记账本------7
2024-06-01 09:20:58
综合测试
<%@ page language="java" contentType="text/html; charset=utf-8"pageEncoding="utf-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>首页</title>
<style>.a{font-size: 26px;margin-top: 20px;}
</style>
</head>
<body>
<div align="center"><h1 style="color:bluegreen;">记帐本</h1><div class="a"><a href="add.jsp">账单记录</a></div><div class="a"><a href="BillServlet?method=dellist">账单删除</a></div><div class="a"><a href="BillServlet?method=modifylist">修改账单</a></div><div class="a"><a href="search.jsp">查询账单</a></div>
</div>
</body>
</html><%@ page language="java" contentType="text/html; charset=UTF-8"pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>记录账单</title>
<style>.a{margin-top: 20px;}.b{font-size: 20px;width: 160px;color: white;background-color: greenyellow;}
</style>
</head>
<body><%Object message = request.getAttribute("message");if(message!=null && !"".equals(message)){%><script type="text/javascript">alert("<%=request.getAttribute("message")%>");</script><%} %><div align="center"><h1 style="color: red;">记账</h1><form action="BillServlet?method=add" method="post" οnsubmit="return check()"><div class="a">类型<input type="text" id="type" name="type"/></div><div class="a">年<input type="text" id="year" name="year" /></div><div class="a">月<input type="text" id="month" name="month"/></div><div class="a">日<input type="text" id="day" name="day"/></div><div class="a">收入<input type="text" id="income" name="income"/></div><div class="a">支出<input type="text" id="pay" name="pay"/></div><div class="a"><button type="submit" class="b">保 存</button></div><div class="a"><a href="index.jsp" >返回</a></div></form></div></body>
</html><%@ page language="java" contentType="text/html; charset=UTF-8"pageEncoding="UTF-8"%>
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<style>.a{margin-top: 20px;}.b{font-size: 20px;width: 160px;color: white;background-color: greenyellow;}.tb, td {border: 1px solid black;font-size: 22px;}
</style>
</head>
<body><%Object message = request.getAttribute("message");if(message!=null && !"".equals(message)){%><script type="text/javascript">alert("<%=request.getAttribute("message")%>");</script><%} %><div align="center"><h1 style="color: red;">账单信息列表</h1><a href="index.jsp">返回主页</a><table class="tb"><tr><td>id</td><td>账单类型</td><td>年</td><td>月</td><td>日</td><td>收入</td><td>支出</td><td align="center" colspan="2">操作</td></tr><c:forEach items="${bills}" var="xm"><tr><td>${xm.id}</td><td>${xm.type}</td><td>${xm.year}</td><td>${xm.month}</td><td>${xm.day}</td><td>${xm.income}</td><td>${xm.pay}</td><td><a href="BillServlet?method=getbillbyid&id=${xm.id}">删除</a></td></tr></c:forEach></table></div>
</body>
</html><%@ page language="java" contentType="text/html; charset=UTF-8"pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<style>.a{margin-top: 20px;}.b{font-size: 20px;width: 160px;color: white;background-color: greenyellow;}.tb, td {border: 1px solid black;font-size: 22px;}
</style>
</head>
<body>
<%Object message = request.getAttribute("message");if(message!=null && !"".equals(message)){%><script type="text/javascript">alert("<%=request.getAttribute("message")%>");</script><%} %><div align="center"><h1 style="color: red;">账单信息删除</h1><a href="index.jsp">返回主页</a><table class="tb"><tr><td>账单类型</td><td>${bill.type}</td></tr><tr><td>年</td><td>${bill.year}</td></tr><tr><td>月</td><td>${bill.month}</td></tr><tr><td>日</td><td>${bill.day}</td></tr><tr><td>收入</td><td>${bill.income}</td></tr><tr><td>支出</td><td>${bill.pay}</td></tr></table><div class="a"><a οnclick="return check()" href="BillServlet?method=delete&id=${bill.id}">删 除</a></div></div><script type="text/javascript">function check() {if (confirm("真的要删除吗？")){return true;}else{return false;}}</script>
</body>
</html><%@ page language="java" contentType="text/html; charset=UTF-8"pageEncoding="UTF-8"%>
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<style>.a{margin-top: 20px;}.b{font-size: 20px;width: 160px;color: white;background-color: greenyellow;}.tb, td {border: 1px solid black;font-size: 22px;}
