代码如下:

 

//将一个字符串转化为输入流
public static InputStream getStringStream(String sInputString){
if (sInputString != null && !sInputString.trim().equals("")){
try{
ByteArrayInputStream tInputStringStream = new ByteArrayInputStream(sInputString.getBytes());
return tInputStringStream;
}catch (Exception ex){
ex.printStackTrace();
}
}
return null;
}

例如,你在做一个文件流解析的时候,别人返回来给你的就是一个字符串格式的报文xml,你就需要这样做:

/**将服务器返回的交易报文xml转换为交易结果对象
*
* @author : EX-CHENWEIXIAN001 陈惟鲜
* @create_date :2013-8-2 下午01:40:25
* @param reponseXml
* @return
* @throws IOException
* @throws JDOMException
* @throws UnsupportedEncodingException
*/
public static CmsDealResponseDTO xmlToCmsDealResponseDTO(String reponseXml) throws UnsupportedEncodingException, JDOMException, IOException
{
if (reponseXml == null)
{
return null;
}

CmsDealResponseDTO cmsDealResponseDTO = null;
SAXBuilder sax = new SAXBuilder();

Document doc = sax.build( new ByteArrayInputStream(reponseXml.getBytes("UTF-8")));
Element root = doc.getRootElement(); // 根结点
List<Element> chlidrenList = root.getChildren();
cmsDealResponseDTO = setCmsDealResponseDTO(chlidrenList);

return cmsDealResponseDTO;
}