来自json文件的两维对象数组

Question

我试图创建一个具有二维对象数组的对象 我正在使用gson，这里是代码：

Gson g=new Gson();
JsonObject o =(JsonObject) parser.parse(new FileReader(System.getProperty("user.dir")+"\\src\\main\\resources\\simulation[2].json"));
SimulationInput si=g.fromJson(o, SimulationInput.class);

这是json文件：

{
"threads": 4,

"tools": [
    {
        "tool": "gs-driver",
        "qty": 35
    },
    {
        "tool": "np-hammer",
        "qty": 17
    },
    {
        "tool": "rs-pliers",
        "qty": 23
    }
],
"plans": [
    {
        "product": "yphone30",
        "tools": ["gs-driver", "rs-pliers"],
        "parts": ["5'-screen", "round-button"]
    },
    {
        "product": "yphone30-pro",
        "tools": ["gs-driver", "np-hammer"],
        "parts": ["6'-screen", "round-button", "camera"]
    },
    {
        "product": "yphone30-pro-plus",
        "tools": ["gs-driver", "np-hammer", "rs-pliers"],
        "parts": ["10'-screen", "round-button", "camera", "headphone-jack"]
    },
    {
        "product": "5'-screen",
        "tools": ["np-hammer"],
        "parts": ["glass", "touch-controller"]
    },
    {
        "product": "6'-screen",
        "tools": ["np-hammer", "rs-pliers"],
        "parts": ["glass", "touch-controller"]
    },
    {
        "product": "10'-screen",
        "tools": [],
        "parts": ["5'-screen", "5'-screen"]
    },
    {
        "product": "round-button",
        "tools": ["gs-driver"],
        "parts": ["round-stuff", "electrical-things"]
    },
    {
        "product": "camera",
        "tools": ["gs-driver", "rs-pliers"],
        "parts": ["glass", "round-stuff"]
    },
    {
        "product": "headphone-jack",
        "tools": ["rs-pliers"],
        "parts": ["round-stuff"]
    },
    {
        "product": "touch-controller",
        "tools": ["rs-pliers", "np-hammer"],
        "parts": ["electrical-things"]
    },
    {
        "product": "glass",
        "tools": ["np-hammer"],
        "parts": []
    },
    {
        "product": "round-stuff",
        "tools": ["rs-pliers"],
        "parts": []
    },
    {
        "product": "electrical-things",
        "tools": ["gs-driver"],
        "parts": []
    }
],
"waves": [
    [
        {
            "product": "yphone30",
            "qty": 2,
            "startId": 50123450
        },
        {
            "product": "yphone30-pro",
            "qty": 2,
            "startId": 50234560
        },
        {
            "product": "yphone30-pro-plus",
            "qty": 3,
            "startId": 502345601
        }

    ],
    [
        {
            "product": "yphone30",
            "qty": 2,
            "startId": 501623450
        },
        {
            "product": "yphone30-pro",
            "qty": 3,
            "startId": 560234560
        },
        {
            "product": "yphone30-pro-plus",
            "qty": 2,
            "startId": 5602345601
        }
    ]
]
}

这些是SimulationInput：

的字段

public class SimulationInput {
    private int threads;
    private ToolsQuantity[] tools;
    private ManufactoringPlan[] plans;
    private ProductDetails[][] products;
}

如何从json文件中实例化2维数组中的每一行？