</style>
</head>
<body><%Object message = request.getAttribute("message");if(message!=null && !"".equals(message)){%><script type="text/javascript">alert("<%=request.getAttribute("message")%>");</script><%} %><div align="center"><h1 style="color: red;">账单信息列表</h1><a href="index.jsp">返回主页</a><table class="tb"><tr><td>id</td><td>账单类型</td><td>年</td><td>月</td><td>日</td><td>收入</td><td>支出</td><td align="center" colspan="2">操作</td></tr><c:forEach items="${bills}" var="item"><tr><td>${item.id}</td><td>${item.type}</td><td>${item.year}</td><td>${item.month}</td><td>${item.day}</td><td>${item.income}</td><td>${item.pay}</td><td><a href="BillServlet?method=getbillbyid2&id=${item.id}">修改</a></td></tr></c:forEach></table></div>
</body>
</html><%@ page language="java" contentType="text/html; charset=UTF-8"pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<style>.a{margin-top: 20px;}.b{font-size: 20px;width: 160px;color: white;background-color: greenyellow;}
</style>
</head>
<body><%Object message = request.getAttribute("message");if(message!=null && !"".equals(message)){%><script type="text/javascript">alert("<%=request.getAttribute("message")%>");</script><%} %><div align="center"><h1 style="color: cyan;">记账信息修改</h1><a href="index.jsp">返回主页</a><form action="BillServlet?method=modify" method="post" οnsubmit="return check()"><div class="a">账单类型<input type="text" id="type" name="type" value="${bill.type}"/></div><div class="a">年<input type="text" id="year" name="year" value="${bill.year}"/></div><div class="a">月<input type="text" id="month" name="month" value="${bill.month}"/></div><div class="a">日<input type="text" id="day" name="day" value="${bill.day}"/></div><div class="a">收入<input type="text" id="income" name="income" value="${bill.income}"/></div><div class="a">支出<input type="text" id="pay" name="pay" value="${bill.pay}"/></div><input type="hidden" id="id" name="id" value="${bill.id}"/><div class="a"><button type="submit" class="b">修 改</button></div></form></div></body>
</html><%@ page language="java" contentType="text/html; charset=UTF-8"pageEncoding="UTF-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<style>.a{margin-top: 20px;}.b{font-size: 20px;width: 160px;color: white;background-color: greenyellow;}
</style>
</head>
<body><div align="center"><h1 style="color: cyan;">账单信息查询</h1><a href="index.jsp">返回主页</a><form action="BillServlet?method=search" method="post" οnsubmit="return check()"><div class="a">账单类型<input type="text" id="type" name="type"/></div><div class="a">年<input type="text" id="year" name="year" /></div><div class="a">月<input type="text" id="month" name="month" /></div><div class="a">日<input type="text" id="day" name="day" /></div><div class="a">收入<input type="text" id="income" name="income" /></div><div class="a">支出<input type="text" id="pay" name="pay" /></div><div class="a"><button type="submit" class="b">查 询</button></div></form></div>
</body>
</html><%@ page language="java" contentType="text/html; charset=UTF-8"pageEncoding="UTF-8"%>
<%@taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<style>.a{margin-top: 20px;}.b{font-size: 20px;width: 160px;color: white;background-color: greenyellow;}.tb, td {border: 1px solid black;font-size: 22px;}
</style>
</head>
<body><div align="center"><h1 style="color: red;">账单信息列表</h1><a href="index.jsp">返回主页</a><table class="tb"><tr><td>id</td><td>粘单类型</td><td>年</td><td>月</td><td>日</td><td>收入</td><td>支出</td></tr><!-- forEach遍历出adminBeans --><c:forEach items="${bills}" var="item" varStatus="status"><tr><td>${item.id}</td><td><a>${item.type}</a></td><td>${item.year}</td><td>${item.month}</td><td>${item.day}</td><td>${item.income}</td><td>${item.pay}</td></tr></c:forEach></table></div>
</body>
</html>连接数据库
//信1705-2 夏铭 20173690 2019.1.10
