Question

我试图用一个简单的动态变量来反序列化json：在嵌套的＆＃34; Lottery＆＃34;上，最后一个有时没有来，有时是空的：

    {
    "name": "Michael ",
    "surname":"Rodriguez",
    "Lottery": {
        "number 1": "855-333-4432",
        "number 2": "815-355-1111",
        "number 3": "208-222-322"
    }
},
{
    "name": "Captain ",
    "surname":"America",
    "Lottery": {
        "number 1": "444-333-888",
        "number 2": "222-333-444",
    }
},
{
    "name": "Pet ",
    "surname":"Sounds",
    "Lottery": {
        "number 1": "815-833-8888",
        "number 2": "834-343-1343",
        "number 3": ""
    }
}

所以我要创建一个这样的模型类：

public class Person {
    private String name;
    private String surname;
    private Lottery Lottery;


    public String getName() {
        return name;
    }

    public String getSurname() {
        return surname;
    }

    public Lottery getLottery() {
        return Lottery;
    }

    public void setName(String sName) { 
        name = sName;
    }

    public void setSurame(String sSurname) { 
        surname = sSurname;
    }

    public void setLottery(Lottery sLottery) {
        Lottery = sLottery;
    }
}

public class Lottery {
    private String number 1;
    private String number 2;
    private String number 3;

    public String getnumber 1() {
        return number 1;
    }

    public String getnumber 2() {
        return number 2;
    }

    public String getnumber 3() {
        return number 3;
    }

    public void setnumber 1(String snumber 1) { 
        number 1 = snumber 1;
    }

    public void setnumber 2(String snumber 2) { 
        number 2 = snumber 2;
    }

    public void setnumber 3(String snumber 3) { 
        number 3 = snumber 3;
    }
}

我做得对，或者我对丢失的变量有疑问吗？

提前致谢!!!!

Answer 1

如果您使用与字段相同的名称，则不需要将@JsonProperty添加到每个字段，因为默认情况下已完成。杰克逊可以毫无问题地处理空值。

Jackson API - 使用简单的动态对象反序列化JSON

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