如何使用 Load Time Weaving 在一个 jar 中创建 @Aspect 并从另一个 jar 中拦截方法?

How to create an @Aspect in one jar and intercept methods from another jar using Load Time Weaving?

我浏览了许多与 Aspect 相关的帖子,但其中 none 似乎对我有所帮助。我看到很多帖子真的很旧,所有示例 GitHub 存储库在我处理多个时只有一个 .jar。

我知道我的常用 jar 已被正确包含,因为我可以清楚地看到其他代码在工作。当我构建通用 jar 时,我会在输出日志中看到我的方面。

mvn clean install 日志

-------------------------------------------------------
 T E S T S
-------------------------------------------------------
[AppClassLoader@18b4aac2] info AspectJ Weaver Version 1.8.13 built on Wednesday Nov 15, 2017 at 19:26:44 GMT
[AppClassLoader@18b4aac2] info register classloader sun.misc.Launcher$AppClassLoader@18b4aac2
[AppClassLoader@18b4aac2] info using configuration /C:/Users/<username>/Documents/IntelliJ/Team-Common/team-common/target/classes/META-INF/aop.xml
[AppClassLoader@18b4aac2] info using configuration file:/C:/Users/<username>/.m2/repository/org/springframework/spring-aspects/4.3.13.RELEASE/spring-aspects-4.3.13.RELEASE.jar!/META-INF/aop.xml
[AppClassLoader@18b4aac2] info register aspect com.mycompany.myteam.common.aspect.MyAspect
[AppClassLoader@18b4aac2] info register aspect org.springframework.beans.factory.aspectj.AnnotationBeanConfigurerAspect
[AppClassLoader@18b4aac2] info register aspect org.springframework.scheduling.aspectj.AnnotationAsyncExecutionAspect
[AppClassLoader@18b4aac2] info register aspect org.springframework.transaction.aspectj.AnnotationTransactionAspect
[AppClassLoader@18b4aac2] info register aspect org.springframework.transaction.aspectj.JtaAnnotationTransactionAspect
[AppClassLoader@18b4aac2] info register aspect org.springframework.cache.aspectj.AnnotationCacheAspect
[AppClassLoader@18b4aac2] info register aspect org.springframework.cache.aspectj.JCacheCacheAspect
[AppClassLoader@18b4aac2] info deactivating aspect 'org.springframework.cache.aspectj.JCacheCacheAspect' as it requires type 'org.springframework.cache.jcache.interceptor.JCacheAspectSupport' which cannot be found on the classpath
[AppClassLoader@18b4aac2] info deactivating aspect 'org.springframework.cache.aspectj.JCacheCacheAspect' as it requires type 'javax.cache.annotation.CacheResult' which cannot be found on the classpath
[IsolatedClassLoader@48503868] info AspectJ Weaver Version 1.8.13 built on Wednesday Nov 15, 2017 at 19:26:44 GMT
[IsolatedClassLoader@48503868] info register classloader org.apache.maven.surefire.booter.IsolatedClassLoader@48503868
[IsolatedClassLoader@48503868] info using configuration /C:/Users/<username>/Documents/IntelliJ/Team-Common/team-common/target/classes/META-INF/aop.xml
[IsolatedClassLoader@48503868] info using configuration file:/C:/Users/<username>/.m2/repository/org/springframework/spring-aspects/4.3.13.RELEASE/spring-aspects-4.3.13.RELEASE.jar!/META-INF/aop.xml
[IsolatedClassLoader@48503868] info register aspect com.mycompany.myteam.common.aspect.MyAspect
[IsolatedClassLoader@48503868] info register aspect org.springframework.beans.factory.aspectj.AnnotationBeanConfigurerAspect
[IsolatedClassLoader@48503868] info register aspect org.springframework.scheduling.aspectj.AnnotationAsyncExecutionAspect
[IsolatedClassLoader@48503868] info register aspect org.springframework.transaction.aspectj.AnnotationTransactionAspect
[IsolatedClassLoader@48503868] info register aspect org.springframework.transaction.aspectj.JtaAnnotationTransactionAspect
[IsolatedClassLoader@48503868] info register aspect org.springframework.cache.aspectj.AnnotationCacheAspect
[IsolatedClassLoader@48503868] info register aspect org.springframework.cache.aspectj.JCacheCacheAspect
[IsolatedClassLoader@48503868] info deactivating aspect 'org.springframework.cache.aspectj.JCacheCacheAspect' as it requires type 'org.springframework.cache.jcache.interceptor.JCacheAspectSupport' which cannot be found on the classpath
[IsolatedClassLoader@48503868] info deactivating aspect 'org.springframework.cache.aspectj.JCacheCacheAspect' as it requires type 'javax.cache.annotation.CacheResult' which cannot be found on the classpath

Results :

Tests run: 0, Failures: 0, Errors: 0, Skipped: 0

当我在 UserSearch.jar 中正确调用 API 时,它 returns 数据正确,但是即使控制器方法与 Common 中我的方面的切入点匹配,方面也永远不会被触发罐.

