JSONObject.parseObject接收map

com.alibaba.fastjson.JSONObject obj = new com.alibaba.fastjson.JSONObject();
 
obj.put("a1", "tom");
obj.put("a2", "linly");
obj.put("a3", "Eric");
obj.put("a4", "Hety");
 
Map<String, String> params = JSONObject.parseObject(obj.toJSONString(), new TypeReference<Map<String, String>>(){});