GSon analysis tool class walks you

There should be many places for gson. Let’s start with a singleton today:

Add dependencies in build.gradle:

implementation 'com.google.code.gson:gson:2.8.5'

 Write tools directly:

public class GsonDanli {
    private Gson gson;
    //构造函数私有化
    private GsonDanli(){
        gson = new Gson();
    }

    private static GsonDanli gsonDanlis;

    //提供一个公共的、静态的、返回值类型是当前本类的对象
    public static GsonDanli getGsonDanli(){
        if(gsonDanlis == null){
            synchronized (OkHttpUtils.class){
                if(gsonDanlis == null) {
                    gsonDanlis = new GsonDanli();
                }
            }
        }
        return gsonDanlis;
    }
    public Gson getGsons(){
        return gson;
    }
    public <T> T getBean(String s, Class<T> classOfT){
        Object object=gson.fromJson(s,classOfT);
        return Primitives.wrap(classOfT).cast(object);
    }
}