JavaWeb JavaBean JSP MVC MySQL Tomcat JavaScript Layui Ajax
基础JSP+Servlet或JSP+SSM(Spring、SpringMVC、MyBatis)框架或JSP+SSM+Maven(pom.xml)框架或SpringBoot…均可
开发工具：eclipse/idea/myeclipse/sts等均可配置运行
适用
课程设计，大作业，毕业设计，项目练习，学习演示等
maxmin: true,
content: 'fang_add.jsp'
});
} else {
//layer.alert('这是工具栏右侧自定义的一个图标按钮');
}
});
//搜索
let $ = layui.$, active = {
reload: function () {
type: 2,
area: ['800px', '650px'],
fixed: false, //不固定
maxmin: true,
content: 'NoticeServlet?action=get&id=' + data.id
});
obj.update({});//同步更新缓存对应的值
} else if (layEvent === 'LAYTABLE_TIPS') {
layer.alert('Hi，头部工具栏扩展的右侧图标。');
}
});
//头工具栏事件
table.on('toolbar(myTable)', function (obj) {
if ('add' == obj.event) {
layer.msg('添加');
layer.open({
type: 2,
area: ['800px', '550px'],
fixed: false, //不固定
maxmin: true,
<meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1">
<title>房产房屋交易管理系统</title>
<link rel="stylesheet" href="js/layui/css/layui.css">
<script src="js/jquery.js"></script>
<script src="js/layer.js"></script>
</head>
<body class="layui-layout-body">
<div class="layui-layout layui-layout-admin">
<div class="layui-header">
<div class="layui-logo" style="font-weight: bold;font-size: 19px">房产房屋交易管理系统</div>
<ul class="layui-nav layui-layout-left"></ul>
<c:if test="${loginUser==null}">
<ul class="layui-nav layui-layout-right">
<li class="layui-nav-item"><a href="login.jsp">请登录</a></li>
</ul>
</c:if>
<c:if test="${loginUser!=null}">
"data": result //解析数据列表
};
},
page: { //支持传入 laypage 组件的所有参数（某些参数除外，如：jump/elem） - 详见文档
layout: ['limit', 'count', 'prev', 'page', 'next', 'skip'], //自定义分页布局
groups: 1, //只显示 1 个连续页码
first: false, //不显示首页
last: false, //不显示尾页
},
toolbar: '#myToolbar', //开启头部工具栏，并为其绑定左侧模板
defaultToolbar: ['filter', 'exports', 'print', { //自定义头部工具栏右侧图标。如无需自定义，去除该参数即可
title: '提示',
layEvent: 'LAYTABLE_TIPS',
icon: 'layui-icon-tips'
}],
title: '用户列表',
cols: [
[
{
field: 'username',
title: '用户名',
}
//@Override
public boolean delete(long id) {
try {
Connection c = Util.getConnection();
Statement s = c.createStatement();
String sql = "delete from `t_fang` where id = " + id;
s.execute(sql);
s.close();
c.close();
return true;
} catch (Exception e) {
e.printStackTrace();
return false;
}
}
//@Override
</div>
<div class="layui-form-item">
<label class="layui-form-label">挂牌价(万)：</label>
<div class="layui-input-block">
<input type="text" name="fangPrice" lay-verify="required|fangPrice" class="layui-input" value="${vo.fangPrice}">
</div>
</div>
<div class="layui-form-item">
<label class="layui-form-label">地址：</label>
<div class="layui-input-block">
<input type="text" name="fangAddress" lay-verify="required|fangAddress" class="layui-input" value="${vo.fangAddress}">
</div>
</div>
<div class="layui-form-item">
<label class="layui-form-label">类型：</label>
<div class="layui-input-block">
<input name="fangType" type="radio" value="新房" ${vo.fangType=='新房'?'checked':''} class="layui-input" title="新房"/>
<input name="fangType" type="radio" value="二手房" ${vo.fangType=='二手房'?'checked':''} class="layui-input" title="二手房"/>
}
try {
if (isMessyCode(str)) {
str = new String(str.getBytes("ISO-8859-1"), "UTF-8");
}
if (isMessyCode(str)) {
str = new String(str.getBytes("GB2312"), "UTF-8");
}
if (isMessyCode(str)) {
str = new String(str.getBytes("GBK"), "UTF-8");
}
if (isMessyCode(str)) {
