在spring的反序列化过程中忽略字段？

import com.fasterxml.jackson.annotation.JsonIgnore;

public class User {
    private String username;
    
    @JsonIgnore
    private String password; // 这个字段将被忽略
    
    // getters and setters
}

import com.fasterxml.jackson.annotation.JsonIgnoreProperties;

@JsonIgnoreProperties({"password", "email"})
public class User {
    private String username;
    private String password;
    private String email;
    
    // getters and setters
}

import com.fasterxml.jackson.core.JsonParser;
import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.DeserializationContext;
import com.fasterxml.jackson.databind.JsonDeserializer;
import com.fasterxml.jackson.databind.annotation.JsonDeserialize;

import java.io.IOException;

public class User {
    private String username;
    
    @JsonDeserialize(using = CustomPasswordDeserializer.class)
    private String password;
    
    // getters and setters
}

class CustomPasswordDeserializer extends JsonDeserializer<String> {
    @Override
    public String deserialize(JsonParser p, DeserializationContext ctxt) 
      throws IOException, JsonProcessingException {
        // 自定义逻辑，例如总是返回null或者进行某种转换
        return null;
    }
}