此版本仍在开发中,尚未被视为稳定版本。对于最新的稳定版本,请使用 Spring Framework 6.2.0spring-doc.cadn.net.cn

Jackson JSON

Spring 提供对 Jackson JSON 库的支持。spring-doc.cadn.net.cn

JSON 视图

Spring WebFlux 为 Jackson 的序列化视图提供了内置支持, ,它只允许渲染Object.若要将其与@ResponseBodyResponseEntitycontroller 方法,你可以使用 Jackson 的@JsonView注解来激活序列化视图类,如下例所示:spring-doc.cadn.net.cn

@RestController
public class UserController {

	@GetMapping("/user")
	@JsonView(User.WithoutPasswordView.class)
	public User getUser() {
		return new User("eric", "7!jd#h23");
	}
}

public class User {

	public interface WithoutPasswordView {};
	public interface WithPasswordView extends WithoutPasswordView {};

	private String username;
	private String password;

	public User() {
	}

	public User(String username, String password) {
		this.username = username;
		this.password = password;
	}

	@JsonView(WithoutPasswordView.class)
	public String getUsername() {
		return this.username;
	}

	@JsonView(WithPasswordView.class)
	public String getPassword() {
		return this.password;
	}
}
@RestController
class UserController {

	@GetMapping("/user")
	@JsonView(User.WithoutPasswordView::class)
	fun getUser(): User {
		return User("eric", "7!jd#h23")
	}
}

class User(
		@JsonView(WithoutPasswordView::class) val username: String,
		@JsonView(WithPasswordView::class) val password: String
) {
	interface WithoutPasswordView
	interface WithPasswordView : WithoutPasswordView
}
@JsonView允许视图类数组,但您只能为每个 controller 方法。如果需要激活多个视图,请使用复合界面。