body> </html>
AddBillServlet.java
package com.zzw.servlet; import java.io.IOException; import javax.servlet.ServletException; import javax.servlet.http.HttpServlet; import javax.servlet.http.HttpServletRequest; import javax.servlet.http.HttpServletResponse; import com.zzw.entity.Bill; import com.zzw.service.IUserService; import com.zzw.service.Impl.UserServiceImpl; public class AddBillServlet extends HttpServlet { protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { request.setCharacterEncoding("utf-8"); response.setCharacterEncoding("utf-8"); response.setContentType("text/html; charset=utf-8"); String type= request.getParameter("btype"); int money=Integer.parseInt(request.getParameter("bmoney")); String date= request.getParameter("bdate"); String remark= request.getParameter("bremark"); Bill bill =new Bill(type,money,date,remark); //接口 x=new 实现类（） IUserService userservice = new UserServiceImpl(); boolean result=userservice.AddBill(bill); if(!result) { request.setAttribute("message","error"); }else { request.setAttribute("message","noerror"); } request.getRequestDispatcher("add.jsp").forward(request, response); } protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException { // TODO Auto-generated method stub doGet(request, response); } }
UserServiceImpl.java
package com.zzw.service.Impl; import com.zzw.dao.IUserDao; import com.zzw.dao.Impl.UserDaoImpl; import com.zzw.entity.Bill; import com.zzw.entity.User; import com.zzw.service.IUserService; public class UserServiceImpl implements IUserService{ IUserDao userdao= new UserDaoImpl(); //登录 public boolean Login(User user) { boolean flag=false; if(userdao.Login(user.getUname(),user.getUpwd())) { flag=true; } return flag; } //注册 public boolean Register(User user) { boolean flag=false; if(!userdao.isExist(user.getUname())) { userdao.Register(user); flag=true; }else { System.out.println("此人已存在"); } return flag; } //根据账号查询用户 public User Query(String uname) { return userdao.Query(uname); } //记账 public boolean AddBill(Bill bill) { boolean flag=false; if(userdao.AddBill(bill)) { flag=true; } return flag; } }
IUserService.java
package com.zzw.service; import com.zzw.entity.Bill; import com.zzw.entity.User; public interface IUserService { //登录 public boolean Login(User user); //注册 public boolean Register(User user) ; //根据账号查询用户 public User Query(String uname) ; //记账 public boolean AddBill(Bill bill) ; }
Bill.java
package com.zzw.entity; public class Bill { private int bid; private String btype; private int bmoney; private String bdate; private String bremark; public Bill() { } public Bill(String btype, int bmoney, String bdate, String bremark) { this.btype = btype; this.bmoney = bmoney; this.bdate = bdate; this.bremark = bremark; } public Bill(int bid, String btype, int bmoney, String bdate, String bremark) { this.bid = bid; this.btype = btype; this.bmoney = bmoney; this.bdate = bdate; this.bremark = bremark; } @Override public String toString() { return "Bill [bid=" + bid + ", btype=" + btype + ", bmoney=" + bmoney + ", bdate=" + bdate + ", bremark=" + bremark + "]"; } public int getBid() { return bid; } public void setBid(int bid) { this.bid = bid; } public String getBtype() { return btype; } public void setBtype(String btype) { this.btype = btype; } public int getBmoney() { return bmoney; } public void setBmoney(int bmoney) { this.bmoney = bmoney; } public String getBdate() { return bdate; } public void setBdate(String bdate) { this.bdate = bdate; } public String getBremark() { return bremark; } public void setBremark(String bremark) { this.bremark = bremark; } }
UserDaoImpl.java
package com.zzw.dao.Impl; import java.sql.ResultSet; import java.sql.SQLException; import com.zzw.dao.IUserDao; import com.zzw.entity.Bill; import com.zzw.entity.User; import com.zzw.utils.DBUtil; public class UserDaoImpl implements IUserDao{ //注册 public boolean Register(User user) { String sql="insert into user(uname,upwd,usex) values(?,?,?)" ; Object [] params= {user.getUname(),user.getUpwd(),user.getUsex()}; return DBUtil.executeUpdate(sql, params); } //查询账户是否存在 public boolean isExist(String uname) { return Query(uname)==null? false:true; } //登录 public boolean Login(String uname,String upwd) { return Query(uname,upwd)==null? false:true; } //根据账号查询用户全部信息 public User Query(String uname) { User user= null; ResultSet rs = null; try { String sql="select * from user where uname =?" ; Object [] params= {uname}; rs=DBUtil.executeQuery(sql, params); if(rs.next()) { String name=rs.getString("uname"); String pwd=rs.getString("upwd"); String sex=rs.getString("usex"); user= new User(name,pwd,sex); } }catch(SQLException e) { e.printStackTrace(); }catch(Exception e) { e.printStackTrace(); }finally { try { //先开的后关，后开的先关 if(rs!=null)rs.close(); if(DBUtil.pstmt!=null)DBUtil.pstmt.close(); if(DBUtil.connection !=null)DBUtil.connection.close(); }catch(SQLException e) { e.printStackTrace(); }finally { } } return user; } //根据账户密码确定是否存在 public User Query(String uname,String upwd) { User user= null; ResultSet rs = null; try { String sql="select * from user where uname =? and upwd=?" ; Object [] params= {uname,upwd}; rs=DBUtil.executeQuery(sql, params); if(rs.next()) { String name=rs.getString("uname"); String pwd=rs.getString("upwd"); String sex=rs.getString("usex"); user= new User(name,pwd,sex); } }catch(SQLException e) { e.printStackTrace(); }catch(Exception e) { e.printStackTrace(); }finally { try { //先开的后关，后开的先关 if(rs!=null)rs.close(); if(DBUtil.pstmt!=null)DBUtil.pstmt.close(); if(DBUtil.connection !=null)DBUtil.connection.close(); }catch(SQLException e) { e.printStackTrace(); }finally { } } return user; } //记账 public boolean AddBill(Bill bill) { String sql="insert into bill(btype,bmoney,bdate,bremark) values(?,?,?,?)" ; Object [] params= {bill.getBtype(),bill.getBmoney(),bill.getBdate(),bill.getBremark()}; return DBUtil.executeUpdate(sql, params); } }
IUserDao.java
package com.zzw.dao; import com.zzw.entity.Bill; import com.zzw.entity.User; public interface IUserDao { //注册 public boolean Register(User user) ; //查询账户是否存在 public boolean isExist(String uname) ; //登录 public boolean Login(String uname,String upwd) ; //根据帐号查询用户全部信息 public User Query(String uname) ; //记账 public boolean AddBill(Bill bill); }
下图为数据库中bill表
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