MapStruct和Lombok无法收集 [英] MapStruct and Lombok not working togather
问题描述
正在使用的技术堆栈：
Java 8
MapStruct：1.2.0.Final
Lombok：1.16.18
IDE ：IntelliJ - Lombok插件已安装
Java 8 MapStruct : 1.2.0.Final Lombok: 1.16.18 IDE: IntelliJ - Lombok Plugin already installed
- 最初，当我删除getter和setter并添加
@Getter时，我遇到了问题和@Setter注释，mapstruct无法找到该属性并说：结果类型为com.vg.once.dto.OneDto的未知属性id。你的意思是null吗？ - 我开始知道Lombok 1.16.14或更新版本与MapStruct 1.2.0.Beta1或更新版本是兼容的并且可以一起工作，但我的版本更新，然后仍然需要问题。
- 我已经尝试的另一个解决方案是运行Lombok的Delombok插件，但是，同样的问题出现了。
- Initially, I faced issues when I removed getters and setters and added
@Getterand@Setterannotation,mapstructis not able to find the property and says:Unknown property "id" in result type com.vg.once.dto.OneDto. Did you mean "null"? - I came to know that Lombok 1.16.14 or newer along with MapStruct 1.2.0.Beta1 or newer are compatible and can work together, but my versions are newer then the desired still the issue is arising.
- One more solution that I have already tried is running Lombok's Delombok plugin, but still, the same issue is arising.
以下是项目文件：
实体对象： One.java ：
import lombok.Getter;
import lombok.Setter;
@Getter
@Setter
public class One {
private int id;
private Integer version;
private int projectId;
private String title;
private String code;
private int sortOrder;
}
DTO对象： OneDTO.java ：
import lombok.Getter;
import lombok.Setter;
@Getter
@Setter
public class OneDto {
private int id;
private Integer version;
private int projectId;
private String title;
private String code;
private int sortOrder;
}
Mapper类： OneMapper.java
import org.mapstruct.Mapper;
import org.mapstruct.Mapping;
import com.vg.once.dto.OneDto;
import com.vg.once.entity.One;
@Mapper
public interface OneMapper {
@Mapping(target="id", source="one.id")
OneDto createOne (One one);
}
pom.xml
<project xmlns="http://maven.apache.org/POM/4.0.0" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<groupId>com.vg</groupId>
<artifactId>mapstruct</artifactId>
<version>0.0.1-SNAPSHOT</version>
<name>Mapstruct-test</name>
<properties>
<java.version>1.8</java.version>
<org.mapstruct.version>1.2.0.Final</org.mapstruct.version>
<org.projectlombok.version>1.16.18</org.projectlombok.version>
</properties>
<dependencies>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>${org.projectlombok.version}</version>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.mapstruct</groupId>
<artifactId>mapstruct-jdk8</artifactId>
<version>${org.mapstruct.version}</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.projectlombok</groupId>
<artifactId>lombok-maven-plugin</artifactId>
<version>1.16.18.1</version>
<executions>
<execution>
<phase>generate-sources</phase>
<goals>
<goal>delombok</goal>
</goals>
</execution>
</executions>
<configuration>
<sourceDirectory>src/main/java</sourceDirectory>
<addOutputDirectory>false</addOutputDirectory>
<outputDirectory>${project.build.directory}/delombok</outputDirectory>
<encoding>UTF-8</encoding>
<skip>false</skip>
<verbose>false</verbose>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.6.1</version>
<configuration>
<source>${java.version}</source>
<target>${java.version}</target>
<annotationProcessorPaths>
<path>
<groupId>org.mapstruct</groupId>
<artifactId>mapstruct-processor</artifactId>
<version>${org.mapstruct.version}</version>
</path>
</annotationProcessorPaths>
</configuration>
</plugin>
</plugins>
</build>
</project>
构建跟踪：
[INFO] Scanning for projects...
[INFO]
[INFO] ------------------------------------------------------------------------
[INFO] Building Mapstruct-test 0.0.1-SNAPSHOT
[INFO] ------------------------------------------------------------------------
[INFO]
[INFO] --- lombok-maven-plugin:1.16.18.1:delombok (default) @ mapstruct ---
[INFO] Delombok complete.
