Java BufferedWriter Dateiinhalt ist leer

Question

Ich möchte eine Datei erstellen, mit CFG Erweiterung und der Inhalt dieser Datei muss im folgenden Format

define host { 
    host_name      test.testing.local 
    alias       Server 1 
    address       192.168.1.111 
    check_command     check-host-alive 
    max_check_attempts    10 
    check_interval     5 
    retry_interval     5 
    active_checks_enabled   1 
    passive_checks_enabled   1 
    check_period     24x7 
    register      1 
} 

Dazu verwende ich Code unten

@POST 
@Consumes("application/x-www-form-urlencoded") 
@Path("/addNewHost") 
public Response AddNewHost(String json) { 
    JSONObject returnJson = new JSONObject(); 

    try { 
     JSONObject innerJsonObj = new JSONObject(json); 
     HostObj hostObj = new HostObj(); 
     hostObj.hostname = innerJsonObj.getString("hostname"); 
     hostObj.ipaddress = innerJsonObj.getString("ipaddress"); 
     hostObj.alias = innerJsonObj.getString("alias"); 
     hostObj.check_command = innerJsonObj.getString("check_command"); 
     hostObj.notification_period = innerJsonObj.getString("notification_period"); 
     hostObj.max_check_attempts = innerJsonObj.getInt("max_check_attempts"); 
     hostObj.active_checks_enabled = innerJsonObj.getInt("active_checks_enabled"); 
     hostObj.passive_checks_enabled = innerJsonObj.getInt("passive_checks_enabled"); 
     hostObj.register = innerJsonObj.getBoolean("register"); 
     hostObj.chIntervalInMinutes = innerJsonObj.getInt("chIntervalInMinutes"); 
     hostObj.retryIntervalInMinutes = innerJsonObj.getInt("retryIntervalInMinutes"); 
     hostObj.contact_groups = innerJsonObj.getString("contact_groups"); 
     hostObj.check_period = innerJsonObj.getString("check_period"); 

     String filename = hostObj.ipaddress.replace(".", ""); 
     Properties propFile = LoadProp.getProperties(); 
     BufferedWriter writer = Files.newBufferedWriter(Paths.get(propFile.getProperty(Constants.filepath) + filename + ".cfg")); 
     writer.write("define host {\n"); 
     writer.write("\thost_name\t" + hostObj.hostname + "\n"); 
     writer.write("\talias\t" + hostObj.alias + "\n"); 
     writer.write("\taddress\t" + hostObj.ipaddress + "\n"); 
     writer.write("\tcheck_command\t" + hostObj.check_command + "\n"); 
     writer.write("\tmax_check_attempts\t" + hostObj.max_check_attempts + "\n"); 
     writer.write("\tcheck_interval\t" + hostObj.chIntervalInMinutes + "\n"); 
     writer.write("\tretry_interval\t" + hostObj.retryIntervalInMinutes + "\n"); 
     writer.write("\tactive_checks_enabled\t" + hostObj.active_checks_enabled + "\n"); 
     writer.write("\tpassive_checks_enabled\t" + hostObj.passive_checks_enabled + "\n"); 
     writer.write("\tcheck_period\t" + hostObj.check_period + "\n"); 
     writer.write("\tregister\t" + hostObj.register + "\n}"); 

     returnJson.put("success", true); 
    } catch (Exception e) { 
     JSONObject errorJson = new JSONObject(); 
     errorJson.put("success", false); 
     errorJson.put("error", errorMsg); 
     return Response.ok(errorJson.toString()).header("Access-Control-Allow-Origin", "*").build(); 
    } 

    return Response.ok(returnJson.toString()).header("Access-Control-Allow-Origin", "*").build(); 
} 

Aber Problem ist, dass, wenn ich dies ausführe, meine Datei mit leeren Daten erstellt wird. Bitte helfen Sie mir, dieses Problem zu beheben.

Ich verwende Java mit Eclipse Mars 1.

Answer 1

Sie müssen die Schriftsteller von

writer.flush(); 
writer.close();