str = new String(str.getBytes("UTF-8"), "ISO-8859-1");
vo.setNoticeType(rs.getString("notice_type"));
vo.setCreateDate(rs.getString("create_date"));
list.add(vo);
}
String sqlCount = "select count(*) from `t_notice` where 1=1 " + condition;
ps = c.prepareStatement(sqlCount);
rs = ps.executeQuery();
if (rs.next()) {
totalCount = rs.getInt(1);
}
rs.close();
ps.close();
c.close();
} catch (Exception e) {
e.printStackTrace();
}
Map<String, Object> result = new HashMap();
result.put("list", list);
result.put("totalCount", totalCount);
return result;
}
}
package com.demo.util;
// 在图形上输出验证码字符，x和y都是随机生成的
g.drawString(String.valueOf(codeChar), 16 * i + random.nextInt(7), height - random.nextInt(6));
}
HttpSession session = request.getSession();
session.setMaxInactiveInterval(5 * 60);
// 将验证码保存在session对象中，key为validation_code
session.setAttribute("validationCode", validationCode.toString());
g.dispose();// 关闭Graphics对象
OutputStream os = response.getOutputStream();
ImageIO.write(image, "JPEG", os);// 以JPEG格式向客户端发送图形验证码
} else if ("resetPassword".equalsIgnoreCase(action)) {
vo.setFangText(rs.getString("fang_text"));
}
c.close();
} catch (Exception e) {
e.printStackTrace();
}
return vo;
}
//@Override
public Map<String, Object> list(Map<String, Object> params) {
List<Fang> list = new ArrayList();
int totalCount = 0;
String condition = "";
String sqlList;
if (params.get("searchColumn") != null && !"".equals(params.get("searchColumn"))) {
condition += " and `" + params.get("searchColumn") + "` like '%" + params.get("keyword") + "%'";
}
try {
Connection c = Util.getConnection();
PreparedStatement ps;
ResultSet rs;
String limit = (params.get("startIndex") != null && params.get("pageSize") != null) ? " limit " + params.get("startIndex") + "," + params.get("pageSize") : "";
sqlList = "select * from `t_fang` where 1=1 " + condition + " order by id asc " + limit + ";";
title: '类型',
templet: vo => vo.fangType ? vo.fangType : "",
},
{
field: 'fangText',
title: '备注',
},
{
align: 'center',
fixed: 'right',
title: '操作',
width: 130,
templet: vo => {
let flag = ${loginUser.userType == '管理员'};
return flag ? '<a class="layui-btn layui-btn-xs" lay-event="edit">编辑</a><a class="layui-btn layui-btn-danger layui-btn-xs" lay-event="del">删除</a>' : '';
}
}
]
</body>
</html>
<%@ page contentType="text/html; charset=UTF-8" pageEncoding="UTF-8" %>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c" %>
<%@ taglib prefix="fn" uri="http://java.sun.com/jsp/jstl/functions" %>
<%@ taglib prefix="fmt" uri="http://java.sun.com/jsp/jstl/fmt" %>
<html>
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>修改房产</title>
<script src="js/jquery.js"></script>
<link rel="stylesheet" href="js/layui/css/layui.css">
</head>
<body style="padding: 20px">
<form class="layui-form" action="">
<input type="hidden" name="id" class="layui-input" value="${vo.id}">
<div class="layui-form-item">
<label class="layui-form-label">房产名：</label>
<div class="layui-input-block">
<input type="text" name="fangName" lay-verify="required|fangName" class="layui-input" value="${vo.fangName}">
</div>
String sql = "update `t_order` set `order_no` = ? ,`order_name` = ? ,`order_phone` = ? ,`order_fang` = ? ,`order_address` = ? ,`order_date` = ? ,`order_price` = ? ,`order_text` = ? where `id` = ?";
try {
Connection c = Util.getConnection();
