出租房屋信息管理（JSP作業）

一.語言和環境

實現語言:JAVA語言.
環境要求: Eclipse或MyEclipse,MySQL.
驅動包:提供對應MySQL驅動jar包.

二．具體要求及推薦實現步驟

1.按以上數據庫要求建庫、建表，並添加測試數據不少於5條。

2. 搭建系統框架

（1）創建 JavaWeb 項目，導入數據庫驅動 jar 包，創建對應包存放相關源文件
（2）創建實體類用於出租房屋信息的數據
（3）創建數據訪問層，並編寫數據庫連接和數據訪問層代碼
（4）創建業務邏輯層，並編寫業務邏輯層代碼
（5）創建對應 Servlet 處理查詢、修改和刪除請求處理
（6）正確添加各層之間的調用依賴關係

3. 創建後臺管理頁面

（1）按照後臺管理頁面效果圖，使用 JSP 創建頁面
（2）頁面中出租房屋信息數據均來源於數據庫，初次加載顯示所有出租房屋信息（注意：要求界面使用 JSTL 進行數據展示）

代碼如下所示

數據庫

包名

House.java(實體類)

package com.swjd.bean;

public class House {
	private int letId;
	private String letName;
	private String letType;
	private int letPrice;
	private String letPhone;
	private String letAddress;

	public House() {
		super();
		// TODO Auto-generated constructor stub
	}
	
	public House(String letName, String letType, int letPrice, String letPhone, String letAddress) {
		super();
		this.letName = letName;
		this.letType = letType;
		this.letPrice = letPrice;
		this.letPhone = letPhone;
		this.letAddress = letAddress;
	}

	public House(int letId, String letName, String letType, int letPrice, String letPhone, String letAddress) {
		super();
		this.letId = letId;
		this.letName = letName;
		this.letType = letType;
		this.letPrice = letPrice;
		this.letPhone = letPhone;
		this.letAddress = letAddress;
	}

	public int getLetId() {
		return letId;
	}

	public void setLetId(int letId) {
		this.letId = letId;
	}

	public String getLetName() {
		return letName;
	}

	public void setLetName(String letName) {
		this.letName = letName;
	}

	public String getLetType() {
		return letType;
	}

	public void setLetType(String letType) {
		this.letType = letType;
	}

	public int getLetPrice() {
		return letPrice;
	}

	public void setLetPrice(int letPrice) {
		this.letPrice = letPrice;
	}

	public String getLetPhone() {
		return letPhone;
	}

	public void setLetPhone(String letPhone) {
		this.letPhone = letPhone;
	}

	public String getLetAddress() {
		return letAddress;
	}

	public void setLetAddress(String letAddress) {
		this.letAddress = letAddress;
	}

	@Override
	public String toString() {
		return "House [letId=" + letId + ", letName=" + letName + ", letType=" + letType + ", letPrice=" + letPrice
				+ ", letPhone=" + letPhone + ", letAddress=" + letAddress + "]\n";
	}

}

BaseDao.java（連接MySQL數據庫）

package com.swjd.util;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;

public class BaseDao {
	static {
		try {
			Class.forName("com.mysql.jdbc.Driver");
		} catch (ClassNotFoundException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}
	
	public static Connection getConn() {
		Connection conn = null;
		try {
			conn = DriverManager.getConnection
			("jdbc:mysql://localhost:3306/communitydb?CharacterEncoding=utf-8&useUnicode=true","root","123456");
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		return conn;
	}
	
	public static void close(ResultSet rs,PreparedStatement ps,Connection conn) {
		try {
			if (rs!=null) {
				rs.close();
			}
			if (ps!=null) {
				ps.close();
			}
			if (conn!=null) {
				conn.close();
			}
		} catch (Exception e) {
			// TODO: handle exception
		}
	}
	public static void main(String[] args) {
		System.out.println(getConn());
	}
}

HouseDao.java(接口)

package com.swjd.dao;

import java.util.List;

import com.swjd.bean.House;

public interface HouseDao {

	public int add(House house);
	
	public int delete(int id);
	
	public int update(House house,int id);

	public List<House> selectAll();
	
	public List<House> selectMoHuByName(String name,String huXing);

}

HouseDaoImpl.java

package com.swjd.dao;

