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Java easyui樹(shù)形表格TreeGrid的實(shí)現(xiàn)代碼

更新時(shí)間：2017年03月17日 08:32:03 作者：dKnightL

這篇文章主要為大家詳細(xì)介紹了Java easyui樹(shù)形表格TreeGrid的實(shí)現(xiàn)代碼，具有一定的參考價(jià)值，感興趣的小伙伴們可以參考一下

自己搞了一下午，終于用JAVA實(shí)現(xiàn)了數(shù)據(jù)網(wǎng)格。記錄一下實(shí)現(xiàn)的代碼。（PS：此處的easyui是1.5版本，樓主只貼了核心的代碼）

實(shí)現(xiàn)圖

JSP頁(yè)面

<head>
//權(quán)限列表
$( document ).ready(function(){
      var parentId = 0;
      $('#tt').treegrid({  
        url:'queryPrivilege.action?parentId='+parentId,  
        idField:'id',  
        treeField:'RecordStatus',
        columns:[[  
          {title:'id',field:'id',width:180}, 
          {field:'RecordStatus',title:'RecordStatus',width:180} ,
          {field:'PrivilegeOperation',title:'PrivilegeOperation',width:180}  
        ]],
        onBeforeExpand:function(row){
          //動(dòng)態(tài)設(shè)置展開(kāi)查詢(xún)的url
          $(this).treegrid('options').url = 'queryPrivilege.action?parentId='+row.id;  
        }
      }); 
    })
 </script>
 </head>
 <body>
<table id="tt" style="width:600px;height:400px"></table>
</body>

ACTION層代碼

  //輸出
    public PrintWriter out()throws IOException{
      HttpServletResponse response=ServletActionContext.getResponse(); 
      response.setContentType("text/html"); 
      response.setContentType("text/plain; charset=utf-8");
      PrintWriter out= response.getWriter();
      return out;
    }  
  public String queryPrivilege() throws IOException{
    returnpd="ok";
    JSONArray array =new JSONArray();    
    array = privilegeService.getMenu(parentId);
    String str=array.toString();
    out().print(str);
    out().flush();
    out().close();
    return returnpd;
  }

Service層接口代碼

JSONArray getMenu(int parentId);

ServiceImpl層代碼（實(shí)現(xiàn)service層）

@Override
  public JSONArray getMenu(int parentId) {
    // TODO Auto-generated method stub
    return (JSONArray)privilegeDao.getMenu(parentId);
  }

Dao層代碼

JSONArray getMenu(int parentId);

DaoImpl層代碼（實(shí)現(xiàn)Dao層）

  @Override
  public JSONArray getMenu(int parentId) {
    // TODO Auto-generated method stub
    String hql="";
    JSONArray array=new JSONArray();
    hql="FROM Privilege p WHERE p.parentID = "+parentId;
    for(Privilege privilege:(List<Privilege>)(getSession().createQuery(hql).list())){
      JSONObject jo=new JSONObject();
      jo.put("id", privilege.getId());
      jo.put("RecordStatus", privilege.getRecordStatus());
      jo.put("parendId",privilege.getParentID());
       if(privilege.getParentID()==0){
          jo.put("state","closed");        
        }
        else{
          jo.put("state","open");
          System.out.println(parentId);
        }
      array.add(jo);
    }
    return array;
  }

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