按账目类型和日期查看账目

时间：2020-01-28 23:34:18 阅读：130 评论：0 收藏：0 [点我收藏+]

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从首页开始进行测试

技术图片

screen.jsp

<%@page import="com.zzw.entity.Bill"%>
<%@page import="java.util.List"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>按类型和日期查询账目</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‘);
        }
        .screen-panel{
            width: 400px;
            height: 300px;
            background-image: url(‘images/05.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("操作失败");
         </script>
         <%
      }else if(message.equals("noerror")){
          %>
          <script type="text/javascript">
              alert("操作成功");
         </script>
         <%
      }else{
      }
      }
      %>
<div class="outer-wrap">
      <div style="font-size:160px;text-align:center">家庭记账本</div>
      <div class="screen-panel">
      <a href=index.jsp>返回系统首页</a><br>
      <form action="QueryPartBillServlet" method="post" onsubmit="return checkName()">
      
    <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:yellow">
     日期<input type="date"  name="bdate"><br/>
    </div>
   <div style="text-align:center;color:yellow">
     <input type="submit" class="btn btn-primary" value="查询"><br/>
    </div>
    </form>
<script src="jquery-3.4.1.min.js"></script>
    <script>
        function checkName() {
            var date = document.getElementById("bdate");
            if (date.value==null||date.value == "") {
                alert("请选择日期");
                return false;
            }
            return true;
        }
    </script>
          <table border="1px">
         <tr>
         <th>账目编号</th>
         <th>账目类型</th>
         <th>金额</th>
         <th>账目日期</th>
         </tr>
         <%
         List <Bill> bills =(List<Bill>) request.getAttribute("bills");
         if(bills!=null){
           for(Bill bill:bills){
               %>
               
               <tr>                   
                   <td><%=bill.getBid() %></td>
                   <td><%=bill.getBtype() %></td>
                   <td><%=bill.getBmoney() %></td>
                   <td><%=bill.getBdate() %></td>
                   <td><a href ="DeleteBillServlet?bid=<%=bill.getBid() %>">删除</a></td>
                   <td><a href="QueryBillServlet?bid=<%=bill.getBid() %>">查询</a></td>
               </tr>
               <%
           }
         }
         %>
      </table>
      </div>
      </div>
</body>
</html>

screentype.jsp

<%@page import="com.zzw.entity.Bill"%>
<%@page import="java.util.List"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>按类型查询账目</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‘);
        }
        .screen-panel{
            width: 400px;
            height: 300px;
            background-image: url(‘images/05.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("操作失败");
         </script>
         <%
      }else if(message.equals("noerror")){
          %>
          <script type="text/javascript">
              alert("操作成功");
         </script>
         <%
      }else{
      }
      }
      %>
<div class="outer-wrap">
      <div style="font-size:160px;text-align:center">家庭记账本</div>
      <div class="screen-panel">
      <a href=index.jsp>返回系统首页</a><br>
      <form action="QueryTypeServlet" 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:yellow">
     <input type="submit"  value="查询"><br/>
    </div>
    </form>


          <table border="1px">
         <tr>
         <th>账目编号</th>
         <th>账目类型</th>
         <th>金额</th>
         <th>账目日期</th>
         </tr>
         <%
         List <Bill> bills =(List<Bill>) request.getAttribute("bills");
         if(bills!=null){
           for(Bill bill:bills){
               %>
               
               <tr>                   
                   <td><%=bill.getBid() %></td>
                   <td><%=bill.getBtype() %></td>
                   <td><%=bill.getBmoney() %></td>
                   <td><%=bill.getBdate() %></td>
                   <td><a href ="DeleteBillServlet?bid=<%=bill.getBid() %>">删除</a></td>
                   <td><a href="QueryBillServlet?bid=<%=bill.getBid() %>">查询</a></td>
               </tr>
               <%
           }
         }
         %>
      </table>
      </div>
      </div>
</body>
</html>

screendate.jsp

<%@page import="com.zzw.entity.Bill"%>
<%@page import="java.util.List"%>
<%@ page language="java" contentType="text/html; charset=UTF-8"
    pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>按日期查询账目</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‘);
        }
        .screen-panel{
            width: 400px;
            height: 300px;
            background-image: url(‘images/05.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("操作失败");
         </script>
         <%
      }else if(message.equals("noerror")){
          %>
          <script type="text/javascript">
              alert("操作成功");
         </script>
         <%
      }else{
      }
      }
      %>
<div class="outer-wrap">
      <div style="font-size:160px;text-align:center">家庭记账本</div>
      <div class="screen-panel">
      <a href=index.jsp>返回系统首页</a><br>
      <form action="QueryDateServlet" method="post" onsubmit="return checkName()">
      
