log4j2 不使用配置文件，动态生成logger对象

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import org.;
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/**
 *
 */
public class JobLogFactory {
  private JobLogFactory() {
  }
  public static void start( int jobId) {
//为false时，返回多个LoggerContext对象，   true：返回唯一的单例LoggerContext
final LoggerContext ctx = (LoggerContext) ( false );
    final Configuration config = ();
//创建一个展示的样式：PatternLayout，   还有其他的日志打印样式。
    Layout layout = (PatternLayout.DEFAULT_CONVERSION_PATTERN,
        config, null , null , true , false , null , null );
    //TriggeringPolicy tp = ("10MB");
    //Appender appender = (("
    // logs/test/syncshows-job-%", jobID),
     //       "/logs/test/" + jobID + "/syncshows-job-" + jobID + ".",
     //       "true", jobID, null, null, null, tp, null, layout, null,
     //       null, null, null, config);
//  日志打印方式——输出为文件
　Appender appender = (
        ( "logs/test/syncshows-job-%" , jobId), "true" , "false" ,
        "" + jobId, null , "true" , "true" , null , layout, null , null , null , config);
    ();
    (appender);
   AppenderRef ref = ( "" + jobId, null , null );
    AppenderRef[] refs = new AppenderRef[]{ref};
    LoggerConfig loggerConfig = ( "false" , , "" + jobId,
        "true" , refs, null , config, null );
    (appender, null , null );
    ( "" + jobId, loggerConfig);
    ();
  }
  public static void stop( int jobId) {
    final LoggerContext ctx = (LoggerContext) ( false );
    final Configuration config = ();
    ( "" + jobId).stop();
    ( "" + jobId).removeAppender( "" + jobId);
    ( "" + jobId);
    ();
  }
  /**
   * 获取Logger
   *
   * 如果不想使用slf4j,那这里改成直接返回Log4j的Logger即可
   * @param jobId
   * @return
   */
  public static Logger createLogger( int jobId) {
    start(jobId);
    return ( "" + jobId);
  }
}