为什么我的 Common Jar 方面没有拦截 UserSeach 应用程序?

这是我的应用程序结构。

普通罐子

package com.mycompany.myteam.common.aspect;

@Aspect
@Component
public class MyAspect {

    private static final Logger LOGGER = LoggerFactory.getLogger(AuditAdvice.class);


    @Around("execution(public * com.mycompany.myteam.*.*Controller.*(..)) "
          + "&& !execution(public * com.mycompany.myteam.*.AuditController.*(..))")
    public Object aroundRestEndpoints(ProceedingJoinPoint pjp) throws Throwable {

        System.err.println("\n\n---------------------------------INSIDE ASPECT---------------------------------\n\n");

        return pjp.proceed();

    }
}
package com.mycompany.myteam.common.config;

@Configuration
@EnableAspectJAutoProxy
public class CommonAppConfig {

    // ... Unrelated 
}

/src/main/resources/META-INF/aop.xml

<aspectj>
    <aspects>
        <aspect name="com.mycompany.myteam.common.aspect.MyAspect"/>
        <weaver options="-verbose -showWeaveInfo">
            <include within="com.mycompany.myteam.*"/>
        </weaver>
    </aspects>
</aspectj>

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.mycompany.myteam.common</groupId>
    <artifactId>team-common</artifactId>
    <version>1.0.0</version>
    <name>team-common</name>
    <description>team-common</description>


    <properties>
        <java.version>1.8</java.version>
        <maven.compiler.source>${java.version}</maven.compiler.source>
        <maven.compiler.target>${java.version}</maven.compiler.target>
        <packaging>jar</packaging>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>

        <!-- Dependency Versions -->
        <aspectj.version>1.8.13</aspectj.version>
    </properties>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.9.RELEASE</version>
    </parent>

    <dependencies>

        <!-- AOP -->
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjrt</artifactId>
            <version>${aspectj.version}</version>
        </dependency>
        <dependency>
            <groupId>org.aspectj</groupId>
            <artifactId>aspectjweaver</artifactId>
            <version>${aspectj.version}</version>
        </dependency>


        <!-- Spring -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>commons-logging</groupId>
                    <artifactId>commons-logging</artifactId>
                </exclusion>
            </exclusions>
        </dependency>


        <!-- Spring Boot -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-autoconfigure</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-configuration-processor</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-rest</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </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-web</artifactId>
        </dependency>
    </dependencies>


    <repositories>
        <repository>
            <id>central</id>
            <name>libs-release</name>
            <url>http://somerepo.com/artifacts/release</url>
            <releases>
                <enabled>true</enabled>
            </releases>
            <snapshots>
                <enabled>false</enabled>
            </snapshots>
        </repository>
        <repository>
            <id>snapshots</id>
            <name>libs-snapshot</name>
            <url>http://somerepo.com/artifacts/snapshot</url>
            <releases>
                <enabled>false</enabled>
            </releases>
            <snapshots>
                <enabled>true</enabled>
            </snapshots>
        </repository>
        <repository>
            <id>spring-milestones</id>
            <name>spring-milestones</name>
            <url>http://somerepo.com/artifacts/milestones</url>
            <releases>
                <enabled>true</enabled>
            </releases>
            <snapshots>
                <enabled>false</enabled>
            </snapshots>
        </repository>
    </repositories>