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

import com.swjd.bean.House;
import com.swjd.util.BaseDao;

public class HouseDaoImpl implements HouseDao{

	@Override
	public int add(House house) {
		Connection conn = BaseDao.getConn();
		PreparedStatement ps = null;
		int num = 0;
		String sql ="insert into house values(null,?,?,?,?,?)";
		try {
			ps=conn.prepareStatement(sql);
			ps.setString(1, house.getLetName());
			ps.setString(2, house.getLetType());
			ps.setInt(3, house.getLetPrice());
			ps.setString(4, house.getLetPhone());
			ps.setString(5, house.getLetAddress());
			num = ps.executeUpdate();
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally {
			BaseDao.close(null, ps, conn);
		}
		return num;
	}

	@Override
	public int delete(int id) {
		Connection conn = BaseDao.getConn();
		PreparedStatement ps = null;
		int num = 0;
		String sql ="delete from house where let_id=?";
		try {
			ps=conn.prepareStatement(sql);
			ps.setInt(1,id);
			num = ps.executeUpdate();
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally {
			BaseDao.close(null, ps, conn);
		}
		return num;
	}

	@Override
	public int update(House house, int id) {
		Connection conn = BaseDao.getConn();
		PreparedStatement ps = null;
		int num = 0;
		String sql ="update house set let_name=?,let_type=?,let_price=?,let_phone=?,let_address=? where let_id=?";
		try {
			ps=conn.prepareStatement(sql);
			ps.setString(1, house.getLetName());
			ps.setString(2, house.getLetType());
			ps.setInt(3, house.getLetPrice());
			ps.setString(4, house.getLetPhone());
			ps.setString(5, house.getLetAddress());
			ps.setInt(6,id);
			num = ps.executeUpdate();
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally {
			BaseDao.close(null, ps, conn);
		}
		return num;
	}

	@Override
	public List<House> selectAll() {
		List<House> list = new ArrayList<>();
		Connection conn = BaseDao.getConn();
		PreparedStatement ps = null;
		ResultSet rs = null;
		String sql = "select * from house";
		try {
			ps = conn.prepareStatement(sql);
			rs = ps.executeQuery();
			while (rs.next()) {
				House house = new House();
				house.setLetId(rs.getInt("let_id"));
				house.setLetName(rs.getString("let_name"));
				house.setLetType(rs.getString("let_type"));
				house.setLetPrice(rs.getInt("let_price"));
				house.setLetPhone(rs.getString("let_phone"));
				house.setLetAddress(rs.getString("let_address"));
				list.add(house);
			}
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally {
			BaseDao.close(rs, ps, conn);
		}
		return list;
	}

	@Override
	public List<House> selectMoHuByName(String name,String huXing) {
		List<House> list = new ArrayList<House>();
		Connection conn = BaseDao.getConn();
		PreparedStatement ps = null;
		ResultSet rs = null;
		String sql = "select * from house where let_name like '%"+name+"%' and let_type like '%"+huXing+"%'";
		try {
			ps = conn.prepareStatement(sql);
			rs = ps.executeQuery();
			while (rs.next()) {
				House house = new House();
				house.setLetId(rs.getInt("let_id"));
				house.setLetName(rs.getString("let_name"));
				house.setLetType(rs.getString("let_type"));
				house.setLetPrice(rs.getInt("let_price"));
				house.setLetPhone(rs.getString("let_phone"));
				house.setLetAddress(rs.getString("let_address"));
				list.add(house);
			}
		} catch (SQLException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}finally {
			BaseDao.close(rs, ps, conn);
		}
		return list;
	}


	public static void main(String[] args) {
	HouseDaoImpl houseDaoImpl = new HouseDaoImpl();

		System.out.println(houseDaoImpl.selectAll());
	}
}

HouseService.java（接口）

package com.swjd.service;

import java.util.List;

import com.swjd.bean.House;

public interface HouseService {
	
	public int add(House house);

	public int delete(int id);

	public int update(House house, int id);

	public List<House> selectAll();

	public List<House> selectMoHuByName(String name,String huXing);
}

HouseServiceImpl.java

package com.swjd.service;

import java.util.List;

import com.swjd.bean.House;
import com.swjd.dao.HouseDaoImpl;

public class HouseServiceImpl implements HouseService{
	HouseDaoImpl houseDaoImpl = new HouseDaoImpl();

	@Override
	public int add(House house) {
		int jg = houseDaoImpl.add(house);
		return jg;
	}

