原文链接:JavaWeb数据库学生宿舍图书管理系统+地图

  • 登陆之后现实主页面,账号密码储存在数据库中。
  • 实现对数据库的增删改查

java 9.0.4 + mysql 8.0.19 + Navicat 8 lite + eclipse 2019-12 + mysql-connector-java-8.0.19.jar

环境搭建:

安装jdk mysql Navicat

打开eclipse / window / Preferences / Server / Runtime Environments / Add

选择Apache版本9 → next 路径,jre 选择。

最后应用 Apply and Close


新建项目之后,连接数据库

直接将 mysql-connector-java-8.0.19.jar 粘贴进 WebContent 下 WEB-INF lib 下

项目开始:


数据库设计



代码:

text1.jsp

<%@ page language="java" contentType="text/html; charset=utf-8"pageEncoding="utf-8"%>
<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8">
<title>主页</title>
<link rel="stylesheet" href="css/stduent.css" type="text/css">
</head>
<body><div class="header"><h1>花店会员管理系统</h1></div><div class="topnav"><a href="text1.jsp">主页</a><a href="text2.jsp">插入会员信息</a><a href="text4.jsp">删除会员信息</a><a href="text6.jsp">修改会员信息</a><a href="text8.jsp">查询会员信息</a><a href="map.html">花店地址</a></div>
</body>
</html>

text2.jsp

<%@page import="java.sql.DriverManager"%>
<%@page import="java.sql.ResultSet"%>
<%@page import="java.sql.Connection"%>
<%@page import="java.sql.Statement"%>
<%@ 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>
<title>主页</title>
<link rel="stylesheet" href="css/stduent.css" type="text/css">
</head>
<body><div class="header"><h1>花店会员管理系统</h1></div><div class="topnav"><a href="text1.jsp">主页</a><a href="text2.jsp">插入会员信息</a><a href="text4.jsp">删除会员信息</a><a href="text6.jsp">修改会员信息</a><a href="text8.jsp">查询会员信息</a><a href="map.html">花店地址</a></div><div><p>添加会员到数据库</p><form action="text3.jsp">新的会员编号:<input type="text" name="id"><br>新的会员姓名:<input type="text" name="name"><br>充值金额:<input type="text" name="math"><br>购买次数:<input type="text" name="english"><br>积分:<input type="text" name="physics"><br><input type="submit" name="submit" value="提交新的"></form><p>提交想的数据之前的数据表内容</p><%Connection conn=null;Statement stm=null;ResultSet rst=null;try{Class.forName("com.mysql.cj.jdbc.Driver");conn=DriverManager.getConnection("jdbc:mysql://localhost:3306/student?useSSL=true&serverTimezone=GMT","root","root");stm=conn.createStatement();//String sql="select * from score";rst=stm.executeQuery("select * from score");out.print("<table border='1'>");out.print("<tr>");out.print("<th>编号</th>");out.print("<th>姓名</th>");out.print("<th>充值金额</th>");out.print("<th>购买次数</th>");out.print("<th>积分</th>");out.print("</tr>");while(rst.next()){out.print("<tr>");out.print("<th>"+rst.getString("id")+"</th>");out.print("<th>"+rst.getString(2)+"</th>");out.print("<th>"+rst.getInt(3)+"</th>");out.print("<th>"+rst.getInt(4)+"</th>");out.print("<th>"+rst.getInt(5)+"</th>");out.print("</tr>");}out.print("</table>");conn.close();}catch(Exception e){e.printStackTrace();}%></div>
</body>
</html>

