写这篇帖子的原因是自己最近完成了小型系统,使用到了DataTables表格插件,但在使用的过程中,遇到了一些大问题,且国内对相关插件的资料不多。致使自己进度缓慢,现对该插件及后端所使用的技术进行分享。
需求
- 对数据进行分页
- 数据的格式化
- 对指定数据的模糊查询
所使用的技术
前端:JQuery DataTables、LayUI弹出层、BootStrap
后端:Spring Boot、thymeleaf模板引擎、Mybatis持久层框架
DataTable参数
-
DataTables插件需要向后端传递必要的3个值,分别是
前三个参数是必须要传递的,由插件完成,后端获取就可以了
- draw:一个响应的绘制计数器
- start:分页参数的其中一个参数
- length:分页参数的另一个参数
- 之后的多个参数可以是将要进行模糊查询的数据
-
后端向前端返回的值:
下列字段是必须要传递的,当然还有其他的数据,具体请看官网介绍
- draw:这个数据由前端传过来,后端不作处理,直接返回即可
- recordsFiltered:过滤后的数据总数
- recordsTotal:数据的总条数
- data:返回的json数据
对日志功能进行分析
后端:
项目结构图:
- dao接口
@Repository
@Mapper
public interface SysLogInfoDao {
// 分页查询数据
List<SysLogInfo> listSysLogInfo(Map map);
// 查询总数量
Integer getLogInfoCount(Map map);
}
- mapping.xml
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper namespace="com.project.sccl.dao.SysLogInfoDao">
<!--查询登录日志或者单点日志-->
<!--动态SQL实现数据的查询-->
<select id="listSysLogInfo" parameterType="java.util.Map" resultType="com.project.sccl.domain.SysLogInfo">
SELECT *
FROM
(SELECT
A.*,
ROWNUM RN
FROM
(SELECT L.party_account,
to_char(L.access_date,
'YYYY-MM-DD HH24-MI-SS') AS access_date, to_char(L.response_date,'YYYY-MM-DD HH24-MI-SS') AS response_date,
L.log_type,L.app_id,L.menu_id,L.menu_name,L.phone_info,L.phone_unique,L.error_msg from sys_log_info L
<where>
<if test="account != null and account.length > 0">
L.party_account = #{account}
</if>
<if test='logtype.length > 0 and logtype == "2" '>
and L.app_id = 'FF_LOGIN'
</if>
<if test='logtype.length > 0 and logtype == "1" '>
and L.app_id != 'FF_LOGIN'
</if>
<if test="logdate != null and logdate.length > 0">
and to_char(L.access_date, 'yyyy-mm-dd') = #{logdate}
</if>
<if test="starttime != null and starttime.length > 0 or endtime != null and endtime.length > 0">
and L.access_date BETWEEN to_date(#{starttime}, 'yyyy-mm-dd HH24:MI') AND to_date(#{endtime},
'yyyy-mm-dd HH24:MI')
</if>
</where>
order by L.access_date desc
) A
WHERE ROWNUM
<![CDATA[<= (#{end})) TL
WHERE RN >= #{start}
]]>
</select>
<!--查数量-->
<select id="getLogInfoCount" parameterType="java.util.Map" resultType="java.lang.Integer">
SELECT count(1)
FROM sys_log_info
<where>
<if test="account != null and account.length > 0">
party_account = #{account}
</if>
<if test='logtype.length > 0 and logtype == "2" '>
and app_id = 'FF_LOGIN'
</if>
<if test='logtype.length > 0 and logtype == "1" '>
and app_id != 'FF_LOGIN'
</if>
<if test="logdate != null and logdate.length > 0">
and to_char(access_date, 'yyyy-mm-dd') = #{logdate}
</if>
<if test="starttime != null and starttime.length > 0 or endtime != null and endtime.length > 0">
and access_date BETWEEN to_date(#{starttime}, 'yyyy-mm-dd HH24:MI') AND to_date(#{endtime},
'yyyy-mm-dd HH24:MI')
</if>
</where>
</select>
</mapper>
- service接口
public interface SysLogInfoService {
// 返回数据
Paging<SysLogInfo> listLogInfo(String account,
String logtype,
String logdate,
String starttime,
String endtime,
Integer start,
Integer length,
Integer draw);
}
- service接口实现类
@Service
public class SysLogInfoServiceImpl implements SysLogInfoService {
@Autowired
private SysLogInfoDao sysLogInfoDao;
@Override
public Paging<SysLogInfo> listLogInfo(String account, String logtype, String logdate, String starttime, String endtime, Integer start, Integer length, Integer draw) {
// 将参数放进map中
Map<String, Object> map = new HashMap<>();
Map<String, Object> map1 = new HashMap<>();
List<SysLogInfo> list = null;
map.put("account", account);
map.put("logtype", logtype);
map.put("logdate", logdate);
map.put("starttime", starttime.replace("T", " "));
map.put("endtime", endtime.replace("T", " "));
map.put("start", start + 1);
map.put("end", start + length);
map1.put("account", account);
map1.put("logtype", logtype);
map1.put("logdate", logdate);
map1.put("starttime", starttime.replace("T", " "));
