public static JSONArray geth24Weather(String result) {//获取当天24小时以及第二天的天气结果对象
JSONObject fromObject = null;
JSONArray h24weatherArray =null;
try {
int indexOf = result.indexOf("{");
int lastIndexOf = result.lastIndexOf("}");
result=result.substring(indexOf, lastIndexOf+1);
String replaceAll = result.replaceAll(" ", "");
if(replaceAll.trim().startsWith("{")){
fromObject = JSONObject.fromObject(result);
}
//System.out.println("fromObject"+fromObject);
} catch (Exception e) {
e.printStackTrace();
}
if(fromObject!=null&&fromObject.get("code").equals("0")){
JSONArray jsonArray = fromObject.getJSONArray("data");//获取天气数据对象
JSONArray forecastArray= ((JSONObject)jsonArray.get(0)).getJSONArray("forecast");//获取预报天气对象
JSONObject todayObj= (JSONObject)forecastArray.get(0);//获取到当天对象
if(todayObj.containsKey("h24weather")&&todayObj.get("h24weather")!=null){
System.out.println("打印todayObj="+todayObj);
h24weatherArray=todayObj.optJSONArray("h24weather");
if(h24weatherArray==null){
geth24Weather(result);
}
System.out.println("打印h24weatherArray="+h24weatherArray);
}else{
System.out.println("空");
}
}
return h24weatherArray;
}
这个就是递归没有结束条件，一旦遇到result是null那么这个就会无限循环下去，就会在栈中不断调用方法，直至栈溢出。