text3.jsp

<%@page import="java.sql.DriverManager"%>
<%@page import="java.sql.ResultSet"%>
<%@page import="java.sql.Statement"%>
<%@page import="java.sql.Connection"%>
<%@ 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>
<title>主页</title>
<link rel="stylesheet" href="css/stduent.css" type="text/css">
</head>
<body><div class="header"><h1>花店会员管理系统</h1></div><div class="topnav"><a href="text1.jsp">主页</a><a href="text2.jsp">插入会员信息</a><a href="text4.jsp">删除会员信息</a><a href="text6.jsp">修改会员信息</a><a href="text8.jsp">查询会员信息</a><a href="map.html">花店地址</a></div><div><p>插入新记录1条</p><%String id=request.getParameter("id");if(id==null){id="0000";}String name=request.getParameter("name");if(name==null){name="无名氏";}String math=request.getParameter("math");if(math==null){math="0";}String english=request.getParameter("english");if(english==null){english="0";}String physics=request.getParameter("physics");if(physics==null){physics="0";}Connection conn=null;Statement stm=null;ResultSet rst=null;try{Class.forName("com.mysql.cj.jdbc.Driver");conn=DriverManager.getConnection("jdbc:mysql://localhost:3306/student?useSSL=true&serverTimezone=GMT","root","root");stm=conn.createStatement();String sql="insert into score values('"+id+"','"+name+"','"+math+"','"+english+"','"+physics+"')";stm.executeUpdate(sql);rst=stm.executeQuery("select * from score");out.print("<table border='1'>");out.print("<tr>");out.print("<th>编号</th>");out.print("<th>姓名</th>");out.print("<th>充值金额</th>");out.print("<th>购买次数</th>");out.print("<th>积分</th>");out.print("</tr>");while(rst.next()){out.print("<tr>");out.print("<th>"+rst.getString("id")+"</th>");out.print("<th>"+rst.getString(2)+"</th>");out.print("<th>"+rst.getInt(3)+"</th>");out.print("<th>"+rst.getInt(4)+"</th>");out.print("<th>"+rst.getInt(5)+"</th>");out.print("</tr>");}out.print("</table>");conn.close();}catch(Exception e){e.printStackTrace();}%></div>
</body>
</html>

text4.jsp

<%@page import="java.sql.DriverManager"%>
<%@page import="java.sql.ResultSet"%>
<%@page import="java.sql.Statement"%>
<%@page import="java.sql.Connection"%>
<%@ 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>
<title>主页</title>
<link rel="stylesheet" href="css/stduent.css" type="text/css">
</head>
<body><div class="header"><h1>花店会员管理系统</h1></div><div class="topnav"><a href="text1.jsp">主页</a><a href="text2.jsp">插入会员信息</a><a href="text4.jsp">删除会员信息</a><a href="text6.jsp">修改会员信息</a><a href="text8.jsp">查询会员信息</a><a href="map.html">花店地址</a></div><div class="content"><p>请输入删除会员的编号</p><form action="text5.jsp"><input type="text" name="id"><input type="submit" name="submit" value="提交编号"></form><p>删除记录前的会员信息</p><%Connection conn=null;Statement stm=null;ResultSet rst=null;try{Class.forName("com.mysql.cj.jdbc.Driver");conn=DriverManager.getConnection("jdbc:mysql://localhost:3306/student?useSSL=true&serverTimezone=GMT","root","root");stm=conn.createStatement();  String sql="select * from score";rst=stm.executeQuery(sql);out.print("<table border='1'>");out.print("<tr>");out.print("<th width='100'>编号</th>");out.print("<th width='100'>姓名</th>");out.print("<th width='100'>充值金额</th>");out.print("<th width='100'>购买次数</th>");out.print("<th width='100'>积分</th>");out.print("</tr>");while(rst.next()){out.print("<tr>");out.print("<th>"+rst.getString("id")+"</th>");out.print("<th>"+rst.getString(2)+"</th>");out.print("<th>"+rst.getInt(3)+"</th>");out.print("<th>"+rst.getInt(4)+"</th>");out.print("<th>"+rst.getInt(5)+"</th>");out.print("</tr>");}out.print("</table>");conn.close();}catch(Exception e){e.printStackTrace();}%></div>
</body>
</html>

text5.jsp

<%@page import="java.sql.DriverManager"%>
<%@page import="java.sql.ResultSet"%>
<%@page import="java.sql.Statement"%>
<%@page import="java.sql.Connection"%>
<%@ 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>
<title>主页</title>
<link rel="stylesheet" href="css/stduent.css" type="text/css">
</head>
<body><div class="header"><h1>花店会员管理系统</h1></div><div class="topnav"><a href="text1.jsp">主页</a><a href="text2.jsp">插入会员信息</a><a href="text4.jsp">删除会员信息</a><a href="text6.jsp">修改会员信息</a><a href="text8.jsp">查询会员信息</a><a href="map.html">花店地址</a></div><div class="content"><%Connection conn=null;Statement stm=null;ResultSet rst=null;String id=request.getParameter("id");try{Class.forName("com.mysql.cj.jdbc.Driver");conn=DriverManager.getConnection("jdbc:mysql://localhost:3306/student?useSSL=true&serverTimezone=GMT","root","root");stm=conn.createStatement();  String str="delete from score where id='"+id+"'";stm.executeUpdate(str);out.print("删除记录后的会员信息");String sql="select * from score";rst=stm.executeQuery(sql);out.print("<table border='1'>");out.print("<tr>");out.print("<th width='100'>编号</th>");out.print("<th width='100'>姓名</th>");out.print("<th width='100'>充值金额</th>");out.print("<th width='100'>购买次数</th>");out.print("<th width='100'>积分</th>");out.print("</tr>");while(rst.next()){out.print("<tr>");out.print("<th>"+rst.getString("id")+"</th>");out.print("<th>"+rst.getString(2)+"</th>");out.print("<th>"+rst.getInt(3)+"</th>");out.print("<th>"+rst.getInt(4)+"</th>");out.print("<th>"+rst.getInt(5)+"</th>");out.print("</tr>");}out.print("</table>");}catch(Exception e){e.printStackTrace();}finally{if(conn!=null){conn.close();}}%></div>
</body>
</html>

