怎么让struts2返回xml形式的数据，jsp页面以xml格式显示数据

Answer 1

直接返回XML的参考下面的代码，更多参考http://lixueli26.javaeye.com/blog/698946
public String execute() throws Exception {
HttpServletRequest request = ServletActionContext.getRequest();
HttpServletResponse response = ServletActionContext.getResponse();
//HttpSession session = request.getSession();

response.setContentType("text/xml;");
PrintWriter out = response.getWriter();

URL url = new URL(request.getParameter("url"));
DataInputStream dis = new DataInputStream(url.openStream());
String sLine;
while ((sLine = dis.readLine()) != null){
out.println(sLine);
}

out.flush();
out.close();
// 不返回结果
return null;
}