在源参数中不存在名为"updatedDate"的属性。你是说“空的”吗？

Question

我收到Mapstruct异常，其中源和目标中已经存在字段：

@Mapper
public interface DccsMapper {
    DccsMapper MAPPER = Mappers.getMapper( DccsMapper.class );

    @Mappings({
        @Mapping(source = "updatedDate", target = "updatedDate", dateFormat = "yyyy-MM-dd'T'HH:mm:ss"),
    })
    List<DataCenterCluster> entityListToDaoList(List<Dccs> source);
}

来源：

public class Dccs {
    @SerializedName("UpdatedDate")
    @Expose
    private String updatedDate;

目的地：

public class DataCenterCluster {

    @Column(name = "UPDATEDDATE")
    private Date updatedDate;

例外情况：

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.7.0:compile (default-compile) on project Snow: Compilation failure
[ERROR] /C:......../DMapper.java:[18,17] No property named "updatedDate" exists in source parameter(s). Did you mean "empty"?

Pom还有：

<properties>
    <org.mapstruct.version>1.3.1.Final</org.mapstruct.version>
    <m2e.apt.activation>jdt_apt</m2e.apt.activation>
</properties>
 .
 .
 <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>3.7.0</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                    <annotationProcessorPaths>
                        <path>
                            <groupId>org.mapstruct</groupId>
                            <artifactId>mapstruct-processor</artifactId>
                            <version>${org.mapstruct.version}</version>
                        </path>
                        <path>
                            <groupId>org.projectlombok</groupId>
                            <artifactId>lombok</artifactId>
                            <version>1.18.10</version>
                        </path>   
                    </annotationProcessorPaths>
                </configuration>
            </plugin>

Answer 1

哦，老兄。。。我被困了一个小时，当我发布问题、答案的那一刻，我的脑海中闪过了。

在基于列表的映射的情况下，我们需要添加以下内容：

List<DataCenterCluster> entityListToDaoList(List<Dccs> source);

@Mappings({
        @Mapping(source = "updatedDate", target = "updatedDate", dateFormat = "yyyy-MM-dd'T'HH:mm:ss"),
    })
    DataCenterCluster entityToDao(Dccs source);