Layui前后台交互数据获取java实例

<link rel="stylesheet" href="static/layui/css/layui.css" rel="external nofollow" media="all" /><script type="text/javascript" src="static/layui/layui.js"></script><table class="layui-hide" id="test" lay-filter="table"></table>

layui.use(['form','layer','table'], function(){   var table = layui.table   ,form = layui.form,$=layui.$;   table.render({   elem: '#test' //绑定table id   ,url:'sys/menu/list' //数据请求路径   ,cellMinWidth: 80   ,cols: [[    {type:'numbers'}    ,{field:'name', title:'菜单名称'}    ,{field:'parentName', title:'父菜单名称',width:150}    ,{field:'url', title: '菜单路径'}    ,{field:'perms', title: '菜单权限'}    ,{field:'type', title:'类型'}    ,{field:'icon', title:'图标'}    ,{field:'orderNum', title:'排序'}    ,{fixed: 'right',title: '操作', width:180,  align:'center', toolbar: '#toolBar'}//一个工具栏 具体请查看layui官网   ]]   ,page: true //开启分页   ,limit:10 //默认十条数据一页   ,limits:[10,20,30,50] //数据分页条   ,id: 'testReload'    });});

 @RequestMapping("/list")  @ResponseBody  @RequiresPermissions("sys:menu:list")  public Layui list(@RequestParam Map<String, Object> params){   //查询列表数据   Query query = new Query(params);   List<SysMenuEntity> menuList = sysMenuService.queryList(query);   int total = sysMenuService.queryTotal(query);   PageUtils pageUtil = new PageUtils(menuList, total, query.getLimit(), query.getPage());   return Layui.data(pageUtil.getTotalCount(), pageUtil.getList());  }

public class Layui extends HashMap<String, Object> { public static Layui data(Integer count,List<?> data){  Layui r = new Layui();  r.put("code", 0);  r.put("msg", "");  r.put("count", count);  r.put("data", data);  return r; }}

@Datapublic class PageUtils implements Serializable { private static final long serialVersionUID = -1202716581589799959L; //总记录数 private int totalCount; //每页记录数 private int pageSize; //总页数 private int totalPage; //当前页数 private int currPage; //列表数据 private List<?> list; /**  * 分页  * @param list  列表数据  * @param totalCount 总记录数  * @param pageSize 每页记录数  * @param currPage 当前页数  */ public PageUtils(List<?> list, int totalCount, int pageSize, int currPage) {  this.list = list;  this.totalCount = totalCount;  this.pageSize = pageSize;  this.currPage = currPage;  this.totalPage = (int)Math.ceil((double)totalCount/pageSize); }}