    <div style="text-align:center;color:yellow">
     日期<input type="date"  name="bdate"><br/>
    </div>
   <div style="text-align:center;color:yellow">
     <input type="submit" class="btn btn-primary" value="查询"><br/>
    </div>
    </form>
<script src="jquery-3.4.1.min.js"></script>
    <script>
        function checkName() {
            var date = document.getElementById("bdate");
            if (date.value==null||date.value == "") {
                alert("请选择日期");
                return false;
            }
            return true;
        }
    </script>
          <table border="1px">
         <tr>
         <th>账目编号</th>
         <th>账目类型</th>
         <th>金额</th>
         <th>账目日期</th>
         </tr>
         <%
         List <Bill> bills =(List<Bill>) request.getAttribute("bills");
         if(bills!=null){
           for(Bill bill:bills){
               %>
               
               <tr>                   
                   <td><%=bill.getBid() %></td>
                   <td><%=bill.getBtype() %></td>
                   <td><%=bill.getBmoney() %></td>
                   <td><%=bill.getBdate() %></td>
                   <td><a href ="DeleteBillServlet?bid=<%=bill.getBid() %>">删除</a></td>
                   <td><a href="QueryBillServlet?bid=<%=bill.getBid() %>">查询</a></td>
               </tr>
               <%
           }
         }
         %>
      </table>
      </div>
      </div>
</body>
</html>

QueryPartBillServlet.java

package com.zzw.servlet;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;

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 QueryPartBillServlet 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");
        String date=request.getParameter("bdate");
        System.out.println(type+date);
        IUserService userservice = new UserServiceImpl();
        List<Bill> bills=userservice.QueryPart(type,date);
        //out对象的获取方法
        PrintWriter out = response.getWriter();
        request.setAttribute("bills", bills);
        request.getRequestDispatcher("screen.jsp").forward(request, response);
    }


    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // TODO Auto-generated method stub
        doGet(request, response);
    }

}

QueryTypeServlet.java

package com.zzw.servlet;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;

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 QueryTypeServlet 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");
        IUserService userservice = new UserServiceImpl();
        List<Bill> bills=userservice.QueryType(type);
        //out对象的获取方法
        PrintWriter out = response.getWriter();
        request.setAttribute("bills", bills);
        request.getRequestDispatcher("screentype.jsp").forward(request, response);
    }


    protected void doPost(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
        // TODO Auto-generated method stub
        doGet(request, response);
    }

}

QueryDateServlet.java

package com.zzw.servlet;

import java.io.IOException;
import java.io.PrintWriter;
import java.util.List;

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 QueryDateServlet 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 date=request.getParameter("bdate");
        IUserService userservice = new UserServiceImpl();
        List<Bill> bills=userservice.QueryDate(date);
        //out对象的获取方法
        PrintWriter out = response.getWriter();
        request.setAttribute("bills", bills);
        request.getRequestDispatcher("screendate.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 java.util.List;


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;
    }
    //根据账目编号进行删除
    public boolean DeleteBill(int  bid) {
        boolean flag=false;
        if(userdao.isExist(bid)) {
            userdao.DeleteBill(bid);
            flag=true;
        }else {
            System.out.println("此账目不存在");
        }
       return flag; 
    }
    //根据账目编号进行修改
    public boolean UpdateBill(int bid,Bill bill) {
        boolean flag=false;
        if(userdao.isExist(bid)) {
            userdao.UpdateBill(bid,bill);
            flag=true;
        }else {
            System.out.println("此账目不存在");
        }
       return flag; 
    }

    //根据账目编号查询账目
    public Bill Query(int bid) {
        return userdao.Query(bid);
    }
    //根据消费类型查询账单信息
        public List<Bill> QueryType(String btype){
            return userdao.QueryType(btype);
        }
        //根据日期查询账单信息
        public List<Bill> QueryDate(String bdate) {
            return userdao.QueryDate(bdate);
        }
  //根据消费类型和日期查询账单信息
        public List<Bill> QueryPart(String btype,String bdate) {
        return userdao.QueryPart(btype, bdate);
        }
    //查询全部账单信息
       public List<Bill> QueryAll() {
       return userdao.QueryAll();
       }
}

IUserService.java

package com.zzw.service;

import java.util.List;

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) ;
    //根据账目编号进行删除
         public boolean DeleteBill(int  bid);    
    //根据账目编号进行修改
         public boolean UpdateBill(int bid,Bill bill) ;
    //根据账目编号查询账目
         public Bill Query(int bid) ;
    //根据消费类型查询账单信息
        public List<Bill> QueryType(String btype);
    //根据日期查询账单信息
        public List<Bill> QueryDate(String bdate) ;
    //根据消费类型和日期查询账单信息
         public List<Bill> QueryPart(String btype,String bdate) ;
    //查询全部账单信息
         public List<Bill> QueryAll() ;
}

UserDaoImpl.java

package com.zzw.dao.Impl;

import java.sql.ResultSet;
import java.sql.SQLException;
import java.util.ArrayList;
import java.util.List;


import java.util.ArrayList;

