我正在尝试使用AspectJ创建日志文件，输出应该写入文件，日志文件具有特定的语法：
START
"THREAD_ID";"METHOD_NAME";"begin_or_end METHOD";"instant time"
STOP
代码不起作用:(
你可以帮助我？
import java.io.File;
import java.io.FileWriter;
import java.io.IOException;
import java.sql.Date;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.aspectj.lang.Signature;
aspect Trace{
private static File salva;
private static FileWriter fw;
pointcut traceMethods() : (execution(* *(..))&& !cflow(within(Trace)));
before(): traceMethods(){
salva = new File(".\trace.csv");
try {
fw = new FileWriter(salva,true);
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
Signature sig = thisJoinPointStaticPart.getSignature();
String line =""+ thisJoinPointStaticPart.getSourceLocation().getLine();
String sourceName = thisJoinPointStaticPart.getSourceLocation().getWithinType().getCanonicalName();
Logger.getLogger("Tracing").log(
Level.INFO,
"Call from "
+ sourceName
+" line " +
line
+" to " +sig.getDeclaringTypeName() + "." + sig.getName()
);
writeFile(sig);
try {
fw.close();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
public static void writeFile(Signature sig){
long temp = System.currentTimeMillis();
//inizio esecuzione traccia:
try {
fw.write("START\n");
fw.write("S02034;");
fw.write(sig.getDeclaringTypeName()+"."+sig.getName()+";"+temp+";"+"a\n");
fw.write("STOP\n");
fw.flush();
} catch (IOException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}