JAVA_树状表格分页(layUI、treeTable.js)
效果图展示(PS:本人很懒，刚开始想在网上随意找一个就用，后来发现好像PHP的不少，JAVA的树状表格大多数跟我开始写的一样没有分页，导致数据量过大后加载过于缓慢被客户吐糟，最后没找到合适的就自己写了一个简单的demo，不嫌弃的话可以自己再改改样式)
准备：layUI、treeTable.js
代码展示：
@RequestMapping(params = "list")
public ModelAndView list(HttpServletRequest request) {
int total = 0;// 一级机构总数
// 获取一级机构总数
String sql_total = "select count(1) total from t_s_depart where org_type = '1'";
List> list_total = systemService.findForJdbc(sql_total);
if(!ListUtils.isNullOrEmpty(list_total)){
for (Map map : list_total) {
total = Integer.parseInt(map.get("total")==null?"0":map.get("total").toString());
}
}
request.setAttribute("total", total);
return new ModelAndView("com/szerp/department/tSDepartListNew");
}
@RequestMapping(params = "getDataNew")
@ResponseBody
public List getDataNew(HttpServletRequest request, HttpServletResponse response) throws IOException{
int page = request.getParameter("curr")==null?1:Integer.parseInt(request.getParameter("curr").toString());
int limit = request.getParameter("limit")==null?1:Integer.parseInt(request.getParameter("limit").toString());
// 分页数据
String sql_data = "select id,departname,description,parentdepartid,org_code,org_type,mobile,fax,address,depart_order from (select rownum num,d.* from t_s_depart d where d.org_type = '1') where num > "+((page-1)*limit)+" and num <= "+(page*limit);
List> list_data = systemService.findForJdbc(sql_data);
List listDepart = new ArrayList();
String ids = "";
if(!ListUtils.isNullOrEmpty(list_data)){
for (Map map : list_data) {
ids = ids + "'" + (map.get("ID")==null?"":map.get("ID").toString()) + "',";
TSDepartEntity tSDepart = new TSDepartEntity();
tSDepart.setId(map.get("ID")==null?"":map.get("ID").toString());
tSDepart.setDepartname(map.get("DEPARTNAME")==null?"":map.get("DEPARTNAME").toString());
tSDepart.setDescription(map.get("DESCRIPTION")==null?"":map.get("DESCRIPTION").toString());
tSDepart.setParentdepartid(map.get("PARENTDEPARTID")==null?"":map.get("PARENTDEPARTID").toString());
tSDepart.setOrgCode(map.get("ORG_CODE")==null?"":map.get("ORG_CODE").toString());
tSDepart.setOrgType(map.get("ORG_TYPE")==null?"":map.get("ORG_TYPE").toString());
tSDepart.setMobile(map.get("MOBILE")==null?"":map.get("MOBILE").toString());
tSDepart.setFax(map.get("FAX")==null?"":map.get("FAX").toString());
tSDepart.setAddress(map.get("ADDRESS")==null?"":map.get("ADDRESS").toString());
tSDepart.setDepartOrder(map.get("DEPART_ORDER")==null?"":map.get("DEPART_ORDER").toString());
listDepart.add(tSDepart);
}
}
ids = "("+ids.substring(0, ids.length()-1)+")";
String sql = "select id,departname,description,parentdepartid,org_code,org_type,mobile,fax,address,depart_order from t_s_depart where parentdepartid in"+ids;
List> list_data2 = systemService.findForJdbc(sql);
if(!ListUtils.isNullOrEmpty(list_data2)){
return getNext(listDepart, list_data2, ids);
}
return listDepart;
}
public List getNext(List listDepart, List> list_data2, String ids){
String ids_ = "";
for (Map map : list_data2) {
ids_ = ids_ + "'" + (map.get("ID")==null?"":map.get("ID").toString()) + "',";
TSDepartEntity tSDepart = new TSDepartEntity();
tSDepart.setId(map.get("ID")==null?"":map.get("ID").toString());
tSDepart.setDepartname(map.get("DEPARTNAME")==null?"":map.get("DEPARTNAME").toString());
tSDepart.setDescription(map.get("DESCRIPTION")==null?"":map.get("DESCRIPTION").toString());
tSDepart.setParentdepartid(map.get("PARENTDEPARTID")==null?"":map.get("PARENTDEPARTID").toString());
tSDepart.setOrgCode(map.get("ORG_CODE")==null?"":map.get("ORG_CODE").toString());
tSDepart.setOrgType(map.get("ORG_TYPE")==null?"":map.get("ORG_TYPE").toString());
tSDepart.setMobile(map.get("MOBILE")==null?"":map.get("MOBILE").toString());
tSDepart.setFax(map.get("FAX")==null?"":map.get("FAX").toString());
tSDepart.setAddress(map.get("ADDRESS")==null?"":map.get("ADDRESS").toString());
tSDepart.setDepartOrder(map.get("DEPART_ORDER")==null?"":map.get("DEPART_ORDER").toString());
listDepart.add(tSDepart);
