java中使用json以及所导入的包

导入6个jar包，下载地址：https://github.com/joytom/json_all

JSONObject wang = new JSONObject();
Object nullObj = null;
wang.put("name","王小二");
wang.put("age","25.2");
wang.put("birthday","1998-12-07");
wang.put("major",new String[] {"理发","挖掘机"});
wang.put("has_girfriend",false);
wang.put("car",nullObj);
System.out.println(wang.toString());

输出结果：

{
	"birthday":"1998-12-07",
	"has_girfriend":false,
	"major":["理发","挖掘机"],
	"name":"王小二",
	"age":"25.2"
}