java ObjectMapper json 与对象的相互转换

1 json string 转 JSONObject

try {
     JSONObject jsonObject = new JSONObject("{\"phonetype\":\"N95\",\"cat\":\"WP\"}");
}catch (JSONException err){
     Log.d("Error", err.toString());
}

2 json string 转 JsonNode

ObjectMapper mapper = new ObjectMapper();
JsonNode node = mapper.readTree(jsonString);

3 json string 装map

Map<String, String> map = mapper.readValue(jsonstring, Map.class);

原文地址：https://www.cnblogs.com/wolbo/p/12112627.html