map1.put("endtime", endtime.replace("T", " "));
Integer count = null;
try {
list = sysLogInfoDao.listSysLogInfo(map);
count = sysLogInfoDao.getLogInfoCount(map1);
} catch (Exception e) {
e.printStackTrace();
}
Paging paging = new Paging(start, length, count, draw);
paging.setRecordsFiltered(count);
paging.setData(list);
return paging;
}
}
- Controller层
@Controller
@RequestMapping(value = "/sysLogInfoController")
public class SysLogInfoController {
@Autowired
private SysLogInfoService sysLogInfoService;
/**
* @param draw datatable传入参数,不作处理,返回即可
* @param account 将要查询的账户信息,支持模糊查询
* @param index 分页查询参数
* @param size 分页查询参数
* @param logtype 日志类型,1:单点日志;2.登录日志
* @param logdate 登录时间 YYYY-MM-DD
* @param starttime 开始时间,YYYY-MM-DD HH24:MI
* @param endtime 结束时间,YYYY-MM-DD HH24:MI
* @return
*/
@ResponseBody
@RequestMapping(value = "/listloginfo")
public Paging<SysLogInfo> logInfoPaging(Integer draw,
@RequestParam(value = "account",required = false) String account,
@RequestParam(value = "start",defaultValue = "1") Integer index,
@RequestParam(value = "length",defaultValue = "10") Integer size,
@RequestParam(value = "logtype",required = false) String logtype,
@RequestParam(value = "logdate",required = false) String logdate,
@RequestParam(value = "starttime",required = false) String starttime,
@RequestParam(value = "endtime",required = false) String endtime) {
Paging<SysLogInfo> paging = null;
try {
paging = sysLogInfoService.listLogInfo(account,logtype,logdate,starttime,endtime,index,size,draw);
} catch (Exception e) {
e.printStackTrace();
}
return paging;
}
}
- 结果:
{
"draw": 1,
"page": 0,
"length": 5, // 一页显示的数据条数
"recordsTotal": 44298,
"pages": 8860, // 总页数
"start": 5,
"start1": 1,
"end": 5,
// 获取到的数据
"data": [{
"party_account": "***********",
"access_date": "2018-07-03 16-48-28",
"response_date": "2018-07-03 16-48-29",
"log_type": null,
"app_id": "******************",
"menu_id": null,
"menu_name": null,
"phone_info": null,
"phone_unique": "FEB6A67E1A66C804360A4F748AA175",
"error_msg": "成功"
}, {
"party_account": "***********",
"access_date": "2018-07-03 16-42-30",
"response_date": "2018-07-03 16-42-30",
"log_type": null,
"app_id": "********************",
"menu_id": null,
"menu_name": null,
"phone_info": null,
"phone_unique": "B4DE97838E28B9EBB53839321A45EFE2",
"error_msg": "成功"
}, {
"party_account": "***********",
"access_date": "2018-07-03 16-42-27",
"response_date": "2018-07-03 16-42-27",
"log_type": null,
"app_id": "FF_LOGIN",
"menu_id": null,
"menu_name": null,
"phone_info": "AND",
"phone_unique": "****************",
"error_msg": null
}, {
"party_account": "***********",
"access_date": "2018-07-03 16-40-55",
"response_date": "2018-07-03 16-40-55",
"log_type": null,
"app_id": "***************",
"menu_id": null,
"menu_name": null,
"phone_info": null,
"phone_unique": "1F8C6EF7F3AA74B355E186D55759A02E",
"error_msg": "成功"
}, {
"party_account": "***********",
"access_date": "2018-07-03 16-40-48",
"response_date": "2018-07-03 16-40-48",
"log_type": null,
"app_id": "******************",
"menu_id": null,
"menu_name": null,
"phone_info": null,
"phone_unique": "D0ACBD4838A0F06759DDE2C1852379A4",
"error_msg": "成功"
}],
"recordsFiltered": 44298
}
前端
- 前端代码:
<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
<meta charset="utf-8"/>
<title>查询登录和单点日志</title>
<meta http-equiv="X-UA-Compatible" content="IE=edge"/>
<meta name="viewport" content="width=device-width, initial-scale=1"/>
<!-- 上述3个meta标签*必须*放在最前面,任何其他内容都*必须*跟随其后! -->
<title>Bootstrap 101 Template</title>
<link th:href="@{/css/bootstrap.min.css}" rel="stylesheet"/>
<link th:href="@{/css/jquery.dataTables.min.css}" rel="stylesheet"/>
<!-- jQuery (Bootstrap 的所有 JavaScript 插件都依赖 jQuery,所以必须放在前边) -->
<script th:src="@{/js/jquery.min.js}"></script>
