如何配置jersey客户端以使用服务器所需的相同json格式?

时间:2015-07-25 01:53:17

标签: java json jersey-2.0 jersey-client

这是我需要的json(由Ember生成,但在服务器上运行):

{"customer":{"partyType":"jdo.party.model.Organization","name":"asdf"}}

这是我得到的json:

{"id":null,"partyType":"jdo.party.model.Company","name":"Test Company","firstName":"","lastName":""}

我需要球衣客户端发出正确的json,我不知道为什么。 客户端代码:

client = ClientBuilder.newClient();
client.register(JacksonFeature.class);
client.register(new LoggingFilter(Logger.getGlobal(),true));
resource = client.target("http://localhost:8090/crm/api").path("/customers");
CustomerDto dto = new CustomerDto(null, "jdo.party.model." + type, name, "", "");
response = resource.request()
                .accept(APPLICATION_JSON)
                .post(Entity.json(dto), CustomerDto.class);

I类在客户端和&amp ;;上转换为json。服务器:

@XmlAccessorType(XmlAccessType.NONE)
@XmlRootElement(name = "customer")
@JsonRootName("customer")
public class CustomerDto implements Serializable {

    @XmlAttribute
    private UUID id;
    @XmlAttribute
    @NotEmpty
    private String partyType;
    @XmlAttribute
    private String name;
    @XmlAttribute
    private String firstName;
    @XmlAttribute
    private String lastName;

    public CustomerDto(Party party) {
        if (party instanceof Person) {
            partyType = ((Person) party).getClass().getCanonicalName();
            firstName = ((Person) party).getFirstName();
            lastName = ((Person) party).getLastName();
        } else if (party instanceof Organization) {
            partyType = ((Organization) party).getClass().getCanonicalName();
            name = ((Organization) party).getName();
        } else {
            throw new IllegalArgumentException(
                    String.format("Customer must be person or Organization.  %s was passed instead.",
                            party.getClass().getCanonicalName()));
        }
        id = party.getId();
    }

    @AssertTrue
    public boolean hasName() {
        return isNotBlank(name) || isNotBlank(lastName);
    }

    public String getPartyType() {
        return partyType;
    }

    public String getName() {
        return name;
    }

    @Override
    public int hashCode() {
        final int prime = 31;
        int result = 1;
        result = prime * result + ((firstName == null) ? 0 : firstName.hashCode());
        result = prime * result + ((id == null) ? 0 : id.hashCode());
        result = prime * result + ((lastName == null) ? 0 : lastName.hashCode());
        result = prime * result + ((name == null) ? 0 : name.hashCode());
        result = prime * result + ((partyType == null) ? 0 : partyType.hashCode());
        return result;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj)
            return true;
        if (obj == null)
            return false;
        if (getClass() != obj.getClass())
            return false;
        CustomerDto other = (CustomerDto) obj;
        if (firstName == null) {
            if (other.firstName != null)
                return false;
        } else if (!firstName.equals(other.firstName))
            return false;
        if (id == null) {
            if (other.id != null)
                return false;
        } else if (!id.equals(other.id))
            return false;
        if (lastName == null) {
            if (other.lastName != null)
                return false;
        } else if (!lastName.equals(other.lastName))
            return false;
        if (name == null) {
            if (other.name != null)
                return false;
        } else if (!name.equals(other.name))
            return false;
        if (partyType == null) {
            if (other.partyType != null)
                return false;
        } else if (!partyType.equals(other.partyType))
            return false;
        return true;
    }

    @Override
    public String toString() {
        return "CustomerDto [id=" + id + ", partyType=" + partyType + ", name=" + name + ", firstName=" + firstName
                + ", lastName=" + lastName + "]";
    }

    public String getFirstName() {
        return firstName;
    }

    public String getLastName() {
        return lastName;
    }

    public UUID getId() {
        return id;
    }

    /**
     * 
     */
    private static final long serialVersionUID = 1L;

    public CustomerDto() {
        super();
    }

    public CustomerDto(UUID id, String partyType, String name, String firstName, String lastName) {
        super();
        this.id = id;
        this.partyType = partyType;
        this.name = name;
        this.firstName = firstName;
        this.lastName = lastName;
    }

}

2 个答案:

答案 0 :(得分:1)

所以我们需要完成两件事:

  1. 忽略DTO中的空值
  2. 将JSON对象包装在根值中。
  3. 1。忽略无效

    你可以......

    最简单的方法是使用

    注释DTO
    @JsonInclude(JsonInclude.Include.NON_NULL)
    

    这将告诉杰克逊忽略空值。您还需要确保将null作为构造函数值而不是""(这不是同一件事)。

    你可以......

    如果要全局设置此属性,可以在ObjectMapper

    上对其进行配置
    ObjectMapper mapper = new ObjectMapper();
    mapper.setSerializationInclusion(JsonInclude.Include.NON_NULL);
    

    我们可以通过几种方式注册此ObjectMapper以在我们的应用程序中使用

    1. ContextResolver中进行配置,如here所示。然后向客户端

      注册ContextResolver
      client.register(new ObjectMapperContextResolver());
      
    2. 使用Jackson提供程序实例配置映射器

      client.register(new JacksonJaxbJsonProvider(objectMapper, null));
      
    3. 2。换行JSON

      我只知道一种方式,那就是配置ObjectMapper

      ObjectMapper mapper = new ObjectMapper();
      mapper.configure(SerializationFeature.WRAP_ROOT_VALUE, true);
      

      使用的实际值由您的@JsonRootName注释值决定。

      请参阅上文,了解配置要与应用程序一起使用的映射器的方法。

      注意,为了保持对Jaxb注释的支持,您可能需要使用ObjectMapper

      注册jaxb module
      mapper.registerModule(new JaxbAnnotationModule());
      

      我不确定,因为使用JacksonFeature,已经支持JAXB注释。但我不知道提供ObjectMapper是否会覆盖。与明确使用JacksonJaxbJsonProvider相同。所以你可能只想测试一下。

答案 1 :(得分:0)

如果您只需要JSON中的partyType和name属性,那么为什么要注释CustomerDto.java类中的其他字段