Jackson JSON
Spring 为 Jackson JSON 库提供支持。
JSON 视图
Spring WebFlux 提供对 Jackson 序列化视图 的内置支持,它允许仅呈现 Object
中所有字段的子集。要将其与 @ResponseBody
或 ResponseEntity
控制器方法一起使用,可以使用 Jackson 的 @JsonView
注解来激活序列化视图类,如下例所示
-
Java
-
Kotlin
@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 允许使用视图类的数组,但每个控制器方法只能指定一个。如果您需要激活多个视图,请使用复合接口。
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