JVM Agent

• 例子
  • 打包 a.jar
    • MANIFEST.MF
      • Premain_Class: MyAgent

    • public class MyAgent {
          public static Instrumentation inst;
          public static void premain(String agentArgs, Instrumentation _inst) {
              inst = _inst;
          } 
      }

  • JVM参数 -javaagent: a.jar
  • 使用 MyAgent.inst