createInstance</a></span>(<a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a>&nbsp;fileName,
              <a href="http://docs.oracle.com/javase/7/docs/api/java/lang/String.html?is-external=true" title="java.lang中的类或接口">String</a>&nbsp;encoding,
              <a href="http://docs.oracle.com/javase/7/docs/api/java/util/concurrent/ConcurrentHashMap.html?is-external=true" title="java.util.concurrent中的类或接