code: public static Document readXML(InputSource source) {
  		final DocumentBuilder builder = createDocumentBuilder();
  		try {
  			return builder.parse(source);
  		} catch (Exception e) {
  			throw new UtilException(e, "Parse XML from stream error!");
  		}
  	}
docs: 读取解析XML文件<br>
  编码在XML中定义
  
  @param source {@link InputSource}
  @return XML文档对象
  @since 3.0.9