我正在尝试设置 AspectJ for Metrics在一个简单的java项目中。
我在 pom.xml 中添加了所需的依赖项。当我执行 mvn compile 时，
我收到以下警告。它说，建议不适用。我哪里错了
[INFO] Showing AJC message detail for messages of types: [error, warning, fail]
[WARNING] advice defined in io.astefanutti.metrics.aspectj.TimedAspect has not been applied [Xlint:adviceDidNotMatch]
/root/.m2/repository/io/astefanutti/metrics/aspectj/metrics-aspectj/1.1.0/metrics-aspectj-1.1.0.jar!io/astefanutti/metrics/aspectj/TimedAspect.class:26
[WARNING] advice defined in io.astefanutti.metrics.aspectj.ExceptionMeteredAspect has not been applied [Xlint:adviceDidNotMatch]
/root/.m2/repository/io/astefanutti/metrics/aspectj/metrics-aspectj/1.1.0/metrics-aspectj-1.1.0.jar!io/astefanutti/metrics/aspectj/ExceptionMeteredAspect.class:26
[WARNING] advice defined in io.astefanutti.metrics.aspectj.MeteredAspect has not been applied [Xlint:adviceDidNotMatch]
/root/.m2/repository/io/astefanutti/metrics/aspectj/metrics-aspectj/1.1.0/metrics-aspectj-1.1.0.jar!io/astefanutti/metrics/aspectj/MeteredAspect.class:26
[WARNING] advice defined in io.astefanutti.metrics.aspectj.ExceptionMeteredStaticAspect has not been applied [Xlint:adviceDidNotMatch]
/root/.m2/repository/io/astefanutti/metrics/aspectj/metrics-aspectj/1.1.0/metrics-aspectj-1.1.0.jar!io/astefanutti/metrics/aspectj/ExceptionMeteredStaticAspect.class:26
这是我的 pom.xml
<dependencies>
<dependency>
<groupId>junit</groupId>
<artifactId>junit</artifactId>
<version>3.8.1</version>
<scope>test</scope>
</dependency>
<dependency>
<groupId>io.dropwizard.metrics</groupId>
<artifactId>metrics-core</artifactId>
<version>3.1.0</version>
</dependency>
<dependency>
<groupId>io.dropwizard.metrics</groupId>
<artifactId>metrics-graphite</artifactId>
<version>3.1.2</version>
</dependency>
<dependency>
<groupId>io.dropwizard.metrics</groupId>
<artifactId>metrics-annotation</artifactId>
<version>3.1.2</version>
</dependency>
<dependency>
<groupId>io.astefanutti.metrics.aspectj</groupId>
<artifactId>metrics-aspectj</artifactId>
<version>1.1.0</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjrt</artifactId>
<version>1.8.7</version>
</dependency>
<dependency>
<groupId>org.aspectj</groupId>
<artifactId>aspectjtools</artifactId>
<version>1.6.2</version>
</dependency>
<dependency>
<groupId>org.codehaus.mojo</groupId>
<artifactId>aspectj-maven-plugin</artifactId>
<version>1.8</version>
</dependency>
</dependencies>
<build>
<plugins>
<plugin>
<groupId>org.codehaus.mojo</groupId>
<artifactId>aspectj-maven-plugin</artifactId>
<version>1.8</version>
<configuration>
<complianceLevel>1.6</complianceLevel>
<source>1.6</source>
<target>1.6</target>
<aspectLibraries>
<aspectLibrary>
<groupId>io.astefanutti.metrics.aspectj</groupId>
<artifactId>metrics-aspectj</artifactId>
</aspectLibrary>
</aspectLibraries>
</configuration>
<executions>
<execution>
<goals>
<goal>compile</goal>
</goals>
</execution>
</executions>
</plugin>
<plugin>
<groupId>org.apache.maven.plugins</groupId>
<artifactId>maven-shade-plugin</artifactId>
<executions>
<execution>
<phase>package</phase>
<goals>
<goal>shade</goal>
</goals>
<configuration>
<filters>
<filter>
<artifact>*:*</artifact>
<excludes>
<exclude>META-INF/*.SF</exclude>
<exclude>META-INF/*.DSA</exclude>
<exclude>META-INF/*.RSA</exclude>
</excludes>
</filter>
</filters>
<transformers>
<transformer implementation="org.apache.maven.plugins.shade.resource.ManifestResourceTransformer">
<mainClass>dropwizard.App</mainClass>
</transformer>
</transformers>
</configuration>
</execution>
</executions>
</plugin>
</plugins>
</build>
这是我的代码:
package dropwizard;
import com.codahale.metrics.ConsoleReporter;
import com.codahale.metrics.MetricFilter;
import com.codahale.metrics.MetricRegistry;
import com.codahale.metrics.SharedMetricRegistries;
import com.codahale.metrics.annotation.Metered;
import com.codahale.metrics.annotation.Timed;
import com.codahale.metrics.graphite.Graphite;
import com.codahale.metrics.graphite.GraphiteReporter;
import io.astefanutti.metrics.aspectj.Metrics;
import java.net.InetSocketAddress;
import java.util.concurrent.TimeUnit;
/**
* Hello world!
*
*/
@Metrics(registry = "graphiteregistry2")
public class App
{
static final MetricRegistry registry = new MetricRegistry();
public static void main(String args[]) {
startReport();
test();
wait5Seconds();
}
static void startReport() {
final Graphite graphite = new Graphite(new InetSocketAddress("127.0.0.1", 2003));
final GraphiteReporter reporter = GraphiteReporter.forRegistry(registry)
.prefixedWith("test8.example.com")
.convertRatesTo(TimeUnit.SECONDS)
.convertDurationsTo(TimeUnit.MILLISECONDS)
.filter(MetricFilter.ALL)
.build(graphite);
reporter.start(1, TimeUnit.SECONDS);
ConsoleReporter reporter1 = ConsoleReporter.forRegistry(registry)
.convertRatesTo(TimeUnit.SECONDS)
.convertDurationsTo(TimeUnit.MILLISECONDS)
.build();
reporter1.start(3, TimeUnit.SECONDS);
SharedMetricRegistries.add("graphiteregistry2", registry);
}
static void wait5Seconds() {
try {
Thread.sleep(5*1000);
}
catch(InterruptedException e) {}
}
@Timed(name = "test8method")
@Metered(name = "methodmeter")
static void test() {
//Timer.Context time = responses.timer("test8.update").time();
System.out.println("inside test");
try {
for(int i=0;i<10000;i++){}
}
finally {
//time.stop();
}
}
}
最佳答案
警告仅表示在工具库中定义了某些切入点不会触发，因此未应用的切入点。查看您的代码，您确实没有使用它们或在不应应用它们的地方使用它们，因此警告只是描述了这种情况。详细说明:
@Metrics:已应用，无警告。@Timed:未应用，因为用于静态方法，因此是警告。如果您查看 aspect source code您会看到切入点仅针对非静态方法:execution(@Timed !static * (@Metrics Profiled+).*(..))@Metered:未应用，因为用于静态方法，因此是警告。如果您查看 aspect source code您会看到切入点仅针对非静态方法:execution(@Metered !static * (@Metrics Profiled+).*(..))
从 test() 方法中删除 static 并查看重新编译时会发生什么。
关于java - 尚未应用带有 AspectJ 抛出建议的删除向导指标，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/35739177/