json 字符串传到action之后的处理，遍历. 练习代码片

		//增加和修改学生家庭信息
		JSONObject jsonObject = JSONObject.fromObject(json_info);
		TableBean familyTB_modify = new TableBean("TN_FAMILY_MODIFY");
		TableBean familyTB_new = new TableBean("TN_FAMILY_NEW");
		dataBean.addTableBean(familyTB_modify);
		dataBean.addTableBean(familyTB_new);
		if (jsonObject != null && jsonObject.size() > 0 && !"{}".equals(jsonObject)) {
			@SuppressWarnings("unchecked")
			Set<String> studentIdSet = jsonObject.keySet();
			for(String studentId : studentIdSet){
				JSONArray jsonArray_family = jsonObject.getJSONArray(studentId);
				for (int i = 0; i < jsonArray_family.size(); i++) {
					JSONObject jsonObj_sub = (JSONObject) jsonArray_family.get(i);
					String familyId = (String) jsonObj_sub.get("familyId");
					String familyName = (String) jsonObj_sub.get("familyName");
					String familyRelationName = (String) jsonObj_sub.get("familyRelationName");
					RowBean rowBean = new RowBean();
					rowBean.addCellBean(new CellBean("CR_STUDENT_ID", studentId));
					rowBean.addCellBean(new CellBean(TriangleDefinition.COLUMN_NAME_CN_NAME, familyName));
					rowBean.addCellBean(new CellBean("CR_FAMILY_RELATION_ID", familyRelationName));
					if (StringUtils.isNotBlank(familyId)) {
						rowBean.addCellBean(new CellBean(TriangleDefinition.COLUMN_NAME_CN_ID, familyId));
						familyTB_modify.addRowBean(rowBean);
					}else{
						familyTB_new.setDbTableDataOperationId(TriangleDefinition.DATABASE_TABLE_DATA_OPERATION_INSERT);
						familyTB_new.addRowBean(rowBean);
					}
				}
			}
		}