PreparedStatement ps = c.prepareStatement(sql);
ps.setString(1, vo.getOrderNo());
ps.setString(2, vo.getOrderName());
ps.setString(3, vo.getOrderPhone());
ps.setString(4, vo.getOrderFang());
ps.setString(5, vo.getOrderAddress());
ps.setString(6, vo.getOrderDate());
ps.setString(7, vo.getOrderPrice());
ps.setString(8, vo.getOrderText());
ps.setLong(9, vo.getId());
ps.execute();
ps.close();
c.close();
} catch (Exception e) {
e.printStackTrace();
}
ps.close();
c.close();
} catch (Exception e) {
e.printStackTrace();
}
}
//@Override
public boolean delete(long id) {
try {
Connection c = Util.getConnection();
Statement s = c.createStatement();
String sql = "delete from `t_user` where id = " + id;
s.execute(sql);
s.close();
width: 130,
templet: vo => {
let flag1 = ${loginUser.id} == vo.id;
let flag2 = ${loginUser.userType == '管理员'};
return ((flag1 || flag2) ? '<a class="layui-btn layui-btn-xs" lay-event="edit">编辑</a>' : '') + ((flag2) ? '<a class="layui-btn layui-btn-danger layui-btn-xs" lay-event="del">删除</a>' : '');
}
}
]
],
});
//监听工具条
table.on('tool(myTable)', function (obj) { //注：tool 是工具条事件名，myTable 是 table 原始容器的属性 lay-filter="对应的值"
let data = obj.data; //获得当前行数据
let layEvent = obj.event; //获得 lay-event 对应的值（也可以是表头的 event 参数对应的值）
if (layEvent === 'del') { //删除
// layer.confirm('删除' + data.realName + "?", function (index) {
$.ajax({
type: "GET",
dataType: "text",
url: "UserServlet?action=delete&id=" + data.id,
public static String DBUSER = "root";
public static String PASSWORD = "123456";
/**
* 取得数据库连接对象
*
* @return 如果连接成功则返回连接对象，如果连接失败返回null
*/
public static Connection getConnection() throws Exception {
Class.forName(DBDRIVER);
return DriverManager.getConnection(DBURL, DBUSER, PASSWORD);
}
/**
* 测试连接是否成功
*
* @param args
* @throws Exception
*/
public static void main(String[] args) {
try {
});
obj.del(); //删除对应行（tr）的DOM结构，并更新缓存
//parent.location.reload();//刷新父级页面
// layer.close(index);
//parent.location.reload();//刷新父级页面
layer.msg(data.realName + ' 删除成功！');
// });
} else if (layEvent === 'edit') { //编辑
layer.open({
type: 2,
area: ['800px', '550px'],
fixed: false, //不固定
maxmin: true,
content: 'UserServlet?action=editPre&id=' + data.id
});
obj.update({});//同步更新缓存对应的值
} else if (layEvent === 'info') { //详情
<ul class="layui-nav layui-layout-right">
<li class="layui-nav-item"><a href="login.jsp">请登录</a></li>
</ul>
</c:if>
<c:if test="${loginUser!=null}">
<ul class="layui-nav layui-layout-right">
<li class="layui-nav-item"><a>${loginUser.username}</a></li>
<li class="layui-nav-item"><a href="AuthServlet?action=logout">退出登录</a></li>
</ul>
</c:if>
</div>
<div class="layui-side layui-bg-black">
<div class="layui-side-scroll">
<ul class="layui-nav layui-nav-tree" lay-filter="test">
<!-- 侧边栏 -->
<jsp:include page="menu.jsp">
<jsp:param value="active" name="Notice_active"/>
</jsp:include>
</ul>
</div>
</div>
public class OrderDAOImpl implements OrderDAO {
//@Override
public void add(Order vo) {
String sql = "insert into `t_order` (`order_no`,`order_name`,`order_phone`,`order_fang`,`order_address`,`order_date`,`order_price`,`order_text`) values(?,?,?,?,?,?,?,?)";
try {
Connection c = Util.getConnection();
PreparedStatement ps = c.prepareStatement(sql);
ps.setString(1, vo.getOrderNo());
ps.setString(2, vo.getOrderName());
