ObjectMapper.java 文件源码

public ObjectMapper enableDefaultTyping(DefaultTyping dti, JsonTypeInfo.As includeAs)
{
    TypeResolverBuilder<?> typer = new DefaultTypeResolverBuilder(dti);
    // we'll always use full class name, when using defaulting
    typer = typer.init(JsonTypeInfo.Id.CLASS, null);
    typer = typer.inclusion(includeAs);
    return setDefaltTyping(typer);
}