package com.bill.util;import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;public class DBUtil {public static String db_url = "jdbc:mysql://localhost:3306/test?useSSL=false";public static String db_user = "root";public static String db_pass = "mm123456";public static Connection getConn () {Connection conn = null;try {Class.forName("com.mysql.jdbc.Driver");//鍔犺浇椹卞姩conn = DriverManager.getConnection(db_url, db_user, db_pass);} catch (Exception e) {e.printStackTrace();}return conn;}public static void close (Statement state, Connection conn) {if (state != null) {try {state.close();} catch (SQLException e) {e.printStackTrace();}}if (conn != null) {try {conn.close();} catch (SQLException e) {e.printStackTrace();}}}public static void close (ResultSet rs, Statement state, Connection conn) {if (rs != null) {try {rs.close();} catch (SQLException e) {e.printStackTrace();}}if (state != null) {try {state.close();} catch (SQLException e) {e.printStackTrace();}}if (conn != null) {try {conn.close();} catch (SQLException e) {e.printStackTrace();}}}}been类
package com.bill.been;public class Bill {private int id;private String type;private String year;private String month;private String day;private String income;private String pay;public int getId() {return id;}public void setId(int id) {this.id = id;}public String getType() {return type;}public void setType(String type) {this.type = type;}public String getYear() {return year;}public void setYear(String year) {this.year = year;}public String getMonth() {return month;}public void setMonth(String month) {this.month = month;}public String getDay() {return day;}public void setDay(String day) {this.day = day;}public String getIncome() {return income;}public void setIncome(String income) {this.income = income;}public String getPay() {return pay;}public void setPay(String pay) {this.pay = pay;}public Bill(int id,String type,String year,String month,String day,String income,String pay){this.id=id;this.type=type;this.year=year;this.month=month;this.day=day;this.income=income;this.pay=pay;}public Bill(String type,String year,String month,String day,String income,String pay){this.type=type;this.year=year;this.month=month;this.day=day;this.income=income;this.pay=pay;}
}dao类
package com.bill.dao;
import java.sql.Connection;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.util.ArrayList;
import java.util.List;import com.bill.util.DBUtil;
import com.bill.been.Bill;
@SuppressWarnings("unused")
public class BillDao {
//-----------------------------------------------------------------------------------------------------------------------------public boolean add(Bill bill) {String sql = "insert into bill(type,year,month,day,income,pay) values('" + bill.getType() + "','" + bill.getYear() + "','"+bill.getMonth()+"','"+bill.getDay()+"','"+bill.getIncome()+"','"+bill.getPay()+"')";Connection conn = DBUtil.getConn();//调用方法连接数据库Statement state = null;boolean f = false;int a = 0 ;try { //监视大括号内的代码state = conn.createStatement();a = state.executeUpdate(sql);} catch (Exception e) { //捕获错误
e.printStackTrace();} finally {//关闭z 连接
DBUtil.close(state, conn);}if (a > 0) {f = true;}return f;}//----------------------------------------------------------------------------------------------------------------------------
public Bill getBillById(int id) {String sql = "select * from bill where id ='" + id + "'";Connection conn = DBUtil.getConn();Statement state = null;ResultSet rs = null;Bill bill = null;try {state = conn.createStatement();rs = state.executeQuery(sql);while (rs.next()) {String type = rs.getString("type");String year = rs.getString("year");String month = rs.getString("month");String day = rs.getString("day");String income = rs.getString("income");String pay = rs.getString("pay");bill = new Bill(id, type, year, month,day,income,pay);}} catch (Exception e) {e.printStackTrace();} finally {DBUtil.close(rs, state, conn);}return bill;}public List<Bill> dellist() {String sql = "select * from bill";List<Bill> dellist = new ArrayList<>();Connection conn = DBUtil.getConn();Statement state = null;ResultSet rs = null;try {state = conn.createStatement();rs = state.executeQuery(sql);Bill bean = null;while (rs.next()) {int id = rs.getInt("id");String type2 = rs.getString("type");String