java 文本内容中 截取 方法

java 文本内容中 截取 方法

 

private static String getMSG(InputStream in){while (m_str.indexOf(Constants.PNR_XML_SUFFIX)==-1) {if (m_maxSize<=0) {break;}int p_size = (m_maxSize>1024)?1024:m_maxSize;byte[] buffer = new byte[p_size];try {in.read(buffer);m_maxSize-=p_size;} catch (IOException e) {logger.error(e.getMessage());e.printStackTrace();}try {m_str += new String(buffer,"UTF-8");} catch (UnsupportedEncodingException e) {logger.error(e.getMessage());e.printStackTrace();} }

//Constants.PNR_XML_SUFFIX  是文本截取的表示

String [] p_list = m_str.split(Constants.PNR_XML_SUFFIX);    if (p_list.length >1) {m_str = p_list[1];} else {m_str = "";}if (p_list[0].isEmpty()) {return null;}return p_list[0];}