    <build>
        <pluginManagement>
            <plugins>
                <plugin>
                    <groupId>org.codehaus.mojo</groupId>
                    <artifactId>aspectj-maven-plugin</artifactId>
                    <version>1.11</version>
                    <configuration>
                        <showWeaveInfo>true</showWeaveInfo>
                        <source>${java.version}</source>
                        <target>${java.version}</target>
                        <Xlint>ignore</Xlint>
                        <complianceLevel>${java.version}</complianceLevel>
                        <encoding>UTF-8</encoding>
                        <verbose>true</verbose>
                    </configuration>
                    <executions>
                        <execution>
                            <phase>process-sources</phase>
                            <goals>
                                <goal>compile</goal>
                                <goal>test-compile</goal>
                            </goals>
                        </execution>
                    </executions>
                    <dependencies>
                        <dependency>
                            <groupId>org.aspectj</groupId>
                            <artifactId>aspectjtools</artifactId>
                            <version>${aspectj.version}</version>
                        </dependency>
                    </dependencies>
                </plugin>
            </plugins>
        </pluginManagement>
        <plugins>
            <plugin>
                <artifactId>maven-compiler-plugin</artifactId>
                <version>2.5.1</version>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.codehaus.mojo</groupId>
                <artifactId>aspectj-maven-plugin</artifactId>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-plugin</artifactId>
                <version>2.9</version>
                <configuration>
                    <argLine>-XX:-UseSplitVerifier</argLine>
                    <argLine>
                        -javaagent:"${settings.localRepository}"/org/aspectj/aspectjweaver/${aspectj.version}/aspectjweaver-${aspectj.version}.jar
                    </argLine>
                </configuration>
            </plugin>
        </plugins>
    </build>
</project>

UserSearch.jar

package com.mycompany.myteam.usersearch.controller;

@RestController
@RequestMapping("/usersearch")
public class UserSearchController {

    @Autowired
    private UserSearchService userSearchService;


    @RequestMapping(value = "/{name}", method = RequestMethod.GET, produces = "application/json")
    public List<UserDTO> search(@PathVariable("name") String name){
        return userSearchService.search(name);
    }
}
package com.mycompany.myteam.usersearch;

@SpringBootApplication
@ComponentScan("com.mycompany.myteam")
public class UserSearchApplication {

    public static void main(String[] args) {
        SpringApplication.run(UserSearchApplication.class, args);
    }
}    

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.mycompany.myteam.usersearch</groupId>
    <artifactId>user-search</artifactId>
    <version>1.0.0</version>
    <name>user-search</name>
    <description>user-search</description>

    <parent>
        <groupId>org.springframework.boot</groupId>
        <artifactId>spring-boot-starter-parent</artifactId>
        <version>1.5.9.RELEASE</version>
    </parent>

    <properties>
        <java.version>1.8</java.version>
        <maven.compiler.source>${java.version}</maven.compiler.source>
        <maven.compiler.target>${java.version}</maven.compiler.target>
        <packaging>jar</packaging>
        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
        <start-class>com.mycompany.myteam.usersearch.UserSearchApplication</start-class>
    </properties>

    <dependencies>

        <!-- Commons -->
        <dependency>
            <groupId>com.mycompany.myteam.common</groupId>
            <artifactId>team-common</artifactId>
            <version>1.0.0</version>
        </dependency>]

        <!-- Spring -->
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-context</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework</groupId>
            <artifactId>spring-webmvc</artifactId>
            <exclusions>
                <exclusion>
                    <groupId>commons-logging</groupId>
                    <artifactId>commons-logging</artifactId>
                </exclusion>
            </exclusions>
        </dependency>

        <!-- Spring Boot -->
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-autoconfigure</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-configuration-processor</artifactId>
            <optional>true</optional>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-rest</artifactId>
        </dependency>
        <dependency>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-starter-data-jpa</artifactId>
        </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-web</artifactId>
        </dependency>
    </dependencies>

    <build>
        <plugins>
            <plugin>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>${java.version}</source>
                    <target>${java.version}</target>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.springframework.boot</groupId>
                <artifactId>spring-boot-maven-plugin</artifactId>
            </plugin>
        </plugins>
    </build>
</project>

我将您的源代码和 XML 文件复制到新的 Maven 项目中。我在评论中写的作为有根据的猜测实际上是真的:

  • 您不需要任何 AspectJ LTW 或 CTW,即您可以删除

    • aop.xml(以及 META-INF 文件夹),
    • AspectJ Maven 插件,
    • 对 AspectJ 运行时和编织器的依赖,
    • Maven Surefire LTW 配置(删除整个插件)。
  • Spring AOP 与您的多模块设置配合得很好。

  • 如我所说,请修正你的切入点以匹配子包:
@Around(
  "execution(public * com.mycompany.myteam..*Controller.*(..)) && " +
  "!execution(public * com.mycompany.myteam..AuditController.*(..))"
)

我不得不在你的 类 中修复一些东西(例如重命名方面以匹配记录器名称,添加一个虚拟服务和具有相应方法的 DTO 以使代码编译)并添加 H2 数据库user-search POM 的驱动程序。然后一切正常。