}
ids_ = "("+ids_.substring(0, ids_.length()-1)+")";
String sql = "select id,departname,description,parentdepartid,org_code,org_type,mobile,fax,address,depart_order from t_s_depart where parentdepartid in"+ids_;
List> list = systemService.findForJdbc(sql);
if(!ListUtils.isNullOrEmpty(list)){
getNext(listDepart, list, ids_);
}
return listDepart;
} treeTable.js代码如下：
layui.define(['jquery'], function(exports) {
var MOD_NAME = 'treeTable',
o = layui.jquery,
tree = function() {};
tree.prototype.config = function() {
return {
top_value: 0,
primary_key: 'id',
parent_key: 'parentdepartid',
hide_class: 'layui-hide',
icon: {
open: 'layui-icon layui-icon-triangle-d',
close: 'layui-icon layui-icon-triangle-r',
left: 16,
},
cols: [],
checked: {},
is_click_icon: false,
is_checkbox: false,
is_cache: true,
};
}
tree.prototype.template = function(e) {
var t = this,
level = [],
tbody = '',
is_table = o('table' + e.elem).length || !(e.is_click_icon = true),
checkbox = e.is_checkbox ? '' : '',
checked = checkbox ? checkbox.replace('cbx', 'cbx layui-form-checked') : '',
thead = checkbox && '' + (o.inArray(e.top_value, e.checked.data) > -1 ? checked : checkbox) + ' ';
o.each(t.data(e, e.data), function(idx, item) {
var tr = '',
is_checked = false,
hide_class = (item[e.parent_key] == e.top_value) || (item[e.parent_key] == t.cache(e, item[e.parent_key])) ? '' : e.hide_class;
// 设置每行数据层级
item.level = level[item[e.primary_key]] = item[e.parent_key] != e.top_value ? (level[item[e.parent_key]] + 1) : 0;
// 设置是否为最后一级
item.is_end = !e.childs[item[e.primary_key]];
o.each(e.cols, function(index, obj) {
var style = '';
obj.width && (style += 'width:' + obj.width + ';'), obj.align && (style += 'text-align:' + obj.align + ';'), style && (style = 'style="' + style + '"');
// 标记设置行checkbox选中
if(e.is_checkbox && e.checked && o.inArray(item[e.checked.key], e.checked.data) > -1) {
is_checked = true;
}
// 第一次遍历头部的时候拼接表格头部
idx || (thead += '' + obj.title + ' ');
// 指定列加入开启、关闭小图标
var icon = (obj.key == e.icon_key && !item.is_end) ? '' : '';
// 指定列小图标按照层级向后位移
var left = (obj.key == e.icon_key ? level[item[e.primary_key]] * e.icon.left + 'px' : '');
icon = icon.replace('>', ' style="margin-left:' + left + ';">');
// 拼接行
tr += '' + icon + (is_table ? '' : (is_checked ? checked : checkbox)) + (obj.template ? obj.template(item) : item[obj.key]) + ' ';
});
var box = is_table ? o(is_checked ? checked : checkbox).wrap('').parent().prop('outerHTML') : '';
tbody += ' ';
});
// 处理表树和树的赋值模板
var table = is_table ? '' + thead + ' ' + tbody + '' : tbody.replace(//g, 'ul>').replace(//g, 'li>');
// 确认点击图标或点击列触发展开关闭
var click_btn = e.is_click_icon ? '[data-down] i:not(.layui-icon-ok)' : '[data-down]';
// 模板渲染并处理点击展开收起等功能
o(e.elem).html(table).off('click', click_btn).on('click', click_btn, function() {
var tr = o(this).parents('[data-id]'),
td = tr.find('[data-down]'),
id = tr.data('id'),
parentdepartid = tr.data('parentdepartid'),
is_open = (td.find('i:not(.layui-icon-ok)').attr('class') == e.icon.close);
if(is_open) {
// 展开子级（子级出现、更改图标）
td.find('i:not(.layui-icon-ok)').attr('class', e.icon.open);
td.parents(e.elem).find('[data-parentdepartid=' + id + ']').removeClass(e.hide_class);
t.cache(e, id, true);
} else {
// 关闭子级（更改图标、隐藏所有子孙级）
td.find('i:not(.layui-icon-ok)').attr('class', e.icon.close);
t.childs_hide(e, id);
}
// 设置监听展开关闭
layui.event.call(this, MOD_NAME, 'tree(flex)', {
elem: this,
item: e.childs[parentdepartid][id],
table: e.elem,
is_open: is_open,
})
}).off('click', '.cbx').on('click', '.cbx', function() {
var is_checked = o(this).toggleClass('layui-form-checked').hasClass('layui-form-checked'),
tr = o(this).parents('[data-id]'),
id = tr.data('id'),
parentdepartid = tr.data('parentdepartid');
t.childs_checkbox(e, id, is_checked);
t.parents_checkbox(e, parentdepartid);
// 设置监听checkbox选择
layui.event.call(this, MOD_NAME, 'tree(box)', {
elem: this,
item: parentdepartid === undefined ? {} : e.childs[parentdepartid][id],
