public class LeftTreeBean {

     public StringBuilder getTreeMenus(List lst, String contextPath) {

         StringBuilder model = new StringBuilder("");

         String RightName = "";

         String RightURL = "";

         Map rightMap = new HashMap();

 //        for (RightObject ro : (ArrayList) lst) {

         for (Object ro : lst) {

             ro = (RightObject)ro;

             String parentId = ((RightObject) ro).getParentID();

             if ((parentId == null) || (parentId.trim().length() == 0)

                     || (parentId.equalsIgnoreCase("0"))) {

                 parentId = "0";

             }

             if (!rightMap.containsKey(parentId)) {

                 rightMap.put(parentId, new ArrayList());

             }

             ((List) rightMap.get(parentId)).add(ro);

         }

         List lro = (List) rightMap.get("0");

         if (lro != null) {

             model.append("[");

             Map mt = ConfUtil.getMenus();

 //            for (RightObject ro : lro) {

             for (Object ro : lro) {

                 ro = (RightObject)ro;

                 RightName = (String) ((Map) mt.get(((RightObject) ro).getRightID()))

                         .get("RIGHTNAME");

                 RightURL = "";

                 model.append('{').append("key:")

                         .append(JSONUtilities.quote(((RightObject) ro).getRightID()))

                         .append(",title:")

                         .append(JSONUtilities.quote(RightName));

                 if (rightMap.containsKey(((RightObject) ro).getRightID())) {

                     model.append(",isFolder:true,children:[\n");

                     for (RightObject ro2 : (List) rightMap.get(ro.getRightID())) {

                         Map rItem = (Map) mt.get(ro2.getRightID());

                         if (rItem != null) {

                             RightName = (String) rItem.get("RIGHTNAME");

                             model.append("\t{")

                                     .append("key:")

                                     .append(JSONUtilities.quote(ro2

                                             .getRightID())).append(",title:")

                                     .append(JSONUtilities.quote(RightName));

                             if (rightMap.containsKey(ro2.getRightID())) {

                                 model.append(",isFolder:true,children:[\n");

                                 for (RightObject ro3 : (List) rightMap.get(ro2

                                         .getRightID())) {

                                     if (mt.containsKey(ro3.getRightID())) {

                                         RightName = (String) ((Map) mt.get(ro3

                                                 .getRightID()))

                                                 .get("RIGHTNAME");

                                         RightURL = (String) ((Map) mt.get(ro3

                                                 .getRightID())).get("URL");

                                         String BUSSFUNCID = ro3.getBussFuncID();

                                         String split = RightURL.indexOf("?") >= 0 ? "&"

                                                 : "?";

                                         String url = contextPath

                                                 + RightURL.replace('\\', '/')

                                                 + split + "RightID="

                                                 + ro3.getRightID()

                                                 + "&_menuID="

                                                 + ro3.getRightID() + "&funcID="

                                                 + BUSSFUNCID;

                                         model.append("\t\t{")

                                                 .append("key:")

                                                 .append(JSONUtilities.quote(ro3

                                                         .getRightID()))

                                                 .append(",title:")

                                                 .append(JSONUtilities

                                                         .quote(RightName))

                                                 .append(",url:")

                                                 .append(JSONUtilities

                                                         .quote(url))

                                                 .append("},\n");

                                     }

                                 }

                                 model.deleteCharAt(model.length() - 2).append(

                                         "\t\t]");

                             }

                             model.append("},\n");

                         }

                     }

                     model.deleteCharAt(model.length() - 2).append("\t]");

                 }

                 model.append("},\n");

             }

             model.deleteCharAt(model.length() - 2).append(']');

         }

         return model;

     }

 }