FSATJSON工具

maven依赖

<dependency>
    <groupId>com.alibaba</groupId>
    <artifactId>fastjson</artifactId>
    <version>1.2.47</version>
</dependency>

案例编码

//存储数据
public void fun(JSONObject object){
	//string
  	object.put("string","string");
  	
    //int
    object.put("int",2);
    
    //boolean
    object.put("boolean",true);
    
    //array
    List<Integer> integers = Arrays.asList(1,2,3);
    object.put("list",integers);
    
    //null
    object.put("null",null);
    
    System.out.println(object);
}

输出结果：
{"boolean":true,"string":"string","list":[1,2,3],"int":2}

//解析数据
public void fun(JSONObject object){
	//string
	String s = object.getString("string");
	System.out.println(s);
	
	//int
	int i = object.getIntValue("int");
	System.out.println(i);
	
	//boolean
	boolean b = object.getBooleanValue("boolean");
 	System.out.println(b);
 	
  	//list
  	List<Integer> integers = 		JSON.parseArray(object.getJSONArray("list").toJSONString(),Integer.class);
  	integers.forEach(System.out::println);
  	//null
  	System.out.println(object.getString("null"));
}