java AspectJ&Maven警告:“未应用……中定义的建议?”
我正试图在编译时将某些方面编入一个项目,使之成为一场战争。方面建议在同一项目中的类(尽管在不同的包中)
我得到警告:
Advice not applied
我的相位没有被执行。以下是我的设置:
注释footannotation。爪哇:
package a;
@Retention(RetentionPolicy.RUNTIME)
@Target(ElementType.METHOD)
public @interface FooAnnotation {}
这是我的建议。aj:
package a;
public aspect FooAdvice {
private static final Log log = LogFactory.getLog(FooAdvice.class);
Object around() : call( @FooAnnotation * *(..)) {
log.info(String.format("Testing around"));
return proceed();
}
}
我还尝试了注释:
@Around("call( @FooAnnotation * *(..))")
public Object checkFoo( ProceedingJoinPoint joinPoint) throws Throwable {
据我所知,我的切入点规范是正确的,但由于某些原因,ajc编译器没有发挥作用
上课,上课。爪哇:
package b;
@ApplicationPath("/service")
@Path("/{param}")
@Produces("application/json")
@Provider
public class FooClass {
@POST
@PUT
@Path("/{context}/{resource}")
@FooAnnotation
public String updateResource(...) {}
波姆。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>zzz.group</groupId>
<artifactId>yyy.artifact</artifactId>
<version>0.0.1-SNAPSHOT</version>
<packaging>war</packaging>
<name>yyy.name</name>
<properties>
<endorsed.dir>${project.build.directory}/endorsed</endorsed.dir>
<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
<javaVersion>1.6</javaVersion>
<org.aspectj-version>1.7.2</org.aspectj-version>
</properties>
<dependencies>
<dependency>
... stuff ...
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjrt</artifactId>
<version>${org.aspectj-version}</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-compiler-plugin</artifactId>
<version>3.0</version>
<configuration>
<source>${javaVersion}</source>
<target>${javaVersion}</target>
<compilerArguments>
<endorseddirs>${endorsed.dir}</endorseddirs>
</compilerArguments>
</configuration>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-war-plugin</artifactId>
<version>2.1.1</version>
<configuration>
<failOnMissingWebXml>false</failOnMissingWebXml>
</configuration>
</plugin>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>aspectj-maven-plugin</artifactId>
<!--
Have to use version 1.2 since version 1.3 does not appear to work
with ITDs
-->
<version>1.4</version>
<dependencies>
<!--
You must use Maven 2.0.9 or above or these are ignored (see
MNG-2972)
-->
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjrt</artifactId>
<version>${org.aspectj-version}</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjtools</artifactId>
<version>${org.aspectj-version}</version>
</dependency>
</dependencies>
<executions>
<execution>
<goals>
<goal>compile</goal>
<!-- <goal>test-compile</goal> -->
</goals>
</execution>
</executions>
<configuration>
<outxml>true</outxml>
<source>${javaVersion}</source>
<target>${javaVersion}</target>
</configuration>
</plugin>
</plugins>
</build>
</project>
# 1 楼答案
啊哈!在这里找到了答案:
aspectj: why advice cannot be applied?
这与maven无关
原因是在我的示例中,该方法是通过间接加载从jax-rs框架内调用的。
call()
建议想要编织调用者,但ajc编译器无法知道调用者在哪里。解决方法是将通知更改为execution()
,从而:这是不同的,因为它围绕着执行(ajc可以找到),而不是调用方
完成了