year2 = rs.getString("year");String month2 = rs.getString("month");String day2 = rs.getString("day");String income2=rs.getString("income");String pay2=rs.getString("pay");bean = new Bill(id, type2, year2, month2,day2,income2,pay2);dellist.add(bean);}} catch (SQLException e) {e.printStackTrace();} finally {DBUtil.close(rs, state, conn);}return dellist;}public boolean delete (int id) {boolean f = false;String sql = "delete from bill where id='" + id + "'";Connection conn = DBUtil.getConn();Statement state = null;int a = 0;try {state = conn.createStatement();a = state.executeUpdate(sql);} catch (SQLException e) {e.printStackTrace();} finally {DBUtil.close(state, conn);}if (a > 0) {f = true;}return f;}
//--------------------------------------------------------------------------------------------------------------public List<Bill> modifylist() {String sql = "select * from bill";List<Bill> modifylist = new ArrayList<>();Connection conn = DBUtil.getConn();Statement state = null;ResultSet rs = null;try {state = conn.createStatement();rs = state.executeQuery(sql);Bill bean = null;while (rs.next()) {int id = rs.getInt("id");String type2 = rs.getString("type");String year2 = rs.getString("year");String month2 = rs.getString("month");String day2 = rs.getString("day");String income2=rs.getString("income");String pay2=rs.getString("pay");bean = new Bill(id, type2, year2, month2,day2,income2,pay2);modifylist.add(bean);}} catch (SQLException e) {e.printStackTrace();} finally {DBUtil.close(rs, state, conn);}return modifylist;}public boolean modify(Bill bill) {String sql = "update bill set type='" + bill.getType() + "', year='" + bill.getYear() + "',month='" + bill.getMonth()+ "',day='"+bill.getDay()+"',income='"+bill.getIncome()+"',pay='"+bill.getPay()+"'where id='" + bill.getId() + "'";Connection conn = DBUtil.getConn();Statement state = null;boolean f = false;int a = 0;try {state = conn.createStatement();a = state.executeUpdate(sql);} catch (SQLException e) {e.printStackTrace();} finally {DBUtil.close(state, conn);}if (a > 0) {f = true;}return f;}
//------------------------------------------------------------------------------------------------------------------------------public List<Bill> search(String type,String year,String month,String day,String income,String pay) {String sql = "select * from bill where ";if (type != "") {sql += "type like '%" + type + "%'";}if (year != "") {sql += "year like '%" + year + "%'";}if (month != "") {sql += "month like '%" + month + "%'";}if (day != "") {sql += "day like '%" + day + "%'";}if (income != "") {sql += "income like '%" + income + "%'";}if (pay != "") {sql += "pay like '%" + pay + "%'";}List<Bill> list = new ArrayList<>();Connection conn = DBUtil.getConn();Statement state = null;ResultSet rs = null;try {state = conn.createStatement();rs = state.executeQuery(sql);Bill bean = null;while (rs.next()) {int id = rs.getInt("id");String type2 = rs.getString("type");String year2 = rs.getString("year");String month2 = rs.getString("month");String day2 = rs.getString("day");String income2 = rs.getString("income");String pay2 = rs.getString("pay");bean = new Bill(id, type2, year2, month2,day2,income2,pay2);list.add(bean);}} catch (SQLException e) {e.printStackTrace();} finally {DBUtil.close(rs, state, conn);}return list;}}servlet类
package com.bill.servlet;
import java.io.IOException;
import java.util.List;import javax.servlet.ServletException;
import javax.servlet.annotation.WebServlet;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;import com.bill.dao.BillDao;
import com.bill.been.Bill;
@WebServlet("/BillServlet")
public class BillServlet extends HttpServlet{private static final long serialVersionUID = 1L;public BillServlet() {super();}BillDao dao=new BillDao();protected void service(HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {req.setCharacterEncoding("utf-8");String method = req.getParameter("method");if ("add".equals(method)) {add(req, resp);}else if ("getbillbyid".equals(method)) {getBillById(req, resp);}else if ("dellist".equals(method)) {dellist(req,resp);}else if ("delete".equals(method)) {delete(req,resp);}else if ("getbillbyid2".equals(method)) {getBillById2(req, resp);}else if ("modifylist".equals(method)) {modifylist(req,resp);}else if ("modify".equals(method)) {modify(req,resp);}else if ("search".equals(method)) {search(req,resp);}}
