Java返回json数据

ACtion代码：

public class PedigreeAction extends BaseAction{
	public PedigreeQueryBO pedigreeQueryBO;

	public void setPedigreeQueryBO(PedigreeQueryBO pedigreeQueryBO) {
		this.pedigreeQueryBO = pedigreeQueryBO;
	}

	@SuppressWarnings("unchecked")
	public String getPedigreeDetail(){
		String zch = request.getParameter("zch");
		Map<String,List> map = new HashMap<String,List>();
		//获取企业（机构）登记信息
		List<FrkGsjQyjgdjxx> qydjList = this.pedigreeQueryBO.queryQyjgdjxx(zch);
		if(qydjList != null)
		{
			map.put("qydjxx", qydjList);
			request.setAttribute("qymc", qydjList.get(0).getQyjgmc());
		}
		
		//获取法人股东对外投资信息
		List<GdDwtzShowBean> frGdDwtzList = new ArrayList();
		if(gdList != null)
		{
			map.put("gdxx", gdList); 
			for(int i=0;i<gdList.size();i++){
				//自然人
				if(gdList.get(i).getTzrbz().equals("1"))
				{
					List<FrkGsjQyjgdjxx> zrrGdDwtz = this.pedigreeQueryBO.queryZrrGdDwtz(zch, gdList.get(i).getTzr(), gdList.get(i).getZjlx(), gdList.get(i).getZjhm());
					if(zrrGdDwtz != null)
					{
						for(int j=0;j<zrrGdDwtz.size();j++){
							GdDwtzShowBean showBean = new GdDwtzShowBean();
							showBean.setQymc(zrrGdDwtz.get(j).getQyjgmc());
							showBean.setTzr(gdList.get(i).getTzr());
							zrrGdDwtzList.add(showBean);
						}
					}
				}else if(gdList.get(i).getTzrbz().equals("2"))//非自然人
				{
					List<FrkGsjQyjgdjxx> frGdDwtz = this.pedigreeQueryBO.queryFrGdDwtz(zch, gdList.get(i).getTzr(), gdList.get(i).getZzlx(), gdList.get(i).getZzbh());
					if(frGdDwtz != null)
					{
						for(int j=0;j<frGdDwtz.size();j++){
							GdDwtzShowBean showBean = new GdDwtzShowBean();
							showBean.setQymc(frGdDwtz.get(j).getQyjgmc());
							showBean.setTzr(gdList.get(i).getTzr());
							zrrGdDwtzList.add(showBean);
						}
					}
				}
			}
			map.put("zrrGdDwtz", zrrGdDwtzList); 
			map.put("frGdDwtz", frGdDwtzList); 
		}
		//节点展示Json串
		List<Map<String,String>> newNodes = this.execNodes(map);
		JSONArray jsonDataNodes = JSONArray.fromObject(newNodes); 
		request.setAttribute("jsonDataNodes", jsonDataNodes);
		//关系展示Json串
		List<Map<String,String>> newLink = this.execLink(map);
		JSONArray jsonDataLink= JSONArray.fromObject(newLink); 
		request.setAttribute("jsonDataLink", jsonDataLink);
		return "success";
	}

	/**
	 * <p>Method ：execNodes
	 * <p>Description : 获取节点展示Json串
	 *
	 * @param map
	 * @return 
	 */
	@SuppressWarnings("unchecked")
	private  List<Map<String, String>> execNodes(Map<String, List> map){
		List<Map<String,String>> newTzrList = new ArrayList<Map<String,String>>();
        
		//企业对外投资节点展示
		if(map.get("zyryxx") != null)
		{
			List<FrkGsjQyjgdjxx> zyryList = map.get("qydwtz");
			for(int i=0;i<zyryList.size();i++){
				Map<String,String> mapshow = new HashMap<String, String>();
				mapshow.put("category", "1");
				mapshow.put("name", zyryList.get(i).getQyjgmc());
				mapshow.put("value", "11");
				newTzrList.add(mapshow);
			}
		}
		//主要人员对外投资节点展示信息
		if(map.get("zyryDwtz") != null)
		{
			List zyryDwtzList = map.get("zyryDwtz");
			for(int i=0;i<zyryDwtzList.size();i++){
				Map<String,String> mapshow = new HashMap<String, String>();
				mapshow.put("category", "6");
				mapshow.put("name", ((Zyryjzxx)zyryDwtzList.toArray()[i]).getQyjgmc());
				mapshow.put("value", "11");
				newTzrList.add(mapshow);
			}
		}
      
