package com.example.yddemo.JSONView;

import com.fasterxml.jackson.annotation.JsonView;

public class User {

    @JsonView(Views.Public.class)
    private Long id;

    @JsonView(Views.Public.class)
    private String name;

    @JsonView(Views.Internal.class)
    private String email;

    @JsonView(Views.Internal.class)
    private String password;

    public User(Long id, String name, String email, String password) {
        this.id = id;
        this.name = name;
        this.email = email;
        this.password = password;
    }

    public Long getId() {
        return id;
    }

    public void setId(Long id) {
        this.id = id;
    }

    public String getName() {
        return name;
    }

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

    public String getEmail() {
        return email;
    }

    public void setEmail(String email) {
        this.email = email;
    }

    public String getPassword() {
        return password;
    }

    public void setPassword(String password) {
        this.password = password;
    }

    @Override
    public String toString() {
        return "User{" +
                "id=" + id +
                ", name='" + name + '\'' +
                ", email='" + email + '\'' +
                ", password='" + password + '\'' +
                '}';
    }
}

public class Views {
    public static class Public { }
    public static class Internal extends Public { }
}

package com.example.yddemo.JSONView;

import com.fasterxml.jackson.annotation.JsonView;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import org.springframework.web.bind.annotation.GetMapping;
import org.springframework.web.bind.annotation.RestController;

@RestController
public class TestDemoController {

    @GetMapping("/user/Public")
    @JsonView(Views.Public.class)
    public User userPublic() {
        User user = new User(1L, "Tom", "123123@163.com", "123456") ;
        return user  ;
    }

    @GetMapping("/user/Internal")
    @JsonView(Views.Internal.class)
    public User userInternal() {
        User user = new User(1L, "Tom", "123123@163.com", "123456") ;
        return user;
    }
}

  @GetMapping("/user/all/public")
    public String userAllPublic() {
        ObjectMapper mapper = new ObjectMapper();
        User user = new User(1L, "Tom", "123123@163.com", "123456") ;
        String publicJson;
        try {
            publicJson = mapper.writerWithView(Views.Public.class).writeValueAsString(user);
        } catch (JsonProcessingException e) {
            throw new RuntimeException(e);
        }
        return publicJson;
    }

    @GetMapping("/user/all/internal")
    public String userAllInternal() {
        ObjectMapper mapper = new ObjectMapper();
        User user = new User(1L, "Tom", "123123@163.com", "123456") ;
        String internalJson;
        try {
            internalJson = mapper.writerWithView(Views.Internal.class).writeValueAsString(user);
        } catch (JsonProcessingException e) {
            throw new RuntimeException(e);
        }
        return internalJson;
    }