我们如何在集合上进行kotlin数据类验证？

Question

我试图在kotlin中为我的数据模型添加验证，使用@field注释很容易实现简单的字段。但是，我正在努力做同样的收藏。

我已经在这里将问题上传到了github

public class JavaUser {
    @NotEmpty
    @NotNull
    @Pattern(regexp = "[a-z]*", message = "Only lower case first name")
    private String name;

    private List<
            @NotNull
            @NotEmpty
            @Pattern(regexp = "\\d{10}", message = "Only 10 digits")
                    String> phones;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public List<String> getPhones() {
        return phones;
    }

    public void setPhones(List<String> phones) {
        this.phones = phones;
    }
}

data class KotlinUser(
    @field:NotEmpty
    @field:NotNull
    @field:Pattern(regexp = "[a-z]*", message = "Only lower case first name")
    val name: String,

    // Cannot use @field here, anything else we could use?
    val phones: List<
        @NotNull
        @NotEmpty
        @Pattern(regexp = "\\d{10}", message = "Only 10 digits")
        String>
)

    @Test
    fun `java user validation`() {
        val javaUser = JavaUser()
        javaUser.name = "sadfjsjdfhsjdf"
        javaUser.phones = listOf("dfhgd")

        webTestClient.put().uri("/user/java")
            .body(BodyInserters.fromObject(javaUser))
            .exchange()
            .expectStatus().is4xxClientError
    }

    @Test
    fun `kotlin user validation`() {
        val kotlinUser = KotlinUser(name = "sadfjsjdfhsjdf", phones = listOf("dfhgd"))

        webTestClient.put().uri("/user/kotlin")
            .body(BodyInserters.fromObject(kotlinUser))
            .exchange()
            .expectStatus().is4xxClientError
    }

@RestController
class Controller {
    @PutMapping("/user/java")
    fun putUser(@RequestBody @Valid javaUser: JavaUser): Mono<ResponseEntity<String>> =
        Mono.just(ResponseEntity("shouldn't get this", HttpStatus.OK))

    @PutMapping("/user/kotlin")
    fun putUser(@RequestBody @Valid kotlinUser: KotlinUser): Mono<ResponseEntity<String>> =
        Mono.just(ResponseEntity("shouldn't get this", HttpStatus.OK))
}

如有任何帮助，将不胜感激。谢谢你！

Answer 1

当前不支持此操作。Kotlin编译器当前忽略类型上的注释。

有关详细信息，请参阅：

• https://discuss.kotlinlang.org/t/i-Have-a-Question-about-applying-bean-validation-2-0/5394
• 使用容器元素约束的Kotlin数据类和bean验证

null

后者的目标版本为1.4。