ps.setString(3, vo.getOrderPhone());
ps.setString(4, vo.getOrderFang());
ps.setString(5, vo.getOrderAddress());
ps.setString(6, vo.getOrderDate());
ps.setString(7, vo.getOrderPrice());
toolbar: '#myToolbar', //开启头部工具栏，并为其绑定左侧模板
defaultToolbar: ['filter', 'exports', 'print', { //自定义头部工具栏右侧图标。如无需自定义，去除该参数即可
title: '提示',
layEvent: 'LAYTABLE_TIPS',
icon: 'layui-icon-tips'
}],
title: '公告列表',
cols: [
[
{
field: 'noticeName',
title: '标题',
templet: vo => (vo = vo.noticeName) ? '<a href="#" style="color: #009688;">' + vo + '</a>' : '',
* @return
*/
public static String getTime() {
return new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(System.currentTimeMillis());
}
/**
* 判断字符串是不是中文
*
* @param c
* @return
*/
private static boolean isChinese(char c) {
Character.UnicodeBlock ub = Character.UnicodeBlock.of(c);
return (ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS
|| ub == Character.UnicodeBlock.CJK_COMPATIBILITY_IDEOGRAPHS
|| ub == Character.UnicodeBlock.CJK_UNIFIED_IDEOGRAPHS_EXTENSION_A
parseData: function (res) { //res：即为原始返回的数据
let result = this.page.curr ? res.slice(this.limit * (this.page.curr - 1), this.limit * this.page.curr) : res.slice(0, this.limit);
return {
"code": 0, //解析接口状态
"msg": '', //解析提示文本
"count": res.length, //解析数据长度（集合个数）
"data": result //解析数据列表
};
},
page: { //支持传入 laypage 组件的所有参数（某些参数除外，如：jump/elem） - 详见文档
layout: ['limit', 'count', 'prev', 'page', 'next', 'skip'], //自定义分页布局
groups: 1, //只显示 1 个连续页码
first: false, //不显示首页
last: false, //不显示尾页
},
toolbar: '#myToolbar', //开启头部工具栏，并为其绑定左侧模板
/**
* 为防止页面传进来的内容因为编码不同等原因造成乱码，这里作统一的转换
*
* @param parameterName
* @return
*/
public static String decode(javax.servlet.http.HttpServletRequest request, String parameterName) {
String str;
if ((str = request.getParameter(parameterName)) == null) {
return null;
}
try {
if (isMessyCode(str)) {
str = new String(str.getBytes("ISO-8859-1"), "UTF-8");
}
if (isMessyCode(str)) {
str = new String(str.getBytes("GB2312"), "UTF-8");
}
if (isMessyCode(str)) {
str = new String(str.getBytes("GBK"), "UTF-8");
}
if (isMessyCode(str)) {
str = new String(str.getBytes("UTF-8"), "ISO-8859-1");
}
e.printStackTrace();
}
}
//@Override
public void update(Notice vo) {
String sql = "update `t_notice` set `notice_name` = ? ,`notice_text` = ? ,`notice_type` = ? ,`create_date` = ? where `id` = ?";
try {
Connection c = Util.getConnection();
PreparedStatement ps = c.prepareStatement(sql);
ps.setString(1, vo.getNoticeName());
ps.setString(2, vo.getNoticeText());
ps.setString(3, vo.getNoticeType());
ps.setString(4, vo.getCreateDate());
ps.setLong(5, vo.getId());
ps.execute();
ps.close();
c.close();
} catch (Exception e) {
e.printStackTrace();
list.add(vo);
}
String sqlCount = "select count(*) from `t_notice` where 1=1 " + condition;
ps = c.prepareStatement(sqlCount);
rs = ps.executeQuery();
if (rs.next()) {
totalCount = rs.getInt(1);
}
rs.close();
ps.close();
c.close();
} catch (Exception e) {
e.printStackTrace();
}
Map<String, Object> result = new HashMap();
运行环境
Java≥6、Tomcat≥7.0、MySQL≥5.5
开发工具
eclipse/idea/myeclipse/sts等均可配置运行
技术框架
JavaWeb JavaBean JSP MVC MySQL Tomcat JavaScript Layui Ajax
基础JSP+Servlet或JSP+SSM(Spring、SpringMVC、MyBatis)框架或JSP+SSM+Maven(pom.xml)框架或SpringBoot…均可
适用
课程设计，大作业，毕业设计，项目练习，学习演示等
功能说明
登录、注册、退出、用户模块、公告模块、房产模块、交易模块的增删改查管理
↖[获取源码方式]见左侧
