java:不兼容的类型:java.lang.Long不能转换为ValidFor

hwamh0ep  于 2023-05-12  发布在  Java
关注(0)|答案(1)|浏览(227)

我有两节课

  1. SpecContext对象的生成器
import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
import com.fasterxml.jackson.annotation.JsonInclude;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
import lombok.Builder;
import lombok.Data;
import lombok.Value;

import javax.annotation.Nullable;

@Data
@Builder
@JsonIgnoreProperties(ignoreUnknown = true)
public class SpecContext {

    private Long globalPriceId;

    private Long priceId;

    private ValidFor validFor;



    @JsonCreator
    public SpecContext(
            @JsonProperty(value = "globalPriceId")
            Long globalPriceId,
            @JsonProperty(value = "validFor")
            ValidFor validFor,
            @JsonProperty(value = "priceId")
            Long priceId
    ) {
        this.globalPriceId = globalPriceId;
        this.validFor = validFor;
        this.priceId = priceId;

    }

}
  1. ValidFor对象的生成器
import com.fasterxml.jackson.annotation.JsonCreator;
import com.fasterxml.jackson.annotation.JsonIgnoreProperties;
import com.fasterxml.jackson.annotation.JsonProperty;
import com.fasterxml.jackson.databind.annotation.JsonDeserialize;
import com.fasterxml.jackson.databind.annotation.JsonSerialize;
import utils.DateJsonDeserializer;
import utils.DateJsonSerializer;
import lombok.*;

import java.time.LocalDateTime;

@Data
@Value
@JsonIgnoreProperties(ignoreUnknown = true)
public class ValidFor {
    private LocalDateTime startDateTime;
    private LocalDateTime endDateTime;
    public static final String START_DATE_TIME = "startDateTime";
    public static final String END_DATE_TIME = "endDateTime";

    @JsonCreator
    public ValidFor(
            @JsonDeserialize(using = DateJsonDeserializer.class)
            @JsonSerialize(using = DateJsonSerializer.class)
            @JsonProperty(value = START_DATE_TIME)
                    LocalDateTime startDateTime,

            @JsonDeserialize(using = DateJsonDeserializer.class)
            @JsonSerialize(using = DateJsonSerializer.class)
            @JsonProperty(value = END_DATE_TIME)
                    LocalDateTime endDateTime)
            {
        this.startDateTime = startDateTime;
        this.endDateTime = endDateTime;
    }



    public static ValidForBuilder builder() {
        return new ValidForBuilder();
    }

    public static class ValidForBuilder {
        private LocalDateTime startDateTime;
        private LocalDateTime endDateTime;

        public ValidForBuilder() {
        }

        public ValidForBuilder startDateTime(LocalDateTime startDateTime) {
            this.startDateTime = startDateTime;
            return this;
        }

        public ValidForBuilder endDateTime(LocalDateTime endDateTime) {
            this.endDateTime = endDateTime;
            return this;
        }

        public ValidFor build() {

            return new ValidFor(startDateTime, endDateTime);
        }
    }

}

我在自动测试中使用它:

void test() {

    SpecContext sp = SpecContext.builder()
            .globalPriceId(101928081L)
            .priceId(2L)
            .validFor(ValidFor.builder().
                    startDateTime(LocalDateTime.of(2019, 10, 10, 14, 15, 00))
                    .endDateTime(LocalDateTime.of(2025, 10, 10, 14, 15, 00))
                    .build())
            .build();

在编译过程中,我得到了错误java: incompatible types: java.lang.Long cannot be converted to ValidFor,我不明白为什么globalPriceId和priceId正在尝试转换ValidFor?
我尝试使用Lombok @Builder进行ValidFor,但得到了相同的错误
如何解决此问题?谢谢你

dffbzjpn

dffbzjpn1#

Lombok @Builder要求你有一个包含每个字段的构造函数,按照你的字段列出的顺序。这就是为什么@Builder会为您生成这个函数,但是如果您想编写自己的构造函数,您也可以这样做。你在这里做了,你的构造函数的argslist * 不匹配 * -你交换了顺序:在构造函数中,顺序为:[Long globalPriceId, ValidFor validFor, Long priceId],但在您的字段中顺序是[Long globalPriceId, Long priceId, ValidFor validFor]

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