layui实现数据表格table分页功能（ajax异步）

layui实现数据表格table分页功能，异步加载，表格渲染，含条件查询。

一、引入layUI的相关资源

<link rel="stylesheet" href="${ctxPath}/vendor/layui/css/layui.css" rel="external nofollow" >
<script src="${ctxPath}/vender/layui/layui.js" charset="utf-8"></script>

二、html页面代码

搜索表单：

<div class="layui-row">
 <form class="layui-form layui-col-md12 we-search">
 项目搜索：
 <div class="layui-inline">
  <input type="text" name="projectName" id="projectName" placeholder="项目名称" autocomplete="off" class="layui-input">
 </div>
 <div class="layui-input-inline">
  <select name="businessOperatorId" id="businessOperatorId" lay-verify="" lay-search>
  <option value="">业务员</option>
  </select>
 </div>
 <div class="layui-input-inline">
  <select name="mftRepresentativeId" id="mftRepresentativeId" lay-verify="" lay-search>
  <option value="">厂家代表</option>
  </select>
 </div>
 <div class="layui-input-inline">
  <select name="channelId" id="channelId" lay-search>
  <option value="">渠道</option>
  </select>
 </div>
    <div class="layui-input-inline">
      <select name="customerId" id="customerId" lay-search>
        <option value="">客户</option>
      </select>
    </div>
    <div class="layui-input-inline">
      <select name="projectPhase" id="projectPhase" lay-search>
        <option value="">项目阶段</option>
      </select>
    </div>
    <div class="layui-input-inline">
      <select name="goodsCondition" id="goodsCondition" lay-search>
        <option value="">货物情况</option>
      </select>
    </div>
    <div class="layui-input-inline">
      <select name="implementCondition" id="implementCondition" lay-search>
        <option value="">实施情况</option>
      </select>
    </div>
    <div class="layui-input-inline">
      <select name="payCondition" id="payCondition" lay-search>
        <option value="">收款情况</option>
      </select>
    </div>

 <div class="layui-inline">
  <input class="layui-input" placeholder="开项时间" name="startTime" id="startTime">
 </div>
 <div class="layui-inline">
  <input class="layui-input" placeholder="结项时间" name="endTime" id="endTime">
 </div>
 <button class="layui-btn" lay-submit="" lay-filter="sreach"><i class="layui-icon"></i></button>
 </form>
</div>

数据表格:

<table class="layui-hide" id="projectList" lay-filter="projectList"></table>

三、后台接收分页参数以及查询条件，获取并返回数据

主要注意下:

page: 前台分页插件传入的当前页数，
limit: 前台分页插件传入的每页个数，
projectInfo ：接收前台传入的查询条件的实体
jsonResult ：后台返回的相关数据的响应实体

@ResponseBody
  @RequestMapping("/project/list")
  public JsonResult list(@RequestParam("page") Integer page, @RequestParam("limit") Integer size, ProjectInfoEntity projectInfo){

    JsonResult jsonResult = projectService.getProjectList(page,size,projectInfo);
    return jsonResult;
  }

后台响应类必须包含code与count字段，因为前台layui会自动获取

自定义后台数据响应实体 JsonResult：

package com.bhy702.jfkj.common.util;

/**
 * JSON结果响应
 *
 */
@Data
public class JsonResult {

  private static final String SUCCESS = "成功";
  private static final String ERROR = "失败";

  /**
   * 响应状态code，因为前台layui默认0为响应成功，所以此处默认为0
   */
  private Integer code = 0;

  /**
   * 数据总条数
   */
  private Long count = 0L;

 /**
   * 返回是否成功
   */
  private Boolean result = false;

  /**
   * 返回提示信息
   */
  private String msg = "";

  /**
   * 返回数据信息
   */
  private Object data;

  private JsonResult() {
  }

  /**
   * 成功的响应
   *
   * @return
   */
  public static JsonResult success() {
    return result(true, SUCCESS, null,null);
  }

  public static JsonResult success(String msg) {
    return result(true, msg, null,null);
  }

  public static JsonResult success(Object data) {
    return result(true, SUCCESS, data,null);
  }
  public static JsonResult success(Object data,Long count) {
    return result(true, SUCCESS, data,count);
  }

  public static JsonResult success(String msg, Object data) {
    return result(true, msg, data,null);
  }

  public static JsonResult success(String msg, Object data,Long count) {
    return result(true, msg, data,count);
  }

