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如何使用加载时间编织在一个 jar 中创建 @Aspect 并拦截另一个 jar 的方法？

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

 原文  2019-10-08 04:39:34  0   1    java/ aspectj/ aspectj-maven-plugin/ load-time-weaving

问题描述

我浏览了许多与 Aspect 相关的帖子，但似乎没有一个对我有帮助。 我看到很多帖子真的很旧，并且所有示例 GitHub 存储库只有一个。当我使用多个时，jar。

我知道我的常见 jar 被正确包含，因为我可以清楚地看到其他代码在工作。 当我构建常见的 jar 时，我看到我的方面打印在 output 日志中。

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

When I invoke the API in the UserSearch.jar it returns data properly, but the Aspect is never fired even though the controller method matches the pointcut of my aspect inside the Common Jar.

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Jar

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>

1 个解决方案

解决方案1
 1 已采纳  2019-10-08 12:40:16

我将您的源文件和 XML 文件复制到了新的 Maven 项目中。 我在评论中写的作为有根据的猜测实际上是正确的：

  • 您不需要任何 AspectJ LTW 或 CTW，即您可以删除

    • aop.xml （和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 非常适合您的多模块设置。

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

我必须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）并将 H2 数据库驱动程序添加到你的用户搜索POM。 然后一切都很顺利。

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