使用 GSON 递归解析 JSON 数据

Question

有时我们可能有 JSON 数据，例如，

[
  {
    "Name": "Fruits",
    "Quantity": "10",
    "isCheckBox": false,
    "List": [
      {
        "Name": "Mango",
        "Quantiy": "10",
        "iScheckBox": true,
        "List": null
      },
      {
        "Name": "Apple",
        "Quantiy": "10",
        "iScheckBox": false,
        "List": [
          {
            "Name": "Simla",
            "Quantiy": "10",
            "iScheckBox": true,
            "List": null
          },
          {
            "Name": "Fuji",
            "Quantiy": "10",
            "iScheckBox": false,
            "List": []
          }
        ]
      }
    ]
  },
  {
    "Name": "Fruits",
    "Quantity": "10",
    "isCheckBox": false,
    "List": [
      {
        "Name": "Mango",
        "Quantiy": "10",
        "iScheckBox": true,
        "List": null
      },
      {
        "Name": "Apple",
        "Quantiy": "10",
        "iScheckBox": false,
        "List": [
          {
            "Name": "Simla",
            "Quantiy": "10",
            "iScheckBox": true,
            "List": null
          },
          {
            "Name": "Fuji",
            "Quantiy": "10",
            "iScheckBox": false,
            "List": []
          }
        ]
      }
    ]
  }
]

注意：如果 isCheckBox 值为 false，则将检查列表值以获取内部对象。

不知道深度级别的结束，它可能结束，或继续。 如何为这样的 JSON 数据定义 POJO 类？

Answer 1

public class Shopping
{
private Fruits Fruits;

private String Vegetables;

public Fruits getFruits ()
{
    return Fruits;
}

public void setFruits (Fruits Fruits)
{
    this.Fruits = Fruits;
}

public String getVegetables ()
{
    return Vegetables;
}

public void setVegetables (String Vegetables)
{
    this.Vegetables = Vegetables;
}

@Override
public String toString()
{
    return "ClassPojo [Fruits = "+Fruits+", Vegetables = "+Vegetables+"]";
}}

这对于上面给出的样本就足够了。 请尝试

Answer 2

其实解决方法很简单

这里是实体，

public class FruitsEntity {
    String Name;
    String Quantity;
    boolean isCheckBox;
    ArrayList<FruitsEntity> List;
}

你可以解析使用，

Gson gson = new Gson();
ArrayList<FruitsEntity> nestEntities = gson.fromJson(jsonData, new TypeToken<ArrayList<FruitsEntity>>() {
}.getType());