//------------------------------------------------------------------------------------------------------private void add(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException {// TODO Auto-generated method stubString type = req.getParameter("type");String year = req.getParameter("year");String month = req.getParameter("month");String day = req.getParameter("day");String income = req.getParameter("income");String pay = req.getParameter("pay");Bill bill=new Bill(type,year,month,day,income,pay);if(dao.add(bill)) {req.setAttribute("message", "保存成功!");req.getRequestDispatcher("add.jsp").forward(req, resp);}else {req.setAttribute("message", "保存失败!");req.getRequestDispatcher("add.jsp").forward(req, resp);}}//------------------------------------------------------------------------------------------------------
private void getBillById(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException{req.setCharacterEncoding("utf-8");int id = Integer.parseInt(req.getParameter("id"));Bill bill = dao.getBillById(id);req.setAttribute("bill", bill);req.getRequestDispatcher("delete.jsp").forward(req,resp);}private void dellist(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException {req.setCharacterEncoding("utf-8");List<Bill> bills = dao.dellist();req.setAttribute("bills", bills);req.getRequestDispatcher("dellist.jsp").forward(req,resp);}private void delete(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException{req.setCharacterEncoding("utf-8");int id = Integer.parseInt(req.getParameter("id"));dao.delete(id);req.setAttribute("message", "删除成功");req.getRequestDispatcher("index.jsp").forward(req,resp);}
//---------------------------------------------------------------------------------------------------------------------------------private void getBillById2(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException{req.setCharacterEncoding("utf-8");int id = Integer.parseInt(req.getParameter("id"));Bill bill = dao.getBillById(id);req.setAttribute("bill", bill);req.getRequestDispatcher("modify.jsp").forward(req,resp);}private void modifylist(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException{req.setCharacterEncoding("utf-8");List<Bill> bills = dao.modifylist();req.setAttribute("bills",bills);req.getRequestDispatcher("modifylist.jsp").forward(req,resp);}private void modify(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException{req.setCharacterEncoding("utf-8");int id = Integer.parseInt(req.getParameter("id"));String type = req.getParameter("type");String year = req.getParameter("year");String month = req.getParameter("month");String day = req.getParameter("day");String income = req.getParameter("income");String pay = req.getParameter("pay");Bill bill = new Bill(id, type, year, month,day,income,pay);dao.modify(bill);req.setAttribute("message", "修改成功");req.getRequestDispatcher("BillServlet?method=modifylist").forward(req,resp);}//---------------------------------------------------------------------------------------------------------------------------------
private void search(HttpServletRequest req, HttpServletResponse resp) throws IOException, ServletException{req.setCharacterEncoding("utf-8");String type = req.getParameter("type");String year = req.getParameter("year");String month = req.getParameter("month");String day = req.getParameter("day");String income = req.getParameter("income");String pay = req.getParameter("pay");List<Bill> bills = dao.search(type,year,month,day,income,pay);req.setAttribute("bills", bills);req.getRequestDispatcher("searchlist.jsp").forward(req,resp);}
}转载于:https://www.cnblogs.com/birdmmxx/p/10425516.html
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