Ztree异步树加载

最新推荐文章于 2025-08-15 22:56:20 发布

转载最新推荐文章于 2025-08-15 22:56:20 发布 · 74 阅读

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CC 4.0 BY-SA版权

原文链接：http://www.cnblogs.com/fxfly/p/4642221.html

文章标签：

#java #javascript #ViewUI

JSP代码片段

<%@ page language="java" contentType="text/html; charset=utf-8"
    pageEncoding="utf-8"%>
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<script type="text/javascript"
    src="${ctx}/thscommon/javascript/jquery-1.7.2.min.js"></script>
<script type="text/javascript"
    src="${ctx}/win/javascript/jquery.ztree.core-3.5.js"></script>
<link rel="stylesheet" href="${ctx}/win/css/zTreeStyle/zTreeStyle.css"
    type="text/css">
<title>Insert title here</title>

<script type="text/javascript">
    var setting = {
        /* check : {
            enable : true,
            chkStyle : "radio",
            radioType: "id"
        }, */
        async : {
            enable : true,
            url : "${ctx}/common/tree/river!getNodeData.action",
            autoParam : [ "id" ],
            dataFilter : filter
        },
        callback : {
            //beforeClick: beforeClick,
            onClick : onClick
        }
    };

    function filter(treeId, parentNode, childNodes) {
        if (!childNodes)
            return null;
        for ( var i = 0, l = childNodes.length; i < l; i++) {
            childNodes[i].name = childNodes[i].name.replace(/\.n/g, '.');
        }
        return childNodes;
    }

    function onClick(event, treeId, treeNode, clickFlag) {
        var win = art.dialog.open.origin;//来源页面
        win.snstSet(treeNode.id, treeNode.name,$("#idx").val());
        $.dialog.close();
    }

    $(document).ready(function() {
        $.fn.zTree.init($("#tree"), setting);
    });
//-->
</script>
</head>
<body>
    <div class="zTreeDemoBackground left">
        <ul id="tree" class="ztree"></ul>
    </div>
    <input type="hidden" id="idx" name="idx" value="${idx}">
</body>
</html>

action处理如下

public void getNodeData() {
		List<Map<String, Object>> nodedata = service.getNodes(this.getId());
		List<Map<String, Object>> list = new ArrayList<Map<String, Object>>();
		Map<String, Object> tmp = null;
		for (Map<String, Object> map : nodedata) {
			tmp = new HashMap<String, Object>();
			tmp.put("id", map.get("id"));
			tmp.put("name", map.get("name"));
			tmp.put("isParent",
					Integer.valueOf(map.get("cnt").toString()) > 0 ? true
							: false);
			list.add(tmp);
		}
		try {
			PrintWriter out;
			JSONObject jo = new JSONObject();
			response.setCharacterEncoding("gbk");
			response.setContentType("text/html; charset=GBK");
			out = response.getWriter();
			System.out.println(JSONArray.fromObject(list).toString());
			out.print(JSONArray.fromObject(list).toString());
			out.close();
		} catch (IOException e) {
			e.printStackTrace();
		}
	}

　　Service处理如下

public List<Map<String, Object>> getNodes(String id) {
		return dao.getNodes(id);
	}

　　Dao处理如下

public List<Map<String, Object>> getNodes(String id) {
		List<String> params = new ArrayList<String>();
		StringBuffer querySQL = new StringBuffer();
		querySQL.append("SELECT tt.wsystemcode id,tt.wsystemname name");
		querySQL.append(",(SELECT COUNT (1) cnt FROM datacenter_v3.tcode.t_cod_wsystem t WHERE t.parentcode = tt.wsystemcode) cnt");
		querySQL.append(" FROM datacenter_v3.tcode.t_cod_wsystem tt");
		querySQL.append(" WHERE 1=1");
		if(Tool.isNull(id)){
			querySQL.append(" and tt.parentcode is null");
		}else{
			querySQL.append(" and tt.parentcode = ?");
			params.add(id);
		}
		querySQL.append(" GROUP BY tt.wsystemcode,tt.wsystemname");
		querySQL.append(" ORDER BY tt.wsystemcode");
		
		return search(querySQL.toString(), params.toArray());
	}

转载于:https://www.cnblogs.com/fxfly/p/4642221.html