  /**
   * 失败的响应
   *
   * @return
   */
  public static JsonResult error() {
    return result(false, ERROR, null,null);
  }

  public static JsonResult error(String msg) {
    return result(false, msg, null,null);
  }

  public static JsonResult error(Object data) {
    return result(false, ERROR, data,null);
  }

  public static JsonResult error(Object data,Long count) {
    return result(false, ERROR, data,count);
  }

  public static JsonResult error(String msg, Object data) {
    return result(false, msg, data,null);
  }

  public static JsonResult error(String msg, Object data,Long count) {
    return result(false, msg, data,count);
  }

  public static JsonResult result(Boolean result, String msg, Object data,Long count) {
    JsonResult jsonResult = new JsonResult();
    jsonResult.setResult(result);
    jsonResult.setMsg(msg);
    jsonResult.setData(data);
    jsonResult.setCount(count);
    return jsonResult;
  }
}

四、渲染table表格数据

主要注意下:

elem: ‘#projectList': projectList为表格id，
page: true: 设置表格分页，
url: ‘/project/list' ：数据请求url
fixed: true:固定列
done : function(res, curr, count){…}:数据加载成功后的回调函数

var tableIns = table.render({
 elem: '#projectList',
 cellMinWidth: 150,
 url: '/project/list',
 cols: [
  [{
  // type: 'checkbox',fixed: 'left'
        checkbox: true, fixed: true
  }, {
  field: 'id',title: 'ID',align:'center',width:50,fixed: true
  }, {
  field: 'name',title: '项目名称',align:'center',fixed: true
  }, {
  field: 'businessOperatorStr',title: '经办人',align:'center',fixed: true
  }, {
  field: 'mftRepresentativeStr',title: '厂家代表',align:'center',fixed: true
  }, {
  field: 'channelStr',title: '渠道',align:'center',fixed: true
  }, {
  field: 'customerStr',title: '客户',align:'center',fixed: true
  }, {
        field: 'projectPhaseStr',title: '项目阶段',align:'center',fixed: true
  }, {
  field: 'amount',title: '金额',align:'center'
  }, {
  field: 'businessSource',title: '商机来源',align:'center'
  }, {
   field: 'mainProduct',title: '主要产品',align:'center'
  }, {
   field: 'productLineStr',title: '产品线',align:'center'
  }, {
   field: 'goodsConditionStr',title: '货物情况',align:'center'
  }, {
   field: 'implementConditionStr',title: '实施情况',align:'center'
  }, {
        field: 'payAmount',title: '已付金额',align:'center'
      }, {
   field: 'payConditionStr',title: '收款情况',align:'center'
  }, {
   field: 'startTime',title: '开项时间',align:'center'
      }, {
   field: 'endTime',title: '结项时间',align:'center'
      }, {
   field: 'remark',title: '备注',align:'center'
  }, {
   field: 'operate',title: '操作',toolbar: '#operateTpl',fixed: 'right',unresize: true
  }]
 ],
 id: 'testReload',
 // skin: 'row', //表格风格
 even: true, //隔行背景
 event: true,
 page: true,
    done : function(res, curr, count){
      $('#totalProjectNumber').text("共有数据："+count+" 条");
      table_data=res.data;
      layer.closeAll('loading');
      // layer.close(layer.index); //它获取的始终是最新弹出的某个层，值是由layer内部动态递增计算的
      // layer.close(index);  //返回数据关闭loading
    }
 });

五、监听搜索表单的提交事件,并重新渲染table表格数据

主要注意下:

sreach: 为搜索按钮的lay-filter=“sreach”，
where 中的数据对应搜索表单，为搜索的条件，后台使用这些条件进行筛选数据返回

form.on('submit(sreach)', function(data){

   layer.load();
    tableIns.reload({
  url:"/project/list",
  page: {
        curr: 1 //重新从第 1 页开始
      },
  where:{
  name:data.field.projectName,
        businessOperatorId:data.field.businessOperatorId,
  mftRepresentativeId:data.field.mftRepresentativeId,
  channelId:data.field.channelId,
        customerId:data.field.customerId,
        projectPhase:data.field.projectPhase,
        goodsCondition:data.field.goodsCondition,
        implementCondition:data.field.implementCondition,
        payCondition:data.field.payCondition,
        startTime:data.field.startTime,
        endTime:data.field.endTime
  }
    });

    return false; //阻止表单跳转。如果需要表单跳转，去掉这段即可。
  });

六、效果展示

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