		//股东节点展示信息
		if(map.get("gdxx")!=null)
		{
			List<FrkGsjTzrczxx> gdList = map.get("gdxx");
			for(int i=0;i<gdList.size();i++){
				Map<String,String> mapshow = new HashMap<String, String>();
				mapshow.put("category", "3");
				mapshow.put("name", gdList.get(i).getTzr()+" ");
				mapshow.put("value", "11");
				newTzrList.add(mapshow);
			}
		}
		//自然人股东对外投资节点展示信息
		if(map.get("zrrGdDwtz")!=null)
		{
			List<GdDwtzShowBean> zrrGdDwtzList = map.get("zrrGdDwtz");
			for(int i=0;i<zrrGdDwtzList.size();i++){
				Map<String,String> mapshow = new HashMap<String, String>();
				mapshow.put("category", "4");
				mapshow.put("name", zrrGdDwtzList.get(i).getQymc());
				mapshow.put("value", "11");
				newTzrList.add(mapshow);
			}
		}
		//法人股东对外投资节点展示信息
		if(map.get("frGdDwtz")!=null)
		{
			List<GdDwtzShowBean> frGdDwtzList = map.get("frGdDwtz");
			for(int i=0;i<frGdDwtzList.size();i++){
				Map<String,String> mapshow = new HashMap<String, String>();
				mapshow.put("category", "4");
				mapshow.put("name", frGdDwtzList.get(i).getQymc());
				mapshow.put("value", "11");
				newTzrList.add(mapshow);
			}
		}
		return newTzrList;
	}
	/**
	 * <p>Method ：execLink
	 * <p>Description : 获取关系展示Json串
	 *
	 * @param tzrjczList
	 * @return 	 
	 */
	@SuppressWarnings("unchecked")
	private List<Map<String,String>>  execLink(Map<String, List> map){
		List<Map<String,String>> newTzrList = new ArrayList<Map<String,String>>();
		String qymc = "";
		//根节点信息获取
		if(map.get("qydjxx") != null)
		{
			List<FrkGsjQyjgdjxx> qydjList = map.get("qydjxx");
			qymc = qydjList.get(0).getQyjgmc();
		}
		//企业对外投资
        if(map.get("qydwtz") != null)
        {
            List<FrkGsjQyjgdjxx> fzjgxx = map.get("qydwtz");
            List<FrkGsjQyjgdjxx> qydjList = map.get("qydjxx");
			qymc = qydjList.get(0).getQyjgmc();
            for(int i=0;i<fzjgxx.size();i++){
                Map<String,String> mapshow = new HashMap<String, String>();
                mapshow.put("source",qymc);
                mapshow.put("target",fzjgxx.get(i).getQyjgmc() );
                mapshow.put("weight", "2 ");
                mapshow.put("name", "企业对外投资");
                newTzrList.add(mapshow);
            }
        }
        
		//股东关系展示信息
		if(map.get("gdxx")!=null)
		{
			List<FrkGsjTzrczxx> gdList = map.get("gdxx");
			for(int i=0;i<gdList.size();i++){
				Map<String,String> mapshow = new HashMap<String, String>();
				mapshow.put("source", gdList.get(i).getTzr()+" ");
				mapshow.put("target", qymc);
				mapshow.put("weight", "1");
				mapshow.put("name", "股东");
				newTzrList.add(mapshow);
			}
		}
		//自然人股东对外投资关系展示信息
		if(map.get("zrrGdDwtz")!=null)
		{
			List<GdDwtzShowBean> zrrGdDwtzList = map.get("zrrGdDwtz");
			for(int i=0;i<zrrGdDwtzList.size();i++){
				Map<String,String> mapshow = new HashMap<String, String>();
				mapshow.put("source", zrrGdDwtzList.get(i).getTzr());
				mapshow.put("target", zrrGdDwtzList.get(i).getQymc());
				mapshow.put("weight", "1");
				mapshow.put("name", "股东对外投资");
				newTzrList.add(mapshow);
			}
		}
		//法人股东对外投资关系展示信息
		if(map.get("frGdDwtz")!=null)
		{
			List<GdDwtzShowBean> frGdDwtzList = map.get("frGdDwtz");
			for(int i=0;i<frGdDwtzList.size();i++){
				Map<String,String> mapshow = new HashMap<String, String>();
				mapshow.put("source", frGdDwtzList.get(i).getTzr());
				mapshow.put("target", frGdDwtzList.get(i).getQymc());
				mapshow.put("weight", "1");
				mapshow.put("name", "股东对外投资");
				newTzrList.add(mapshow);
			}
		}
		return newTzrList;
	}
}

前台接收：

<%
	String zch = request.getParameter("zch");
%>
<%@ page language="java" import="net.sf.json.JSONArray" %>
<% 
    String jsonDataNodes = String.valueOf(request.getAttribute("jsonDataNodes")).replace("[","");
	JSONArray jsonDataLink = (JSONArray)request.getAttribute("jsonDataLink");
%>