table: e.elem,
is_checked: is_checked,
})
}).off('click', '[lay-filter]').on('click', '[lay-filter]', function() {
var tr = o(this).parents('[data-id]'),
id = tr.data('id'),
parentdepartid = tr.data('parentdepartid'),
filter = o(this).attr("lay-filter");
return layui.event.call(this, MOD_NAME, 'tree(' + filter + ')', {
elem: this,
item: e.childs[parentdepartid][id],
})
});
e.end && e.end(e);
};
// 同级全部选中父级选中/同级全部取消取消父级
tree.prototype.parents_checkbox = function(e, parentdepartid) {
var po = o(e.elem).find('[data-parentdepartid=' + parentdepartid + ']'),
co = o(e.elem).find('[data-id=' + parentdepartid + ']'),
len = o(e.elem).find('[data-parentdepartid=' + parentdepartid + '] .cbx.layui-form-checked').length;
if(po.length == len || len == 0) {
var parentdepartid = co.data('parentdepartid');
len ? co.find('.cbx').addClass('layui-form-checked') : co.find('.cbx').removeClass('layui-form-checked');
parentdepartid === undefined || this.parents_checkbox(e, parentdepartid);
}
};
// 子级反选
tree.prototype.childs_checkbox = function(e, id, is_checked) {
var t = this;
o(e.elem).find('[data-parentdepartid=' + id + ']').each(function() {
var checkbox = o(this).find('.cbx');
is_checked ? checkbox.addClass('layui-form-checked') : checkbox.removeClass('layui-form-checked');
t.childs_checkbox(e, o(this).data('id'), is_checked);
})
};
// 点击收起循环隐藏子级元素
tree.prototype.childs_hide = function(e, id) {
var t = this;
t.cache(e, id, false);
o(e.elem).find('[data-parentdepartid=' + id + ']:not(.' + e.hide_class + ')').each(function() {
var td = o(this).find('[data-down]'),
i = td.find('i:not(.layui-icon-ok)');
// 关闭更换小图标
i.length && i.attr('class', e.icon.close);
// 隐藏子级
td.parents(e.elem).find('[data-parentdepartid=' + id + ']').addClass(e.hide_class);
t.childs_hide(e, o(this).data('id'))
});
};
// 重新组合数据，父子级关系跟随
tree.prototype.data = function(e) {
var lists = [],
childs = [];
o.each(e.data, function(idx, item) {
lists[item[e.primary_key]] = item;
if(!childs[item[e.parent_key]]) {
childs[item[e.parent_key]] = [];
}
childs[item[e.parent_key]][item[e.primary_key]] = item;
});
e.childs = childs;
return this.tree_data(e, lists, e.top_value, []);
};
tree.prototype.tree_data = function(e, lists, parentdepartid, data) {
var t = this;
if(lists[parentdepartid]) {
data.push(lists[parentdepartid]);
delete lists[parentdepartid]
}
o.each(e.data, function(index, item) {
if(item[e.parent_key] == parentdepartid) {
data.concat(t.tree_data(e, lists, item[e.primary_key], data))
}
});
return data;
};
tree.prototype.render = function(e) {
var t = this;
e = o.extend(t.config(), e);
if(e.url) {
o.get(e.url, function(res) {
e.data = res;
t.template(e);
})
} else {
t.template(e);
}
return e;
};
// 获取已选值集合
tree.prototype.checked = function(e) {
var ids = [];
o(e.elem).find('.cbx.layui-form-checked').each(function() {
var id = o(this).parents('[data-id]').data('id');
ids.push(id);
})
return ids;
};
// 全部展开
tree.prototype.openAll = function(e) {
var t = this;
o.each(e.data, function(idx, item) {
item[e.primary_key] && t.cache(e, item[e.primary_key], true);
})
t.render(e);
}
// 全部关闭
tree.prototype.closeAll = function(e) {
localStorage.setItem(e.elem.substr(1), '');
this.render(e);
}
tree.prototype.on = function(events, callback) {
return layui.onevent.call(this, MOD_NAME, events, callback)
};
// 存储折叠状态
tree.prototype.cache = function(e, val, option) {
if(!e.is_cache) {
return false;
}
var t = this,
name = e.elem.substr(1),
val = val.toString(),
cache = localStorage.getItem(name) ? localStorage.getItem(name).split(',') : [],
index = o.inArray(val, cache);
if(option === undefined) {
return index == -1 ? false : val
}
if(option && index == -1) {
cache.push(val)
}
if(!option && index > -1) {
cache.splice(index, 1)
}
localStorage.setItem(name, cache.join(','));
};
var tree = new tree();
exports(MOD_NAME, tree)
});
更改父级ID字段时，别忘记treeTable.js中也要一同更改哦（以上展示代码为初版demo,若需使用建议优化，还有不要跟我一样不是正式发行版代码就不写备注）
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