我知道方法参数很容易捕获，仅使用@ Advice.AllArguments。从建议的方法中获取返回数据是否也很容易？我的目标是根本不修改方法，而只是“对进来的东西进行拍照”并将其写入文件。返回类型主要是javax的Response，但有时是原语。
public class MyAdviser {
@Advice.OnMethodEnter
public static void onEnter(@Advice.This Object obj, @Advice.Origin String method,
@Advice.AllArguments Object[] args) throws IOException {
FileWriter fw = new FileWriter("AgentData.txt", true);
BufferedWriter bw = new BufferedWriter(fw);
PrintWriter out = new PrintWriter(bw);
out.println(method);
out.println("Arguments : " + Arrays.deepToString(args));
out.println("---------------------------------------------");
out.close();
final Logger LOG = LoggerFactory.getLogger(obj.getClass());
LOG.info("Method name : " + method + " Object : " + obj + " " + obj.getClass());
LOG.info("Arguments : " + Arrays.deepToString(args));
}
@Advice.OnMethodExit
public static void onExit(@Advice.Origin String method) {
}
}
最佳答案
就像Advice类的javadoc中提到的那样：
@Advice.OnMethodExit
public static void onExit(@Advice.Origin String method,
@Advice.Return Object returned,
@Advice.Thrown Throwable thrown) {
// thrown will be null if no exception was thrown, returned if it was
}