Java operation Json, java operation json

Java operation Json, java operation json
1. Use Gson to build Json

Initialization

JsonObject jsonObject = new JsonObject();

Add attribute

JsonObject. addProperty ("name", Boolean/character/number/string );

Add sub-level Json

jsonObject.add("json_1", jsonObject);

Get json element attributes

jsonObject.get("name").getAsString();

Use Long. parseLong Integer. parseInt

Obtain json Sub-Level Json

jsonObject.getAsJsonObject("json_1");

Array

JsonArray jsonArray = new JsonArray();

 

Array Operation add get

JsonArray. add (element); jsonArray. get (I); // add and get Functions

 

Traverse Arrays

For (int I = 0; I <jsonArray. size (); I ++) {JsonElement jsonElement = (JsonElement) jsonArray. get (I); // get int jsonElement. getAsInt (); // and other types of get}

2. Use fastjson to operate Json

Initialization

JSONObject jsonObject = new JSONObject();

 

Add

jsonObject.put("name",Object);

 

Get the child-level JSONObject

jsonObj.getJSONObject(“name”);

 

Get Child-level JSONArray

jsonObj.getJSONArray("name");

 

Add and retrieve json Array

jsonArray.addjsonArray.get

 

Json array Traversal

For (int I = 0; I <jsonArray. size (); I ++) {JSONObject jsonObject = (JSONObject) jsonArray. get (I); // get int jsonObject. getIntValue ("name"); // string jsonObject. getString ("name"); // and other types of get}