家庭記帳本的記帳功能實現

時間  2020-01-27
標籤 家庭 記帳 功能 實現 简体版
原文   原文鏈接

 

 

 

 

此處只放相關部分，若有須要，請參考同名下本人的其餘博客javascript

 

index.jspcss

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>首頁</title>
</head>
<style type="text/css">
        *{margin: 0;padding: 0}
        html,body{height: 100%}     /*這裏很關鍵*/
 
        .outer-wrap{
            /*只有同時爲html和body設置height: 100%時，這裏的height才生效，
            而且隨瀏覽器窗口變化始終保持和瀏覽器視窗等高*/
            height: 100%;    
            position: relative;
            background-image: url('images/01.jpg');
        }
        .index-panel{
            width: 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("用戶名或密碼錯誤");
         </script>
         <%
      }else if(message.equals("noerror")){
          %>
          <script type="text/javascript">
              alert("登陸成功");
         </script>
         <%
      }else{
      }
      }
      %>
      <div class="outer-wrap">
      <div style="font-size:160px;text-align:center">家庭記帳本</div>
      <div class="index-panel">
           <div  style="font-size:40px;text-align:center">歡迎您的使用</div>
           <div style="font-size:30px;text-align:center">  <a href="add.jsp">記帳</a><br/> </div>
           <div style="font-size:30px;text-align:center"> <a href="show.jsp">查看帳目</a> </div>
            
      </div>
      </div>
</body>
</html>

add.jsphtml

<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>記帳</title>
</head>
 <style type="text/css">
        *{margin: 0;padding: 0}
        html,body{height: 100%}     /*這裏很關鍵*/
 
        .outer-wrap{
            /*只有同時爲html和body設置height: 100%時，這裏的height才生效，
            而且隨瀏覽器窗口變化始終保持和瀏覽器視窗等高*/
            height: 100%;    
            position: relative;
            background-image: url('images/01.jpg');
        }
        .add-panel{
            width: 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("添加失敗");
         </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">家庭記帳本</div>
      <div class="add-panel">
      <div style="text-align:center;color:yellow">請輸入要添加的帳目信息：</div><br/>
      <form action="AddBillServlet" method="post">
      
    <div style="text-align:center;color:yellow">
             帳目類型<select id="btype" name="btype">
            <option value="飲食">飲食</option>
            <option value="教育">教育</option>
            <option value="購物">購物</option>
            <option value="醫療">醫療</option>
            <option value="收入">收入</option>
            <option value="借貸">借貸</option>
            <option value="其它">其它</option>
        </select>
    </div>
    <div style="text-align:center;color:red">注：借貸和其它類型的帳目不計入收支</div>
    <div style="text-align:center;color:yellow">
     金額<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">
     備註<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.javajava

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 實現類（）
        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.javasql

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();
    //登陸
     public boolean Login(User user) {
            boolean flag=false;
          if(userdao.Login(user.getUname(),user.getUpwd())) {
                flag=true;
          }
          return flag;
     }
    //註冊
    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; 
    }
  //根據帳號查詢用戶
    public User Query(String uname) {
        return userdao.Query(uname);
    }
    //記帳
    public boolean  AddBill(Bill bill) {
        boolean flag=false;
        if(userdao.AddBill(bill)) {
           flag=true;
        }
        return flag;
    }
}

IUserService.java數據庫

package com.zzw.service;

import com.zzw.entity.Bill;
import com.zzw.entity.User;

public interface IUserService {
    //登陸
         public boolean Login(User user);
    //註冊
         public boolean Register(User user) ;
    //根據帳號查詢用戶
         public User Query(String uname) ;
    //記帳
         public boolean  AddBill(Bill bill) ;
}

Bill.java瀏覽器

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.javajsp

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{
    //註冊
            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);
            }
            //查詢帳戶是否存在
            public  boolean isExist(String uname) {
                return Query(uname)==null? false:true;
            }
    //登陸
           public boolean Login(String uname,String upwd) {
               return Query(uname,upwd)==null? false:true;
           }
    //根據帳號查詢用戶所有信息
    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 {
                    //先開的後關，後開的先關
                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;
    }
    //根據帳戶密碼肯定是否存在
    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 {
                   //先開的後關，後開的先關
               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;
    }
    //記帳
    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.javaide

package com.zzw.dao;

import com.zzw.entity.Bill;
import com.zzw.entity.User;

public interface IUserDao {
    //註冊
    public  boolean Register(User user) ;
    //查詢帳戶是否存在
    public  boolean isExist(String uname) ;
    //登陸
    public  boolean Login(String uname,String upwd) ;
    //根據賬號查詢用戶所有信息
    public   User Query(String uname) ;
    //記帳
    public  boolean AddBill(Bill bill);
}

 

 

 

下圖爲數據庫中bill表post

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