Spring Boot JUnit Jackson 无法反序列化所有字段

Question

我有一个无法通过的测试用例：

ContactDTO contactDTO = generateContactDTO();

HttpEntity<ContactDTO> request = new HttpEntity<>(contactDTO, headers);

ResponseEntity<Response> response = restTemplate.exchange(generateBaseUrl() + "/contacts", HttpMethod.POST, request, Response.class);

assertThat(response.getStatusCode()).isEqualTo(HttpStatus.OK);

这是我的 ContactDTO 类：

public class ContactDTO {

    @NotNull

    @Size(min = 2, max = 100)

    private String firstName;

    @NotNull

    @Size(min = 2, max = 100)

    private String lastName;

    @NotNull

    @Size(min = 3, max = 100)

    private String email;

    @NotNull

    @Size(min = 3, max = 50)

    private String phoneNumber;

    @JsonCreator(mode = JsonCreator.Mode.PROPERTIES)

    ContactDTO(@JsonProperty("firstName") @NotNull @Size(min = 2, max = 100) String firstName,

           @JsonProperty("lastName") @NotNull @Size(min = 2, max = 100) String lastName,

           @JsonProperty("email") @NotNull @Size(min = 3, max = 50) String email,

           @JsonProperty("phoneNumber") @NotNull @Size(min = 3, max = 50) String phoneNumber) {

        this.firstName = firstName;

        this.lastName = lastName;

        this.email = email;

        this.phoneNumber = phoneNumber;

    }

    String getFirstName() {

        return firstName;

    }

    void setFirstName(String firstName) {

        this.firstName = firstName;

    }

    String getLastName() {

        return lastName;

    }

    void setLastName(String lastName) {

        this.lastName = lastName;

    }

    public String getEmail() {

        return email;

    }

    private void setEmail(String email) {

        this.email = email;

    }

    String getPhoneNumber() {

        return phoneNumber;

    }

    private void setPhoneNumber(String phoneNumber) {

        this.phoneNumber = phoneNumber;

    }

}

当我调试它时，我发现所有字段在发送到控制器之前都已填充在 contactDTO 中。但是，在控制器处，仅填充电子邮件字段，并且会导致 HTTP 错误请求。

PS：我使用Spring Boot 2.1.7.RELEASE

Answer 1

由于没有公共访问器，Jackson 无法序列化我的 DTO。因此，我将其添加到 DTO 对象的顶部：@JsonAutoDetect(fieldVisibility&nbsp;=&nbsp;JsonAutoDetect.Visibility.ANY)