text6.jsp

<%@page import="java.sql.DriverManager"%>
<%@page import="java.sql.ResultSet"%>
<%@page import="java.sql.Statement"%>
<%@page import="java.sql.Connection"%>
<%@ 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>
<title>主页</title>
<link rel="stylesheet" href="css/stduent.css" type="text/css">
</head>
<body><div class="header"><h1>花店会员管理系统</h1></div><div class="topnav"><a href="text1.jsp">主页</a><a href="text2.jsp">插入会员信息</a><a href="text4.jsp">删除会员信息</a><a href="text6.jsp">修改会员信息</a><a href="text8.jsp">查询会员信息</a><a href="map.html">花店地址</a></div><div class="content"><p>请输入要修改的会员的姓名:</p><form action="text7.jsp">要修改的会员的姓名:<input type="text" name="name"><br>新的充值金额:<input type="text" name="math"><br>新的购买次数:<input type="text" name="english"><br>新的积分:<input type="text" name="physics"><br><input type="submit" name="submit" value="修改"></form><p>修改记录前的会员信息</p><%Connection conn=null;Statement stm=null;ResultSet rst=null;try{Class.forName("com.mysql.cj.jdbc.Driver");conn=DriverManager.getConnection("jdbc:mysql://localhost:3306/student?useSSL=true&serverTimezone=GMT","root","root");stm=conn.createStatement();  String sql="select * from score";rst=stm.executeQuery(sql);out.print("<table border='1'>");out.print("<tr>");out.print("<th width='100'>编号</th>");out.print("<th width='100'>姓名</th>");out.print("<th width='100'>充值金额</th>");out.print("<th width='100'>购买次数</th>");out.print("<th width='100'>积分</th>");out.print("</tr>");while(rst.next()){out.print("<tr>");out.print("<th>"+rst.getString("id")+"</th>");out.print("<th>"+rst.getString(2)+"</th>");out.print("<th>"+rst.getInt(3)+"</th>");out.print("<th>"+rst.getInt(4)+"</th>");out.print("<th>"+rst.getInt(5)+"</th>");out.print("</tr>");}out.print("</table>");conn.close();}catch(Exception e){e.printStackTrace();}finally{if(conn!=null){conn.close();}}%></div>
</body>
</html>

text7.jsp

<%@page import="java.sql.PreparedStatement"%>
<%@page import="java.sql.DriverManager"%>
<%@page import="java.sql.ResultSet"%>
<%@page import="java.sql.Statement"%>
<%@page import="java.sql.Connection"%>
<%@ 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>
<title>主页</title>
<link rel="stylesheet" href="css/stduent.css" type="text/css">
</head>
<body><div class="header"><h1>花店会员管理系统</h1></div><div class="topnav"><a href="text1.jsp">主页</a><a href="text2.jsp">插入会员信息</a><a href="text4.jsp">删除会员信息</a><a href="text6.jsp">修改会员信息</a><a href="text8.jsp">查询会员信息</a><a href="map.html">花店地址</a></div><div class="content"><%Connection conn=null;Statement stm=null;ResultSet rst=null;PreparedStatement pstmt=null;String n=request.getParameter("name");String a=request.getParameter("math");String b=request.getParameter("english");String c=request.getParameter("physics");try{Class.forName("com.mysql.cj.jdbc.Driver");conn=DriverManager.getConnection("jdbc:mysql://localhost:3306/student?useSSL=true&serverTimezone=GMT","root","root");String str="update score set math=?,english=?,physics=? where name=?";pstmt=conn.prepareStatement(str);pstmt.setString(1, a);pstmt.setString(2, b);pstmt.setString(3, c);pstmt.setString(4, n);pstmt.executeUpdate();out.print("更新记录后的会员信息");String sql="select * from score";rst=pstmt.executeQuery(sql);out.print("<table border='1'>");out.print("<tr>");out.print("<th width='100'>编号</th>");out.print("<th width='100'>姓名</th>");out.print("<th width='100'>充值金额</th>");out.print("<th width='100'>购买次数</th>");out.print("<th width='100'>积分</th>");out.print("</tr>");while(rst.next()){out.print("<tr>");out.print("<th>"+rst.getString(1)+"</th>");out.print("<th>"+rst.getString(2)+"</th>");out.print("<th>"+rst.getInt(3)+"</th>");out.print("<th>"+rst.getInt(4)+"</th>");out.print("<th>"+rst.getInt("physics")+"</th>");out.print("</tr>");}out.print("</table>");}catch(Exception e){e.printStackTrace();}finally{if(conn!=null){conn.close();}}%></div>
</body>
</html>
</body>
</html>

