java实现文件替换

如果没有通过服务器，可以直接写文件的绝对路径就行了，我是通过servlet先得到真实路径的。大家可以参考下，如果对你有用请给予好评，谢谢大家！

@SuppressWarnings("deprecation")
private void replaceWebFile(HttpServletRequest request) {
org.w3c.dom.Document document = null;
try {
String serverpath = request.getRealPath("");
DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
DocumentBuilder builder = factory.newDocumentBuilder();
document = builder.parse(new File(serverpath+
"/WEB-INF/classes/com/tjsoft/install/web/xml/web.xml"));
document.normalize();
TransformerFactory tFactory = TransformerFactory.newInstance();
Transformer transformer = tFactory.newTransformer();
DOMSource source = new DOMSource(document);
Result result = new StreamResult(new File(serverpath+"/WEB-INF/web.xml").toURI().getPath());
transformer.transform(source, result);

} catch (Exception ex) {
ex.printStackTrace();
}
}