	@Override
	public int delete(int id) {
		int jg = houseDaoImpl.delete(id);
		return jg;
	}

	@Override
	public int update(House house, int id) {
		int jg = houseDaoImpl.update(house, id);
		return jg;
	}

	@Override
	public List<House> selectAll() {
		List<House> list = houseDaoImpl.selectAll();
		return list;
	}

	@Override
	public List<House> selectMoHuByName(String name,String huXing) {
		List<House> list = houseDaoImpl.selectMoHuByName(name,huXing);
		return list;
	}

}

Index.jsp(首頁)

<%@ 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>
</head>
<body>
	<div align="center">
	<form action="IndexServlet2" method="post">
		小區名稱：<input name="xiaoQuName" value="${name}">
		戶型：<select name="huXing"">
				<option value="一室一廳">一室一廳</option>
				<option value="一室一衛">一室一衛</option>
				<option value="三室兩衛">三室兩衛</option>
				<option value="兩室兩衛">兩室兩廳</option>
				<option value="三室一廳">三室一廳</option>
				<option value="">所有</option>
			</select>
		
			<input type="submit" value="查詢">
	</form>
	</div>
	
	<table align="center" border="1">
		<tr bgcolor="white">
			<th>ID</th>
			<th>小區名城</th>
			<th>小區戶型</th>
			<th>租金(元/月)</th>
			<th>聯繫電話</th>
			<th>小區地址</th>
			<th>操作</th>
		</tr>
		<c:forEach var="xiaoQu" items="${list}">
			<tr>
				<td align="center">${xiaoQu.letId }</td>
				<td align="center">${xiaoQu.letName }</td>
				<td align="center">${xiaoQu.letType }</td>
				<td align="center">${xiaoQu.letPrice }</td>
				<td align="center">${xiaoQu.letPhone }</td>
				<td align="center">${xiaoQu.letAddress }</td>
				<td align="center"><a href="update.jsp?id=${xiaoQu.letId}">修改</a> <a href="DeleteServlet?id1=${xiaoQu.letId}">刪除</a></td>
			</tr>
		</c:forEach>
	</table>
	
</body>
</html>

update.jsp

<%@ 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>
<script>
	function reset1(){
		var a = document.getElementByName('xiaoQu')[0];
		var b = document.getElementByName('huXing')[0];
		var c = document.getElementByName('zuJin')[0];
		var d = document.getElementByName('dianHua')[0];
		var e = document.getElementByName('diZhi')[0];
		
		a.value="";
		b.value="";
		c.value="";
		d.value="";
		e.value="";
		
	}
</script>
</head>
<body>
<%
	int id=Integer.parseInt(request.getParameter("id"));
%>
	<h1 align="center">修改出租房屋信息</h1>
	<form action="UpdateServlet" method="post">
		<table>
			<tr>
				<td>小區名稱：</td>
				<td><input name="xiaoQu" required></td>
			</tr>
			<tr>
				<td>戶型:</td>
				<td><input name="huXing" required></td>
			</tr>
			<tr>
				<td>租金：</td>
				<td><input name="zuJin" required></td>
			</tr>
			<tr>
				<td>聯繫電話：</td>
				<td><input name="dianHua" required></td>
			</tr>
			<tr>
				<td>小區地址：</td>
				<td><input name="diZhi" required></td>
			</tr>
			<tr>
				<td><input type="submit" value="修改"></td>
				<td><input type="reset" value="重置" onclick="reset1()"></td>
			</tr>
		</table>
		<input name="ids" value="<%=id%>" style="display:none;">
	</form>
</body>
</html>

IndexServlet.java

package com.swjd.controller;

import java.io.IOException;
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.swjd.bean.House;
import com.swjd.service.HouseServiceImpl;

/**
 * Servlet implementation class IndexServlet
 */
public class IndexServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public IndexServlet() {
        super();
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		request.setCharacterEncoding("utf-8");
		response.setContentType("text/html;charset=utf-8");
		
		HouseServiceImpl houseServiceImpl = new HouseServiceImpl();
		
		List<House> list = houseServiceImpl.selectAll();
		request.setAttribute("list",list);
		request.getRequestDispatcher("Index.jsp").forward(request, response);
	}