text8.jsp

<%@page import="java.sql.DriverManager"%>
<%@page import="java.sql.ResultSet"%>
<%@page import="java.sql.Statement"%>
<%@page import="java.sql.Connection"%>
<%@ 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>
<title>查询</title>
<link rel="stylesheet" href="css/stduent.css" type="text/css">
</head>
<body><div class="header"><h1>花店会员管理系统</h1></div><div class="topnav"><a href="text1.jsp">主页</a><a href="text2.jsp">插入会员信息</a><a href="text4.jsp">删除会员信息</a><a href="text6.jsp">修改会员信息</a><a href="text8.jsp">查询会员信息</a><a href="map.html">花店地址</a></div><div class="content"><%Connection conn=null;Statement stm=null;ResultSet rst=null;try{Class.forName("com.mysql.cj.jdbc.Driver");conn=DriverManager.getConnection("jdbc:mysql://localhost:3306/student?useSSL=true&serverTimezone=GMT","root","root");stm=conn.createStatement();String sql="select * from score";rst=stm.executeQuery(sql);out.print("所有会员信息");out.print("<table border='1'>");out.print("<tr>");out.print("<th width='100'>编号</th>");out.print("<th width='100'>姓名</th>");out.print("<th width='100'>充值金额</th>");out.print("<th width='100'>购买次数</th>");out.print("<th width='100'>积分</th>");out.print("</tr>");while(rst.next()){out.print("<tr>");out.print("<th>"+rst.getString(1)+"</th>");out.print("<th>"+rst.getString(2)+"</th>");out.print("<th>"+rst.getInt(3)+"</th>");out.print("<th>"+rst.getInt(4)+"</th>");out.print("<th>"+rst.getInt("physics")+"</th>");out.print("</tr>");}out.print("</table>");}catch(Exception e){e.printStackTrace();}finally{if(conn!=null){conn.close();}}%></div></body>
</body>
</html>

login.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>
</head>
<body><form action="CheckUser">用户名:<input type="text" name="username"><br>密&nbsp;&nbsp;&nbsp;&nbsp;码:<input type="password" name="pwd"><br><input type="submit" value="登录">  </form>
</body>
</html>

map.html

<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>百度地图API自定义地图</title>
<!-- 引用百度地图api -->
<link rel="stylesheet" href="css/map.css">
<script type="text/javascript"src="http://api.map.baidu.com/api?v=2.0&ak=申请的百度地图API"></script>
</head>
<body onload="display()"><!-- 头部区域 --><div id="header"><h1>我的导航地图</h1></div><!-- 内容区域 --><div class="row"><div class="left"><div class="map" id="mymap"></div></div><div class="right"><div class="card"><form action="#" onsubmit="return false"><label>输入坐标</label><h5>经度</h5><input type="text" placeholder="请输入经度" id="longitute"><h5>维度</h5><input type="text" placeholder="请输入维度" id="latitute"><!-- submit提交 --><input type="submit"onclick ="display()"></form></div></div></div><!-- 底部区域 --><div class="footer"><p>@ 2020 百度地图</p></div><script type="text/javascript">function display() {//GL版命名空间为BMapvar x = document.getElementById("longitute").value;//value表示文本框的值var y = document.getElementById("latitute").value;if (x == "" || y == "") {x = 119.150;y = 36.760;}var map = new BMap.Map("mymap");map.centerAndZoom(new BMap.Point(x, y), 15);map.enableScrollWheelZoom(true);map.enableKeyboard();map.enableDragging();map.enableDoubleClick();}
</script>
</body>
</html>