[INFO]
[INFO] --- maven-resources-plugin:2.6:resources (default-resources) @ mapstruct ---
[WARNING] Using platform encoding (UTF-8 actually) to copy filtered resources, i.e. build is platform dependent!
[INFO] Copying 0 resource
[INFO]
[INFO] --- maven-compiler-plugin:3.6.1:compile (default-compile) @ mapstruct ---
[INFO] Changes detected - recompiling the module!
[WARNING] File encoding has not been set, using platform encoding UTF-8, i.e. build is platform dependent!
[INFO] Compiling 5 source files to /home/vivekgupta/Documents/workspaces/mapstruct-test/mapstruct/target/classes
[INFO] -------------------------------------------------------------
[ERROR] COMPILATION ERROR :
[INFO] -------------------------------------------------------------
[ERROR] /home/vivekgupta/Documents/workspaces/mapstruct-test/mapstruct/src/main/java/com/vg/once/mapper/OneMapper.java:[12,9] Unknown property "id" in result type com.vg.once.dto.OneDto. Did you mean "null"?
[INFO] 1 error
[INFO] -------------------------------------------------------------
[INFO] ------------------------------------------------------------------------
[INFO] BUILD FAILURE
[INFO] ------------------------------------------------------------------------
[INFO] Total time: 1.637 s
[INFO] Finished at: 2017-12-06T19:23:53+05:30
[INFO] Final Memory: 19M/235M
[INFO] ------------------------------------------------------------------------
[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:3.6.1:compile (default-compile) on project mapstruct: Compilation failure
[ERROR] /home/vivekgupta/Documents/workspaces/mapstruct-test/mapstruct/src/main/java/com/vg/once/mapper/OneMapper.java:[12,9] Unknown property "id" in result type com.vg.once.dto.OneDto. Did you mean "null"?
[ERROR] -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
请分享如何使用Lombok和MapStruct实现此功能一起？
please share how can i get this working using both Lombok and MapStruct together?
推荐答案
它不起作用的原因是因为Maven只使用MapStruct处理器而不使用Lombok处理器。 annotationProcessorPaths 告诉maven它应该使用哪些处理器。
The reason why it does not work is because Maven only uses the MapStruct processor and not the Lombok one. The annotationProcessorPaths tells maven which processors it should use.
delombok什么都不做，因为你最终得到2个文件每个类，我认为maven编译器看不到它们。
The delombok does nothing as you are ending up with 2 files per class and I think that the maven compiler does not see them.
你有2个选择：
选项1：在 anootationProcessorPaths
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.6.1</version>
<configuration>
<source>${java.version}</source>
<target>${java.version}</target>
<annotationProcessorPaths>
<path>
<groupId>org.mapstruct</groupId>
<artifactId>mapstruct-processor</artifactId>
<version>${org.mapstruct.version}</version>
</path>
<path>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>${org.projectlombok.version}</version>
</path>
</annotationProcessorPaths>
</configuration>
</plugin>
选项2：
添加 mapstruct-processor 依赖于依赖项并删除 annotationProcessorPaths 。这样maven编译器将获取依赖项中的所有注释处理器。
Add the mapstruct-processor dependency to your dependencies and remove the annotationProcessorPaths. This way the maven compiler will pick up all the annotation processors that are in your dependencies.
我建议使用选项1，因为你可以确定你没有在代码中使用某些MapStruct传递依赖项和内部类。
I would advise in using Option 1, as with that you can be certain that you are not using some MapStruct transitive dependencies and internal classes in your code.
编辑：
确保由于 mapstruct-processor 添加为提供的依赖项=https://youtrack.jetbrains.com/issue/IDEA-150621\"rel =noreferrer> IDEA-150621 。 IntelliJ目前不使用Maven的 annotationProcessorPaths 来正确配置项目。
To make sure that the IntelliJ annotation processing also works you will have to add the mapstruct-processor as a provided dependency due to IDEA-150621. IntelliJ in the moment does not use the annotationProcessorPaths from Maven to configure the project correctly.
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