<!-- 加载 Bootstrap 的所有 JavaScript 插件。你也可以根据需要只加载单个插件。 -->
<script th:src="@{/js/bootstrap.min.js}"></script>
<script th:src="@{/js/jquery.dataTables.min.js}"></script>
<style type="text/css">
.table > tbody > tr > td {
text-align: center;
}
/* dataTables表头居中 */
.table > thead:first-child > tr:first-child > th {
text-align: center;
}
</style>
</head>
<body>
<div class="container">
<div class="row clearfix">
<div class="col-md-12 column">
<ul class="nav nav-pills">
<li>
<a href="../">配置菜单应用</a>
<!--<a href="../sysMenuController/tomain">配置菜单应用</a>-->
</li>
<li>
<a href="../partyAppMenuController/listPartyAPPMenu">查询个人菜单</a>
</li>
<li class="">
<a href="../sysLogInfoController/tolistSysLogInfo">查询登陆和单点日志</a>
</li>
<li class="">
<a href="../sysVersionController/tolistSysVersion">查询和修改版本号</a>
</li>
<li class="">
<a href="../sjmhPartyAccountController/tolistsjmhPartyAccount">查询用户是否拥有手机门户角色权限</a>
</li>
</ul>
<hr/>
</div>
</div>
</div>
<div class="row clearfix">
<div class="col-md-12 column">
<p><span>员工账号:</span><input type="text" id="account" placeholder="输入员工账号"/><span>日志类型: </span><select
id="logtype">
<option value="">请选择</option>
<option value="1">单点日志</option>
<option value="2">登录日志</option>
</select></p>
<p><span>时间点: </span><input type="date" id="logdate"/></p>
<p><span>开始时间:</span><input type="datetime-local" id="starttime"/> <span>截止时间: <input
type="datetime-local" id="endtime"/></span></p>
<button type="button" class="btn btn-default btn-primary" onclick="search()">搜索</button>
</div>
</div>
<hr/>
<div class="row clearfix">
<div class="col-md-12 column">
<table id="table" class="table table-border table-hover table-bg table-sort cell-border" width="100%">
<thead>
<tr>
<th>员工信息</th>
<th>访问时间</th>
<th>响应时间</th>
<th>日志类型</th>
<th>APP_ID</th>
<th>菜单ID</th>
<th>菜单名称</th>
<th>手机操作系统信息</th>
<th>手机串号信息唯一标识</th>
<th>异常信息</th>
</tr>
</thead>
<thead></thead>
</table>
</div>
</div>
<script type="text/javascript" th:inline="javascript">
// 点击搜索按钮进行数据的渲染
function search() {
$("#table").dataTable().fnDraw();
}
$(document).ready(function () {
$("#table").DataTable({ //对表格控件进行初始化
ordering: false, // 关闭排序
searching: false, // 关闭插件自带的搜索,我们会自定义搜索
serverSide: true, //服务器模式
Processing: true, //是否显示“处理中...”
scrollX: true, //水平方向的滚动条
autoWidth : true, // 自动宽度
lengthMenu: [5, 10, 25, 50, 100], // 分页器的页数
ajax: {
//指定数据源
url: "../sysLogInfoController/listloginfo",
type: "POST",
// 这里向后端传递查询参数
data: function (d) {
d.account = $("#account").val().trim();
d.logtype = $("#logtype").val().trim();
d.logdate = $("#logdate").val().trim();
d.starttime = $("#starttime").val().trim();
d.endtime = $("#endtime").val().trim();
}
},
// 与<table>标签中的<th>标签内的字段对应
columns: [{
data: "party_account"
}, {
data: "access_date"
}, {
data: "response_date"
}, {
data: "log_type"
}, {
data: "app_id"
}, {
data: "menu_id"
}, {
data: "menu_name"
}, {
data: "phone_info"
}, {
data: "phone_unique"
}, {
data: "error_msg"
}],
// 语言
language: {
"sProcessing": "处理中...",
"sLengthMenu": "显示 _MENU_ 项结果",
"sZeroRecords": "没有匹配结果",
"sInfo": "显示第 _START_ 至 _END_ 项结果,共 _TOTAL_ 项",
"sInfoEmpty": "显示第 0 至 0 项结果,共 0 项",
"sInfoFiltered": "(由 _MAX_ 项结果过滤)",
"sInfoPostFix": "",
"sSearch": "搜索:",
"sUrl": "",
"sEmptyTable": "表中数据为空",
"sLoadingRecords": "载入中...",
"sInfoThousands": ",",
"oPaginate": {
"sFirst": "首页",
"sPrevious": "上页",
"sNext": "下页",
"sLast": "末页"
},
"oAria": {
"sSortAscending": ": 以升序排列此列",
"sSortDescending": ": 以降序排列此列"
}
}
});
});
</script>
</body>
</html>
- “显示第 1 至 5 项结果”,由后端传递的recordsFiltered所实现,
- “共 44,298 项”,由后端传递的recordsTotal所实现
结尾
在JQuery DataTables表格插件的功能上,我只使用的几个笔记重要的功能,其他没有明显显示的功能使用了默认值。具体参考DataTables官网,最好是英文官网。
查看项目源码,请下载:https://download.csdn.net/download/lhc_makefunny/10517685
如文章中出现错误的描述,请在下方留言,我会及时改正。