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);
    }
  //根据账目编号删除账目信息
          public  boolean DeleteBill(int bid) {
          
               String sql="delete from bill where bid=?" ;
               Object [] params= {bid};
               return DBUtil.executeUpdate(sql, params);
          }
          //根据账目编号修改账目信息
          public  boolean UpdateBill(int bid,Bill bill) {
              
               String sql="update bill set btype =?,bmoney=?,bdate=?,bremark=? where bid =?" ;
               Object [] params= {bill.getBtype(),bill.getBmoney(),bill.getBdate(),bill.getBremark(),bid};
               return  DBUtil.executeUpdate(sql, params);
          }
          //查询账目是否存在
        public boolean isExist(int bid) {
           return Query(bid)==null? false:true;
       }
      //根据账目编号查询账目信息
          public   Bill Query(int bid) {
               Bill bill= null;
               ResultSet rs = null; 
               try {
                   String sql="select * from bill where bid =? " ;
                   Object [] params= {bid};
                   rs=DBUtil.executeQuery(sql, params);
                   if(rs.next()) {
                       int id=rs.getInt("bid");
                       String type=rs.getString("btype");
                       int money=rs.getInt("bmoney");
                       String date=rs.getString("bdate");
                       String remark=rs.getString("bremark");
                       bill=new Bill(id,type,money,date,remark);
                   }
               }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 bill;
          }    
      //根据消费类型查询账单信息
          public List<Bill> QueryType(String btype) {
              List<Bill> bills = new ArrayList<>();
               Bill bill= null;
               ResultSet rs=null;
               try {
                  
                      String sql="select * from bill where  btype=?" ;
                        Object [] params= {btype};
                        rs=DBUtil.executeQuery(sql, params);
                   
                   while(rs.next()) {
                       int id=rs.getInt("bid");
                      String type= rs.getString("btype");
                       int money=rs.getInt("bmoney");
                       String date= rs.getString("bdate");
                       String remark= rs.getString("bremark");
                       bill= new Bill(id,type,money,date,remark);
                       bills.add(bill);
                   }
               }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 bills;
          }
      //根据日期查询账单信息
          public List<Bill> QueryDate(String bdate) {
              List<Bill> bills = new ArrayList<>();
               Bill bill= null;
               ResultSet rs=null;
               try {
                      String sql="select * from bill where  bdate=?" ;
                        Object [] params= {bdate};
                        rs=DBUtil.executeQuery(sql, params);
                   while(rs.next()) {
                       int id=rs.getInt("bid");
                      String type= rs.getString("btype");
                       int money=rs.getInt("bmoney");
                       String date= rs.getString("bdate");
                       String remark= rs.getString("bremark");
                       bill= new Bill(id,type,money,date,remark);
                       bills.add(bill);
                   }
               }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 bills;
          }
      //根据消费类型和日期查询账单信息
          public List<Bill> QueryPart(String btype,String bdate) {
              List<Bill> bills = new ArrayList<>();
               Bill bill= null;
               ResultSet rs=null;
               try {
                   String sql="select * from bill where  btype=?and bdate=?" ;
                   Object [] params= {btype,bdate};
                  rs=DBUtil.executeQuery(sql, params);
                   while(rs.next()) {
                       int id=rs.getInt("bid");
                      String type= rs.getString("btype");
                       int money=rs.getInt("bmoney");
                       String date= rs.getString("bdate");
                       String remark= rs.getString("bremark");
                       bill= new Bill(id,type,money,date,remark);
                       bills.add(bill);
                   }
               }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 bills;
          }
  //查询全部账单信息
    public List<Bill> QueryAll() {
        List<Bill> bills = new ArrayList<>();
         Bill bill= null;
         ResultSet rs=null;
         try {
             String sql="select * from bill " ;
             rs=DBUtil.executeQuery(sql, null);
             while(rs.next()) {
                 int id=rs.getInt("bid");
                String type= rs.getString("btype");
                 int money=rs.getInt("bmoney");
                 String date= rs.getString("bdate");
                 String remark= rs.getString("bremark");
                 bill= new Bill(id,type,money,date,remark);
                 bills.add(bill);
             }
         }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 bills;
    }
}

IUserDao.java

package com.zzw.dao;

import java.util.List;

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);
    //根据账目编号删除账目信息
    public  boolean DeleteBill(int bid);
  //根据账目编号修改账目信息
    public  boolean UpdateBill(int bid,Bill bill) ;
    //查询账目是否存在
    public boolean isExist(int bid) ;
    //根据账目编号查询账目信息
    public   Bill Query(int bid);
    //根据消费类型查询账单信息
    public List<Bill> QueryType(String btype);
    //根据日期查询账单信息
    public List<Bill> QueryDate(String bdate) ;
    //根据消费类型和日期查询账单信息
    public List<Bill> QueryPart(String btype,String bdate) ;
    //查询全部账单信息
       public List<Bill> QueryAll() ;
       
}