java - java对象中json属性的掩码

Question

是否可以使用 Jackson 在 Java 中为 json 属性创建某种掩码？

我的json有很多类似的字段

"records":[
    {
        "ShippingStreet":null,
        "ShippingState":null,
        "ShippingPostalCode":null,
        "ShippingCountry":null,
        "ShippingCity":null,
        "BillingStreet":null,
        "BillingState":null,
        "BillingPostalCode":null,
        "BillingCountry":null,
        "BillingCity":null,

我必须创建两个对象 - 一个用于 Shipping 字段，一个用于 Billing 字段。以下是 BillingAddress

的示例

public class BillingAddress {

    @JsonProperty("BillingStreet")
    private String billingStreet;

    @JsonProperty("BillingState")
    private String billingState;

    @JsonProperty("BillingPostalCode")
    private String billingPostalCode;

    @JsonProperty("BillingCountry")
    private String billingCountry;

    @JsonProperty("BillingCity")
    private String billingCity;

而且我必须为 Shipping 字段创建几乎相同的对象。 结果，我的 json java 对象有两个类型不同但功能几乎相同的字段

@JsonIgnoreProperties(ignoreUnknown=true)
public class Account {

    @JsonUnwrapped
    private BillingAddress billingAddress;

    @JsonUnwrapped
    private ShippingAddress shippingAddress;

是否可以创建某种掩码，我不需要两种类型的对象，而是使用一种类型，但定义它们使用的字段类型。例如这样的事情。 一个对象

public class Address {

    @JsonProperty("*Street")
    private String street;

    @JsonProperty("*State")
    private String state;

    @JsonProperty("*PostalCode")
    private String postalCode;

    @JsonProperty("*Country")
    private String country;

    @JsonProperty("*City")
    private String city;

并且两个字段类型相同

@JsonIgnoreProperties(ignoreUnknown=true)
public class Account {

    @JsonUnwrapped
    @Annotation("Billing*")
    private Address billingAddress;

    @JsonUnwrapped
    @Annotation("Shipping*")
    private Address shippingAddress;

Answer 1

非常具有挑战性的问题。我已经试过了，我的输出是

“记录”:[ {“账户城市”:“CHE”，“账户状态”:“TN”} {“Billingcity”:“TRI”，“Billingstate”:“TN”}]

也许你可以引用一下。如果有的话请告诉我。

服务端:

@GET
@Path("bil")
@Produces(MediaType.APPLICATION_JSON )
public Response sendBill(@HeaderParam("Accept") String accept) throws JsonGenerationException, JsonMappingException, IOException{
    Records records = new Records();
    Account account = new Account();
    Billing billing = new Billing();
    Address address1 = new Address("CHE","TN");
    Address address3 = new Address("TRI","TN");
    account.setAccountAddress(address1);
    billing.setBillingAddress(address3);
    records.setAccount(account);
    records.setBilling(billing);

    return Response.ok(convertToJSON(records), accept).build();
}

private String convertToJSON(Records records) throws JsonGenerationException, JsonMappingException, IOException{
    ObjectMapper mapper = new ObjectMapper();
    convert(mapper,"Account");
    String account = mapper.writeValueAsString(records.getAccount());
    System.out.println(account);
    ObjectMapper mapper1 = new ObjectMapper();
    convert(mapper1,"Billing");
    String billing = mapper1.writeValueAsString(records.getBilling());
    System.out.println(billing);
    System.out.println("\"records\":["+account+ billing + "]");
    return "\"records\":["+account+ billing + "]";
}

private void convert(ObjectMapper mapper,String prefix){
    Map<String,String> map = new LinkedHashMap<>();
    map.put("city",prefix+"city");
    map.put("state",prefix+"state");
    mapper.setPropertyNamingStrategy(new ReplaceNamingStrategy(map));
}