问Java::JavaSql::SQLException:侦听器拒绝连接，错误如下

EN

input {
  jdbc {
    jdbc_driver_library => "D:\1SearchEngine\data\ojdbc14.jar"
    jdbc_driver_class => "Java::oracle.jdbc.OracleDriver"
    jdbc_connection_string => "jdbc:oracle:thin:@localhost:1521:xe"
    jdbc_user => "ub"
    jdbc_password => "1234567"
    statement => "select * from documents"
  }
}

output {
  elasticsearch {
    hosts => ["localhost:9200"]
    index => "documents"
  }
}