JSON

Maven dependency

<dependency>
   <groupId>net.kut3</groupId>
   <artifactId>json</artifactId>
   <version>0.2.0</version>
</dependency>

Usage

Parsing from a JSON string

You should know exactly the JSON string is a JsonObject or a JsonArray.

// JsonObject   
JsonObject jo = JsonObject.parse("{...}");`  

// JsonArray  
JsonArray ja = JsonArray.parse("[...]");`   

Create new

// JsonObject   
JsonObject jo = new JsonObject();`

// JsonArray  
JsonArray ja = new JsonArray();`

Adapter for Gson

From v0.2.0 and upper

// JsonObject
com.google.gson.JsonObject gsonObj 
            = new com.google.gson.JsonObject();
    
JsonObject jo = new JsonObject(gsonObj);
    

// JsonArray
com.google.gson.JsonArray gsonArr
            = new com.google.gson.JsonArray();
            
JsonArray ja = new JsonArray(gsonArr);

Get and set

• Use getXXX(String fieldName) methods to get the value of one field.
• Use set(String fieldName, XXX fieldValue) to set value for a field (upsert)

To Json string

• Use toString() method.

Loop

• Use foreach(...) method to iterate fields of a JsonObject or items of a JsonArray.

Get size and empty checking

• Use size() and isEmpty() methods.

Get all field names of a JsonObject

From v0.2.0 and upper

jo.fieldNames()