java遍历json

1、paramMap为jsonString

        Set<String> keys = paramMap.keySet();
        Iterator<String> iterator = keys.iterator();
        while (iterator.hasNext()){
            String key = iterator.next();
            log.info("key = {}",key);
            log.info("value = {}",paramMap.get(key));
        }

2、JSONObject jsonObject = new JSONObject(jsonString);

然后用Iterator迭代器遍历取值，建议用反射机制解析到封装好的对象中

JSONObject jsonObject = new JSONObject(jsonString);
        Iterator iterator = jsonObject.keys();
while(iterator.hasNext()){
            key = (String) iterator.next();
        value = jsonObject.getString(key);
}

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