1.js

function display() {var x = document.getElementById("x" ).value;var y = document.getElementById("y").value;if (x == "" || y== "") {X = 119.184801;y = 36.677454;}var map = new BMapGL.Map("allmap"); map.centerAndZoom(new BMapGL.Point(x,y), 14); map.enableScrollWheelZoom(true);
}

map.css

*{box-sizing: border-box;
}body{max-width: 1260px;margin: auto;
}#header{background-color: #f1f1f1;padding: 20px;text-align: center;/* 设置圆角 */border-radius: 10px;
}.row::after{/* 浮动 */content: "";/* 显示方式 */display: table;/* 清除两边 */clear: both;
}.left{width: 80%;float:left;
}.right{width: 20%;float: left;
}
.map {width: 100%;height: 800px;margin-top:10px;background-color: #ddd;
}.card {width:100%;margin-top:10px;background-color: #f1f1f1;padding: 20px;margin-left: 10px;border-radius: 10px;
}.footer{background-color: #f1f1f1;padding: 20px;text-align: center;margin-top: 10px;border-radius: 10px;
}input[type=text]{border:1px solid green;padding: 10px 12px;resize: vertical;width: 100%;
}input[type=submit]{border:1px solid green;background-color:green;padding: 12px;margin: 20px auto;color: white;display: block;
}

student.css

*{box-sizing: border-box;
}body {max-width: 1260px;background-color: #f1f1f1;margin: 0 auto;
}.header{background-color: #333;text-align: center;color: white;padding: 30px;
}.topnav{background-color: green;
}.topnav a{text-decoration: name;padding: 14px 20px;display: inline-block;font-size: 20px;color: white;;
}.tapnav a:hover {background-color: #555;
}

web.xml

<?xml version="1.0" encoding="UTF-8"?>
<web-app xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns="http://xmlns.jcp.org/xml/ns/javaee" xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-app_4_0.xsd" version="4.0"><display-name>6.10_login</display-name><welcome-file-list><welcome-file>index.html</welcome-file><welcome-file>index.htm</welcome-file><welcome-file>index.jsp</welcome-file><welcome-file>default.html</welcome-file><welcome-file>default.htm</welcome-file><welcome-file>default.jsp</welcome-file></welcome-file-list><servlet><servlet-name>checkuser</servlet-name><servlet-class>com.servlet.CheckUser</servlet-class></servlet><servlet-mapping><servlet-name>checkuser</servlet-name><url-pattern>/com.servlet.CheckUser</url-pattern></servlet-mapping>
</web-app>

failure.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>
</head>
<body><h1>你的用户名或密码不正确!</h1>
</body>
</html>

CheckUser.java

package servlet;import java.io.IOException;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;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 javax.servlet.http.HttpSession;/*** Servlet implementation class CheckUser*/
@WebServlet("/CheckUser")
public class CheckUser extends HttpServlet {private static final long serialVersionUID = 1L;/*** @see HttpServlet#HttpServlet()*/public CheckUser() {// 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 stubString username = request.getParameter("username");String password = request.getParameter("pwd");UserBean user = new UserBean();user.setUsername(username);user.setPassword(password);HttpSession session = request.getSession();Connection conn = null;PreparedStatement ps = null;ResultSet rs = null;final String Driver = "com.mysql.cj.jdbc.Driver";final String URL = "jdbc:mysql://localhost:3306/student?userSSL=true&serverTimezone=GMT";final String USERNAME = "root";final String PASSWORD = "root";try {Class.forName(Driver);conn = DriverManager.getConnection(URL, USERNAME, PASSWORD);String sql = "select * from users where username=? and password=?";ps = conn.prepareStatement(sql);ps.setString(1, username);ps.setString(2, password);rs = ps.executeQuery();if (rs.next()) {session.setAttribute("user", user);response.sendRedirect("text1.jsp");} else {response.sendRedirect("failure.jsp");}rs.close();ps.close();conn.close();} catch (Exception e) {// TODO: handle exceptione.printStackTrace();}}/*** @see HttpServlet#doPost(HttpServletRequest request, HttpServletResponse*      response)*/protected void doPost(HttpServletRequest request, HttpServletResponse response)throws ServletException, IOException {// TODO Auto-generated method stubdoGet(request, response);}}

UserBean.java

package servlet;public class UserBean {private String username;private String password;public String getUsername() {return username;}public void setUsername(String username) {this.username = username;}public String getPassword() {return password;}public void setPassword(String password) {this.password = password;}
}

效果图:

原文链接:https://eee.run/2020-06-18/491.html

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