java agent开发

package com.java4all.grouth.agent;

import java.lang.instrument.Instrumentation;

/**
 * @description: java Agent
 * @author: IT云清
 */
public class MyAgent {

    public static void premain(String agentArgs, Instrumentation instrumentation) {
        System.out.println("This is MyAgent,args:"+agentArgs);
    }

}

Manifest-Version: 1.0
Premain-Class: com.java4all.grouth.agent.MyAgent
Can-Redefine-Classes: true
Can-Retransform-Classes: true

  <build>
      <finalName>my-agent</finalName>
      <plugins>
          <plugin>
            <groupId>org.springframework.boot</groupId>
            <artifactId>spring-boot-maven-plugin</artifactId>
          </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-jar-plugin</artifactId>
                <version>2.3.2</version>
                <configuration>
                    <archive>
                        <index>true</index>
                        <manifestFile>
                            src/main/resources/META-INF/MANIFEST.MF
                        </manifestFile>
                        <manifest>
                            <addDefaultImplementationEntries/>
                        </manifest>
                    </archive>
                </configuration>
            </plugin>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-compiler-plugin</artifactId>
                <configuration>
                    <source>1.8</source>
                    <target>1.8</target>
                </configuration>
            </plugin>
    </plugins>
  </build>

mvn clean package

-javaagent:/Users/ityunqing/mycode/grouth/target/my-agent.jar=IT云清