Java LibGDX如何解析JSON?
问题描述：
我有一个内容如下的json文件:
I have a json file with content like this:
{
players: [
{
name: "",
hp: 100
},
{
name: "",
hp: 120
}
],
weapons: [
{
name: "Desert Eagle",
price: 100
},
{
name: "AK-47",
price: 150
}
]
}
如何将其解析为一系列武器?我已经以String形式获取此文件的内容.然后我使用libgdx JsonReader:
How to parse it into an array of weapons? I already get content of this file as String. Then I use libgdx JsonReader:
JsonValue json = new JsonReader().parse(text);
我还有一门武器课:
class Weapon {
private String name;
private int price;
}
接下来我该怎么做才能将所有武器放入一个阵列中?
What should I do next to put all the weapons into an array?
答
libGDX中没有自动将已解析的Json映射到Java对象的映射，因此您必须遍历Json并自己创建适当的对象.对于解析weapons的示例:
There is no automatic mapping of parsed Json to Java object in libGDX, so you have to traverse Json and create appropriate objects by yourself. For sample that's how you parse weapons:
JsonValue json = new JsonReader().parse(text);
Array<Weapon> weapons = new Array<Weapon>();
JsonValue weaponsJson = json.get("weapons");
for (JsonValue weaponJson : weaponsJson.iterator()) // iterator() returns a list of children
{
Weapon newWeapon = new Weapon();
newWeapon.name = weaponJson.getString("name");
newWeapon.price = weaponJson.getInt("price");
weapons.add(newWeapon);
}