easyui树节点拖拽排序的存储过程

easyui树的拖拽排序功能

easyui树中有拖拽功能

树结构如下：

一个行政区域对应一个单位，一个单位对应多个部门，每个部门下有相关人员，功能要求：

（1）行政区域没有子节点，点击text加载部门；（2）点击部门的text,如果有下级部门则加载部门，没有则加载人员；（3）树都有拖拽排序功能

1、前台页面：

<script type="text/javascript" src = "js/lib/jquery-1.8.0.min.js"></script><script type="text/javascript" src = "js/lib/jquery.easyui.min.js"></script>

<div data-options="region:'center'">     <ul id="orgs_tree" class="easyui-tree" ></ul></div>

var $orgs_tree = $("#orgs_tree").tree(orgs_tree_default);

var orgs_tree_default = {url : 'servlet/SearchServlet?dispatch=0',animate : true,onClick:function(node){var url = "servlet/SearchServlet?dispatch=1";//默认加载地区的树var isDeptTree = false;var unit_id ;//根据行政区划获取单位列表$.getJSON(url,{regions_id:node.attributes.regions_id},function(data){if(data.length > 1){}else if(data.length == 0){}else{//点击部门树的text,加载树$("#dept_tree").tree({              url:"servlet/SearchServlet?dispatch=2&unit_id=" + unit_id+"&id=0",  //默认加载部门的树     onBeforeExpand:function(node,param){              $("#dept_tree").tree("options").url="servlet/SearchServlet?dispatch=2&unit_id=" + unit_id+"&id="+node.id;       },        onSelect:function(node){//当点击text的时候，展开子节点         $(this).tree("expand",node.target);        }    });  }});},onDrop:function(target, source, point){ //行政区域树的拖拽功能var node = $("#orgs_tree").tree("getNode",target); // 将DOM对象转换为node//组装参数var param = {//目标节点属性targetId : node.attributes.regions_id ,targetSort : node.attributes.regions_sort ,//源节点属性sourceId : source.attributes.regions_id , sourceSort : source.attributes.regions_sort,//操作方式3种，append:变更父节点，top:平级-上 bottom:平级-下point : point};//更新数据库，这个后台需要用到存储过程var url = "servlet/ManagerServlet?dispatch=0";$.post(url,param,function(data){alert("success");});}};

2、java后台调用方法

public String dragRegionsSort(int target_id, int target_sort,int source_id, int source_sort,String operation) {String result = "排序成功";conn= this.getConnection();CallableStatement statement = conn.prepareCall("{call PRO_UPDATE_REGION_SORT(?,?,?,?,?)}");try {statement.setInt(1, target_id);statement.setInt(2, target_sort);statement.setInt(3, source_id);statement.setInt(4, source_sort);statement.setString(5, operation);statement.execute();} catch (SQLException e) {// TODO Auto-generated catch blocke.printStackTrace();}return result ;}

3、存储过程

create or replace procedure "PRO_UPDATE_REGION_SORT"(       target_id in number,--目标id       target_sort in number,--目标排序号       source_id in number,     --源id       source_sort in number , --源排序号       operation  in varchar2     --操作类型，之前还是之后)as p_tid   number;  p_sid  number ; begin  select regions_id into p_tid from tbl_regions t where t.regions_id = target_id;  select regions_id into p_sid from tbl_regions t where t.regions_id = source_id;  dbms_output.put_line('---目标id--'||p_tid||'---源id---'||p_sid);  if target_sort - source_sort = 1 then       if operation = 'top' then        null;      else        update tbl_regions t set t.regions_sort = target_sort WHERE t.regions_id = source_id ;        update tbl_regions t set t.regions_sort = source_sort WHERE t.regions_id = target_id ;      end if ;   elsif target_sort - source_sort = -1 then      if operation = 'top' then        update tbl_regions t set t.regions_sort = target_sort WHERE t.regions_id = source_id ;        update tbl_regions t set t.regions_sort = source_sort WHERE t.regions_id = target_id ;         else        null;      end if;    elsif target_sort - source_sort < -1 then      if operation = 'top' then               update tbl_regions t set t.regions_sort = t.regions_sort + 1 where t.regions_sort >= target_sort and t.regions_sort < source_sort;        update tbl_regions t set t.regions_sort = target_sort where t.regions_id = source_id ;        dbms_output.put_line('---排序前目标sort--'||target_sort||'---源sort---'||source_sort);        dbms_output.put_line('---排序后目标sort--'||target_sort||'---源sort---'||source_sort);      else        update tbl_regions t set t.regions_sort = t.regions_sort + 1 where t.regions_sort > target_sort and t.regions_sort < source_sort;        update tbl_regions t set t.regions_sort = target_sort+1 where t.regions_id = source_id ;      end if ;    elsif target_sort - source_sort > 1 then      if operation =  'top' then        update tbl_regions t set t.regions_sort = t.regions_sort - 1 where t.regions_sort > source_sort and t.regions_sort < target_sort;        update tbl_regions t set t.regions_sort = target_sort - 1 where t.regions_id = source_id ;       else         update tbl_regions t set t.regions_sort = t.regions_sort - 1 where t.regions_sort > source_sort and t.regions_sort <= target_sort;        update tbl_regions t set t.regions_sort = target_sort where t.regions_id = source_id ;      end if;    end if;end;