数组转Json

public TodoItemVo[] todoList(TodoParam param){
		ICasDao newDao = BeanFactory.getBean("ICasDao");
		
		String userName = param.getHANDLERJOBNUMBER();
		String status = param.getITEMSTATE();
		String taskId = param.getITEMID();
		
		//查出该用户的所有子账号
		List allAccount = newDao.queryAccount(userName); 
		int size = allAccount.size();
		List arr = new LinkedList();
		int temp=0;
		for(int i=0; i

使用JSONArray或者JSONObject ，通过fromObject()方法将数据转换为json格式