I'm getting troubles since I have added a new package in my spring boot application containing Mapstructs' mappers. Looks like the field:
@Autowired
private UtenteMapper utenteMapper;
is not being populated in my Service component. The Spring boot main class, PaniECumpanagghiuApplicationConfiguration
, is quite essential, (it contains only the @SpringBootApplicationAnnotation
annotation), but I've tried previously to add a @ComponentScan
.
@SpringBootApplication
@ComponentScan("PaniECumpanagghiu.PaniECumpanagghiu.Mappers")
In this way the functionality is being recovered, but the @Controller
is not fired (when I invoke my API the server retrieves 404). I tried also to add all the packages into the annotation @ComponentScan
, like this
@ComponentScan("PaniECumpanagghiu.PaniECumpanagghiu.Mappers","PaniECumpanagghiu.PaniECumpanagghiu.controller",...)
In this way neither the former object, UtenteMapper
, is populated anymore (same behavior than the case without @ComponentScan
annotation).
If I comment all references to the new package, and I simplify the API in order to return only a String ("Ciao"), the controller is fired. This is my tree directory
I have described everything in the previous section.
EDIT 1 Hey guys i have the impression that the problem is in the mapstruct dependence importing. So I decided to give you the whole pom.
<?xml version="1.0" encoding="UTF-8"?>
<project xmlns="https://maven.apache.org/POM/4.0.0" xmlns:xsi="https://www.w3.org/2001/XMLSchema-instance"
xsi:schemaLocation="https://maven.apache.org/POM/4.0.0 https://maven.apache.org/xsd/maven-4.0.0.xsd">
<modelVersion>4.0.0</modelVersion>
<parent>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-parent</artifactId>
<version>3.3.2-SNAPSHOT</version>
<relativePath/> <!-- lookup parent from repository -->
</parent>
<groupId>PaniECumpanagghiu</groupId>
<artifactId>PaniECumpanagghiu</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<name>PaniECumpanagghiu</name>
<description>Web app di food delivery per la sicilia sud orientale</description>
<url/>
<licenses>
<license/>
</licenses>
<developers>
<developer/>
</developers>
<scm>
<connection/>
<developerConnection/>
<tag/>
<url/>
</scm>
<properties>
<java.version>22</java.version>
<org.mapstruct.version>1.6.2</org.mapstruct.version>
</properties>
<dependencies>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-data-jpa</artifactId>
</dependency>
<!-- <dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-security</artifactId>
</dependency>-->
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-web</artifactId>
</dependency>
<dependency>
<groupId>com.mysql</groupId>
<artifactId>mysql-connector-j</artifactId>
<scope>runtime</scope>
</dependency>
<dependency>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<optional>true</optional>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-tomcat</artifactId>
<scope>provided</scope>
</dependency>
<dependency>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-starter-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.springframework.security</groupId>
<artifactId>spring-security-test</artifactId>
<scope>test</scope>
</dependency>
<dependency>
<groupId>org.mapstruct</groupId>
<artifactId>mapstruct</artifactId>
<version>${org.mapstruct.version}</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.springframework.boot</groupId>
<artifactId>spring-boot-maven-plugin</artifactId>
<configuration>
<excludes>
<exclude>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
</exclude>
</excludes>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<source>1.8</source> <!-- depending on your project -->
<target>1.8</target> <!-- depending on your project -->
<annotationProcessorPaths>
<path>
<groupId>org.mapstruct</groupId>
<artifactId>mapstruct-processor</artifactId>
<version>${org.mapstruct.version}</version>
</path>
<!-- other annotation processors -->
</annotationProcessorPaths>
</configuration>
</plugin>
</plugins>
</build>
<repositories>
<repository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<releases>
<enabled>false</enabled>
</releases>
</repository>
</repositories>
<pluginRepositories>
<pluginRepository>
<id>spring-snapshots</id>
<name>Spring Snapshots</name>
<url>https://repo.spring.io/snapshot</url>
<releases>
<enabled>false</enabled>
</releases>
</pluginRepository>
</pluginRepositories>
</project>
Because you are telling that perhaps the issue is connected to the interaction of Lombok and Mapstruct, perhaps (the pom.xml
file says other annotation processors
and I don't know if there are really others), you have to include both annotation processors in the maven-compiler-plugin
, like this:
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<configuration>
<annotationProcessorPaths>
<path>
<groupId>org.projectlombok</groupId>
<artifactId>lombok</artifactId>
<version>${lombok.version}</version>
</path>
<path>
<groupId>org.mapstruct</groupId>
<artifactId>mapstruct-processor</artifactId>
<version>${org.mapstruct.version}</version>
</path>
</annotationProcessorPaths>
</configuration>
</plugin>
Moreover: check if UtenteMapper
is annotated with componentModel = "spring"
, like this:
@Mapper(componentModel = "spring")
public interface UtenteMapper {
Without that attribute set (read the javadoc) the generated mapper can't be managed as a Spring bean and won't be injected with @Autowired
.
As a side note, just for conventions' sake: please use lower case starting packages, I suppose Eclipse is telling this already as a warning when creating classes and other packages.