web services - How to log JAVA Webservice to a file -

i build service jax-rs (jersey 2.0) , tried implement logger writes down events errors or results requests. works fine! :) unfortunately creates file every time service called nice writes in 1 file.

have @ code (it's relevant part):

package webservice.feedbacks;  import java.io.ioexception; // imports  @path("webservice") public class deletefeedback {  logger logger = logger.getlogger("feedbacklogger"); @post @path("/deletefeedback") @consumes(mediatype.application_json + ";charset=utf-8") @produces("text/plain") public string setfeedbacks(string incoming){      filehandler fh;     jsonobject jsonobj = new jsonobject(incoming);      try {         fh = new filehandler("d:/eclipse-projekte/smartliveservice/logs/deletefeedback_log.log");         logger.addhandler(fh);         simpleformatter formatter = new simpleformatter();         fh.setformatter(formatter);         logger.info("----- beginn des protokolls -----");     } catch (securityexception | ioexception e) {e.getmessage();}      int id = jsonobj.getint("id");      string result = executequery(id);      logger.info("----- ende des protokolls -----");      return result; }  private string executequery(int id) {      try {         class.forname("com.mysql.jdbc.driver");     } catch (classnotfoundexception e) {logger.info("treiberfehler: " + e.getmessage());}      connection con = null;     statement stmt = null;      try{...} catch(sqlexception e){         logger.info("sql-fehler: " + e.getmessage());         return "error";     } {              try { if (stmt != null) stmt.close();} catch (exception e) {logger.info("das statement konnte nicht geschlossen werden: " + e.getmessage());};         try { if (con != null) con.close();} catch (exception e) {logger.info("die verbindung konnte nicht geschlossen werden: " + e.getmessage());};     }     return "success"; } }} 

as can see created filehandler. got tutorial because i'm not familiar java had been few years ago. code made database-query , sends results.

so, how have write code logs 1 file instead of creating new 1 every time interface called?

hope can me.

you should not initialize filehandler everytime method called. maybe should make static or initialize in constructor. see append also.