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

}

IndexServlet2.java

package com.swjd.controller;

import java.io.IOException;
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.swjd.bean.House;
import com.swjd.service.HouseServiceImpl;

/**
 * Servlet implementation class IndexServlet2
 */
public class IndexServlet2 extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public IndexServlet2() {
        super();
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		request.setCharacterEncoding("utf-8");
		response.setContentType("text/html;charset=utf-8");
		String name = request.getParameter("xiaoQuName");
		String huXing= request.getParameter("huXing");
		HouseServiceImpl houseServiceImpl = new HouseServiceImpl();
		List<House> list = houseServiceImpl.selectMoHuByName(name, huXing);
		request.setAttribute("list", list);
		request.setAttribute("name", name);
		request.setAttribute("huXing", huXing);
		request.getRequestDispatcher("Index.jsp").forward(request, response);
	}

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

}

UpdateServlet.java

package com.swjd.controller;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.swjd.bean.House;
import com.swjd.service.HouseServiceImpl;

/**
 * Servlet implementation class UpdateServlet
 */
public class UpdateServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public UpdateServlet() {
        super();
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		request.setCharacterEncoding("utf-8");
		response.setContentType("text/html;charset=utf-8");
		String xiaoQu = request.getParameter("xiaoQu");
		String huXing = request.getParameter("huXing");
		int price = Integer.parseInt(request.getParameter("zuJin"));
		String phone = request.getParameter("dianHua");
		String dizhi = request.getParameter("diZhi");
		PrintWriter out = response.getWriter();
		int id = Integer.parseInt(request.getParameter("ids"));
		HouseServiceImpl houseServiceImpl = new HouseServiceImpl();
		House house = new House(xiaoQu,huXing,price,phone,dizhi);
		int jg = houseServiceImpl.update(house, id);
		if (jg>0) {
			out.print("<script>alert('修改成功');location.href='IndexServlet';</script>");
		}else {
			out.print("<script>alert('修改失敗');location.href='IndexServlet';</script>");
		}
	}

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

}

DeleteServlet.java

package com.swjd.controller;

import java.io.IOException;
import java.io.PrintWriter;

import javax.servlet.ServletException;
import javax.servlet.http.HttpServlet;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;

import com.swjd.service.HouseServiceImpl;

/**
 * Servlet implementation class DeleteServlet
 */
public class DeleteServlet extends HttpServlet {
	private static final long serialVersionUID = 1L;
       
    /**
     * @see HttpServlet#HttpServlet()
     */
    public DeleteServlet() {
        super();
        // TODO Auto-generated constructor stub
    }

	/**
	 * @see HttpServlet#doGet(HttpServletRequest request, HttpServletResponse response)
	 */
	protected void doGet(HttpServletRequest request, HttpServletResponse response) throws ServletException, IOException {
		// TODO Auto-generated method stub
		request.setCharacterEncoding("utf-8");
		response.setContentType("text/html;charset=utf-8");
		int id = Integer.parseInt(request.getParameter("id1"));
		HouseServiceImpl houseServiceImpl = new HouseServiceImpl();
		PrintWriter out = response.getWriter();
		int jg = houseServiceImpl.delete(id);
		if (jg>0) {
			out.print("<script>alert('刪除成功');location.href='IndexServlet';</script>");
		}else {
			out.print("<script>alert('刪除失敗');location.href='IndexServlet';</script>");
		}
	}

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

}

需要用到的jar包

運行結果

可以實現修改，刪除和條件查詢

寫在最後

隨風奔跑自由是方向
追逐雷和閃電的力量
把浩瀚的海洋裝進我胸膛
即使在小的帆也能遠航
2020年註定不平凡
一起加油

出租房屋信息管理（JSP作業）

一.語言和環境

二．具體要求及推薦實現步驟

1.按以上數據庫要求建庫、建表，並添加測試數據不少於5條。

2. 搭建系統框架

3. 創建後臺管理頁面

代碼如下所示

數據庫

包名

House.java(實體類)

BaseDao.java（連接MySQL數據庫）

HouseDao.java(接口)

HouseDaoImpl.java

HouseService.java（接口）

HouseServiceImpl.java

Index.jsp(首頁)

update.jsp

IndexServlet.java

IndexServlet2.java

UpdateServlet.java

DeleteServlet.java

需要用到的jar包

運行結果

寫在最後

工作中用到的腳本合集

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24-5-18 X

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