现在好多代码解耦特别严重，调用者也是特别多，以下代码获取某块代码的调用者信息，打印到控制台中。
public static void printCaller() {
try {
StackTraceElement[] trace = new Throwable().fillInStackTrace().getStackTrace();
String caller = "";
String callingClass = "";
String callFile = "";
int lineNumber = 0;
System.out.println("==========BEGIN OF CALLER INFO============");
for (int i = 2; i < trace.length; i++) {
callingClass = trace[i].getClassName();
callingClass = callingClass.substring(callingClass
.lastIndexOf('.') + 1);
caller = trace[i].getMethodName();
callFile = trace[i].getFileName();
lineNumber = trace[i].getLineNumber();
String method = String.format(Locale.US, "[%03d] %s.%s(%s:%d)"
, Thread.currentThread().getId(), callingClass, caller, callFile, lineNumber);
System.out.println(method);
}
System.out.println("==========END OF CALLER INFO============");
} catch (Exception e) {
e.printStackTrace();
}
}
