layui和后端如何连起来(2)-木庄网络博客

java后台代码

@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());
       }

Layui工具类代码

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;
    }
}

PageUtils在这里可有可无，你们可以自行封装

@Data
public 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);
    }
}